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/**
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* '$RCSfile$'
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* Purpose: A Class that implements replication for metacat
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Chad Berkley
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*
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* '$Author$'
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* '$Date$'
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* '$Revision$'
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669
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jones
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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522
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berkley
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*/
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package edu.ucsb.nceas.metacat;
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import edu.ucsb.nceas.dbadapter.AbstractDatabase;
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522
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berkley
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import java.util.*;
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import java.util.Date;
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import java.io.*;
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import java.sql.*;
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import java.net.*;
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import java.lang.*;
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import java.text.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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574
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berkley
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sgarg
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import org.apache.log4j.Logger;
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522
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berkley
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import org.xml.sax.*;
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public class MetacatReplication extends HttpServlet implements Runnable
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2286
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tao
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{
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private long timeInterval;
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private Date firstTime;
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private boolean timedReplicationIsOn = false;
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522
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berkley
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Timer replicationDaemon;
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561
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berkley
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private static MetaCatUtil util = new MetaCatUtil();
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private Vector fileLocks = new Vector();
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private Thread lockThread = null;
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private static final AbstractDatabase dbAdapter = MetaCatUtil.dbAdapter;
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public static final String FORCEREPLICATEDELETE = "forcereplicatedelete";
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private static final String TIMEREPLICATION = "timedreplication";
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private static final String TIMEREPLICATIONINTERVAl = "timedreplicationinterval";
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private static final String FIRSTTIME = "firsttimedreplication";
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private static final int TIMEINTERVALLIMIT = 7200000;
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private static Logger logMetacat = Logger.getLogger(MetacatReplication.class);
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public static final String REPLICATIONUSER = "replication";
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sgarg
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/**
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* Initialize the servlet by creating appropriate database connections
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*/
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public void init(ServletConfig config) throws ServletException
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{
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//initialize db connections to handle any update requests
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MetaCatUtil util = new MetaCatUtil();
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//deltaT = util.getOption("deltaT");
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//the default deltaT can be set from metacat.properties
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//create a thread to do the delta-T check but don't execute it yet
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replicationDaemon = new Timer(true);
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try
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{
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timedReplicationIsOn = (new Boolean(util.getOption(TIMEREPLICATION ).trim())).booleanValue();
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sgarg
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logMetacat.info("The timed replication on is"+timedReplicationIsOn);
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timeInterval = (new Long(util.getOption(TIMEREPLICATIONINTERVAl).trim())).longValue();
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logMetacat.warn("The timed replication time Inerval is "+ timeInterval);
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String firstTimeStr = util.getOption(FIRSTTIME);
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logMetacat.warn("first replication time form property is "+firstTimeStr);
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firstTime = ReplicationHandler.combinateCurrentDateAndGivenTime(firstTimeStr);
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logMetacat.warn("After combine current time, the real first time is "
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+firstTime.toString()+" minisec");
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// set up time replication if it is on
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if (timedReplicationIsOn)
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{
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replicationDaemon.scheduleAtFixedRate(new ReplicationHandler(), firstTime, timeInterval);
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MetacatReplication.replLog("deltaT handler started with rate=" +
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timeInterval + " mini seconds at " +firstTime.toString());
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}
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}
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catch (Exception e)
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{
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// the timed replication in Metacat.properties file has problem
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// so timed replication is setting to false;
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logMetacat.error("Couldn't set up timed replication "+
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" in Metacat replication servlet init because " +
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e.getMessage());
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MetacatReplication.replErrorLog("Couldn't set up timed replication "+
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" in Metacat replication servlet init because " +
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e.getMessage());
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timedReplicationIsOn = false;
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}
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}
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public void destroy()
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{
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replicationDaemon.cancel();
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}
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public void doGet (HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException
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{
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// Process the data and send back the response
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handleGetOrPost(request, response);
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}
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException
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{
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// Process the data and send back the response
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handleGetOrPost(request, response);
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}
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private void handleGetOrPost(HttpServletRequest request,
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HttpServletResponse response)
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throws ServletException, IOException
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{
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//PrintWriter out = response.getWriter();
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//ServletOutputStream outPut = response.getOutputStream();
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Hashtable params = new Hashtable();
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Enumeration paramlist = request.getParameterNames();
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837
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// NOT NEEDED - doesn't provide enough security because of possible IP spoofing
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// REPLACED with running replication comminications over HTTPS
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// String requestingServerIP = request.getRemoteAddr();
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// InetAddress iaddr = InetAddress.getByName(requestingServerIP);
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// String requestingServer = iaddr.getHostName();
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bojilova
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while (paramlist.hasMoreElements()) {
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String name = (String)paramlist.nextElement();
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String[] value = request.getParameterValues(name);
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params.put(name, value);
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}
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840
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bojilova
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String action = ((String[])params.get("action"))[0];
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String server = null;
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2286
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tao
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837
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bojilova
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try {
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// check if the server is included in the list of replicated servers
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2286
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if ( !action.equals("servercontrol") &&
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840
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bojilova
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!action.equals("stop") &&
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!action.equals("start") &&
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!action.equals("getall") ) {
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server = ((String[])params.get("server"))[0];
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1292
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tao
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if ( getServerCodeForServerName(server) == 0 ) {
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2286
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System.out.println("Action \"" + action +
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840
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bojilova
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"\" rejected for server: " + server);
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return;
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} else {
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2286
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tao
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System.out.println("Action \"" + action +
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840
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bojilova
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"\" accepted for server: " + server);
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}
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727
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berkley
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}
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2586
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tao
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else
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{
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// start, stop, getall and servercontrol need to check
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// if user is administor
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HttpSession sess = request.getSession(true);
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String sess_id = "";
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String username = "";
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String[] groupnames = {""};
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Hashtable sessionHash = MetaCatServlet.getSessionHash();
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if (params.containsKey("sessionid"))
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{
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sess_id = ((String[]) params.get("sessionid"))[0];
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2663
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sgarg
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logMetacat.info("in has sessionid "+ sess_id);
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2586
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tao
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if (sessionHash.containsKey(sess_id))
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183 |
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{
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2663
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sgarg
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logMetacat.info("find the id " + sess_id + " in hash table");
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2586
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tao
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sess = (HttpSession) sessionHash.get(sess_id);
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}
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}
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username = (String) sess.getAttribute("username");
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189 |
2663
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sgarg
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logMetacat.warn("The user name from session is: "+ username);
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2586
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tao
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groupnames = (String[]) sess.getAttribute("groupnames");
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191 |
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if (!MetaCatUtil.isAdministrator(username, groupnames))
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192 |
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{
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193 |
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PrintWriter out = response.getWriter();
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out.print("<error>");
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195 |
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out.print("The user \"" + username +
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196 |
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"\" is not authorized for this action.");
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out.print("</error>");
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out.close();
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199 |
2663
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sgarg
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logMetacat.warn("The user \"" + username +
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200 |
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"\" is not authorized for this action: " +action);
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201 |
2586
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tao
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replErrorLog("The user \"" + username +
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202 |
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"\" is not authorized for this action: " +action);
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203 |
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return;
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}
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206 |
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}// this is final else
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207 |
837
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bojilova
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} catch (Exception e) {
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208 |
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System.out.println("Error in MetacatReplication.handleGetOrPost: " +
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209 |
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e.getMessage() );
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727
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berkley
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return;
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}
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212 |
2586
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tao
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213 |
2286
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tao
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if ( action.equals("readdata") )
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214 |
1020
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tao
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{
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215 |
2586
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tao
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OutputStream outStream = response.getOutputStream();
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216 |
1020
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tao
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//to get the data file.
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217 |
2586
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tao
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handleGetDataFileRequest(outStream, params, response);
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outStream.close();
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219 |
1020
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tao
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}
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220 |
2286
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tao
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else if ( action.equals("forcereplicatedatafile") )
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221 |
1023
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tao
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{
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222 |
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//read a specific docid from remote host, and store it into local host
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223 |
3233
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tao
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handleForceReplicateDataFileRequest(params, request);
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224 |
2286
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tao
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225 |
1023
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tao
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}
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226 |
1020
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tao
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else
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{
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228 |
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PrintWriter out = response.getWriter();
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229 |
840
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bojilova
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if ( action.equals("stop") ) {
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230 |
837
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bojilova
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//stop the replication server
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231 |
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replicationDaemon.cancel();
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232 |
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replicationDaemon = new Timer(true);
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233 |
2572
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tao
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timedReplicationIsOn = false;
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234 |
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MetaCatUtil.setOption(TIMEREPLICATION, (new Boolean(timedReplicationIsOn)).toString());
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235 |
837
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bojilova
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out.println("Replication Handler Stopped");
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MetacatReplication.replLog("deltaT handler stopped");
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238 |
2286
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tao
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239 |
840
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bojilova
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} else if ( action.equals("start") ) {
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240 |
2572
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tao
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String firstTimeStr = "";
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241 |
837
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bojilova
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//start the replication server
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242 |
2572
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tao
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if ( params.containsKey("rate") ) {
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243 |
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timeInterval = new Long(
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244 |
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new String(((String[])params.get("rate"))[0])).longValue();
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245 |
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if(timeInterval < TIMEINTERVALLIMIT) {
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246 |
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out.println("Replication deltaT rate cannot be less than "+
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247 |
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TIMEINTERVALLIMIT + " millisecs and system automatically setup the rate to "+TIMEINTERVALLIMIT);
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248 |
583
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berkley
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//deltaT<30 is a timing mess!
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249 |
2572
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tao
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timeInterval = TIMEINTERVALLIMIT;
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250 |
549
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berkley
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}
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251 |
837
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bojilova
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} else {
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252 |
2572
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tao
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timeInterval = TIMEINTERVALLIMIT ;
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253 |
837
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bojilova
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}
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254 |
2663
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sgarg
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logMetacat.info("New rate is: " + timeInterval + " mini seconds.");
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255 |
2572
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tao
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if ( params.containsKey("firsttime"))
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256 |
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{
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257 |
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firstTimeStr = ((String[])params.get("firsttime"))[0];
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258 |
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try
|
259 |
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{
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260 |
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firstTime = ReplicationHandler.combinateCurrentDateAndGivenTime(firstTimeStr);
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261 |
2663
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sgarg
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logMetacat.info("The first time setting is "+firstTime.toString());
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262 |
2572
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tao
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}
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263 |
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catch (Exception e)
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264 |
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{
|
265 |
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throw new ServletException(e.getMessage());
|
266 |
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}
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267 |
2663
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sgarg
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logMetacat.warn("After combine current time, the real first time is "
|
268 |
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+firstTime.toString()+" minisec");
|
269 |
2572
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tao
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}
|
270 |
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else
|
271 |
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{
|
272 |
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MetacatReplication.replErrorLog("You should specify the first time " +
|
273 |
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"to start a time replication");
|
274 |
2663
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sgarg
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logMetacat.warn("You should specify the first time " +
|
275 |
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"to start a time replication");
|
276 |
2572
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tao
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return;
|
277 |
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}
|
278 |
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|
279 |
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timedReplicationIsOn = true;
|
280 |
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// save settings to property file
|
281 |
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MetaCatUtil.setOption(TIMEREPLICATION, (new Boolean(timedReplicationIsOn)).toString());
|
282 |
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// note we couldn't use firstTime object because it has date info
|
283 |
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// we only need time info such as 10:00 PM
|
284 |
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MetaCatUtil.setOption(FIRSTTIME, firstTimeStr);
|
285 |
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MetaCatUtil.setOption(TIMEREPLICATIONINTERVAl, (new Long(timeInterval)).toString());
|
286 |
837
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bojilova
|
replicationDaemon.cancel();
|
287 |
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replicationDaemon = new Timer(true);
|
288 |
2572
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tao
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replicationDaemon.scheduleAtFixedRate(new ReplicationHandler(), firstTime,
|
289 |
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timeInterval);
|
290 |
837
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bojilova
|
out.println("Replication Handler Started");
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291 |
2286
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tao
|
MetacatReplication.replLog("deltaT handler started with rate=" +
|
292 |
2572
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tao
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timeInterval + " milliseconds at " +firstTime.toString());
|
293 |
837
|
bojilova
|
|
294 |
2286
|
tao
|
|
295 |
840
|
bojilova
|
} else if ( action.equals("getall") ) {
|
296 |
837
|
bojilova
|
//updates this server exactly once
|
297 |
2572
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tao
|
replicationDaemon.schedule(new ReplicationHandler(), 0);
|
298 |
837
|
bojilova
|
response.setContentType("text/html");
|
299 |
|
|
out.println("<html><body>\"Get All\" Done</body></html>");
|
300 |
|
|
|
301 |
840
|
bojilova
|
} else if ( action.equals("forcereplicate") ) {
|
302 |
1020
|
tao
|
//read a specific docid from remote host, and store it into local host
|
303 |
3233
|
tao
|
handleForceReplicateRequest(out, params, response, request);
|
304 |
2286
|
tao
|
|
305 |
2298
|
tao
|
} else if ( action.equals(FORCEREPLICATEDELETE) ) {
|
306 |
|
|
//read a specific docid from remote host, and store it into local host
|
307 |
3233
|
tao
|
handleForceReplicateDeleteRequest(out, params, response, request);
|
308 |
2298
|
tao
|
|
309 |
840
|
bojilova
|
} else if ( action.equals("update") ) {
|
310 |
837
|
bojilova
|
//request an update list from the server
|
311 |
|
|
handleUpdateRequest(out, params, response);
|
312 |
|
|
|
313 |
840
|
bojilova
|
} else if ( action.equals("read") ) {
|
314 |
837
|
bojilova
|
//request a specific document from the server
|
315 |
|
|
//note that this could be replaced by a call to metacatServlet
|
316 |
|
|
//handleGetDocumentAction().
|
317 |
|
|
handleGetDocumentRequest(out, params, response);
|
318 |
840
|
bojilova
|
} else if ( action.equals("getlock") ) {
|
319 |
837
|
bojilova
|
handleGetLockRequest(out, params, response);
|
320 |
|
|
|
321 |
840
|
bojilova
|
} else if ( action.equals("getdocumentinfo") ) {
|
322 |
837
|
bojilova
|
handleGetDocumentInfoRequest(out, params, response);
|
323 |
|
|
|
324 |
840
|
bojilova
|
} else if ( action.equals("gettime") ) {
|
325 |
837
|
bojilova
|
handleGetTimeRequest(out, params, response);
|
326 |
|
|
|
327 |
840
|
bojilova
|
} else if ( action.equals("getcatalog") ) {
|
328 |
837
|
bojilova
|
handleGetCatalogRequest(out, params, response, true);
|
329 |
|
|
|
330 |
840
|
bojilova
|
} else if ( action.equals("servercontrol") ) {
|
331 |
837
|
bojilova
|
handleServerControlRequest(out, params, response);
|
332 |
1097
|
tao
|
} else if ( action.equals("test") ) {
|
333 |
|
|
response.setContentType("text/html");
|
334 |
|
|
out.println("<html><body>Test successfully</body></html>");
|
335 |
837
|
bojilova
|
}
|
336 |
2286
|
tao
|
|
337 |
840
|
bojilova
|
out.close();
|
338 |
1020
|
tao
|
}//else
|
339 |
522
|
berkley
|
}
|
340 |
2286
|
tao
|
|
341 |
|
|
/**
|
342 |
595
|
berkley
|
* This method can add, delete and list the servers currently included in
|
343 |
|
|
* xml_replication.
|
344 |
|
|
* action subaction other needed params
|
345 |
|
|
* ---------------------------------------------------------
|
346 |
|
|
* servercontrol add server
|
347 |
|
|
* servercontrol delete server
|
348 |
2286
|
tao
|
* servercontrol list
|
349 |
595
|
berkley
|
*/
|
350 |
|
|
private void handleServerControlRequest(PrintWriter out, Hashtable params,
|
351 |
|
|
HttpServletResponse response)
|
352 |
|
|
{
|
353 |
|
|
String subaction = ((String[])params.get("subaction"))[0];
|
354 |
1217
|
tao
|
DBConnection dbConn = null;
|
355 |
|
|
int serialNumber = -1;
|
356 |
|
|
PreparedStatement pstmt = null;
|
357 |
1292
|
tao
|
String replicate =null;
|
358 |
|
|
String server = null;
|
359 |
|
|
String dataReplicate = null;
|
360 |
|
|
String hub = null;
|
361 |
837
|
bojilova
|
try {
|
362 |
1217
|
tao
|
//conn = util.openDBConnection();
|
363 |
|
|
dbConn=DBConnectionPool.
|
364 |
|
|
getDBConnection("MetacatReplication.handleServerControlRequest");
|
365 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
366 |
2286
|
tao
|
|
367 |
837
|
bojilova
|
// add server to server list
|
368 |
|
|
if ( subaction.equals("add") ) {
|
369 |
1292
|
tao
|
replicate = ((String[])params.get("replicate"))[0];
|
370 |
|
|
server = ((String[])params.get("server"))[0];
|
371 |
2286
|
tao
|
|
372 |
1292
|
tao
|
//Get data replication value
|
373 |
|
|
dataReplicate = ((String[])params.get("datareplicate"))[0];
|
374 |
|
|
//Get hub value
|
375 |
|
|
hub = ((String[])params.get("hub"))[0];
|
376 |
2286
|
tao
|
|
377 |
1751
|
tao
|
/*pstmt = dbConn.prepareStatement("INSERT INTO xml_replication " +
|
378 |
1292
|
tao
|
"(server, last_checked, replicate, datareplicate, hub) " +
|
379 |
837
|
bojilova
|
"VALUES ('" + server + "', to_date(" +
|
380 |
|
|
"'01/01/00', 'MM/DD/YY'), '" +
|
381 |
1292
|
tao
|
replicate +"', '" +dataReplicate+"', '"
|
382 |
1751
|
tao
|
+ hub +"')");*/
|
383 |
|
|
pstmt = dbConn.prepareStatement("INSERT INTO xml_replication " +
|
384 |
|
|
"(server, last_checked, replicate, datareplicate, hub) " +
|
385 |
2286
|
tao
|
"VALUES ('" + server + "', "+
|
386 |
|
|
dbAdapter.toDate("01/01/1980", "MM/DD/YYYY")
|
387 |
1751
|
tao
|
+ ", '" +
|
388 |
|
|
replicate +"', '" +dataReplicate+"', '"
|
389 |
1292
|
tao
|
+ hub +"')");
|
390 |
2286
|
tao
|
|
391 |
595
|
berkley
|
pstmt.execute();
|
392 |
837
|
bojilova
|
pstmt.close();
|
393 |
1217
|
tao
|
dbConn.commit();
|
394 |
2286
|
tao
|
out.println("Server " + server + " added");
|
395 |
631
|
berkley
|
response.setContentType("text/html");
|
396 |
|
|
out.println("<html><body><table border=\"1\">");
|
397 |
|
|
out.println("<tr><td><b>server</b></td><td><b>last_checked</b></td><td>");
|
398 |
1292
|
tao
|
out.println("<b>replicate</b></td>");
|
399 |
|
|
out.println("<td><b>datareplicate</b></td>");
|
400 |
|
|
out.println("<td><b>hub</b></td></tr>");
|
401 |
1217
|
tao
|
pstmt = dbConn.prepareStatement("SELECT * FROM xml_replication");
|
402 |
|
|
//increase dbconnection usage
|
403 |
|
|
dbConn.increaseUsageCount(1);
|
404 |
2286
|
tao
|
|
405 |
631
|
berkley
|
pstmt.execute();
|
406 |
|
|
ResultSet rs = pstmt.getResultSet();
|
407 |
|
|
boolean tablehasrows = rs.next();
|
408 |
837
|
bojilova
|
while(tablehasrows) {
|
409 |
631
|
berkley
|
out.println("<tr><td>" + rs.getString(2) + "</td><td>");
|
410 |
|
|
out.println(rs.getString(3) + "</td><td>");
|
411 |
1292
|
tao
|
out.println(rs.getString(4) + "</td><td>");
|
412 |
|
|
out.println(rs.getString(5) + "</td><td>");
|
413 |
|
|
out.println(rs.getString(6) + "</td></tr>");
|
414 |
2286
|
tao
|
|
415 |
631
|
berkley
|
tablehasrows = rs.next();
|
416 |
|
|
}
|
417 |
|
|
out.println("</table></body></html>");
|
418 |
2286
|
tao
|
|
419 |
840
|
bojilova
|
// download certificate with the public key on this server
|
420 |
|
|
// and import it as a trusted certificate
|
421 |
|
|
String certURL = ((String[])params.get("certificate"))[0];
|
422 |
|
|
downloadCertificate(certURL);
|
423 |
2286
|
tao
|
|
424 |
837
|
bojilova
|
// delete server from server list
|
425 |
|
|
} else if ( subaction.equals("delete") ) {
|
426 |
1292
|
tao
|
server = ((String[])params.get("server"))[0];
|
427 |
1217
|
tao
|
pstmt = dbConn.prepareStatement("DELETE FROM xml_replication " +
|
428 |
837
|
bojilova
|
"WHERE server LIKE '" + server + "'");
|
429 |
595
|
berkley
|
pstmt.execute();
|
430 |
837
|
bojilova
|
pstmt.close();
|
431 |
1217
|
tao
|
dbConn.commit();
|
432 |
837
|
bojilova
|
out.println("Server " + server + " deleted");
|
433 |
631
|
berkley
|
response.setContentType("text/html");
|
434 |
|
|
out.println("<html><body><table border=\"1\">");
|
435 |
|
|
out.println("<tr><td><b>server</b></td><td><b>last_checked</b></td><td>");
|
436 |
1292
|
tao
|
out.println("<b>replicate</b></td>");
|
437 |
|
|
out.println("<td><b>datareplicate</b></td>");
|
438 |
|
|
out.println("<td><b>hub</b></td></tr>");
|
439 |
2286
|
tao
|
|
440 |
1217
|
tao
|
pstmt = dbConn.prepareStatement("SELECT * FROM xml_replication");
|
441 |
|
|
//increase dbconnection usage
|
442 |
|
|
dbConn.increaseUsageCount(1);
|
443 |
631
|
berkley
|
pstmt.execute();
|
444 |
|
|
ResultSet rs = pstmt.getResultSet();
|
445 |
|
|
boolean tablehasrows = rs.next();
|
446 |
|
|
while(tablehasrows)
|
447 |
|
|
{
|
448 |
|
|
out.println("<tr><td>" + rs.getString(2) + "</td><td>");
|
449 |
|
|
out.println(rs.getString(3) + "</td><td>");
|
450 |
1292
|
tao
|
out.println(rs.getString(4) + "</td><td>");
|
451 |
|
|
out.println(rs.getString(5) + "</td><td>");
|
452 |
|
|
out.println(rs.getString(6) + "</td></tr>");
|
453 |
631
|
berkley
|
tablehasrows = rs.next();
|
454 |
|
|
}
|
455 |
|
|
out.println("</table></body></html>");
|
456 |
837
|
bojilova
|
|
457 |
|
|
// list servers in server list
|
458 |
|
|
} else if ( subaction.equals("list") ) {
|
459 |
595
|
berkley
|
response.setContentType("text/html");
|
460 |
|
|
out.println("<html><body><table border=\"1\">");
|
461 |
629
|
berkley
|
out.println("<tr><td><b>server</b></td><td><b>last_checked</b></td><td>");
|
462 |
1292
|
tao
|
out.println("<b>replicate</b></td>");
|
463 |
|
|
out.println("<td><b>datareplicate</b></td>");
|
464 |
|
|
out.println("<td><b>hub</b></td></tr>");
|
465 |
1217
|
tao
|
pstmt = dbConn.prepareStatement("SELECT * FROM xml_replication");
|
466 |
595
|
berkley
|
pstmt.execute();
|
467 |
|
|
ResultSet rs = pstmt.getResultSet();
|
468 |
|
|
boolean tablehasrows = rs.next();
|
469 |
837
|
bojilova
|
while(tablehasrows) {
|
470 |
595
|
berkley
|
out.println("<tr><td>" + rs.getString(2) + "</td><td>");
|
471 |
629
|
berkley
|
out.println(rs.getString(3) + "</td><td>");
|
472 |
1292
|
tao
|
out.println(rs.getString(4) + "</td><td>");
|
473 |
|
|
out.println(rs.getString(5) + "</td><td>");
|
474 |
|
|
out.println(rs.getString(6) + "</td></tr>");
|
475 |
595
|
berkley
|
tablehasrows = rs.next();
|
476 |
|
|
}
|
477 |
|
|
out.println("</table></body></html>");
|
478 |
2286
|
tao
|
}
|
479 |
1292
|
tao
|
else
|
480 |
|
|
{
|
481 |
2286
|
tao
|
|
482 |
1292
|
tao
|
out.println("<error>Unkonwn subaction</error>");
|
483 |
2286
|
tao
|
|
484 |
595
|
berkley
|
}
|
485 |
667
|
berkley
|
pstmt.close();
|
486 |
1217
|
tao
|
//conn.close();
|
487 |
837
|
bojilova
|
|
488 |
|
|
} catch(Exception e) {
|
489 |
2286
|
tao
|
System.out.println("Error in " +
|
490 |
|
|
"MetacatReplication.handleServerControlRequest " +
|
491 |
595
|
berkley
|
e.getMessage());
|
492 |
|
|
e.printStackTrace(System.out);
|
493 |
|
|
}
|
494 |
1217
|
tao
|
finally
|
495 |
|
|
{
|
496 |
|
|
try
|
497 |
|
|
{
|
498 |
|
|
pstmt.close();
|
499 |
|
|
}//try
|
500 |
|
|
catch (SQLException ee)
|
501 |
|
|
{
|
502 |
2663
|
sgarg
|
logMetacat.error("Error in " +
|
503 |
1217
|
tao
|
"MetacatReplication.handleServerControlRequest to close pstmt "
|
504 |
2663
|
sgarg
|
+ ee.getMessage());
|
505 |
1217
|
tao
|
}//catch
|
506 |
|
|
finally
|
507 |
|
|
{
|
508 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
509 |
|
|
}//finally
|
510 |
|
|
}//finally
|
511 |
2286
|
tao
|
|
512 |
595
|
berkley
|
}
|
513 |
2286
|
tao
|
|
514 |
|
|
// download certificate with the public key from certURL and
|
515 |
|
|
// upload it onto this server; it then must be imported as a
|
516 |
|
|
// trusted certificate
|
517 |
840
|
bojilova
|
private void downloadCertificate (String certURL)
|
518 |
|
|
throws FileNotFoundException, IOException, MalformedURLException
|
519 |
|
|
{
|
520 |
|
|
MetaCatUtil util = new MetaCatUtil();
|
521 |
|
|
String certPath = util.getOption("certPath"); //the path to be uploaded to
|
522 |
2286
|
tao
|
|
523 |
840
|
bojilova
|
// get filename from the URL of the certificate
|
524 |
|
|
String filename = certURL;
|
525 |
|
|
int slash = Math.max(filename.lastIndexOf('/'), filename.lastIndexOf('\\'));
|
526 |
|
|
if ( slash > -1 ) {
|
527 |
|
|
filename = filename.substring(slash + 1);
|
528 |
|
|
}
|
529 |
2286
|
tao
|
|
530 |
840
|
bojilova
|
// open file output strem to write the input into it
|
531 |
|
|
File f = new File(certPath, filename);
|
532 |
2286
|
tao
|
synchronized (f) {
|
533 |
840
|
bojilova
|
try {
|
534 |
|
|
if ( f.exists() ) {
|
535 |
|
|
throw new IOException("File already exist: " + f.getCanonicalFile());
|
536 |
|
|
//if ( f.exists() && !f.canWrite() ) {
|
537 |
|
|
// throw new IOException("Not writable: " + f.getCanonicalFile());
|
538 |
|
|
}
|
539 |
|
|
} catch (SecurityException se) {
|
540 |
|
|
// if a security manager exists,
|
541 |
|
|
// its checkRead method is called for f.exist()
|
542 |
|
|
// or checkWrite method is called for f.canWrite()
|
543 |
|
|
throw se;
|
544 |
|
|
}
|
545 |
2286
|
tao
|
|
546 |
840
|
bojilova
|
// create a buffered byte output stream
|
547 |
|
|
// that uses a default-sized output buffer
|
548 |
|
|
FileOutputStream fos = new FileOutputStream(f);
|
549 |
|
|
BufferedOutputStream out = new BufferedOutputStream(fos);
|
550 |
|
|
|
551 |
|
|
// this should be http url
|
552 |
|
|
URL url = new URL(certURL);
|
553 |
|
|
BufferedInputStream bis = null;
|
554 |
|
|
try {
|
555 |
|
|
bis = new BufferedInputStream(url.openStream());
|
556 |
|
|
byte[] buf = new byte[4 * 1024]; // 4K buffer
|
557 |
|
|
int b = bis.read(buf);
|
558 |
|
|
while (b != -1) {
|
559 |
|
|
out.write(buf, 0, b);
|
560 |
|
|
b = bis.read(buf);
|
561 |
|
|
}
|
562 |
|
|
} finally {
|
563 |
|
|
if (bis != null) bis.close();
|
564 |
|
|
}
|
565 |
|
|
// the input and the output streams must be closed
|
566 |
|
|
bis.close();
|
567 |
2286
|
tao
|
out.flush();
|
568 |
|
|
out.close();
|
569 |
|
|
fos.close();
|
570 |
840
|
bojilova
|
} // end of synchronized(f)
|
571 |
|
|
}
|
572 |
2286
|
tao
|
|
573 |
583
|
berkley
|
/**
|
574 |
1020
|
tao
|
* when a forcereplication request comes in, local host sends a read request
|
575 |
|
|
* to the requesting server (remote server) for the specified docid.
|
576 |
|
|
* Then store it in local database.
|
577 |
583
|
berkley
|
*/
|
578 |
574
|
berkley
|
private void handleForceReplicateRequest(PrintWriter out, Hashtable params,
|
579 |
3233
|
tao
|
HttpServletResponse response, HttpServletRequest request)
|
580 |
574
|
berkley
|
{
|
581 |
837
|
bojilova
|
String server = ((String[])params.get("server"))[0]; // the server that
|
582 |
|
|
String docid = ((String[])params.get("docid"))[0]; // sent the document
|
583 |
|
|
String dbaction = "UPDATE"; // the default action is UPDATE
|
584 |
577
|
berkley
|
boolean override = false;
|
585 |
|
|
int serverCode = 1;
|
586 |
1217
|
tao
|
DBConnection dbConn = null;
|
587 |
|
|
int serialNumber = -1;
|
588 |
2286
|
tao
|
|
589 |
837
|
bojilova
|
try {
|
590 |
|
|
//if the url contains a dbaction then the default action is overridden
|
591 |
|
|
if(params.containsKey("dbaction")) {
|
592 |
577
|
berkley
|
dbaction = ((String[])params.get("dbaction"))[0];
|
593 |
1057
|
tao
|
//serverCode = MetacatReplication.getServerCode(server);
|
594 |
|
|
//override = true; //we are now overriding the default action
|
595 |
577
|
berkley
|
}
|
596 |
1292
|
tao
|
MetacatReplication.replLog("force replication request from " + server);
|
597 |
2663
|
sgarg
|
logMetacat.info("Force replication request from: "+ server);
|
598 |
|
|
logMetacat.info("Force replication docid: "+docid);
|
599 |
|
|
logMetacat.info("Force replication action: "+dbaction);
|
600 |
1292
|
tao
|
// sending back read request to remote server
|
601 |
1014
|
tao
|
URL u = new URL("https://" + server + "?server="
|
602 |
|
|
+util.getLocalReplicationServerName()
|
603 |
|
|
+"&action=read&docid=" + docid);
|
604 |
574
|
berkley
|
String xmldoc = MetacatReplication.getURLContent(u);
|
605 |
2286
|
tao
|
|
606 |
837
|
bojilova
|
// get the document info from server
|
607 |
2286
|
tao
|
URL docinfourl = new URL("https://" + server +
|
608 |
1014
|
tao
|
"?server="+util.getLocalReplicationServerName()
|
609 |
|
|
+"&action=getdocumentinfo&docid=" + docid);
|
610 |
2286
|
tao
|
|
611 |
574
|
berkley
|
String docInfoStr = MetacatReplication.getURLContent(docinfourl);
|
612 |
2286
|
tao
|
|
613 |
837
|
bojilova
|
//dih is the parser for the docinfo xml format
|
614 |
574
|
berkley
|
DocInfoHandler dih = new DocInfoHandler();
|
615 |
|
|
XMLReader docinfoParser = ReplicationHandler.initParser(dih);
|
616 |
|
|
docinfoParser.parse(new InputSource(new StringReader(docInfoStr)));
|
617 |
|
|
Hashtable docinfoHash = dih.getDocInfo();
|
618 |
2286
|
tao
|
|
619 |
1292
|
tao
|
// Get user owner of this docid
|
620 |
574
|
berkley
|
String user = (String)docinfoHash.get("user_owner");
|
621 |
1292
|
tao
|
// Get home server of this docid
|
622 |
1057
|
tao
|
String homeServer=(String)docinfoHash.get("home_server");
|
623 |
2624
|
tao
|
String createdDate = (String)docinfoHash.get("date_created");
|
624 |
|
|
String updatedDate = (String)docinfoHash.get("date_updated");
|
625 |
2663
|
sgarg
|
logMetacat.info("homeServer: "+homeServer);
|
626 |
1561
|
tao
|
// Get Document type
|
627 |
|
|
String docType = (String)docinfoHash.get("doctype");
|
628 |
2663
|
sgarg
|
logMetacat.info("docType: "+docType);
|
629 |
1561
|
tao
|
String parserBase = null;
|
630 |
|
|
// this for eml2 and we need user eml2 parser
|
631 |
2286
|
tao
|
if (docType != null &&
|
632 |
2169
|
sgarg
|
(docType.trim()).equals(DocumentImpl.EML2_0_0NAMESPACE))
|
633 |
1561
|
tao
|
{
|
634 |
2663
|
sgarg
|
logMetacat.warn("This is an eml200 document!");
|
635 |
2163
|
tao
|
parserBase = DocumentImpl.EML200;
|
636 |
1561
|
tao
|
}
|
637 |
2286
|
tao
|
else if (docType != null && (docType.trim()).equals(DocumentImpl.EML2_0_1NAMESPACE))
|
638 |
|
|
{
|
639 |
2663
|
sgarg
|
logMetacat.warn("This is an eml2.0.1 document!");
|
640 |
2286
|
tao
|
parserBase = DocumentImpl.EML200;
|
641 |
|
|
}
|
642 |
|
|
else if (docType != null && (docType.trim()).equals(DocumentImpl.EML2_1_0NAMESPACE))
|
643 |
|
|
{
|
644 |
2663
|
sgarg
|
logMetacat.warn("This is an eml2.1.0 document!");
|
645 |
2286
|
tao
|
parserBase = DocumentImpl.EML210;
|
646 |
|
|
}
|
647 |
2663
|
sgarg
|
logMetacat.warn("The parserBase is: "+parserBase);
|
648 |
2286
|
tao
|
|
649 |
1292
|
tao
|
// Get DBConnection from pool
|
650 |
1217
|
tao
|
dbConn=DBConnectionPool.
|
651 |
|
|
getDBConnection("MetacatReplication.handleForceReplicateRequest");
|
652 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
653 |
1292
|
tao
|
// write the document to local database
|
654 |
1561
|
tao
|
DocumentImplWrapper wrapper = new DocumentImplWrapper(parserBase, false);
|
655 |
2286
|
tao
|
wrapper.writeReplication(dbConn, new StringReader(xmldoc), null, null,
|
656 |
2624
|
tao
|
dbaction, docid, user, null, homeServer,
|
657 |
3230
|
tao
|
server, createdDate, updatedDate);
|
658 |
|
|
|
659 |
584
|
berkley
|
MetacatReplication.replLog("document " + docid + " added to DB with " +
|
660 |
|
|
"action " + dbaction);
|
661 |
3233
|
tao
|
EventLog.getInstance().log(request.getRemoteAddr(), REPLICATIONUSER, docid, dbaction);
|
662 |
1292
|
tao
|
}//try
|
663 |
2286
|
tao
|
catch(Exception e)
|
664 |
1292
|
tao
|
{
|
665 |
2286
|
tao
|
MetacatReplication.replErrorLog("document " + docid +
|
666 |
1583
|
tao
|
" failed to added to DB with " +
|
667 |
|
|
"action " + dbaction + " because "+
|
668 |
|
|
e.getMessage());
|
669 |
2663
|
sgarg
|
logMetacat.error("ERROR in MetacatReplication.handleForceReplicate" +
|
670 |
|
|
"Request(): " + e.getMessage());
|
671 |
2286
|
tao
|
|
672 |
1292
|
tao
|
}//catch
|
673 |
1217
|
tao
|
finally
|
674 |
|
|
{
|
675 |
1292
|
tao
|
// Return the checked out DBConnection
|
676 |
1217
|
tao
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
677 |
|
|
}//finally
|
678 |
574
|
berkley
|
}
|
679 |
2286
|
tao
|
|
680 |
2298
|
tao
|
/*
|
681 |
|
|
* when a forcereplication delete request comes in, local host will delete this
|
682 |
|
|
* document
|
683 |
|
|
*/
|
684 |
|
|
private void handleForceReplicateDeleteRequest(PrintWriter out, Hashtable params,
|
685 |
3233
|
tao
|
HttpServletResponse response, HttpServletRequest request)
|
686 |
2298
|
tao
|
{
|
687 |
|
|
String server = ((String[])params.get("server"))[0]; // the server that
|
688 |
|
|
String docid = ((String[])params.get("docid"))[0]; // sent the document
|
689 |
|
|
try
|
690 |
|
|
{
|
691 |
|
|
MetacatReplication.replLog("force replication delete request from " + server);
|
692 |
|
|
MetacatReplication.replLog("force replication delete docid " + docid);
|
693 |
2663
|
sgarg
|
logMetacat.info("Force replication delete request from: "+ server);
|
694 |
|
|
logMetacat.info("Force replication delete docid: "+docid);
|
695 |
3230
|
tao
|
DocumentImpl.delete(docid, null, null, server);
|
696 |
2298
|
tao
|
MetacatReplication.replLog("document " + docid + " was successfully deleted ");
|
697 |
3233
|
tao
|
EventLog.getInstance().log(request.getRemoteAddr(), REPLICATIONUSER, docid, "delete");
|
698 |
2663
|
sgarg
|
logMetacat.info("document " + docid + " was successfully deleted ");
|
699 |
2298
|
tao
|
}
|
700 |
|
|
catch(Exception e)
|
701 |
|
|
{
|
702 |
|
|
MetacatReplication.replErrorLog("document " + docid +
|
703 |
|
|
" failed to delete because "+
|
704 |
|
|
e.getMessage());
|
705 |
2663
|
sgarg
|
logMetacat.error("ERROR in MetacatReplication.handleForceDeleteReplicate" +
|
706 |
|
|
"Request(): " + e.getMessage());
|
707 |
2298
|
tao
|
|
708 |
|
|
}//catch
|
709 |
|
|
|
710 |
|
|
}
|
711 |
|
|
|
712 |
|
|
|
713 |
561
|
berkley
|
/**
|
714 |
2286
|
tao
|
* when a forcereplication data file request comes in, local host sends a
|
715 |
|
|
* readdata request to the requesting server (remote server) for the specified
|
716 |
1023
|
tao
|
* docid. Then store it in local database and file system
|
717 |
|
|
*/
|
718 |
3233
|
tao
|
private void handleForceReplicateDataFileRequest(Hashtable params, HttpServletRequest request)
|
719 |
1023
|
tao
|
{
|
720 |
2286
|
tao
|
|
721 |
1023
|
tao
|
//make sure there is some parameters
|
722 |
|
|
if(params.isEmpty())
|
723 |
|
|
{
|
724 |
|
|
return;
|
725 |
|
|
}
|
726 |
2286
|
tao
|
// Get remote server
|
727 |
|
|
String server = ((String[])params.get("server"))[0];
|
728 |
1292
|
tao
|
// the docid should include rev number
|
729 |
2286
|
tao
|
String docid = ((String[])params.get("docid"))[0];
|
730 |
1292
|
tao
|
// Make sure there is a docid and server
|
731 |
|
|
if (docid==null || server==null || server.equals(""))
|
732 |
1023
|
tao
|
{
|
733 |
2663
|
sgarg
|
logMetacat.error("Didn't specify docid or server for replication");
|
734 |
1023
|
tao
|
return;
|
735 |
|
|
}
|
736 |
2286
|
tao
|
|
737 |
1292
|
tao
|
// Overide or not
|
738 |
1023
|
tao
|
boolean override = false;
|
739 |
1292
|
tao
|
// dbaction - update or insert
|
740 |
1023
|
tao
|
String dbaction=null;
|
741 |
2286
|
tao
|
|
742 |
|
|
try
|
743 |
1023
|
tao
|
{
|
744 |
1292
|
tao
|
//docid was switch to two parts uinque code and rev
|
745 |
2650
|
tao
|
//String uniqueCode=MetaCatUtil.getDocIdFromString(docid);
|
746 |
|
|
//int rev=MetaCatUtil.getVersionFromString(docid);
|
747 |
2286
|
tao
|
if(params.containsKey("dbaction"))
|
748 |
1023
|
tao
|
{
|
749 |
|
|
dbaction = ((String[])params.get("dbaction"))[0];
|
750 |
|
|
}
|
751 |
|
|
else//default value is update
|
752 |
|
|
{
|
753 |
|
|
dbaction = "update";
|
754 |
|
|
}
|
755 |
2286
|
tao
|
|
756 |
|
|
MetacatReplication.replLog("force replication request from " + server);
|
757 |
2663
|
sgarg
|
logMetacat.info("Force replication request from: "+ server);
|
758 |
|
|
logMetacat.info("Force replication docid: "+docid);
|
759 |
|
|
logMetacat.info("Force replication action: "+dbaction);
|
760 |
1023
|
tao
|
// get the document info from server
|
761 |
2286
|
tao
|
URL docinfourl = new URL("https://" + server +
|
762 |
1023
|
tao
|
"?server="+util.getLocalReplicationServerName()
|
763 |
2650
|
tao
|
+"&action=getdocumentinfo&docid=" + docid);
|
764 |
2286
|
tao
|
|
765 |
1023
|
tao
|
String docInfoStr = MetacatReplication.getURLContent(docinfourl);
|
766 |
|
|
|
767 |
|
|
//dih is the parser for the docinfo xml format
|
768 |
|
|
DocInfoHandler dih = new DocInfoHandler();
|
769 |
|
|
XMLReader docinfoParser = ReplicationHandler.initParser(dih);
|
770 |
|
|
docinfoParser.parse(new InputSource(new StringReader(docInfoStr)));
|
771 |
|
|
Hashtable docinfoHash = dih.getDocInfo();
|
772 |
|
|
String user = (String)docinfoHash.get("user_owner");
|
773 |
2286
|
tao
|
|
774 |
1023
|
tao
|
String docName = (String)docinfoHash.get("docname");
|
775 |
2286
|
tao
|
|
776 |
1023
|
tao
|
String docType = (String)docinfoHash.get("doctype");
|
777 |
2286
|
tao
|
|
778 |
1065
|
tao
|
String docHomeServer= (String)docinfoHash.get("home_server");
|
779 |
2624
|
tao
|
|
780 |
|
|
String createdDate = (String)docinfoHash.get("date_created");
|
781 |
|
|
|
782 |
|
|
String updatedDate = (String)docinfoHash.get("date_updated");
|
783 |
2663
|
sgarg
|
logMetacat.info("docHomeServer of datafile: "+docHomeServer);
|
784 |
2286
|
tao
|
|
785 |
|
|
|
786 |
|
|
|
787 |
1023
|
tao
|
//if action is delete, we don't delete the data file. Just archieve
|
788 |
|
|
//the xml_documents
|
789 |
2298
|
tao
|
/*if (dbaction.equals("delete"))
|
790 |
1023
|
tao
|
{
|
791 |
1217
|
tao
|
//conn = util.getConnection();
|
792 |
|
|
DocumentImpl.delete(docid,user,null);
|
793 |
|
|
//util.returnConnection(conn);
|
794 |
2298
|
tao
|
}*/
|
795 |
1031
|
tao
|
//To data file insert or update is same
|
796 |
2298
|
tao
|
if (dbaction.equals("insert")||dbaction.equals("update"))
|
797 |
1023
|
tao
|
{
|
798 |
|
|
//Get data file and store it into local file system.
|
799 |
|
|
// sending back readdata request to server
|
800 |
|
|
URL url = new URL("https://" + server + "?server="
|
801 |
|
|
+util.getLocalReplicationServerName()
|
802 |
|
|
+"&action=readdata&docid=" + docid);
|
803 |
1031
|
tao
|
String datafilePath = util.getOption("datafilepath");
|
804 |
|
|
//register data file into xml_documents table and wite data file
|
805 |
|
|
//into file system
|
806 |
2286
|
tao
|
DocumentImpl.writeDataFileInReplication(url.openStream(), datafilePath,
|
807 |
2608
|
tao
|
docName, docType, docid, user,docHomeServer,server,
|
808 |
3230
|
tao
|
DocumentImpl.DOCUMENTTABLE, false, createdDate, updatedDate);
|
809 |
2624
|
tao
|
//false means non-timed replication
|
810 |
3233
|
tao
|
MetacatReplication.replLog("datafile " + docid + " added to DB with " +
|
811 |
|
|
"action " + dbaction);
|
812 |
|
|
EventLog.getInstance().log(request.getRemoteAddr(), REPLICATIONUSER, docid, dbaction);
|
813 |
1023
|
tao
|
}
|
814 |
2286
|
tao
|
|
815 |
|
|
|
816 |
|
|
|
817 |
3233
|
tao
|
|
818 |
2286
|
tao
|
}
|
819 |
|
|
catch(Exception e)
|
820 |
1023
|
tao
|
{
|
821 |
2286
|
tao
|
|
822 |
|
|
MetacatReplication.replErrorLog("Datafile " + docid +
|
823 |
1583
|
tao
|
" failed to added to DB with " +
|
824 |
|
|
"action " + dbaction + " because "+
|
825 |
|
|
e.getMessage());
|
826 |
2663
|
sgarg
|
logMetacat.error
|
827 |
1292
|
tao
|
("ERROR in MetacatReplication.handleForceDataFileReplicate" +
|
828 |
2663
|
sgarg
|
"Request(): " + e.getMessage());
|
829 |
1023
|
tao
|
}
|
830 |
|
|
}
|
831 |
|
|
/**
|
832 |
561
|
berkley
|
* Grants or denies a lock to a requesting host.
|
833 |
|
|
* The servlet parameters of interrest are:
|
834 |
|
|
* docid: the docid of the file the lock is being requested for
|
835 |
|
|
* currentdate: the timestamp of the document on the remote server
|
836 |
2286
|
tao
|
*
|
837 |
561
|
berkley
|
*/
|
838 |
|
|
private void handleGetLockRequest(PrintWriter out, Hashtable params,
|
839 |
|
|
HttpServletResponse response)
|
840 |
|
|
{
|
841 |
1292
|
tao
|
|
842 |
561
|
berkley
|
try
|
843 |
|
|
{
|
844 |
2286
|
tao
|
|
845 |
561
|
berkley
|
String docid = ((String[])params.get("docid"))[0];
|
846 |
580
|
berkley
|
String remoteRev = ((String[])params.get("updaterev"))[0];
|
847 |
1217
|
tao
|
DocumentImpl requestDoc = new DocumentImpl(docid);
|
848 |
584
|
berkley
|
MetacatReplication.replLog("lock request for " + docid);
|
849 |
580
|
berkley
|
int localRevInt = requestDoc.getRev();
|
850 |
|
|
int remoteRevInt = Integer.parseInt(remoteRev);
|
851 |
2286
|
tao
|
|
852 |
580
|
berkley
|
if(remoteRevInt >= localRevInt)
|
853 |
561
|
berkley
|
{
|
854 |
|
|
if(!fileLocks.contains(docid))
|
855 |
580
|
berkley
|
{ //grant the lock if it is not already locked
|
856 |
561
|
berkley
|
fileLocks.add(0, docid); //insert at the beginning of the queue Vector
|
857 |
|
|
//send a message back to the the remote host authorizing the insert
|
858 |
|
|
out.println("<lockgranted><docid>" +docid+ "</docid></lockgranted>");
|
859 |
|
|
lockThread = new Thread(this);
|
860 |
|
|
lockThread.setPriority(Thread.MIN_PRIORITY);
|
861 |
|
|
lockThread.start();
|
862 |
584
|
berkley
|
MetacatReplication.replLog("lock granted for " + docid);
|
863 |
561
|
berkley
|
}
|
864 |
|
|
else
|
865 |
|
|
{ //deny the lock
|
866 |
|
|
out.println("<filelocked><docid>" + docid + "</docid></filelocked>");
|
867 |
2286
|
tao
|
MetacatReplication.replLog("lock denied for " + docid +
|
868 |
584
|
berkley
|
"reason: file already locked");
|
869 |
561
|
berkley
|
}
|
870 |
|
|
}
|
871 |
|
|
else
|
872 |
|
|
{//deny the lock.
|
873 |
|
|
out.println("<outdatedfile><docid>" + docid + "</docid></filelocked>");
|
874 |
2286
|
tao
|
MetacatReplication.replLog("lock denied for " + docid +
|
875 |
584
|
berkley
|
"reason: client has outdated file");
|
876 |
561
|
berkley
|
}
|
877 |
1217
|
tao
|
//conn.close();
|
878 |
561
|
berkley
|
}
|
879 |
|
|
catch(Exception e)
|
880 |
|
|
{
|
881 |
675
|
berkley
|
System.out.println("error requesting file lock from MetacatReplication." +
|
882 |
|
|
"handleGetLockRequest: " + e.getMessage());
|
883 |
568
|
berkley
|
e.printStackTrace(System.out);
|
884 |
561
|
berkley
|
}
|
885 |
|
|
}
|
886 |
2286
|
tao
|
|
887 |
561
|
berkley
|
/**
|
888 |
|
|
* Sends all of the xml_documents information encoded in xml to a requestor
|
889 |
583
|
berkley
|
* the format is:
|
890 |
|
|
* <!ELEMENT documentinfo (docid, docname, doctype, doctitle, user_owner,
|
891 |
1057
|
tao
|
* user_updated, home_server, public_access, rev)/>
|
892 |
583
|
berkley
|
* all of the subelements of document info are #PCDATA
|
893 |
561
|
berkley
|
*/
|
894 |
2286
|
tao
|
private void handleGetDocumentInfoRequest(PrintWriter out, Hashtable params,
|
895 |
561
|
berkley
|
HttpServletResponse response)
|
896 |
|
|
{
|
897 |
|
|
String docid = ((String[])(params.get("docid")))[0];
|
898 |
|
|
StringBuffer sb = new StringBuffer();
|
899 |
2286
|
tao
|
|
900 |
561
|
berkley
|
try
|
901 |
|
|
{
|
902 |
2286
|
tao
|
|
903 |
1217
|
tao
|
DocumentImpl doc = new DocumentImpl(docid);
|
904 |
561
|
berkley
|
sb.append("<documentinfo><docid>").append(docid);
|
905 |
|
|
sb.append("</docid><docname>").append(doc.getDocname());
|
906 |
|
|
sb.append("</docname><doctype>").append(doc.getDoctype());
|
907 |
692
|
bojilova
|
sb.append("</doctype>");
|
908 |
|
|
sb.append("<user_owner>").append(doc.getUserowner());
|
909 |
561
|
berkley
|
sb.append("</user_owner><user_updated>").append(doc.getUserupdated());
|
910 |
1057
|
tao
|
sb.append("</user_updated>");
|
911 |
2624
|
tao
|
sb.append("<date_created>");
|
912 |
|
|
sb.append(doc.getCreateDate());
|
913 |
|
|
sb.append("</date_created>");
|
914 |
|
|
sb.append("<date_updated>");
|
915 |
|
|
sb.append(doc.getUpdateDate());
|
916 |
|
|
sb.append("</date_updated>");
|
917 |
1057
|
tao
|
sb.append("<home_server>");
|
918 |
1061
|
tao
|
sb.append(doc.getDocHomeServer());
|
919 |
1057
|
tao
|
sb.append("</home_server>");
|
920 |
|
|
sb.append("<public_access>").append(doc.getPublicaccess());
|
921 |
583
|
berkley
|
sb.append("</public_access><rev>").append(doc.getRev());
|
922 |
|
|
sb.append("</rev></documentinfo>");
|
923 |
561
|
berkley
|
response.setContentType("text/xml");
|
924 |
|
|
out.println(sb.toString());
|
925 |
2286
|
tao
|
|
926 |
561
|
berkley
|
}
|
927 |
|
|
catch (Exception e)
|
928 |
|
|
{
|
929 |
675
|
berkley
|
System.out.println("error in " +
|
930 |
2286
|
tao
|
"metacatReplication.handlegetdocumentinforequest: " +
|
931 |
675
|
berkley
|
e.getMessage());
|
932 |
561
|
berkley
|
}
|
933 |
2286
|
tao
|
|
934 |
561
|
berkley
|
}
|
935 |
2286
|
tao
|
|
936 |
1020
|
tao
|
/**
|
937 |
|
|
* Sends a datafile to a remote host
|
938 |
|
|
*/
|
939 |
2286
|
tao
|
private void handleGetDataFileRequest(OutputStream outPut,
|
940 |
1020
|
tao
|
Hashtable params, HttpServletResponse response)
|
941 |
2286
|
tao
|
|
942 |
1020
|
tao
|
{
|
943 |
2286
|
tao
|
// File path for data file
|
944 |
1020
|
tao
|
String filepath = util.getOption("datafilepath");
|
945 |
1292
|
tao
|
// Request docid
|
946 |
1020
|
tao
|
String docId = ((String[])(params.get("docid")))[0];
|
947 |
1023
|
tao
|
//check if the doicd is null
|
948 |
|
|
if (docId==null)
|
949 |
|
|
{
|
950 |
2663
|
sgarg
|
logMetacat.error("Didn't specify docid for replication");
|
951 |
1023
|
tao
|
return;
|
952 |
|
|
}
|
953 |
2286
|
tao
|
|
954 |
1097
|
tao
|
//try to open a https stream to test if the request server's public key
|
955 |
|
|
//in the key store, this is security issue
|
956 |
|
|
try
|
957 |
|
|
{
|
958 |
|
|
String server = ((String[])params.get("server"))[0];
|
959 |
|
|
URL u = new URL("https://" + server + "?server="
|
960 |
|
|
+util.getLocalReplicationServerName()
|
961 |
|
|
+"&action=test");
|
962 |
|
|
String test = MetacatReplication.getURLContent(u);
|
963 |
|
|
//couldn't pass the test
|
964 |
|
|
if (test.indexOf("successfully")==-1)
|
965 |
|
|
{
|
966 |
|
|
//response.setContentType("text/xml");
|
967 |
|
|
//outPut.println("<error>Couldn't pass the trust test</error>");
|
968 |
2663
|
sgarg
|
logMetacat.error("Couldn't pass the trust test");
|
969 |
1097
|
tao
|
return;
|
970 |
|
|
}
|
971 |
|
|
}//try
|
972 |
|
|
catch (Exception ee)
|
973 |
|
|
{
|
974 |
|
|
return;
|
975 |
|
|
}//catch
|
976 |
2286
|
tao
|
|
977 |
|
|
if(!filepath.endsWith("/"))
|
978 |
1020
|
tao
|
{
|
979 |
|
|
filepath += "/";
|
980 |
|
|
}
|
981 |
1292
|
tao
|
// Get file aboslute file name
|
982 |
2286
|
tao
|
String filename = filepath + docId;
|
983 |
|
|
|
984 |
1292
|
tao
|
//MIME type
|
985 |
|
|
String contentType = null;
|
986 |
2286
|
tao
|
if (filename.endsWith(".xml"))
|
987 |
1292
|
tao
|
{
|
988 |
|
|
contentType="text/xml";
|
989 |
2286
|
tao
|
}
|
990 |
|
|
else if (filename.endsWith(".css"))
|
991 |
1292
|
tao
|
{
|
992 |
|
|
contentType="text/css";
|
993 |
2286
|
tao
|
}
|
994 |
|
|
else if (filename.endsWith(".dtd"))
|
995 |
1292
|
tao
|
{
|
996 |
|
|
contentType="text/plain";
|
997 |
2286
|
tao
|
}
|
998 |
|
|
else if (filename.endsWith(".xsd"))
|
999 |
1292
|
tao
|
{
|
1000 |
|
|
contentType="text/xml";
|
1001 |
2286
|
tao
|
}
|
1002 |
|
|
else if (filename.endsWith("/"))
|
1003 |
1292
|
tao
|
{
|
1004 |
|
|
contentType="text/html";
|
1005 |
2286
|
tao
|
}
|
1006 |
|
|
else
|
1007 |
1292
|
tao
|
{
|
1008 |
|
|
File f = new File(filename);
|
1009 |
2286
|
tao
|
if ( f.isDirectory() )
|
1010 |
1292
|
tao
|
{
|
1011 |
|
|
contentType="text/html";
|
1012 |
2286
|
tao
|
}
|
1013 |
1292
|
tao
|
else
|
1014 |
|
|
{
|
1015 |
|
|
contentType="application/octet-stream";
|
1016 |
|
|
}
|
1017 |
|
|
}
|
1018 |
2286
|
tao
|
|
1019 |
1292
|
tao
|
// Set the mime type
|
1020 |
1020
|
tao
|
response.setContentType(contentType);
|
1021 |
2286
|
tao
|
|
1022 |
1292
|
tao
|
// Get the content of the file
|
1023 |
1020
|
tao
|
FileInputStream fin = null;
|
1024 |
2286
|
tao
|
try
|
1025 |
1020
|
tao
|
{
|
1026 |
1292
|
tao
|
// FileInputStream to metacat
|
1027 |
1020
|
tao
|
fin = new FileInputStream(filename);
|
1028 |
1292
|
tao
|
// 4K buffer
|
1029 |
|
|
byte[] buf = new byte[4 * 1024];
|
1030 |
|
|
// Read data from file input stream to byte array
|
1031 |
1020
|
tao
|
int b = fin.read(buf);
|
1032 |
1292
|
tao
|
// Write to outStream from byte array
|
1033 |
2286
|
tao
|
while (b != -1)
|
1034 |
1020
|
tao
|
{
|
1035 |
|
|
outPut.write(buf, 0, b);
|
1036 |
|
|
b = fin.read(buf);
|
1037 |
|
|
}
|
1038 |
1292
|
tao
|
// close file input stream
|
1039 |
1020
|
tao
|
fin.close();
|
1040 |
2286
|
tao
|
|
1041 |
1292
|
tao
|
}//try
|
1042 |
1020
|
tao
|
catch(Exception e)
|
1043 |
|
|
{
|
1044 |
|
|
System.out.println("error getting data file from MetacatReplication." +
|
1045 |
|
|
"handlGetDataFileRequest " + e.getMessage());
|
1046 |
|
|
e.printStackTrace(System.out);
|
1047 |
1292
|
tao
|
}//catch
|
1048 |
2286
|
tao
|
|
1049 |
1020
|
tao
|
}
|
1050 |
2286
|
tao
|
|
1051 |
|
|
|
1052 |
561
|
berkley
|
/**
|
1053 |
|
|
* Sends a document to a remote host
|
1054 |
|
|
*/
|
1055 |
2286
|
tao
|
private void handleGetDocumentRequest(PrintWriter out, Hashtable params,
|
1056 |
561
|
berkley
|
HttpServletResponse response)
|
1057 |
534
|
berkley
|
{
|
1058 |
2286
|
tao
|
|
1059 |
534
|
berkley
|
try
|
1060 |
|
|
{
|
1061 |
1097
|
tao
|
//try to open a https stream to test if the request server's public key
|
1062 |
|
|
//in the key store, this is security issue
|
1063 |
|
|
String server = ((String[])params.get("server"))[0];
|
1064 |
|
|
URL u = new URL("https://" + server + "?server="
|
1065 |
|
|
+util.getLocalReplicationServerName()
|
1066 |
|
|
+"&action=test");
|
1067 |
|
|
String test = MetacatReplication.getURLContent(u);
|
1068 |
|
|
//couldn't pass the test
|
1069 |
|
|
if (test.indexOf("successfully")==-1)
|
1070 |
|
|
{
|
1071 |
|
|
response.setContentType("text/xml");
|
1072 |
2717
|
tao
|
out.println("<error>Couldn't pass the trust test "+test+" </error>");
|
1073 |
1292
|
tao
|
out.close();
|
1074 |
1097
|
tao
|
return;
|
1075 |
|
|
}
|
1076 |
2286
|
tao
|
|
1077 |
536
|
berkley
|
String docid = ((String[])(params.get("docid")))[0];
|
1078 |
2286
|
tao
|
|
1079 |
1217
|
tao
|
DocumentImpl di = new DocumentImpl(docid);
|
1080 |
534
|
berkley
|
response.setContentType("text/xml");
|
1081 |
1767
|
tao
|
out.print(di.toString(null, null, true));
|
1082 |
2286
|
tao
|
|
1083 |
584
|
berkley
|
MetacatReplication.replLog("document " + docid + " sent");
|
1084 |
2286
|
tao
|
|
1085 |
534
|
berkley
|
}
|
1086 |
|
|
catch(Exception e)
|
1087 |
|
|
{
|
1088 |
2663
|
sgarg
|
logMetacat.error("error getting document from MetacatReplication."
|
1089 |
|
|
+"handlGetDocumentRequest " + e.getMessage());
|
1090 |
1099
|
tao
|
//e.printStackTrace(System.out);
|
1091 |
|
|
response.setContentType("text/xml");
|
1092 |
1292
|
tao
|
out.println("<error>"+e.getMessage()+"</error>");
|
1093 |
534
|
berkley
|
}
|
1094 |
2286
|
tao
|
|
1095 |
534
|
berkley
|
}
|
1096 |
2286
|
tao
|
|
1097 |
573
|
berkley
|
/**
|
1098 |
583
|
berkley
|
* Sends a list of all of the documents on this sever along with their
|
1099 |
2286
|
tao
|
* revision numbers.
|
1100 |
583
|
berkley
|
* The format is:
|
1101 |
|
|
* <!ELEMENT replication (server, updates)>
|
1102 |
|
|
* <!ELEMENT server (#PCDATA)>
|
1103 |
2597
|
tao
|
* <!ELEMENT updates ((updatedDocument | deleteDocument | revisionDocument)*)>
|
1104 |
1020
|
tao
|
* <!ELEMENT updatedDocument (docid, rev, datafile*)>
|
1105 |
1035
|
tao
|
* <!ELEMENT deletedDocument (docid, rev)>
|
1106 |
2597
|
tao
|
* <!ELEMENT revisionDocument (docid, rev, datafile*)>
|
1107 |
583
|
berkley
|
* <!ELEMENT docid (#PCDATA)>
|
1108 |
|
|
* <!ELEMENT rev (#PCDATA)>
|
1109 |
1020
|
tao
|
* <!ELEMENT datafile (#PCDATA)>
|
1110 |
583
|
berkley
|
* note that the rev in deletedDocument is always empty. I just left
|
1111 |
|
|
* it in there to make the parser implementation easier.
|
1112 |
573
|
berkley
|
*/
|
1113 |
2286
|
tao
|
private void handleUpdateRequest(PrintWriter out, Hashtable params,
|
1114 |
577
|
berkley
|
HttpServletResponse response)
|
1115 |
|
|
{
|
1116 |
2286
|
tao
|
// Checked out DBConnection
|
1117 |
1217
|
tao
|
DBConnection dbConn = null;
|
1118 |
1292
|
tao
|
// DBConenction serial number when checked it out
|
1119 |
1217
|
tao
|
int serialNumber = -1;
|
1120 |
|
|
PreparedStatement pstmt = null;
|
1121 |
1292
|
tao
|
// Server list to store server info of xml_replication table
|
1122 |
|
|
ReplicationServerList serverList = null;
|
1123 |
2286
|
tao
|
|
1124 |
577
|
berkley
|
try
|
1125 |
|
|
{
|
1126 |
1292
|
tao
|
// Check out a DBConnection from pool
|
1127 |
|
|
dbConn=DBConnectionPool.
|
1128 |
|
|
getDBConnection("MetacatReplication.handleUpdateRequest");
|
1129 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1130 |
|
|
// Create a server list from xml_replication table
|
1131 |
|
|
serverList = new ReplicationServerList();
|
1132 |
2286
|
tao
|
|
1133 |
1292
|
tao
|
// Get remote server name from param
|
1134 |
|
|
String server = ((String[])params.get("server"))[0];
|
1135 |
|
|
// If no servr name in param, return a error
|
1136 |
|
|
if ( server == null || server.equals(""))
|
1137 |
|
|
{
|
1138 |
|
|
response.setContentType("text/xml");
|
1139 |
|
|
out.println("<error>Request didn't specify server name</error>");
|
1140 |
|
|
out.close();
|
1141 |
|
|
return;
|
1142 |
|
|
}//if
|
1143 |
2286
|
tao
|
|
1144 |
1101
|
tao
|
//try to open a https stream to test if the request server's public key
|
1145 |
|
|
//in the key store, this is security issue
|
1146 |
|
|
URL u = new URL("https://" + server + "?server="
|
1147 |
|
|
+util.getLocalReplicationServerName()
|
1148 |
|
|
+"&action=test");
|
1149 |
|
|
String test = MetacatReplication.getURLContent(u);
|
1150 |
|
|
//couldn't pass the test
|
1151 |
|
|
if (test.indexOf("successfully")==-1)
|
1152 |
|
|
{
|
1153 |
|
|
response.setContentType("text/xml");
|
1154 |
|
|
out.println("<error>Couldn't pass the trust test</error>");
|
1155 |
1292
|
tao
|
out.close();
|
1156 |
1101
|
tao
|
return;
|
1157 |
|
|
}
|
1158 |
2286
|
tao
|
|
1159 |
|
|
|
1160 |
1292
|
tao
|
// Check if local host configure to replicate xml documents to remote
|
1161 |
|
|
// server. If not send back a error message
|
1162 |
|
|
if (!serverList.getReplicationValue(server))
|
1163 |
|
|
{
|
1164 |
|
|
response.setContentType("text/xml");
|
1165 |
|
|
out.println
|
1166 |
|
|
("<error>Configuration not allow to replicate document to you</error>");
|
1167 |
|
|
out.close();
|
1168 |
|
|
return;
|
1169 |
|
|
}//if
|
1170 |
2286
|
tao
|
|
1171 |
1292
|
tao
|
// Store the sql command
|
1172 |
577
|
berkley
|
StringBuffer docsql = new StringBuffer();
|
1173 |
2597
|
tao
|
StringBuffer revisionSql = new StringBuffer();
|
1174 |
1292
|
tao
|
// Stroe the docid list
|
1175 |
577
|
berkley
|
StringBuffer doclist = new StringBuffer();
|
1176 |
1292
|
tao
|
// Store the deleted docid list
|
1177 |
|
|
StringBuffer delsql = new StringBuffer();
|
1178 |
|
|
// Store the data set file
|
1179 |
625
|
berkley
|
Vector packageFiles = new Vector();
|
1180 |
2286
|
tao
|
|
1181 |
1292
|
tao
|
// Append local server's name and replication servlet to doclist
|
1182 |
577
|
berkley
|
doclist.append("<?xml version=\"1.0\"?><replication>");
|
1183 |
2581
|
tao
|
doclist.append("<server>").append(util.getLocalReplicationServerName());
|
1184 |
|
|
//doclist.append(util.getOption("replicationpath"));
|
1185 |
577
|
berkley
|
doclist.append("</server><updates>");
|
1186 |
2286
|
tao
|
|
1187 |
1292
|
tao
|
// Get correct docid that reside on this server according the requesting
|
1188 |
|
|
// server's replicate and data replicate value in xml_replication table
|
1189 |
2724
|
tao
|
docsql.append(dbAdapter.getReplicationDocumentListSQL());
|
1190 |
|
|
//docsql.append("select docid, rev, doctype from xml_documents where (docid not in (select a.docid from xml_documents a, xml_revisions b where a.docid=b.docid and a.rev<=b.rev)) ");
|
1191 |
2597
|
tao
|
revisionSql.append("select docid, rev, doctype from xml_revisions ");
|
1192 |
1292
|
tao
|
// If the localhost is not a hub to the remote server, only replicate
|
1193 |
|
|
// the docid' which home server is local host (server_location =1)
|
1194 |
|
|
if (!serverList.getHubValue(server))
|
1195 |
1042
|
tao
|
{
|
1196 |
2724
|
tao
|
String serverLocationDoc = " and a.server_location = 1";
|
1197 |
2719
|
tao
|
String serverLocationRev = "where server_location = 1";
|
1198 |
|
|
docsql.append(serverLocationDoc);
|
1199 |
|
|
revisionSql.append(serverLocationRev);
|
1200 |
1042
|
tao
|
}
|
1201 |
2663
|
sgarg
|
logMetacat.info("Doc sql: "+docsql.toString());
|
1202 |
2286
|
tao
|
|
1203 |
1292
|
tao
|
// Get any deleted documents
|
1204 |
577
|
berkley
|
delsql.append("select distinct docid from ");
|
1205 |
|
|
delsql.append("xml_revisions where docid not in (select docid from ");
|
1206 |
1042
|
tao
|
delsql.append("xml_documents) ");
|
1207 |
1292
|
tao
|
// If the localhost is not a hub to the remote server, only replicate
|
1208 |
|
|
// the docid' which home server is local host (server_location =1)
|
1209 |
|
|
if (!serverList.getHubValue(server))
|
1210 |
1042
|
tao
|
{
|
1211 |
|
|
delsql.append("and server_location = 1");
|
1212 |
|
|
}
|
1213 |
2663
|
sgarg
|
logMetacat.info("Deleted sql: "+delsql.toString());
|
1214 |
2286
|
tao
|
|
1215 |
|
|
|
1216 |
|
|
|
1217 |
1292
|
tao
|
// Get docid list of local host
|
1218 |
1217
|
tao
|
pstmt = dbConn.prepareStatement(docsql.toString());
|
1219 |
577
|
berkley
|
pstmt.execute();
|
1220 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1221 |
|
|
boolean tablehasrows = rs.next();
|
1222 |
1035
|
tao
|
//If metacat configed to replicate data file
|
1223 |
1292
|
tao
|
//if ((util.getOption("replicationsenddata")).equals("on"))
|
1224 |
2597
|
tao
|
boolean replicateData = serverList.getDataReplicationValue(server);
|
1225 |
|
|
if (replicateData)
|
1226 |
577
|
berkley
|
{
|
1227 |
1020
|
tao
|
while(tablehasrows)
|
1228 |
|
|
{
|
1229 |
|
|
String recordDoctype = rs.getString(3);
|
1230 |
1035
|
tao
|
Vector packagedoctypes = MetaCatUtil.getOptionList(
|
1231 |
|
|
MetaCatUtil.getOption("packagedoctype"));
|
1232 |
1292
|
tao
|
//if this is a package file, put it at the end
|
1233 |
|
|
//because if a package file is read before all of the files it
|
1234 |
|
|
//refers to are loaded then there is an error
|
1235 |
1768
|
tao
|
if(recordDoctype != null && !packagedoctypes.contains(recordDoctype))
|
1236 |
2286
|
tao
|
{
|
1237 |
1292
|
tao
|
//If this is not data file
|
1238 |
1035
|
tao
|
if (!recordDoctype.equals("BIN"))
|
1239 |
|
|
{
|
1240 |
|
|
//for non-data file document
|
1241 |
|
|
doclist.append("<updatedDocument>");
|
1242 |
|
|
doclist.append("<docid>").append(rs.getString(1));
|
1243 |
|
|
doclist.append("</docid><rev>").append(rs.getInt(2));
|
1244 |
|
|
doclist.append("</rev>");
|
1245 |
|
|
doclist.append("</updatedDocument>");
|
1246 |
1292
|
tao
|
}//if
|
1247 |
1035
|
tao
|
else
|
1248 |
|
|
{
|
1249 |
|
|
//for data file document, in datafile attributes
|
1250 |
|
|
//we put "datafile" value there
|
1251 |
|
|
doclist.append("<updatedDocument>");
|
1252 |
|
|
doclist.append("<docid>").append(rs.getString(1));
|
1253 |
|
|
doclist.append("</docid><rev>").append(rs.getInt(2));
|
1254 |
|
|
doclist.append("</rev>");
|
1255 |
|
|
doclist.append("<datafile>");
|
1256 |
|
|
doclist.append(MetaCatUtil.getOption("datafileflag"));
|
1257 |
|
|
doclist.append("</datafile>");
|
1258 |
|
|
doclist.append("</updatedDocument>");
|
1259 |
2286
|
tao
|
}//else
|
1260 |
1292
|
tao
|
}//if packagedoctpes
|
1261 |
1035
|
tao
|
else
|
1262 |
|
|
{ //the package files are saved to be put into the xml later.
|
1263 |
|
|
Vector v = new Vector();
|
1264 |
|
|
v.add(new String(rs.getString(1)));
|
1265 |
|
|
v.add(new Integer(rs.getInt(2)));
|
1266 |
|
|
packageFiles.add(new Vector(v));
|
1267 |
1292
|
tao
|
}//esle
|
1268 |
1035
|
tao
|
tablehasrows = rs.next();
|
1269 |
|
|
}//while
|
1270 |
|
|
}//if
|
1271 |
|
|
else //metacat was configured not to send data file
|
1272 |
|
|
{
|
1273 |
|
|
while(tablehasrows)
|
1274 |
|
|
{
|
1275 |
|
|
String recordDoctype = rs.getString(3);
|
1276 |
2286
|
tao
|
if(!recordDoctype.equals("BIN"))
|
1277 |
1020
|
tao
|
{ //don't replicate data files
|
1278 |
|
|
Vector packagedoctypes = MetaCatUtil.getOptionList(
|
1279 |
887
|
berkley
|
MetaCatUtil.getOption("packagedoctype"));
|
1280 |
1768
|
tao
|
if(recordDoctype != null && !packagedoctypes.contains(recordDoctype))
|
1281 |
1020
|
tao
|
{ //if this is a package file, put it at the end
|
1282 |
|
|
//because if a package file is read before all of the files it
|
1283 |
|
|
//refers to are loaded then there is an error
|
1284 |
|
|
doclist.append("<updatedDocument>");
|
1285 |
|
|
doclist.append("<docid>").append(rs.getString(1));
|
1286 |
|
|
doclist.append("</docid><rev>").append(rs.getInt(2));
|
1287 |
|
|
doclist.append("</rev>");
|
1288 |
|
|
doclist.append("</updatedDocument>");
|
1289 |
|
|
}
|
1290 |
|
|
else
|
1291 |
|
|
{ //the package files are saved to be put into the xml later.
|
1292 |
|
|
Vector v = new Vector();
|
1293 |
|
|
v.add(new String(rs.getString(1)));
|
1294 |
|
|
v.add(new Integer(rs.getInt(2)));
|
1295 |
|
|
packageFiles.add(new Vector(v));
|
1296 |
|
|
}
|
1297 |
|
|
}//if
|
1298 |
|
|
tablehasrows = rs.next();
|
1299 |
|
|
}//while
|
1300 |
1035
|
tao
|
}//else
|
1301 |
2286
|
tao
|
|
1302 |
1217
|
tao
|
pstmt = dbConn.prepareStatement(delsql.toString());
|
1303 |
|
|
//usage count should increas 1
|
1304 |
|
|
dbConn.increaseUsageCount(1);
|
1305 |
2286
|
tao
|
|
1306 |
577
|
berkley
|
pstmt.execute();
|
1307 |
|
|
rs = pstmt.getResultSet();
|
1308 |
|
|
tablehasrows = rs.next();
|
1309 |
|
|
while(tablehasrows)
|
1310 |
|
|
{ //handle the deleted documents
|
1311 |
|
|
doclist.append("<deletedDocument><docid>").append(rs.getString(1));
|
1312 |
|
|
doclist.append("</docid><rev></rev></deletedDocument>");
|
1313 |
583
|
berkley
|
//note that rev is always empty for deleted docs
|
1314 |
577
|
berkley
|
tablehasrows = rs.next();
|
1315 |
|
|
}
|
1316 |
2286
|
tao
|
|
1317 |
625
|
berkley
|
//now we can put the package files into the xml results
|
1318 |
|
|
for(int i=0; i<packageFiles.size(); i++)
|
1319 |
|
|
{
|
1320 |
|
|
Vector v = (Vector)packageFiles.elementAt(i);
|
1321 |
|
|
doclist.append("<updatedDocument>");
|
1322 |
|
|
doclist.append("<docid>").append((String)v.elementAt(0));
|
1323 |
|
|
doclist.append("</docid><rev>");
|
1324 |
|
|
doclist.append(((Integer)v.elementAt(1)).intValue());
|
1325 |
|
|
doclist.append("</rev>");
|
1326 |
|
|
doclist.append("</updatedDocument>");
|
1327 |
|
|
}
|
1328 |
2597
|
tao
|
// add revision doc list
|
1329 |
|
|
doclist.append(prepareRevisionDoc(dbConn,revisionSql.toString(),replicateData));
|
1330 |
|
|
|
1331 |
577
|
berkley
|
doclist.append("</updates></replication>");
|
1332 |
2663
|
sgarg
|
logMetacat.info("doclist: " + doclist.toString());
|
1333 |
667
|
berkley
|
pstmt.close();
|
1334 |
1217
|
tao
|
//conn.close();
|
1335 |
577
|
berkley
|
response.setContentType("text/xml");
|
1336 |
|
|
out.println(doclist.toString());
|
1337 |
2286
|
tao
|
|
1338 |
577
|
berkley
|
}
|
1339 |
|
|
catch(Exception e)
|
1340 |
|
|
{
|
1341 |
2663
|
sgarg
|
logMetacat.error("error in MetacatReplication." +
|
1342 |
|
|
"handleupdaterequest: " + e.getMessage());
|
1343 |
1101
|
tao
|
//e.printStackTrace(System.out);
|
1344 |
|
|
response.setContentType("text/xml");
|
1345 |
1292
|
tao
|
out.println("<error>"+e.getMessage()+"</error>");
|
1346 |
577
|
berkley
|
}
|
1347 |
1217
|
tao
|
finally
|
1348 |
|
|
{
|
1349 |
|
|
try
|
1350 |
|
|
{
|
1351 |
|
|
pstmt.close();
|
1352 |
|
|
}//try
|
1353 |
|
|
catch (SQLException ee)
|
1354 |
|
|
{
|
1355 |
2663
|
sgarg
|
logMetacat.error("Error in MetacatReplication." +
|
1356 |
|
|
"handleUpdaterequest to close pstmt: "+ee.getMessage());
|
1357 |
1217
|
tao
|
}//catch
|
1358 |
|
|
finally
|
1359 |
|
|
{
|
1360 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1361 |
|
|
}//finally
|
1362 |
|
|
}//finally
|
1363 |
2286
|
tao
|
|
1364 |
1292
|
tao
|
}//handlUpdateRequest
|
1365 |
2597
|
tao
|
|
1366 |
|
|
/*
|
1367 |
|
|
* This method will get the xml string for document in xml_revision
|
1368 |
|
|
* The schema look like <!ELEMENT revisionDocument (docid, rev, datafile*)>
|
1369 |
|
|
*/
|
1370 |
|
|
private String prepareRevisionDoc(DBConnection dbConn, String revSql,
|
1371 |
|
|
boolean replicateData) throws Exception
|
1372 |
|
|
{
|
1373 |
2663
|
sgarg
|
logMetacat.warn("The revision document sql is "+ revSql);
|
1374 |
2597
|
tao
|
StringBuffer revDocList = new StringBuffer();
|
1375 |
2619
|
tao
|
PreparedStatement pstmt = dbConn.prepareStatement(revSql);
|
1376 |
2597
|
tao
|
//usage count should increas 1
|
1377 |
|
|
dbConn.increaseUsageCount(1);
|
1378 |
2286
|
tao
|
|
1379 |
2597
|
tao
|
pstmt.execute();
|
1380 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1381 |
|
|
boolean tablehasrows = rs.next();
|
1382 |
|
|
while(tablehasrows)
|
1383 |
|
|
{
|
1384 |
|
|
String recordDoctype = rs.getString(3);
|
1385 |
|
|
|
1386 |
|
|
//If this is data file and it isn't configured to replicate data
|
1387 |
|
|
if (recordDoctype.equals("BIN") && !replicateData)
|
1388 |
|
|
{
|
1389 |
|
|
// do nothing
|
1390 |
|
|
continue;
|
1391 |
|
|
}
|
1392 |
|
|
else
|
1393 |
|
|
{
|
1394 |
|
|
|
1395 |
|
|
revDocList.append("<revisionDocument>");
|
1396 |
|
|
revDocList.append("<docid>").append(rs.getString(1));
|
1397 |
|
|
revDocList.append("</docid><rev>").append(rs.getInt(2));
|
1398 |
|
|
revDocList.append("</rev>");
|
1399 |
|
|
// data file
|
1400 |
|
|
if (recordDoctype.equals("BIN"))
|
1401 |
|
|
{
|
1402 |
|
|
revDocList.append("<datafile>");
|
1403 |
|
|
revDocList.append(MetaCatUtil.getOption("datafileflag"));
|
1404 |
|
|
revDocList.append("</datafile>");
|
1405 |
|
|
}
|
1406 |
2619
|
tao
|
revDocList.append("</revisionDocument>");
|
1407 |
2597
|
tao
|
|
1408 |
|
|
}//else
|
1409 |
2619
|
tao
|
tablehasrows = rs.next();
|
1410 |
2597
|
tao
|
}
|
1411 |
2619
|
tao
|
//System.out.println("The revision list is"+ revDocList.toString());
|
1412 |
2597
|
tao
|
return revDocList.toString();
|
1413 |
|
|
}
|
1414 |
|
|
|
1415 |
577
|
berkley
|
/**
|
1416 |
590
|
berkley
|
* Returns the xml_catalog table encoded in xml
|
1417 |
|
|
*/
|
1418 |
|
|
public static String getCatalogXML()
|
1419 |
|
|
{
|
1420 |
|
|
return handleGetCatalogRequest(null, null, null, false);
|
1421 |
|
|
}
|
1422 |
2286
|
tao
|
|
1423 |
590
|
berkley
|
/**
|
1424 |
|
|
* Sends the contents of the xml_catalog table encoded in xml
|
1425 |
|
|
* The xml format is:
|
1426 |
|
|
* <!ELEMENT xml_catalog (row*)>
|
1427 |
|
|
* <!ELEMENT row (entry_type, source_doctype, target_doctype, public_id,
|
1428 |
|
|
* system_id)>
|
1429 |
|
|
* All of the sub elements of row are #PCDATA
|
1430 |
2286
|
tao
|
|
1431 |
590
|
berkley
|
* If printFlag == false then do not print to out.
|
1432 |
|
|
*/
|
1433 |
2286
|
tao
|
private static String handleGetCatalogRequest(PrintWriter out,
|
1434 |
590
|
berkley
|
Hashtable params,
|
1435 |
|
|
HttpServletResponse response,
|
1436 |
|
|
boolean printFlag)
|
1437 |
|
|
{
|
1438 |
1217
|
tao
|
DBConnection dbConn = null;
|
1439 |
|
|
int serialNumber = -1;
|
1440 |
667
|
berkley
|
PreparedStatement pstmt = null;
|
1441 |
590
|
berkley
|
try
|
1442 |
2286
|
tao
|
{
|
1443 |
1217
|
tao
|
/*conn = MetacatReplication.getDBConnection("MetacatReplication." +
|
1444 |
|
|
"handleGetCatalogRequest");*/
|
1445 |
|
|
dbConn=DBConnectionPool.
|
1446 |
|
|
getDBConnection("MetacatReplication.handleGetCatalogRequest");
|
1447 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1448 |
|
|
pstmt = dbConn.prepareStatement("select entry_type, " +
|
1449 |
590
|
berkley
|
"source_doctype, target_doctype, public_id, " +
|
1450 |
|
|
"system_id from xml_catalog");
|
1451 |
|
|
pstmt.execute();
|
1452 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1453 |
|
|
boolean tablehasrows = rs.next();
|
1454 |
|
|
StringBuffer sb = new StringBuffer();
|
1455 |
|
|
sb.append("<?xml version=\"1.0\"?><xml_catalog>");
|
1456 |
|
|
while(tablehasrows)
|
1457 |
|
|
{
|
1458 |
|
|
sb.append("<row><entry_type>").append(rs.getString(1));
|
1459 |
|
|
sb.append("</entry_type><source_doctype>").append(rs.getString(2));
|
1460 |
|
|
sb.append("</source_doctype><target_doctype>").append(rs.getString(3));
|
1461 |
|
|
sb.append("</target_doctype><public_id>").append(rs.getString(4));
|
1462 |
|
|
sb.append("</public_id><system_id>").append(rs.getString(5));
|
1463 |
|
|
sb.append("</system_id></row>");
|
1464 |
2286
|
tao
|
|
1465 |
590
|
berkley
|
tablehasrows = rs.next();
|
1466 |
|
|
}
|
1467 |
|
|
sb.append("</xml_catalog>");
|
1468 |
1217
|
tao
|
//conn.close();
|
1469 |
590
|
berkley
|
if(printFlag)
|
1470 |
|
|
{
|
1471 |
|
|
response.setContentType("text/xml");
|
1472 |
|
|
out.println(sb.toString());
|
1473 |
|
|
}
|
1474 |
667
|
berkley
|
pstmt.close();
|
1475 |
590
|
berkley
|
return sb.toString();
|
1476 |
|
|
}
|
1477 |
|
|
catch(Exception e)
|
1478 |
|
|
{
|
1479 |
2286
|
tao
|
|
1480 |
2663
|
sgarg
|
logMetacat.error("error in MetacatReplication.handleGetCatalogRequest:"+
|
1481 |
|
|
e.getMessage());
|
1482 |
590
|
berkley
|
e.printStackTrace(System.out);
|
1483 |
1292
|
tao
|
if(printFlag)
|
1484 |
|
|
{
|
1485 |
|
|
out.println("<error>"+e.getMessage()+"</error>");
|
1486 |
|
|
}
|
1487 |
590
|
berkley
|
}
|
1488 |
1217
|
tao
|
finally
|
1489 |
|
|
{
|
1490 |
|
|
try
|
1491 |
|
|
{
|
1492 |
|
|
pstmt.close();
|
1493 |
|
|
}//try
|
1494 |
|
|
catch (SQLException ee)
|
1495 |
|
|
{
|
1496 |
2663
|
sgarg
|
logMetacat.error("Error in MetacatReplication.handleGetCatalogRequest: "
|
1497 |
|
|
+ee.getMessage());
|
1498 |
1217
|
tao
|
}//catch
|
1499 |
|
|
finally
|
1500 |
|
|
{
|
1501 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1502 |
|
|
}//finally
|
1503 |
|
|
}//finally
|
1504 |
2286
|
tao
|
|
1505 |
590
|
berkley
|
return null;
|
1506 |
|
|
}
|
1507 |
2286
|
tao
|
|
1508 |
590
|
berkley
|
/**
|
1509 |
568
|
berkley
|
* Sends the current system date to the remote server. Using this action
|
1510 |
2286
|
tao
|
* for replication gets rid of any problems with syncronizing clocks
|
1511 |
568
|
berkley
|
* because a time specific to a document is always kept on its home server.
|
1512 |
|
|
*/
|
1513 |
2286
|
tao
|
private void handleGetTimeRequest(PrintWriter out, Hashtable params,
|
1514 |
568
|
berkley
|
HttpServletResponse response)
|
1515 |
|
|
{
|
1516 |
1752
|
tao
|
SimpleDateFormat formatter = new SimpleDateFormat ("MM/dd/yy HH:mm:ss");
|
1517 |
568
|
berkley
|
java.util.Date localtime = new java.util.Date();
|
1518 |
|
|
String dateString = formatter.format(localtime);
|
1519 |
|
|
response.setContentType("text/xml");
|
1520 |
2286
|
tao
|
|
1521 |
568
|
berkley
|
out.println("<timestamp>" + dateString + "</timestamp>");
|
1522 |
|
|
}
|
1523 |
2286
|
tao
|
|
1524 |
568
|
berkley
|
/**
|
1525 |
2286
|
tao
|
* this method handles the timeout for a file lock. when a lock is
|
1526 |
583
|
berkley
|
* granted it is granted for 30 seconds. When this thread runs out
|
1527 |
|
|
* it deletes the docid from the queue, thus eliminating the lock.
|
1528 |
561
|
berkley
|
*/
|
1529 |
|
|
public void run()
|
1530 |
|
|
{
|
1531 |
|
|
try
|
1532 |
|
|
{
|
1533 |
2663
|
sgarg
|
logMetacat.info("thread started for docid: " +
|
1534 |
|
|
(String)fileLocks.elementAt(0));
|
1535 |
2286
|
tao
|
|
1536 |
561
|
berkley
|
Thread.sleep(30000); //the lock will expire in 30 seconds
|
1537 |
2663
|
sgarg
|
logMetacat.info("thread for docid: " +
|
1538 |
2286
|
tao
|
(String)fileLocks.elementAt(fileLocks.size() - 1) +
|
1539 |
2663
|
sgarg
|
" exiting.");
|
1540 |
2286
|
tao
|
|
1541 |
561
|
berkley
|
fileLocks.remove(fileLocks.size() - 1);
|
1542 |
568
|
berkley
|
//fileLocks is treated as a FIFO queue. If there are more than one lock
|
1543 |
561
|
berkley
|
//in the vector, the first one inserted will be removed.
|
1544 |
|
|
}
|
1545 |
|
|
catch(Exception e)
|
1546 |
|
|
{
|
1547 |
2663
|
sgarg
|
logMetacat.error("error in file lock thread from " +
|
1548 |
|
|
"MetacatReplication.run: " + e.getMessage());
|
1549 |
561
|
berkley
|
}
|
1550 |
|
|
}
|
1551 |
2286
|
tao
|
|
1552 |
561
|
berkley
|
/**
|
1553 |
|
|
* Returns the name of a server given a serverCode
|
1554 |
|
|
* @param serverCode the serverid of the server
|
1555 |
|
|
* @return the servername or null if the specified serverCode does not
|
1556 |
|
|
* exist.
|
1557 |
|
|
*/
|
1558 |
1292
|
tao
|
public static String getServerNameForServerCode(int serverCode)
|
1559 |
561
|
berkley
|
{
|
1560 |
569
|
berkley
|
//System.out.println("serverid: " + serverCode);
|
1561 |
1217
|
tao
|
DBConnection dbConn = null;
|
1562 |
|
|
int serialNumber = -1;
|
1563 |
|
|
PreparedStatement pstmt = null;
|
1564 |
561
|
berkley
|
try
|
1565 |
|
|
{
|
1566 |
1217
|
tao
|
dbConn=DBConnectionPool.
|
1567 |
|
|
getDBConnection("MetacatReplication.getServer");
|
1568 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1569 |
569
|
berkley
|
String sql = new String("select server from " +
|
1570 |
2286
|
tao
|
"xml_replication where serverid = " +
|
1571 |
561
|
berkley
|
serverCode);
|
1572 |
1217
|
tao
|
pstmt = dbConn.prepareStatement(sql);
|
1573 |
569
|
berkley
|
//System.out.println("getserver sql: " + sql);
|
1574 |
561
|
berkley
|
pstmt.execute();
|
1575 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1576 |
|
|
boolean tablehasrows = rs.next();
|
1577 |
|
|
if(tablehasrows)
|
1578 |
|
|
{
|
1579 |
569
|
berkley
|
//System.out.println("server: " + rs.getString(1));
|
1580 |
561
|
berkley
|
return rs.getString(1);
|
1581 |
|
|
}
|
1582 |
2286
|
tao
|
|
1583 |
1217
|
tao
|
//conn.close();
|
1584 |
561
|
berkley
|
}
|
1585 |
|
|
catch(Exception e)
|
1586 |
|
|
{
|
1587 |
2286
|
tao
|
System.out.println("Error in MetacatReplication.getServer: " +
|
1588 |
561
|
berkley
|
e.getMessage());
|
1589 |
|
|
}
|
1590 |
1217
|
tao
|
finally
|
1591 |
|
|
{
|
1592 |
|
|
try
|
1593 |
|
|
{
|
1594 |
|
|
pstmt.close();
|
1595 |
|
|
}//try
|
1596 |
|
|
catch (SQLException ee)
|
1597 |
|
|
{
|
1598 |
2663
|
sgarg
|
logMetacat.error("Error in MetacactReplication.getserver: "+
|
1599 |
|
|
ee.getMessage());
|
1600 |
1217
|
tao
|
}//catch
|
1601 |
|
|
finally
|
1602 |
|
|
{
|
1603 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1604 |
|
|
}//fianlly
|
1605 |
|
|
}//finally
|
1606 |
2286
|
tao
|
|
1607 |
|
|
|
1608 |
|
|
|
1609 |
561
|
berkley
|
return null;
|
1610 |
|
|
//return null if the server does not exist
|
1611 |
|
|
}
|
1612 |
2286
|
tao
|
|
1613 |
569
|
berkley
|
/**
|
1614 |
|
|
* Returns a server code given a server name
|
1615 |
|
|
* @param server the name of the server
|
1616 |
|
|
* @return integer > 0 representing the code of the server, 0 if the server
|
1617 |
|
|
* does not exist.
|
1618 |
|
|
*/
|
1619 |
1292
|
tao
|
public static int getServerCodeForServerName(String server) throws Exception
|
1620 |
569
|
berkley
|
{
|
1621 |
1217
|
tao
|
DBConnection dbConn = null;
|
1622 |
|
|
int serialNumber = -1;
|
1623 |
667
|
berkley
|
PreparedStatement pstmt = null;
|
1624 |
837
|
bojilova
|
int serverCode = 0;
|
1625 |
|
|
|
1626 |
|
|
try {
|
1627 |
|
|
|
1628 |
1217
|
tao
|
//conn = util.openDBConnection();
|
1629 |
|
|
dbConn=DBConnectionPool.
|
1630 |
|
|
getDBConnection("MetacatReplication.getServerCode");
|
1631 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1632 |
|
|
pstmt = dbConn.prepareStatement("SELECT serverid FROM xml_replication " +
|
1633 |
837
|
bojilova
|
"WHERE server LIKE '" + server + "'");
|
1634 |
569
|
berkley
|
pstmt.execute();
|
1635 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1636 |
|
|
boolean tablehasrows = rs.next();
|
1637 |
2286
|
tao
|
if ( tablehasrows ) {
|
1638 |
837
|
bojilova
|
serverCode = rs.getInt(1);
|
1639 |
667
|
berkley
|
pstmt.close();
|
1640 |
1217
|
tao
|
//conn.close();
|
1641 |
837
|
bojilova
|
return serverCode;
|
1642 |
569
|
berkley
|
}
|
1643 |
2286
|
tao
|
|
1644 |
837
|
bojilova
|
} catch(Exception e) {
|
1645 |
|
|
throw e;
|
1646 |
|
|
|
1647 |
|
|
} finally {
|
1648 |
2286
|
tao
|
try
|
1649 |
1217
|
tao
|
{
|
1650 |
667
|
berkley
|
pstmt.close();
|
1651 |
1217
|
tao
|
//conn.close();
|
1652 |
|
|
}//try
|
1653 |
2286
|
tao
|
catch(Exception ee)
|
1654 |
1217
|
tao
|
{
|
1655 |
2663
|
sgarg
|
logMetacat.error("Error in MetacatReplicatio.getServerCode: "
|
1656 |
|
|
+ee.getMessage());
|
1657 |
2286
|
tao
|
|
1658 |
1217
|
tao
|
}//catch
|
1659 |
|
|
finally
|
1660 |
|
|
{
|
1661 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1662 |
|
|
}//finally
|
1663 |
|
|
}//finally
|
1664 |
2286
|
tao
|
|
1665 |
837
|
bojilova
|
return serverCode;
|
1666 |
569
|
berkley
|
}
|
1667 |
2286
|
tao
|
|
1668 |
569
|
berkley
|
/**
|
1669 |
1292
|
tao
|
* Method to get a host server information for given docid
|
1670 |
|
|
* @param conn a connection to the database
|
1671 |
|
|
*/
|
1672 |
|
|
public static Hashtable getHomeServerInfoForDocId(String docId)
|
1673 |
|
|
{
|
1674 |
|
|
Hashtable sl = new Hashtable();
|
1675 |
|
|
DBConnection dbConn = null;
|
1676 |
|
|
int serialNumber = -1;
|
1677 |
|
|
//MetaCatUtil ut=new MetaCatUtil();
|
1678 |
|
|
docId=MetaCatUtil.getDocIdFromString(docId);
|
1679 |
|
|
PreparedStatement pstmt=null;
|
1680 |
|
|
int serverLocation;
|
1681 |
|
|
try
|
1682 |
|
|
{
|
1683 |
|
|
//get conection
|
1684 |
|
|
dbConn=DBConnectionPool.
|
1685 |
|
|
getDBConnection("ReplicationHandler.getHomeServer");
|
1686 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1687 |
|
|
//get a server location from xml_document table
|
1688 |
|
|
pstmt=dbConn.prepareStatement("select server_location from xml_documents "
|
1689 |
|
|
+"where docid = ?");
|
1690 |
|
|
pstmt.setString(1, docId);
|
1691 |
|
|
pstmt.execute();
|
1692 |
|
|
ResultSet serverName = pstmt.getResultSet();
|
1693 |
|
|
//get a server location
|
1694 |
|
|
if(serverName.next())
|
1695 |
|
|
{
|
1696 |
|
|
serverLocation=serverName.getInt(1);
|
1697 |
|
|
pstmt.close();
|
1698 |
|
|
}
|
1699 |
|
|
else
|
1700 |
|
|
{
|
1701 |
|
|
pstmt.close();
|
1702 |
|
|
//ut.returnConnection(conn);
|
1703 |
|
|
return null;
|
1704 |
|
|
}
|
1705 |
|
|
pstmt=dbConn.prepareStatement("select server, last_checked, replicate " +
|
1706 |
|
|
"from xml_replication where serverid = ?");
|
1707 |
|
|
//increase usage count
|
1708 |
|
|
dbConn.increaseUsageCount(1);
|
1709 |
|
|
pstmt.setInt(1, serverLocation);
|
1710 |
|
|
pstmt.execute();
|
1711 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1712 |
|
|
boolean tableHasRows = rs.next();
|
1713 |
|
|
if (tableHasRows)
|
1714 |
|
|
{
|
1715 |
2286
|
tao
|
|
1716 |
1292
|
tao
|
String server = rs.getString(1);
|
1717 |
|
|
String last_checked = rs.getString(2);
|
1718 |
|
|
if(!server.equals("localhost"))
|
1719 |
|
|
{
|
1720 |
|
|
sl.put(server, last_checked);
|
1721 |
|
|
}
|
1722 |
2286
|
tao
|
|
1723 |
1292
|
tao
|
}
|
1724 |
|
|
else
|
1725 |
|
|
{
|
1726 |
|
|
pstmt.close();
|
1727 |
|
|
//ut.returnConnection(conn);
|
1728 |
|
|
return null;
|
1729 |
|
|
}
|
1730 |
|
|
pstmt.close();
|
1731 |
|
|
}
|
1732 |
|
|
catch(Exception e)
|
1733 |
|
|
{
|
1734 |
|
|
System.out.println("error in replicationHandler.getHomeServer(): " +
|
1735 |
|
|
e.getMessage());
|
1736 |
|
|
}
|
1737 |
|
|
finally
|
1738 |
|
|
{
|
1739 |
|
|
try
|
1740 |
|
|
{
|
1741 |
|
|
pstmt.close();
|
1742 |
|
|
//ut.returnConnection(conn);
|
1743 |
|
|
}
|
1744 |
|
|
catch (Exception ee)
|
1745 |
|
|
{
|
1746 |
2663
|
sgarg
|
logMetacat.error("Eror irn rplicationHandler.getHomeServer() "+
|
1747 |
|
|
"to close pstmt: "+ee.getMessage());
|
1748 |
1292
|
tao
|
}
|
1749 |
|
|
finally
|
1750 |
|
|
{
|
1751 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1752 |
|
|
}
|
1753 |
2286
|
tao
|
|
1754 |
1292
|
tao
|
}//finally
|
1755 |
|
|
return sl;
|
1756 |
|
|
}
|
1757 |
2286
|
tao
|
|
1758 |
1292
|
tao
|
/**
|
1759 |
|
|
* Returns a home server location given a accnum
|
1760 |
|
|
* @param accNum , given accNum for a document
|
1761 |
2286
|
tao
|
*
|
1762 |
1292
|
tao
|
*/
|
1763 |
|
|
public static int getHomeServerCodeForDocId(String accNum) throws Exception
|
1764 |
|
|
{
|
1765 |
|
|
DBConnection dbConn = null;
|
1766 |
|
|
int serialNumber = -1;
|
1767 |
|
|
PreparedStatement pstmt = null;
|
1768 |
|
|
int serverCode = 1;
|
1769 |
|
|
//MetaCatUtil ut = new MetaCatUtil();
|
1770 |
|
|
String docId=MetaCatUtil.getDocIdFromString(accNum);
|
1771 |
|
|
|
1772 |
2286
|
tao
|
try
|
1773 |
1292
|
tao
|
{
|
1774 |
|
|
|
1775 |
|
|
// Get DBConnection
|
1776 |
|
|
dbConn=DBConnectionPool.
|
1777 |
|
|
getDBConnection("ReplicationHandler.getServerLocation");
|
1778 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1779 |
2286
|
tao
|
pstmt=dbConn.prepareStatement("SELECT server_location FROM xml_documents "
|
1780 |
1292
|
tao
|
+ "WHERE docid LIKE '" + docId + "'");
|
1781 |
|
|
pstmt.execute();
|
1782 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1783 |
|
|
boolean tablehasrows = rs.next();
|
1784 |
|
|
//If a document is find, return the server location for it
|
1785 |
2286
|
tao
|
if ( tablehasrows )
|
1786 |
|
|
{
|
1787 |
1292
|
tao
|
serverCode = rs.getInt(1);
|
1788 |
|
|
pstmt.close();
|
1789 |
|
|
//conn.close();
|
1790 |
|
|
return serverCode;
|
1791 |
|
|
}
|
1792 |
|
|
//if couldn't find in xml_documents table, we think server code is 1
|
1793 |
|
|
//(this is new document)
|
1794 |
|
|
else
|
1795 |
|
|
{
|
1796 |
|
|
pstmt.close();
|
1797 |
|
|
//conn.close();
|
1798 |
|
|
return serverCode;
|
1799 |
|
|
}
|
1800 |
2286
|
tao
|
|
1801 |
|
|
}
|
1802 |
|
|
catch(Exception e)
|
1803 |
1292
|
tao
|
{
|
1804 |
2286
|
tao
|
|
1805 |
1292
|
tao
|
throw e;
|
1806 |
|
|
|
1807 |
2286
|
tao
|
}
|
1808 |
|
|
finally
|
1809 |
1292
|
tao
|
{
|
1810 |
2286
|
tao
|
try
|
1811 |
1292
|
tao
|
{
|
1812 |
|
|
pstmt.close();
|
1813 |
|
|
//conn.close();
|
1814 |
2286
|
tao
|
|
1815 |
|
|
}
|
1816 |
|
|
catch(Exception ee)
|
1817 |
1292
|
tao
|
{
|
1818 |
2663
|
sgarg
|
logMetacat.error("Erorr in Replication.getServerLocation "+
|
1819 |
|
|
"to close pstmt"+ee.getMessage());
|
1820 |
1292
|
tao
|
}
|
1821 |
|
|
finally
|
1822 |
|
|
{
|
1823 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1824 |
|
|
}//finally
|
1825 |
|
|
}//finally
|
1826 |
|
|
//return serverCode;
|
1827 |
|
|
}
|
1828 |
2286
|
tao
|
|
1829 |
|
|
|
1830 |
|
|
|
1831 |
1292
|
tao
|
/**
|
1832 |
569
|
berkley
|
* This method returns the content of a url
|
1833 |
|
|
* @param u the url to return the content from
|
1834 |
|
|
* @return a string representing the content of the url
|
1835 |
|
|
* @throws java.io.IOException
|
1836 |
|
|
*/
|
1837 |
|
|
public static String getURLContent(URL u) throws java.io.IOException
|
1838 |
|
|
{
|
1839 |
|
|
char istreamChar;
|
1840 |
|
|
int istreamInt;
|
1841 |
2663
|
sgarg
|
logMetacat.info("Before open the stream"+u.toString());
|
1842 |
1606
|
tao
|
InputStream input = u.openStream();
|
1843 |
2663
|
sgarg
|
logMetacat.info("Afetr open the stream"+u.toString());
|
1844 |
1606
|
tao
|
InputStreamReader istream = new InputStreamReader(input);
|
1845 |
569
|
berkley
|
StringBuffer serverResponse = new StringBuffer();
|
1846 |
|
|
while((istreamInt = istream.read()) != -1)
|
1847 |
|
|
{
|
1848 |
|
|
istreamChar = (char)istreamInt;
|
1849 |
|
|
serverResponse.append(istreamChar);
|
1850 |
|
|
}
|
1851 |
1606
|
tao
|
istream.close();
|
1852 |
|
|
input.close();
|
1853 |
2286
|
tao
|
|
1854 |
569
|
berkley
|
return serverResponse.toString();
|
1855 |
|
|
}
|
1856 |
2286
|
tao
|
|
1857 |
584
|
berkley
|
/**
|
1858 |
2286
|
tao
|
* Method for writing replication messages to a log file specified in
|
1859 |
584
|
berkley
|
* metacat.properties
|
1860 |
|
|
*/
|
1861 |
|
|
public static void replLog(String message)
|
1862 |
|
|
{
|
1863 |
|
|
try
|
1864 |
|
|
{
|
1865 |
|
|
FileOutputStream fos = new FileOutputStream(
|
1866 |
|
|
util.getOption("replicationlog"), true);
|
1867 |
|
|
PrintWriter pw = new PrintWriter(fos);
|
1868 |
|
|
SimpleDateFormat formatter = new SimpleDateFormat ("yy-MM-dd HH:mm:ss");
|
1869 |
|
|
java.util.Date localtime = new java.util.Date();
|
1870 |
|
|
String dateString = formatter.format(localtime);
|
1871 |
|
|
dateString += " :: " + message;
|
1872 |
|
|
//time stamp each entry
|
1873 |
|
|
pw.println(dateString);
|
1874 |
|
|
pw.flush();
|
1875 |
|
|
}
|
1876 |
|
|
catch(Exception e)
|
1877 |
|
|
{
|
1878 |
675
|
berkley
|
System.out.println("error writing to replication log from " +
|
1879 |
|
|
"MetacatReplication.replLog: " + e.getMessage());
|
1880 |
595
|
berkley
|
//e.printStackTrace(System.out);
|
1881 |
584
|
berkley
|
}
|
1882 |
|
|
}
|
1883 |
2286
|
tao
|
|
1884 |
629
|
berkley
|
/**
|
1885 |
2286
|
tao
|
* Method for writing replication messages to a log file specified in
|
1886 |
1583
|
tao
|
* metacat.properties
|
1887 |
|
|
*/
|
1888 |
|
|
public static void replErrorLog(String message)
|
1889 |
|
|
{
|
1890 |
|
|
try
|
1891 |
|
|
{
|
1892 |
|
|
FileOutputStream fos = new FileOutputStream(
|
1893 |
|
|
util.getOption("replicationerrorlog"), true);
|
1894 |
|
|
PrintWriter pw = new PrintWriter(fos);
|
1895 |
|
|
SimpleDateFormat formatter = new SimpleDateFormat ("yy-MM-dd HH:mm:ss");
|
1896 |
|
|
java.util.Date localtime = new java.util.Date();
|
1897 |
|
|
String dateString = formatter.format(localtime);
|
1898 |
|
|
dateString += " :: " + message;
|
1899 |
|
|
//time stamp each entry
|
1900 |
|
|
pw.println(dateString);
|
1901 |
|
|
pw.flush();
|
1902 |
|
|
}
|
1903 |
|
|
catch(Exception e)
|
1904 |
|
|
{
|
1905 |
|
|
System.out.println("error writing to replication log from " +
|
1906 |
|
|
"MetacatReplication.replLog: " + e.getMessage());
|
1907 |
|
|
//e.printStackTrace(System.out);
|
1908 |
|
|
}
|
1909 |
|
|
}
|
1910 |
2286
|
tao
|
|
1911 |
1583
|
tao
|
/**
|
1912 |
629
|
berkley
|
* Returns true if the replicate field for server in xml_replication is 1.
|
1913 |
|
|
* Returns false otherwise
|
1914 |
|
|
*/
|
1915 |
|
|
public static boolean replToServer(String server)
|
1916 |
|
|
{
|
1917 |
1217
|
tao
|
DBConnection dbConn = null;
|
1918 |
|
|
int serialNumber = -1;
|
1919 |
667
|
berkley
|
PreparedStatement pstmt = null;
|
1920 |
629
|
berkley
|
try
|
1921 |
|
|
{
|
1922 |
1217
|
tao
|
dbConn=DBConnectionPool.
|
1923 |
|
|
getDBConnection("MetacatReplication.repltoServer");
|
1924 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
1925 |
2286
|
tao
|
pstmt = dbConn.prepareStatement("select replicate from " +
|
1926 |
667
|
berkley
|
"xml_replication where server like '" +
|
1927 |
|
|
server + "'");
|
1928 |
629
|
berkley
|
pstmt.execute();
|
1929 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1930 |
|
|
boolean tablehasrows = rs.next();
|
1931 |
|
|
if(tablehasrows)
|
1932 |
|
|
{
|
1933 |
|
|
int i = rs.getInt(1);
|
1934 |
|
|
if(i == 1)
|
1935 |
|
|
{
|
1936 |
667
|
berkley
|
pstmt.close();
|
1937 |
1217
|
tao
|
//conn.close();
|
1938 |
629
|
berkley
|
return true;
|
1939 |
|
|
}
|
1940 |
|
|
else
|
1941 |
|
|
{
|
1942 |
667
|
berkley
|
pstmt.close();
|
1943 |
1217
|
tao
|
//conn.close();
|
1944 |
629
|
berkley
|
return false;
|
1945 |
|
|
}
|
1946 |
|
|
}
|
1947 |
|
|
}
|
1948 |
|
|
catch(Exception e)
|
1949 |
|
|
{
|
1950 |
2286
|
tao
|
System.out.println("error in MetacatReplication.replToServer: " +
|
1951 |
675
|
berkley
|
e.getMessage());
|
1952 |
629
|
berkley
|
}
|
1953 |
667
|
berkley
|
finally
|
1954 |
|
|
{
|
1955 |
|
|
try
|
1956 |
|
|
{
|
1957 |
|
|
pstmt.close();
|
1958 |
1217
|
tao
|
//conn.close();
|
1959 |
|
|
}//try
|
1960 |
667
|
berkley
|
catch(Exception ee)
|
1961 |
1217
|
tao
|
{
|
1962 |
2663
|
sgarg
|
logMetacat.error("Error in MetacatReplication.replToServer: "
|
1963 |
|
|
+ee.getMessage());
|
1964 |
1217
|
tao
|
}//catch
|
1965 |
|
|
finally
|
1966 |
|
|
{
|
1967 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
1968 |
|
|
}//finally
|
1969 |
|
|
}//finally
|
1970 |
629
|
berkley
|
return false;
|
1971 |
|
|
//the default if this server does not exist is to not replicate to it.
|
1972 |
|
|
}
|
1973 |
2286
|
tao
|
|
1974 |
|
|
|
1975 |
522
|
berkley
|
}
|