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155
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jones
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/**
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203
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jones
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* '$RCSfile$'
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3 |
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* Purpose: A Class that searches a relational DB for elements and
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4 |
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* attributes that have free text matches a query string,
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* or structured query matches to a path specified node in the
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* XML hierarchy. It returns a result set consisting of the
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7 |
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* document ID for each document that satisfies the query
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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: Matt Jones
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349
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jones
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* Release: @release@
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155
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jones
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*
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203
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jones
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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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155
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jones
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*/
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32 |
607
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bojilova
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package edu.ucsb.nceas.metacat;
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155
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jones
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34 |
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import java.io.*;
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35 |
401
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berkley
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import java.util.Vector;
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155
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jones
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import java.net.URL;
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import java.net.MalformedURLException;
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import java.sql.*;
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import java.util.Stack;
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import java.util.Hashtable;
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import java.util.Enumeration;
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/**
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172
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jones
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* A Class that searches a relational DB for elements and
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45 |
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* attributes that have free text matches a query string,
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46 |
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* or structured query matches to a path specified node in the
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47 |
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* XML hierarchy. It returns a result set consisting of the
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48 |
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* document ID for each document that satisfies the query
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155
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jones
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*/
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public class DBQuery {
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52 |
441
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bojilova
|
static final int ALL = 1;
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static final int WRITE = 2;
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static final int READ = 4;
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55 |
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535
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jones
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private Connection conn = null;
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private String parserName = null;
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465
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berkley
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private MetaCatUtil util = new MetaCatUtil();
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59 |
155
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jones
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/**
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* the main routine used to test the DBQuery utility.
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184
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jones
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* <p>
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* Usage: java DBQuery <xmlfile>
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63 |
155
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jones
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*
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170
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jones
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* @param xmlfile the filename of the xml file containing the query
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155
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jones
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*/
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66 |
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static public void main(String[] args) {
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67 |
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184
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jones
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if (args.length < 1)
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155
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jones
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{
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70 |
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System.err.println("Wrong number of arguments!!!");
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184
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jones
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System.err.println("USAGE: java DBQuery <xmlfile>");
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155
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jones
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return;
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} else {
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try {
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170
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jones
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String xmlfile = args[0];
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155
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jones
|
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// Open a connection to the database
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184
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jones
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MetaCatUtil util = new MetaCatUtil();
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705
|
berkley
|
double startTime = System.currentTimeMillis();
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184
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jones
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Connection dbconn = util.openDBConnection();
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705
|
berkley
|
double connTime = System.currentTimeMillis();
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170
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jones
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// Execute the query
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184
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jones
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DBQuery queryobj = new DBQuery(dbconn, util.getOption("saxparser"));
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170
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jones
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FileReader xml = new FileReader(new File(xmlfile));
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155
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jones
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Hashtable nodelist = null;
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87 |
441
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bojilova
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nodelist = queryobj.findDocuments(xml, null, null);
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88 |
705
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berkley
|
double stopTime = System.currentTimeMillis();
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172
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jones
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// Print the reulting document listing
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155
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jones
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StringBuffer result = new StringBuffer();
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91 |
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String document = null;
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170
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jones
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String docid = null;
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155
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jones
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result.append("<?xml version=\"1.0\"?>\n");
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296
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higgins
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result.append("<resultset>\n");
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705
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berkley
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// following line removed by Dan Higgins to avoid insertion of
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96 |
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// query XML inside returned XML doc
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//result.append(" <query>" + xmlfile + "</query>\n");
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155
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jones
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Enumeration doclist = nodelist.keys();
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while (doclist.hasMoreElements()) {
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170
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jones
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docid = (String)doclist.nextElement();
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155
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jones
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document = (String)nodelist.get(docid);
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result.append(" <document>\n " + document +
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"\n </document>\n");
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}
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result.append("</resultset>\n");
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106 |
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System.out.println(result);
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108 |
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109 |
705
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berkley
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double dbOpenTime = (connTime - startTime)/1000;
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110 |
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double insertTime = (stopTime - connTime)/1000;
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double executionTime = (stopTime - startTime)/1000;
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System.out.println("\n\nTotal Execution time was: " +
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executionTime + " seconds.");
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System.out.println("Time to open DB connection was: " + dbOpenTime +
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" seconds.");
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System.out.println("Time to perform query was: " + insertTime +
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" seconds.");
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155
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jones
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} catch (Exception e) {
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120 |
675
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berkley
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System.err.println("Error in DBQuery.main");
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121 |
155
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jones
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System.err.println(e.getMessage());
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e.printStackTrace(System.err);
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}
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}
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}
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126 |
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/**
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128 |
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* construct an instance of the DBQuery class
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129 |
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*
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130 |
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* <p>Generally, one would call the findDocuments() routine after creating
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131 |
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* an instance to specify the search query</p>
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132 |
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*
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133 |
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* @param conn the JDBC connection that we use for the query
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134 |
172
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jones
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* @param parserName the fully qualified name of a Java class implementing
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135 |
185
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jones
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* the org.xml.sax.XMLReader interface
|
136 |
155
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jones
|
*/
|
137 |
172
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jones
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public DBQuery( Connection conn, String parserName )
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138 |
155
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jones
|
throws IOException,
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139 |
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SQLException,
|
140 |
172
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jones
|
ClassNotFoundException {
|
141 |
155
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jones
|
this.conn = conn;
|
142 |
172
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jones
|
this.parserName = parserName;
|
143 |
155
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jones
|
}
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144 |
|
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145 |
465
|
berkley
|
public Hashtable findDocuments(Reader xmlquery, String user, String group)
|
146 |
|
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{
|
147 |
|
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return findDocuments(xmlquery, user, group, null);
|
148 |
|
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}
|
149 |
|
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150 |
155
|
jones
|
/**
|
151 |
|
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* routine to search the elements and attributes looking to match query
|
152 |
|
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*
|
153 |
178
|
jones
|
* @param xmlquery the xml serialization of the query (@see pathquery.dtd)
|
154 |
465
|
berkley
|
* @param user the username of the user
|
155 |
|
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* @param group the group of the user
|
156 |
|
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* @param returndoc an array of document types to backtrack against.
|
157 |
155
|
jones
|
*/
|
158 |
465
|
berkley
|
public Hashtable findDocuments(Reader xmlquery, String user, String group,
|
159 |
|
|
String[] returndoc)
|
160 |
453
|
berkley
|
{
|
161 |
602
|
berkley
|
//System.out.println("in finddocuments");
|
162 |
535
|
jones
|
Hashtable docListResult = new Hashtable();
|
163 |
667
|
berkley
|
PreparedStatement pstmt = null;
|
164 |
170
|
jones
|
String docid = null;
|
165 |
155
|
jones
|
String docname = null;
|
166 |
|
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String doctype = null;
|
167 |
692
|
bojilova
|
// DOCTITLE attr cleared from the db
|
168 |
|
|
// String doctitle = null;
|
169 |
401
|
berkley
|
String createDate = null;
|
170 |
|
|
String updateDate = null;
|
171 |
|
|
String fieldname = null;
|
172 |
|
|
String fielddata = null;
|
173 |
453
|
berkley
|
String relation = null;
|
174 |
667
|
berkley
|
Connection dbconn = null;
|
175 |
624
|
berkley
|
int rev = 0;
|
176 |
155
|
jones
|
StringBuffer document = null;
|
177 |
465
|
berkley
|
Vector returndocVec = new Vector();
|
178 |
|
|
|
179 |
|
|
if(returndoc != null)
|
180 |
|
|
{//add the returndoc elements to a vector for easier manipulation
|
181 |
|
|
for(int i=0; i<returndoc.length; i++)
|
182 |
|
|
{
|
183 |
|
|
returndocVec.add(new String((String)returndoc[i]));
|
184 |
|
|
}
|
185 |
|
|
}
|
186 |
|
|
|
187 |
155
|
jones
|
try {
|
188 |
667
|
berkley
|
dbconn = util.openDBConnection();
|
189 |
172
|
jones
|
// Get the XML query and covert it into a SQL statment
|
190 |
178
|
jones
|
QuerySpecification qspec = new QuerySpecification(xmlquery,
|
191 |
535
|
jones
|
parserName,
|
192 |
624
|
berkley
|
util.getOption("accNumSeparator"));
|
193 |
626
|
berkley
|
// System.out.println(qspec.printSQL());
|
194 |
667
|
berkley
|
pstmt = dbconn.prepareStatement( qspec.printSQL() );
|
195 |
155
|
jones
|
|
196 |
172
|
jones
|
// Execute the SQL query using the JDBC connection
|
197 |
155
|
jones
|
pstmt.execute();
|
198 |
|
|
ResultSet rs = pstmt.getResultSet();
|
199 |
|
|
boolean tableHasRows = rs.next();
|
200 |
667
|
berkley
|
while (tableHasRows)
|
201 |
|
|
{
|
202 |
170
|
jones
|
docid = rs.getString(1);
|
203 |
667
|
berkley
|
if ( !hasPermission(dbconn, user, group, docid) ) {
|
204 |
612
|
bojilova
|
// Advance to the next record in the cursor
|
205 |
|
|
tableHasRows = rs.next();
|
206 |
|
|
continue;
|
207 |
|
|
}
|
208 |
155
|
jones
|
docname = rs.getString(2);
|
209 |
|
|
doctype = rs.getString(3);
|
210 |
692
|
bojilova
|
// DOCTITLE attr cleared from the db
|
211 |
|
|
// doctitle = rs.getString(4);
|
212 |
|
|
createDate = rs.getString(4);
|
213 |
|
|
updateDate = rs.getString(5);
|
214 |
|
|
rev = rs.getInt(6);
|
215 |
667
|
berkley
|
|
216 |
602
|
berkley
|
//System.out.println("vec.size = " + returndocVec.size());
|
217 |
465
|
berkley
|
if(returndocVec.size() != 0 && !returndocVec.contains(doctype))
|
218 |
|
|
{ //there are returndocs to match (backtracking can now be performed).
|
219 |
602
|
berkley
|
//System.out.println("olddoctype: " + doctype);
|
220 |
465
|
berkley
|
StringBuffer btBuf = new StringBuffer();
|
221 |
|
|
btBuf.append("select object from xml_relation where ");
|
222 |
|
|
btBuf.append("objdoctype in (");
|
223 |
|
|
//build the doctype list for the backtracking sql statement
|
224 |
|
|
for(int i=0; i<returndocVec.size(); i++)
|
225 |
|
|
{
|
226 |
|
|
btBuf.append("'").append((String)returndocVec.get(i)).append("'");
|
227 |
|
|
if(i != (returndocVec.size() - 1))
|
228 |
|
|
{
|
229 |
|
|
btBuf.append(", ");
|
230 |
475
|
berkley
|
}
|
231 |
465
|
berkley
|
}
|
232 |
|
|
btBuf.append(") ");
|
233 |
|
|
btBuf.append("and subject like '");
|
234 |
602
|
berkley
|
//btBuf.append("metacat://").append(util.getOption("server"));
|
235 |
|
|
//btBuf.append("?docid=").append(docid).append("'");
|
236 |
|
|
btBuf.append("%docid=").append(docid).append("'");
|
237 |
606
|
berkley
|
//System.out.println("sql: " + btBuf.toString());
|
238 |
667
|
berkley
|
|
239 |
671
|
berkley
|
PreparedStatement npstmt = dbconn.prepareStatement(btBuf.toString());
|
240 |
|
|
npstmt.execute();
|
241 |
|
|
ResultSet btrs = npstmt.getResultSet();
|
242 |
465
|
berkley
|
boolean hasBtRows = btrs.next();
|
243 |
|
|
if(hasBtRows)
|
244 |
|
|
{ //there was a backtrackable document found
|
245 |
|
|
DocumentImpl xmldoc = null;
|
246 |
610
|
berkley
|
//System.out.println("document found is: " + btrs.getString(1));
|
247 |
524
|
berkley
|
MetacatURL objURL = new MetacatURL(btrs.getString(1));
|
248 |
465
|
berkley
|
try
|
249 |
|
|
{
|
250 |
667
|
berkley
|
xmldoc = new DocumentImpl(dbconn, objURL.getParam(0)[1]);
|
251 |
465
|
berkley
|
}
|
252 |
|
|
catch(Exception e)
|
253 |
|
|
{
|
254 |
675
|
berkley
|
System.out.println("Error getting document in " +
|
255 |
|
|
"DBQuery.findDocuments: " + e.getMessage());
|
256 |
465
|
berkley
|
}
|
257 |
|
|
|
258 |
|
|
docid = xmldoc.getDocID();
|
259 |
|
|
docname = xmldoc.getDocname();
|
260 |
|
|
doctype = xmldoc.getDoctype();
|
261 |
692
|
bojilova
|
// DOCTITLE attr cleared from the db
|
262 |
|
|
// doctitle = xmldoc.getDocTitle();
|
263 |
465
|
berkley
|
createDate = xmldoc.getCreateDate();
|
264 |
|
|
updateDate = xmldoc.getUpdateDate();
|
265 |
|
|
//System.out.println("docname: " + docname + " doctype: " + doctype +
|
266 |
|
|
// " doctitle: " + doctitle + " createdate: " +
|
267 |
|
|
// createDate + " updatedate: " + updateDate);
|
268 |
|
|
}
|
269 |
671
|
berkley
|
npstmt.close();
|
270 |
465
|
berkley
|
btrs.close();
|
271 |
|
|
}
|
272 |
|
|
|
273 |
155
|
jones
|
document = new StringBuffer();
|
274 |
465
|
berkley
|
//System.out.println("packagdoctype: " + util.getOption("packagedoctype"));
|
275 |
624
|
berkley
|
//if(!doctype.equals(util.getOption("packagedoctype")))
|
276 |
465
|
berkley
|
{
|
277 |
624
|
berkley
|
String completeDocid = docid + util.getOption("accNumSeparator");
|
278 |
|
|
completeDocid += rev;
|
279 |
|
|
document.append("<docid>").append(completeDocid).append("</docid>");
|
280 |
465
|
berkley
|
if (docname != null) {
|
281 |
|
|
document.append("<docname>" + docname + "</docname>");
|
282 |
|
|
}
|
283 |
|
|
if (doctype != null) {
|
284 |
|
|
document.append("<doctype>" + doctype + "</doctype>");
|
285 |
|
|
}
|
286 |
692
|
bojilova
|
// DOCTITLE attr cleared from the db
|
287 |
|
|
// if (doctitle != null) {
|
288 |
|
|
// document.append("<doctitle>" + doctitle + "</doctitle>");
|
289 |
|
|
// }
|
290 |
465
|
berkley
|
if(createDate != null) {
|
291 |
|
|
document.append("<createdate>" + createDate + "</createdate>");
|
292 |
|
|
}
|
293 |
|
|
if(updateDate != null) {
|
294 |
|
|
document.append("<updatedate>" + updateDate + "</updatedate>");
|
295 |
|
|
}
|
296 |
|
|
// Store the document id and the root node id
|
297 |
|
|
docListResult.put(docid,(String)document.toString());
|
298 |
155
|
jones
|
}
|
299 |
|
|
|
300 |
|
|
// Advance to the next record in the cursor
|
301 |
|
|
tableHasRows = rs.next();
|
302 |
|
|
}
|
303 |
667
|
berkley
|
rs.close();
|
304 |
671
|
berkley
|
//pstmt.close();
|
305 |
401
|
berkley
|
|
306 |
|
|
if(qspec.containsExtendedSQL())
|
307 |
|
|
{
|
308 |
|
|
Vector extendedFields = new Vector(qspec.getReturnFieldList());
|
309 |
|
|
Vector results = new Vector();
|
310 |
465
|
berkley
|
Enumeration keylist = docListResult.keys();
|
311 |
|
|
StringBuffer doclist = new StringBuffer();
|
312 |
|
|
while(keylist.hasMoreElements())
|
313 |
|
|
{
|
314 |
|
|
doclist.append("'");
|
315 |
|
|
doclist.append((String)keylist.nextElement());
|
316 |
|
|
doclist.append("',");
|
317 |
|
|
}
|
318 |
|
|
doclist.deleteCharAt(doclist.length()-1); //remove the last comma
|
319 |
667
|
berkley
|
pstmt.close();
|
320 |
|
|
pstmt = dbconn.prepareStatement(qspec.printExtendedSQL(
|
321 |
465
|
berkley
|
doclist.toString()));
|
322 |
401
|
berkley
|
pstmt.execute();
|
323 |
|
|
rs = pstmt.getResultSet();
|
324 |
|
|
tableHasRows = rs.next();
|
325 |
|
|
while(tableHasRows)
|
326 |
|
|
{
|
327 |
|
|
docid = rs.getString(1);
|
328 |
673
|
bojilova
|
if ( !hasPermission(dbconn, user, group, docid) ) {
|
329 |
|
|
// Advance to the next record in the cursor
|
330 |
|
|
tableHasRows = rs.next();
|
331 |
|
|
continue;
|
332 |
|
|
}
|
333 |
401
|
berkley
|
fieldname = rs.getString(2);
|
334 |
|
|
fielddata = rs.getString(3);
|
335 |
|
|
|
336 |
|
|
document = new StringBuffer();
|
337 |
|
|
|
338 |
423
|
berkley
|
document.append("<param name=\"");
|
339 |
405
|
berkley
|
document.append(fieldname);
|
340 |
423
|
berkley
|
document.append("\">");
|
341 |
401
|
berkley
|
document.append(fielddata);
|
342 |
423
|
berkley
|
document.append("</param>");
|
343 |
401
|
berkley
|
|
344 |
|
|
tableHasRows = rs.next();
|
345 |
|
|
if(docListResult.containsKey(docid))
|
346 |
|
|
{
|
347 |
|
|
String removedelement = (String)docListResult.remove(docid);
|
348 |
|
|
docListResult.put(docid, removedelement + document.toString());
|
349 |
|
|
}
|
350 |
|
|
else
|
351 |
|
|
{
|
352 |
|
|
docListResult.put(docid, document.toString());
|
353 |
|
|
}
|
354 |
|
|
}
|
355 |
667
|
berkley
|
rs.close();
|
356 |
401
|
berkley
|
}
|
357 |
453
|
berkley
|
|
358 |
465
|
berkley
|
//this loop adds the relation data to the resultdoc
|
359 |
|
|
//this code might be able to be added to the backtracking code above
|
360 |
|
|
Enumeration docidkeys = docListResult.keys();
|
361 |
|
|
while(docidkeys.hasMoreElements())
|
362 |
453
|
berkley
|
{
|
363 |
602
|
berkley
|
//String connstring = "metacat://"+util.getOption("server")+"?docid=";
|
364 |
|
|
String connstring = "%docid=";
|
365 |
465
|
berkley
|
String docidkey = (String)docidkeys.nextElement();
|
366 |
603
|
berkley
|
//System.out.println("relationsql: " + qspec.printRelationSQL(
|
367 |
|
|
// connstring + docidkey));
|
368 |
667
|
berkley
|
pstmt.close();
|
369 |
|
|
pstmt = dbconn.prepareStatement(
|
370 |
473
|
berkley
|
qspec.printRelationSQL(connstring + docidkey));
|
371 |
465
|
berkley
|
pstmt.execute();
|
372 |
|
|
rs = pstmt.getResultSet();
|
373 |
|
|
tableHasRows = rs.next();
|
374 |
|
|
while(tableHasRows)
|
375 |
|
|
{
|
376 |
|
|
String sub = rs.getString(1);
|
377 |
|
|
String rel = rs.getString(2);
|
378 |
|
|
String obj = rs.getString(3);
|
379 |
489
|
berkley
|
String subDT = rs.getString(4);
|
380 |
|
|
String objDT = rs.getString(5);
|
381 |
|
|
|
382 |
524
|
berkley
|
MetacatURL murl = new MetacatURL(sub);
|
383 |
566
|
jones
|
if(murl.getProtocol().equals("metacat"))
|
384 |
465
|
berkley
|
{//we only want to process metacat urls here.
|
385 |
|
|
String[] tempparam = murl.getParam(0);
|
386 |
|
|
if(tempparam[0].equals("docid") && tempparam[1].equals(docidkey))
|
387 |
453
|
berkley
|
{
|
388 |
465
|
berkley
|
document = new StringBuffer();
|
389 |
|
|
document.append("<relation>");
|
390 |
|
|
document.append("<relationtype>").append(rel);
|
391 |
|
|
document.append("</relationtype>");
|
392 |
|
|
document.append("<relationdoc>").append(obj);
|
393 |
|
|
document.append("</relationdoc>");
|
394 |
489
|
berkley
|
document.append("<relationdoctype>").append(objDT);
|
395 |
|
|
document.append("</relationdoctype>");
|
396 |
465
|
berkley
|
document.append("</relation>");
|
397 |
|
|
|
398 |
|
|
String removedelement = (String)docListResult.remove(docidkey);
|
399 |
|
|
docListResult.put(docidkey, removedelement + document.toString());
|
400 |
|
|
|
401 |
453
|
berkley
|
}
|
402 |
|
|
}
|
403 |
465
|
berkley
|
tableHasRows = rs.next();
|
404 |
453
|
berkley
|
}
|
405 |
667
|
berkley
|
rs.close();
|
406 |
|
|
pstmt.close();
|
407 |
453
|
berkley
|
}
|
408 |
667
|
berkley
|
|
409 |
155
|
jones
|
} catch (SQLException e) {
|
410 |
667
|
berkley
|
System.err.println("SQL Error in DBQuery.findDocuments: " +
|
411 |
|
|
e.getMessage());
|
412 |
170
|
jones
|
} catch (IOException ioe) {
|
413 |
675
|
berkley
|
System.err.println("IO error in DBQuery.findDocuments:");
|
414 |
170
|
jones
|
System.err.println(ioe.getMessage());
|
415 |
667
|
berkley
|
} catch (Exception ee) {
|
416 |
675
|
berkley
|
System.out.println("Exception in DBQuery.findDocuments: " +
|
417 |
667
|
berkley
|
ee.getMessage());
|
418 |
155
|
jones
|
}
|
419 |
667
|
berkley
|
finally {
|
420 |
|
|
try
|
421 |
|
|
{
|
422 |
|
|
dbconn.close();
|
423 |
|
|
}
|
424 |
|
|
catch(SQLException sqle)
|
425 |
|
|
{
|
426 |
|
|
System.out.println("error closing conn in DBQuery.findDocuments");
|
427 |
|
|
}
|
428 |
|
|
}
|
429 |
423
|
berkley
|
//System.out.println("docListResult: ");
|
430 |
|
|
//System.out.println(docListResult.toString());
|
431 |
155
|
jones
|
return docListResult;
|
432 |
|
|
}
|
433 |
342
|
berkley
|
|
434 |
|
|
/**
|
435 |
436
|
berkley
|
* returns a string array of the contents of a particular node.
|
436 |
|
|
* If the node appears more than once, the contents are returned
|
437 |
|
|
* in the order in which they appearred in the document.
|
438 |
|
|
* @param nodename the name or path of the particular node.
|
439 |
|
|
* @param docid the docid of the document you want the node from.
|
440 |
|
|
* @param conn a database connection-this allows this method to be static
|
441 |
|
|
*/
|
442 |
|
|
public static Object[] getNodeContent(String nodename, String docid,
|
443 |
|
|
Connection conn)
|
444 |
|
|
{
|
445 |
|
|
StringBuffer query = new StringBuffer();
|
446 |
|
|
Vector result = new Vector();
|
447 |
667
|
berkley
|
PreparedStatement pstmt = null;
|
448 |
436
|
berkley
|
query.append("select nodedata from xml_nodes where parentnodeid in ");
|
449 |
|
|
query.append("(select nodeid from xml_index where path like '");
|
450 |
|
|
query.append(nodename);
|
451 |
|
|
query.append("' and docid like '").append(docid).append("')");
|
452 |
|
|
try
|
453 |
|
|
{
|
454 |
|
|
pstmt = conn.prepareStatement(query.toString());
|
455 |
|
|
|
456 |
|
|
// Execute the SQL query using the JDBC connection
|
457 |
|
|
pstmt.execute();
|
458 |
|
|
ResultSet rs = pstmt.getResultSet();
|
459 |
|
|
boolean tableHasRows = rs.next();
|
460 |
|
|
while (tableHasRows)
|
461 |
|
|
{
|
462 |
|
|
result.add(rs.getString(1));
|
463 |
|
|
System.out.println(rs.getString(1));
|
464 |
|
|
tableHasRows = rs.next();
|
465 |
|
|
}
|
466 |
|
|
}
|
467 |
|
|
catch (SQLException e)
|
468 |
|
|
{
|
469 |
675
|
berkley
|
System.err.println("Error in DBQuery.getNodeContent: " + e.getMessage());
|
470 |
667
|
berkley
|
} finally {
|
471 |
|
|
try
|
472 |
|
|
{
|
473 |
|
|
pstmt.close();
|
474 |
|
|
}
|
475 |
|
|
catch(SQLException sqle) {}
|
476 |
|
|
}
|
477 |
436
|
berkley
|
return result.toArray();
|
478 |
|
|
}
|
479 |
|
|
|
480 |
|
|
/**
|
481 |
342
|
berkley
|
* format a structured query as an XML document that conforms
|
482 |
|
|
* to the pathquery.dtd and is appropriate for submission to the DBQuery
|
483 |
|
|
* structured query engine
|
484 |
|
|
*
|
485 |
|
|
* @param params The list of parameters that should be included in the query
|
486 |
|
|
*/
|
487 |
372
|
berkley
|
public static String createSQuery(Hashtable params)
|
488 |
350
|
berkley
|
{
|
489 |
|
|
StringBuffer query = new StringBuffer();
|
490 |
342
|
berkley
|
Enumeration elements;
|
491 |
|
|
Enumeration keys;
|
492 |
372
|
berkley
|
String doctype = null;
|
493 |
|
|
String casesensitive = null;
|
494 |
|
|
String searchmode = null;
|
495 |
342
|
berkley
|
Object nextkey;
|
496 |
|
|
Object nextelement;
|
497 |
350
|
berkley
|
//add the xml headers
|
498 |
|
|
query.append("<?xml version=\"1.0\"?>\n");
|
499 |
342
|
berkley
|
query.append("<pathquery version=\"1.0\"><meta_file_id>");
|
500 |
350
|
berkley
|
|
501 |
342
|
berkley
|
if(params.containsKey("meta_file_id"))
|
502 |
|
|
{
|
503 |
|
|
query.append( ((String[])params.get("meta_file_id"))[0]);
|
504 |
535
|
jones
|
query.append("</meta_file_id>");
|
505 |
342
|
berkley
|
}
|
506 |
|
|
else
|
507 |
|
|
{
|
508 |
|
|
query.append("unspecified</meta_file_id>");
|
509 |
|
|
}
|
510 |
350
|
berkley
|
|
511 |
692
|
bojilova
|
// DOCTITLE attr cleared from the db
|
512 |
|
|
// query.append("<querytitle>");
|
513 |
|
|
// if(params.containsKey("querytitle"))
|
514 |
|
|
// {
|
515 |
|
|
// query.append(((String[])params.get("querytitle"))[0]);
|
516 |
|
|
// query.append("</querytitle>");
|
517 |
|
|
// }
|
518 |
|
|
// else
|
519 |
|
|
// {
|
520 |
|
|
// query.append("unspecified</querytitle>");
|
521 |
|
|
// }
|
522 |
372
|
berkley
|
|
523 |
|
|
if(params.containsKey("doctype"))
|
524 |
|
|
{
|
525 |
|
|
doctype = ((String[])params.get("doctype"))[0];
|
526 |
|
|
}
|
527 |
|
|
else
|
528 |
|
|
{
|
529 |
|
|
doctype = "ANY";
|
530 |
|
|
}
|
531 |
|
|
|
532 |
401
|
berkley
|
if(params.containsKey("returnfield"))
|
533 |
|
|
{
|
534 |
|
|
String[] returnfield = ((String[])params.get("returnfield"));
|
535 |
|
|
for(int i=0; i<returnfield.length; i++)
|
536 |
|
|
{
|
537 |
|
|
query.append("<returnfield>").append(returnfield[i]);
|
538 |
|
|
query.append("</returnfield>");
|
539 |
|
|
}
|
540 |
|
|
}
|
541 |
|
|
|
542 |
535
|
jones
|
if(params.containsKey("owner"))
|
543 |
|
|
{
|
544 |
|
|
String[] owner = ((String[])params.get("owner"));
|
545 |
|
|
for(int i=0; i<owner.length; i++)
|
546 |
|
|
{
|
547 |
|
|
query.append("<owner>").append(owner[i]);
|
548 |
|
|
query.append("</owner>");
|
549 |
|
|
}
|
550 |
|
|
}
|
551 |
|
|
|
552 |
|
|
if(params.containsKey("site"))
|
553 |
|
|
{
|
554 |
|
|
String[] site = ((String[])params.get("site"));
|
555 |
|
|
for(int i=0; i<site.length; i++)
|
556 |
|
|
{
|
557 |
|
|
query.append("<site>").append(site[i]);
|
558 |
|
|
query.append("</site>");
|
559 |
|
|
}
|
560 |
|
|
}
|
561 |
|
|
|
562 |
350
|
berkley
|
//if you don't limit the query by doctype, then it just creates
|
563 |
|
|
//an empty returndoctype tag.
|
564 |
342
|
berkley
|
if (!doctype.equals("any") &&
|
565 |
|
|
!doctype.equals("ANY") &&
|
566 |
|
|
!doctype.equals("") )
|
567 |
|
|
{
|
568 |
|
|
query.append("<returndoctype>");
|
569 |
|
|
query.append(doctype).append("</returndoctype>");
|
570 |
|
|
}
|
571 |
350
|
berkley
|
else
|
572 |
|
|
{
|
573 |
|
|
query.append("<returndoctype></returndoctype>");
|
574 |
|
|
}
|
575 |
|
|
|
576 |
|
|
//allows the dynamic switching of boolean operators
|
577 |
|
|
if(params.containsKey("operator"))
|
578 |
|
|
{
|
579 |
|
|
query.append("<querygroup operator=\"" +
|
580 |
535
|
jones
|
((String[])params.get("operator"))[0] + "\">");
|
581 |
350
|
berkley
|
}
|
582 |
|
|
else
|
583 |
|
|
{ //the default operator is UNION
|
584 |
|
|
query.append("<querygroup operator=\"UNION\">");
|
585 |
|
|
}
|
586 |
535
|
jones
|
|
587 |
372
|
berkley
|
if(params.containsKey("casesensitive"))
|
588 |
|
|
{
|
589 |
|
|
casesensitive = ((String[])params.get("casesensitive"))[0];
|
590 |
|
|
}
|
591 |
|
|
else
|
592 |
|
|
{
|
593 |
|
|
casesensitive = "false";
|
594 |
|
|
}
|
595 |
|
|
|
596 |
|
|
if(params.containsKey("searchmode"))
|
597 |
|
|
{
|
598 |
|
|
searchmode = ((String[])params.get("searchmode"))[0];
|
599 |
|
|
}
|
600 |
|
|
else
|
601 |
|
|
{
|
602 |
|
|
searchmode = "contains";
|
603 |
|
|
}
|
604 |
535
|
jones
|
|
605 |
342
|
berkley
|
//anyfield is a special case because it does a
|
606 |
|
|
//free text search. It does not have a <pathexpr>
|
607 |
350
|
berkley
|
//tag. This allows for a free text search within the structured
|
608 |
|
|
//query. This is useful if the INTERSECT operator is used.
|
609 |
|
|
if(params.containsKey("anyfield"))
|
610 |
342
|
berkley
|
{
|
611 |
372
|
berkley
|
String[] anyfield = ((String[])params.get("anyfield"));
|
612 |
|
|
//allow for more than one value for anyfield
|
613 |
|
|
for(int i=0; i<anyfield.length; i++)
|
614 |
350
|
berkley
|
{
|
615 |
372
|
berkley
|
if(!anyfield[i].equals(""))
|
616 |
|
|
{
|
617 |
|
|
query.append("<queryterm casesensitive=\"" + casesensitive +
|
618 |
|
|
"\" " + "searchmode=\"" + searchmode + "\"><value>" +
|
619 |
535
|
jones
|
anyfield[i] +
|
620 |
|
|
"</value></queryterm>");
|
621 |
372
|
berkley
|
}
|
622 |
350
|
berkley
|
}
|
623 |
342
|
berkley
|
}
|
624 |
535
|
jones
|
|
625 |
342
|
berkley
|
//this while loop finds the rest of the parameters
|
626 |
|
|
//and attempts to query for the field specified
|
627 |
|
|
//by the parameter.
|
628 |
|
|
elements = params.elements();
|
629 |
|
|
keys = params.keys();
|
630 |
|
|
while(keys.hasMoreElements() && elements.hasMoreElements())
|
631 |
|
|
{
|
632 |
|
|
nextkey = keys.nextElement();
|
633 |
535
|
jones
|
nextelement = elements.nextElement();
|
634 |
372
|
berkley
|
|
635 |
535
|
jones
|
//make sure we aren't querying for any of these
|
636 |
|
|
//parameters since the are already in the query
|
637 |
342
|
berkley
|
//in one form or another.
|
638 |
535
|
jones
|
if(!nextkey.toString().equals("doctype") &&
|
639 |
|
|
!nextkey.toString().equals("action") &&
|
640 |
|
|
!nextkey.toString().equals("qformat") &&
|
641 |
|
|
!nextkey.toString().equals("anyfield") &&
|
642 |
401
|
berkley
|
!nextkey.toString().equals("returnfield") &&
|
643 |
535
|
jones
|
!nextkey.toString().equals("owner") &&
|
644 |
|
|
!nextkey.toString().equals("site") &&
|
645 |
|
|
!nextkey.toString().equals("operator") )
|
646 |
|
|
{
|
647 |
372
|
berkley
|
//allow for more than value per field name
|
648 |
|
|
for(int i=0; i<((String[])nextelement).length; i++)
|
649 |
|
|
{
|
650 |
|
|
if(!((String[])nextelement)[i].equals(""))
|
651 |
|
|
{
|
652 |
|
|
query.append("<queryterm casesensitive=\"" + casesensitive +"\" " +
|
653 |
535
|
jones
|
"searchmode=\"" + searchmode + "\">" +
|
654 |
|
|
"<value>" +
|
655 |
372
|
berkley
|
//add the query value
|
656 |
535
|
jones
|
((String[])nextelement)[i] +
|
657 |
|
|
"</value><pathexpr>" +
|
658 |
|
|
//add the path to query by
|
659 |
372
|
berkley
|
nextkey.toString() +
|
660 |
|
|
"</pathexpr></queryterm>");
|
661 |
|
|
}
|
662 |
|
|
}
|
663 |
535
|
jones
|
}
|
664 |
342
|
berkley
|
}
|
665 |
|
|
query.append("</querygroup></pathquery>");
|
666 |
350
|
berkley
|
//append on the end of the xml and return the result as a string
|
667 |
342
|
berkley
|
return query.toString();
|
668 |
|
|
}
|
669 |
|
|
|
670 |
181
|
jones
|
/**
|
671 |
|
|
* format a simple free-text value query as an XML document that conforms
|
672 |
|
|
* to the pathquery.dtd and is appropriate for submission to the DBQuery
|
673 |
|
|
* structured query engine
|
674 |
|
|
*
|
675 |
|
|
* @param value the text string to search for in the xml catalog
|
676 |
|
|
* @param doctype the type of documents to include in the result set -- use
|
677 |
|
|
* "any" or "ANY" for unfiltered result sets
|
678 |
|
|
*/
|
679 |
|
|
public static String createQuery(String value, String doctype) {
|
680 |
|
|
StringBuffer xmlquery = new StringBuffer();
|
681 |
|
|
xmlquery.append("<?xml version=\"1.0\"?>\n");
|
682 |
|
|
xmlquery.append("<pathquery version=\"1.0\">");
|
683 |
|
|
xmlquery.append("<meta_file_id>Unspecified</meta_file_id>");
|
684 |
692
|
bojilova
|
// DOCTITLE attr cleared from the db
|
685 |
|
|
// xmlquery.append("<querytitle>Unspecified</querytitle>");
|
686 |
181
|
jones
|
|
687 |
|
|
if (!doctype.equals("any") && !doctype.equals("ANY")) {
|
688 |
|
|
xmlquery.append("<returndoctype>");
|
689 |
|
|
xmlquery.append(doctype).append("</returndoctype>");
|
690 |
|
|
}
|
691 |
|
|
|
692 |
|
|
xmlquery.append("<querygroup operator=\"UNION\">");
|
693 |
350
|
berkley
|
//chad added - 8/14
|
694 |
|
|
//the if statement allows a query to gracefully handle a null
|
695 |
|
|
//query. Without this if a nullpointerException is thrown.
|
696 |
|
|
if(!value.equals(""))
|
697 |
|
|
{
|
698 |
|
|
xmlquery.append("<queryterm casesensitive=\"false\" ");
|
699 |
|
|
xmlquery.append("searchmode=\"contains\">");
|
700 |
|
|
xmlquery.append("<value>").append(value).append("</value>");
|
701 |
|
|
xmlquery.append("</queryterm>");
|
702 |
|
|
}
|
703 |
181
|
jones
|
xmlquery.append("</querygroup>");
|
704 |
|
|
xmlquery.append("</pathquery>");
|
705 |
|
|
|
706 |
|
|
|
707 |
|
|
return (xmlquery.toString());
|
708 |
|
|
}
|
709 |
|
|
|
710 |
|
|
/**
|
711 |
|
|
* format a simple free-text value query as an XML document that conforms
|
712 |
|
|
* to the pathquery.dtd and is appropriate for submission to the DBQuery
|
713 |
|
|
* structured query engine
|
714 |
|
|
*
|
715 |
|
|
* @param value the text string to search for in the xml catalog
|
716 |
|
|
*/
|
717 |
|
|
public static String createQuery(String value) {
|
718 |
|
|
return createQuery(value, "any");
|
719 |
|
|
}
|
720 |
441
|
bojilova
|
|
721 |
570
|
bojilova
|
/**
|
722 |
|
|
* Check for "READ" permission on @docid for @user and/or @group
|
723 |
|
|
* from DB connection
|
724 |
|
|
*/
|
725 |
|
|
private boolean hasPermission ( Connection conn, String user,
|
726 |
|
|
String group, String docid )
|
727 |
605
|
bojilova
|
throws SQLException
|
728 |
570
|
bojilova
|
{
|
729 |
441
|
bojilova
|
// b' of the command line invocation
|
730 |
|
|
if ( (user == null) && (group == null) ) {
|
731 |
|
|
return true;
|
732 |
|
|
}
|
733 |
|
|
|
734 |
570
|
bojilova
|
// Check for READ permission on @docid for @user and/or @group
|
735 |
607
|
bojilova
|
AccessControlList aclobj = new AccessControlList(conn);
|
736 |
|
|
boolean hasPermission = aclobj.hasPermission("READ",user,docid);
|
737 |
570
|
bojilova
|
if ( !hasPermission && group != null ) {
|
738 |
607
|
bojilova
|
hasPermission = aclobj.hasPermission("READ",group,docid);
|
739 |
441
|
bojilova
|
}
|
740 |
570
|
bojilova
|
|
741 |
|
|
return hasPermission;
|
742 |
441
|
bojilova
|
}
|
743 |
|
|
|
744 |
155
|
jones
|
}
|