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/**
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* '$RCSfile$'
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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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*
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* '$Author: $'
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* '$Date: 2009-06-13 15:28:13 +0300 $'
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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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*/
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package edu.ucsb.nceas.metacat.dataone;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.sql.SQLException;
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import java.util.*;
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import java.text.DateFormat;
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import javax.servlet.ServletContext;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.commons.io.IOUtils;
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import org.apache.log4j.Logger;
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import org.dataone.service.exceptions.IdentifierNotUnique;
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import org.dataone.service.exceptions.InsufficientResources;
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import org.dataone.service.exceptions.InvalidRequest;
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import org.dataone.service.exceptions.InvalidSystemMetadata;
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import org.dataone.service.exceptions.InvalidToken;
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import org.dataone.service.exceptions.NotAuthorized;
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import org.dataone.service.exceptions.NotFound;
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import org.dataone.service.exceptions.NotImplemented;
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import org.dataone.service.exceptions.ServiceFailure;
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import org.dataone.service.exceptions.UnsupportedType;
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import org.dataone.service.mn.MemberNodeCrud;
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import org.dataone.service.types.*;
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import org.jibx.runtime.BindingDirectory;
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import org.jibx.runtime.IBindingFactory;
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import org.jibx.runtime.IMarshallingContext;
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import org.jibx.runtime.IUnmarshallingContext;
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import org.jibx.runtime.JiBXException;
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import com.gc.iotools.stream.is.InputStreamFromOutputStream;
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import edu.ucsb.nceas.metacat.AccessionNumberException;
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import edu.ucsb.nceas.metacat.MetacatResultSet;
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import edu.ucsb.nceas.metacat.MetacatResultSet.Document;
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import edu.ucsb.nceas.metacat.DocumentImpl;
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import edu.ucsb.nceas.metacat.EventLog;
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import edu.ucsb.nceas.metacat.IdentifierManager;
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import edu.ucsb.nceas.metacat.McdbDocNotFoundException;
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import edu.ucsb.nceas.metacat.McdbException;
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import edu.ucsb.nceas.metacat.MetacatHandler;
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import edu.ucsb.nceas.metacat.client.InsufficientKarmaException;
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import edu.ucsb.nceas.metacat.properties.PropertyService;
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import edu.ucsb.nceas.metacat.replication.ForceReplicationHandler;
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import edu.ucsb.nceas.metacat.service.SessionService;
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import edu.ucsb.nceas.metacat.util.DocumentUtil;
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import edu.ucsb.nceas.metacat.util.SessionData;
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import edu.ucsb.nceas.utilities.ParseLSIDException;
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import edu.ucsb.nceas.utilities.PropertyNotFoundException;
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/**
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*
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* Implements DataONE MemberNode CRUD API for Metacat.
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*
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* @author Matthew Jones
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*/
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public class CrudService implements MemberNodeCrud {
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/*private ServletContext servletContext;
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private HttpServletRequest request;
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private HttpServletResponse response;*/
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private static CrudService crudService = null;
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private MetacatHandler handler;
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private Hashtable<String, String[]> params;
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Logger logMetacat = null;
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private String metacatUrl;
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/**
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* singleton accessor
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*/
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public static CrudService getInstance()
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{
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if(crudService == null)
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{
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crudService = new CrudService();
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}
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return crudService;
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}
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/**
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* Initializes new instance by setting servlet context,request and response.
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* TODO: remove dependency on Servlet infrastructure
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* TODO: Make this a real service, and make it a Singleton
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*/
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public CrudService() {
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//change crud service into a singleton. dont pass servlet data structures here
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logMetacat = Logger.getLogger(CrudService.class);
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try
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{
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String server = PropertyService.getProperty("server.name");
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String port = PropertyService.getProperty("server.httpPort");
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String context = PropertyService.getProperty("application.context");
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metacatUrl = "http://" + server + ":" + port + "/" + context;
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logMetacat.debug("Initializing CrudService with url " + metacatUrl);
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}
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catch(Exception e)
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{
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logMetacat.error("Could not find servlet url in CrudService: " + e.getMessage());
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e.printStackTrace();
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throw new RuntimeException("Error getting servlet url in CrudService: " + e.getMessage());
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}
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/*this.servletContext = servletContext;
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this.request = request;
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this.response = response;*/
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params = new Hashtable<String, String[]>();
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handler = new MetacatHandler(new Timer());
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}
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/**
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* return the context url CrudService is using.
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*/
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public String getContextUrl()
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{
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return metacatUrl;
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}
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/**
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* set the params for this service from an HttpServletRequest param list
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*/
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public void setParamsFromRequest(HttpServletRequest request)
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{
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Enumeration paramlist = request.getParameterNames();
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while (paramlist.hasMoreElements()) {
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String name = (String) paramlist.nextElement();
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String[] value = (String[])request.getParameterValues(name);
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params.put(name, value);
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}
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}
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/**
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* set the parameter values needed for this request
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*/
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public void setParameter(String name, String[] value)
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{
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params.put(name, value);
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}
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public Identifier create(AuthToken token, Identifier guid,
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InputStream object, SystemMetadata sysmeta) throws InvalidToken,
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ServiceFailure, NotAuthorized, IdentifierNotUnique, UnsupportedType,
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InsufficientResources, InvalidSystemMetadata, NotImplemented {
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logMetacat.debug("Starting CrudService.create()...");
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// authenticate & get user info
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SessionData sessionData = getSessionData(token);
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String username = sessionData.getUserName();
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String[] groups = sessionData.getGroupNames();
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// verify that guid == SystemMetadata.getIdentifier()
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logMetacat.debug("Comparing guid|sysmeta_guid: " + guid.getValue() + "|" + sysmeta.getIdentifier().getValue());
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if (!guid.getValue().equals(sysmeta.getIdentifier().getValue())) {
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throw new InvalidSystemMetadata("1180",
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"GUID in method call does not match GUID in system metadata.");
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}
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logMetacat.debug("Checking if identifier exists...");
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// Check that the identifier does not already exist
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IdentifierManager im = IdentifierManager.getInstance();
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if (im.identifierExists(guid.getValue())) {
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throw new IdentifierNotUnique("1120",
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"GUID is already in use by an existing object.");
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}
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// Check if we are handling metadata or data
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boolean isScienceMetadata = isScienceMetadata(sysmeta);
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if (isScienceMetadata) {
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// CASE METADATA:
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try {
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this.insertDocument(object, guid, sessionData);
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} catch (IOException e) {
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String msg = "Could not create string from XML stream: " +
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" " + e.getMessage();
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logMetacat.debug(msg);
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throw new ServiceFailure("1190", msg);
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}
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} else {
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// DEFAULT CASE: DATA (needs to be checked and completed)
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insertDataObject(object, guid, sessionData);
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}
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// For Metadata and Data, insert the system metadata into the object store too
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insertSystemMetadata(sysmeta, sessionData);
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logMetacat.debug("Returning from CrudService.create()");
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return guid;
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}
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/**
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* update an existing object with a new object. Change the system metadata
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* to reflect the changes and update it as well.
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*/
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public Identifier update(AuthToken token, Identifier guid,
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InputStream object, Identifier obsoletedGuid, SystemMetadata sysmeta)
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throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique,
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UnsupportedType, InsufficientResources, NotFound, InvalidSystemMetadata,
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NotImplemented {
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try
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{
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SessionData sessionData = getSessionData(token);
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//find the old systemmetadata (sm.old) document id (the one linked to obsoletedGuid)
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SystemMetadata sm = getSystemMetadata(token, obsoletedGuid);
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//change sm.old's obsoletedBy field
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List l = sm.getObsoletedByList();
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l.add(guid);
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sm.setObsoletedByList(l);
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//update sm.old
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updateSystemMetadata(sm, sessionData);
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//change the obsoletes field of the new systemMetadata (sm.new) to point to the id of the old one
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sysmeta.addObsolete(obsoletedGuid);
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//insert sm.new
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insertSystemMetadata(sysmeta, sessionData);
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boolean isScienceMetadata = isScienceMetadata(sysmeta);
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if(isScienceMetadata)
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{
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//update the doc
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updateDocument(object, obsoletedGuid, guid, sessionData);
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}
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else
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{
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//update a data file, not xml
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insertDataObject(object, guid, sessionData);
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}
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return guid;
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}
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catch(Exception e)
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{
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throw new ServiceFailure("1030", "Error updating document in CrudService: " + e.getMessage());
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}
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}
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/**
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* set the permission on the document
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* @param token
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* @param principal
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* @param permission
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* @param permissionType
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* @param permissionOrder
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* @return
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*/
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public void setAccess(AuthToken token, Identifier id, String principal, String permission,
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String permissionType, String permissionOrder)
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throws ServiceFailure
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{
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try
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{
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IdentifierManager im = IdentifierManager.getInstance();
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String docid = im.getLocalId(id.getValue());
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final SessionData sessionData = getSessionData(token);
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String permNum = "0";
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if(permission == "read")
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{
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permNum = "4";
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}
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else if(permission == "write")
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{
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permNum = "6";
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}
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handler.setAccess(metacatUrl, sessionData.getUserName(), docid,
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principal, permNum, permissionType, permissionOrder);
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}
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catch(Exception e)
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{
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throw new ServiceFailure("1000", "Could not set access on the document with id " + id.getValue());
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}
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}
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/**
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* Retrieve the list of objects present on the MN that match the calling
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* parameters. This method is required to support the process of Member
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* Node synchronization. At a minimum, this method should be able to
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* return a list of objects that match:
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* startTime <= SystemMetadata.dateSysMetadataModified
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* but is expected to also support date range (by also specifying endTime),
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* and should also support slicing of the matching set of records by
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* indicating the starting index of the response (where 0 is the index
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* of the first item) and the count of elements to be returned.
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*
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* If startTime or endTime is null, the query is not restricted by that parameter.
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*
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* @see http://mule1.dataone.org/ArchitectureDocs/mn_api_replication.html#MN_replication.listObjects
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* @param token
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* @param startTime
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* @param endTime
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* @param objectFormat
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* @param replicaStatus
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* @param start
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* @param count
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* @return ObjectList
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* @throws NotAuthorized
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* @throws InvalidRequest
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* @throws NotImplemented
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* @throws ServiceFailure
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* @throws InvalidToken
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*/
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public ObjectList listObjects(AuthToken token, Date startTime, Date endTime,
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ObjectFormat objectFormat, boolean replicaStatus, int start, int count)
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throws NotAuthorized, InvalidRequest, NotImplemented, ServiceFailure, InvalidToken
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{
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ObjectList ol = new ObjectList();
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final SessionData sessionData = getSessionData(token);
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try
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{
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params.clear();
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params.put("returndoctype", new String[] {"http://dataone.org/service/types/SystemMetadata/0.1"});
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params.put("qformat", new String[] {"xml"});
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params.put("returnfield", new String[] {"size", "originMemberNode",
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"identifier", "objectFormat", "dateSysMetadataModified", "checksum"});
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params.put("anyfield", new String[] {"%"});
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MetacatResultSet rs = handler.query(metacatUrl, params, sessionData.getUserName(),
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sessionData.getGroupNames(), sessionData.getId());
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List docs = rs.getDocuments();
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358
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if(count == 1000)
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{
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count = docs.size();
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}
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for(int i=start; i<count; i++)
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{
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//get the document from the results
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Document d = (Document)docs.get(i);
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ObjectFormat returnedObjectFormat = ObjectFormat.convert(d.getField("objectFormat"));
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if(objectFormat != null && !objectFormat.toString().trim().equals(returnedObjectFormat.toString().trim()))
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369
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{ //make sure the objectFormat is the one specified
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continue;
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371
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}
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Date dateSysMetadataModified = parseDate(d.getField("dateSysMetadataModified"));
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373
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int startDateComparison = 0;
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int endDateComparison = 0;
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375
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if(startTime != null)
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{
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377
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startDateComparison = dateSysMetadataModified.compareTo(startTime);
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378
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}
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379
|
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380
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if(endTime != null)
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{
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endDateComparison = dateSysMetadataModified.compareTo(endTime);
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383
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}
|
384
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|
385
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if(startDateComparison < 0 || endDateComparison > 0)
|
386
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{ //this date falls outside of the startTime and endTime params, so
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//skip it
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continue;
|
389
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}
|
390
|
|
391
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ObjectInfo info = new ObjectInfo();
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//add the fields to the info object
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Checksum cs = new Checksum();
|
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cs.setValue(d.getField("checksum"));
|
395
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info.setChecksum(cs);
|
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info.setDateSysMetadataModified(dateSysMetadataModified);
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Identifier id = new Identifier();
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id.setValue(d.getField("identifier"));
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info.setIdentifier(id);
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info.setObjectFormat(returnedObjectFormat);
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info.setSize(new Long(d.getField("size").trim()).longValue());
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//add the ObjectInfo to the ObjectList
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ol.addObjectInfo(info);
|
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//System.out.println(d.toString());
|
405
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}
|
406
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}
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407
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catch(Exception e)
|
408
|
{
|
409
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e.printStackTrace();
|
410
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throw new ServiceFailure("1580", "Error retrieving ObjectList: " + e.getMessage());
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411
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}
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412
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return ol;
|
413
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}
|
414
|
|
415
|
/**
|
416
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* Call listObjects with the default values for replicaStatus (true), start (0),
|
417
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* and count (1000).
|
418
|
* @param token
|
419
|
* @param startTime
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420
|
* @param endTime
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421
|
* @param objectFormat
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422
|
* @return
|
423
|
* @throws NotAuthorized
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424
|
* @throws InvalidRequest
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425
|
* @throws NotImplemented
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426
|
* @throws ServiceFailure
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427
|
* @throws InvalidToken
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428
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*/
|
429
|
public ObjectList listObjects(AuthToken token, Date startTime, Date endTime,
|
430
|
ObjectFormat objectFormat)
|
431
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throws NotAuthorized, InvalidRequest, NotImplemented, ServiceFailure, InvalidToken
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432
|
{
|
433
|
return listObjects(token, startTime, endTime, objectFormat, true, 0, 1000);
|
434
|
}
|
435
|
|
436
|
/**
|
437
|
* Delete a document. NOT IMPLEMENTED
|
438
|
*/
|
439
|
public Identifier delete(AuthToken token, Identifier guid)
|
440
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
441
|
NotImplemented {
|
442
|
throw new NotImplemented("1000", "This method not yet implemented.");
|
443
|
}
|
444
|
|
445
|
/**
|
446
|
* describe a document. NOT IMPLEMENTED
|
447
|
*/
|
448
|
public DescribeResponse describe(AuthToken token, Identifier guid)
|
449
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
450
|
NotImplemented {
|
451
|
throw new NotImplemented("1000", "This method not yet implemented.");
|
452
|
}
|
453
|
|
454
|
/**
|
455
|
* get a document with a specified guid.
|
456
|
*/
|
457
|
public InputStream get(AuthToken token, Identifier guid)
|
458
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
459
|
NotImplemented {
|
460
|
|
461
|
// Retrieve the session information from the AuthToken
|
462
|
// If the session is expired, then the user is 'public'
|
463
|
final SessionData sessionData = getSessionData(token);
|
464
|
|
465
|
// Look up the localId for this global identifier
|
466
|
IdentifierManager im = IdentifierManager.getInstance();
|
467
|
try {
|
468
|
final String localId = im.getLocalId(guid.getValue());
|
469
|
|
470
|
final InputStreamFromOutputStream<String> objectStream =
|
471
|
new InputStreamFromOutputStream<String>() {
|
472
|
|
473
|
@Override
|
474
|
public String produce(final OutputStream dataSink) throws Exception {
|
475
|
|
476
|
try {
|
477
|
handler.readFromMetacat(metacatUrl, null,
|
478
|
dataSink, localId, "xml",
|
479
|
sessionData.getUserName(),
|
480
|
sessionData.getGroupNames(), true, params);
|
481
|
} catch (PropertyNotFoundException e) {
|
482
|
throw new ServiceFailure("1030", e.getMessage());
|
483
|
} catch (ClassNotFoundException e) {
|
484
|
throw new ServiceFailure("1030", e.getMessage());
|
485
|
} catch (IOException e) {
|
486
|
throw new ServiceFailure("1030", e.getMessage());
|
487
|
} catch (SQLException e) {
|
488
|
throw new ServiceFailure("1030", e.getMessage());
|
489
|
} catch (McdbException e) {
|
490
|
throw new ServiceFailure("1030", e.getMessage());
|
491
|
} catch (ParseLSIDException e) {
|
492
|
throw new NotFound("1020", e.getMessage());
|
493
|
} catch (InsufficientKarmaException e) {
|
494
|
throw new NotAuthorized("1000", "Not authorized for get().");
|
495
|
}
|
496
|
|
497
|
return "Completed";
|
498
|
}
|
499
|
};
|
500
|
return objectStream;
|
501
|
|
502
|
} catch (McdbDocNotFoundException e) {
|
503
|
throw new NotFound("1020", e.getMessage());
|
504
|
}
|
505
|
}
|
506
|
|
507
|
/**
|
508
|
* get the checksum for a document. NOT IMPLEMENTED
|
509
|
*/
|
510
|
public Checksum getChecksum(AuthToken token, Identifier guid)
|
511
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
512
|
InvalidRequest, NotImplemented {
|
513
|
throw new NotImplemented("1000", "This method not yet implemented.");
|
514
|
}
|
515
|
|
516
|
/**
|
517
|
* get the checksum for a document. NOT IMPLEMENTED
|
518
|
*/
|
519
|
public Checksum getChecksum(AuthToken token, Identifier guid,
|
520
|
String checksumAlgorithm) throws InvalidToken, ServiceFailure,
|
521
|
NotAuthorized, NotFound, InvalidRequest, NotImplemented {
|
522
|
throw new NotImplemented("1000", "This method not yet implemented.");
|
523
|
}
|
524
|
|
525
|
/**
|
526
|
* get log records. NOT IMPLEMENTED
|
527
|
*/
|
528
|
public LogRecordSet getLogRecords(AuthToken token, Date fromDate, Date toDate)
|
529
|
throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
|
530
|
NotImplemented {
|
531
|
throw new NotImplemented("1000", "This method not yet implemented.");
|
532
|
}
|
533
|
|
534
|
/**
|
535
|
* get the system metadata for a document with a specified guid.
|
536
|
*/
|
537
|
public SystemMetadata getSystemMetadata(AuthToken token, Identifier guid)
|
538
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
539
|
InvalidRequest, NotImplemented {
|
540
|
|
541
|
logMetacat.debug("CrudService.getSystemMetadata - for guid: " + guid.getValue());
|
542
|
|
543
|
// Retrieve the session information from the AuthToken
|
544
|
// If the session is expired, then the user is 'public'
|
545
|
final SessionData sessionData = getSessionData(token);
|
546
|
|
547
|
// TODO: Check access control rules
|
548
|
|
549
|
try {
|
550
|
IdentifierManager im = IdentifierManager.getInstance();
|
551
|
final String localId = im.getSystemMetadataId(guid.getValue());
|
552
|
|
553
|
// Read system metadata from metacat's db
|
554
|
final InputStreamFromOutputStream<String> objectStream =
|
555
|
new InputStreamFromOutputStream<String>() {
|
556
|
|
557
|
@Override
|
558
|
public String produce(final OutputStream dataSink) throws Exception {
|
559
|
try {
|
560
|
handler.readFromMetacat(metacatUrl, null,
|
561
|
dataSink, localId, "xml",
|
562
|
sessionData.getUserName(),
|
563
|
sessionData.getGroupNames(), true, params);
|
564
|
} catch (PropertyNotFoundException e) {
|
565
|
throw new ServiceFailure("1030", e.getMessage());
|
566
|
} catch (ClassNotFoundException e) {
|
567
|
throw new ServiceFailure("1030", e.getMessage());
|
568
|
} catch (IOException e) {
|
569
|
throw new ServiceFailure("1030", e.getMessage());
|
570
|
} catch (SQLException e) {
|
571
|
throw new ServiceFailure("1030", e.getMessage());
|
572
|
} catch (McdbException e) {
|
573
|
throw new ServiceFailure("1030", e.getMessage());
|
574
|
} catch (ParseLSIDException e) {
|
575
|
throw new NotFound("1020", e.getMessage());
|
576
|
} catch (InsufficientKarmaException e) {
|
577
|
throw new NotAuthorized("1000", "Not authorized for get().");
|
578
|
}
|
579
|
|
580
|
return "Completed";
|
581
|
}
|
582
|
};
|
583
|
|
584
|
// Deserialize the xml to create a SystemMetadata object
|
585
|
SystemMetadata sysmeta = deserializeSystemMetadata(objectStream);
|
586
|
return sysmeta;
|
587
|
|
588
|
} catch (McdbDocNotFoundException e) {
|
589
|
//e.printStackTrace();
|
590
|
throw new NotFound("1000", e.getMessage());
|
591
|
}
|
592
|
}
|
593
|
|
594
|
/**
|
595
|
* parse the date in the systemMetadata
|
596
|
* @param s
|
597
|
* @return
|
598
|
* @throws Exception
|
599
|
*/
|
600
|
private Date parseDate(String s)
|
601
|
throws Exception
|
602
|
{
|
603
|
Date d = null;
|
604
|
int tIndex = s.indexOf("T");
|
605
|
int zIndex = s.indexOf("Z");
|
606
|
if(tIndex != -1 && zIndex != -1)
|
607
|
{ //parse a date that looks like 2010-05-18T21:12:54.362Z
|
608
|
//System.out.println("original date: " + s);
|
609
|
|
610
|
String date = s.substring(0, tIndex);
|
611
|
String year = date.substring(0, date.indexOf("-"));
|
612
|
String month = date.substring(date.indexOf("-") + 1, date.lastIndexOf("-"));
|
613
|
String day = date.substring(date.lastIndexOf("-") + 1, date.length());
|
614
|
/*System.out.println("date: " + "year: " + new Integer(year).intValue() +
|
615
|
" month: " + new Integer(month).intValue() + " day: " +
|
616
|
new Integer(day).intValue());
|
617
|
*/
|
618
|
String time = s.substring(tIndex + 1, zIndex);
|
619
|
String hour = time.substring(0, time.indexOf(":"));
|
620
|
String minute = time.substring(time.indexOf(":") + 1, time.lastIndexOf(":"));
|
621
|
String seconds = "00";
|
622
|
String milliseconds = "00";
|
623
|
if(time.indexOf(".") != -1)
|
624
|
{
|
625
|
seconds = time.substring(time.lastIndexOf(":") + 1, time.indexOf("."));
|
626
|
milliseconds = time.substring(time.indexOf(".") + 1, time.length());
|
627
|
}
|
628
|
/*System.out.println("time: " + "hour: " + new Integer(hour).intValue() +
|
629
|
" minute: " + new Integer(minute).intValue() + " seconds: " +
|
630
|
new Integer(seconds).intValue() + " milli: " +
|
631
|
new Integer(milliseconds).intValue());*/
|
632
|
|
633
|
//d = DateFormat.getDateTimeInstance().parse(date + " " + time);
|
634
|
Calendar c = Calendar.getInstance(TimeZone.getTimeZone("GMT-0"));
|
635
|
c.set(new Integer(year).intValue(), new Integer(month).intValue() - 1,
|
636
|
new Integer(day).intValue(), new Integer(hour).intValue(),
|
637
|
new Integer(minute).intValue(), new Integer(seconds).intValue());
|
638
|
c.set(Calendar.MILLISECOND, new Integer(milliseconds).intValue());
|
639
|
d = new Date(c.getTimeInMillis());
|
640
|
//System.out.println("d: " + d);
|
641
|
return d;
|
642
|
}
|
643
|
else
|
644
|
{ //if it's not in the expected format, try the formatter
|
645
|
return DateFormat.getDateTimeInstance().parse(s);
|
646
|
}
|
647
|
}
|
648
|
|
649
|
/*
|
650
|
* Look up the information on the session using the token provided in
|
651
|
* the AuthToken. The Session should have all relevant user information.
|
652
|
* If the session has expired or is invalid, the 'public' session will
|
653
|
* be returned, giving the user anonymous access.
|
654
|
*/
|
655
|
private static SessionData getSessionData(AuthToken token) {
|
656
|
SessionData sessionData = null;
|
657
|
String sessionId = "PUBLIC";
|
658
|
if (token != null) {
|
659
|
sessionId = token.getToken();
|
660
|
}
|
661
|
|
662
|
// if the session id is registered in SessionService, get the
|
663
|
// SessionData for it. Otherwise, use the public session.
|
664
|
if (SessionService.isSessionRegistered(sessionId)) {
|
665
|
sessionData = SessionService.getRegisteredSession(sessionId);
|
666
|
} else {
|
667
|
sessionData = SessionService.getPublicSession();
|
668
|
}
|
669
|
|
670
|
return sessionData;
|
671
|
}
|
672
|
|
673
|
/**
|
674
|
* Determine if a given object should be treated as an XML science metadata
|
675
|
* object.
|
676
|
*
|
677
|
* TODO: This test should be externalized in a configuration dictionary rather than being hardcoded.
|
678
|
*
|
679
|
* @param sysmeta the SystemMetadata describig the object
|
680
|
* @return true if the object should be treated as science metadata
|
681
|
*/
|
682
|
private boolean isScienceMetadata(SystemMetadata sysmeta) {
|
683
|
boolean scimeta = false;
|
684
|
switch (sysmeta.getObjectFormat()) {
|
685
|
case EML_2_1_0: scimeta = true; break;
|
686
|
case EML_2_0_1: scimeta = true; break;
|
687
|
case EML_2_0_0: scimeta = true; break;
|
688
|
case FGDC_STD_001_1_1999: scimeta = true; break;
|
689
|
case FGDC_STD_001_1998: scimeta = true; break;
|
690
|
case NCML_2_2: scimeta = true; break;
|
691
|
}
|
692
|
|
693
|
return scimeta;
|
694
|
}
|
695
|
|
696
|
/**
|
697
|
* insert a data doc
|
698
|
* @param object
|
699
|
* @param guid
|
700
|
* @param sessionData
|
701
|
* @throws ServiceFailure
|
702
|
*/
|
703
|
private void insertDataObject(InputStream object, Identifier guid,
|
704
|
SessionData sessionData) throws ServiceFailure {
|
705
|
|
706
|
String username = sessionData.getUserName();
|
707
|
String[] groups = sessionData.getGroupNames();
|
708
|
|
709
|
// generate guid/localId pair for object
|
710
|
logMetacat.debug("Generating a guid/localId mapping");
|
711
|
IdentifierManager im = IdentifierManager.getInstance();
|
712
|
String localId = im.generateLocalId(guid.getValue(), 1);
|
713
|
|
714
|
try {
|
715
|
logMetacat.debug("Case DATA: starting to write to disk.");
|
716
|
if (DocumentImpl.getDataFileLockGrant(localId)) {
|
717
|
|
718
|
// Save the data file to disk using "localId" as the name
|
719
|
try {
|
720
|
String datafilepath = PropertyService.getProperty("application.datafilepath");
|
721
|
|
722
|
File dataDirectory = new File(datafilepath);
|
723
|
dataDirectory.mkdirs();
|
724
|
|
725
|
File newFile = writeStreamToFile(dataDirectory, localId, object);
|
726
|
|
727
|
// TODO: Check that the file size matches SystemMetadata
|
728
|
// long size = newFile.length();
|
729
|
// if (size == 0) {
|
730
|
// throw new IOException("Uploaded file is 0 bytes!");
|
731
|
// }
|
732
|
|
733
|
// Register the file in the database (which generates an exception
|
734
|
// if the localId is not acceptable or other untoward things happen
|
735
|
try {
|
736
|
logMetacat.debug("Registering document...");
|
737
|
System.out.println("inserting data object: localId: " + localId);
|
738
|
DocumentImpl.registerDocument(localId, "BIN", localId,
|
739
|
username, groups);
|
740
|
logMetacat.debug("Registration step completed.");
|
741
|
} catch (SQLException e) {
|
742
|
//newFile.delete();
|
743
|
logMetacat.debug("SQLE: " + e.getMessage());
|
744
|
e.printStackTrace(System.out);
|
745
|
throw new ServiceFailure("1190", "Registration failed: " + e.getMessage());
|
746
|
} catch (AccessionNumberException e) {
|
747
|
//newFile.delete();
|
748
|
logMetacat.debug("ANE: " + e.getMessage());
|
749
|
e.printStackTrace(System.out);
|
750
|
throw new ServiceFailure("1190", "Registration failed: " + e.getMessage());
|
751
|
} catch (Exception e) {
|
752
|
//newFile.delete();
|
753
|
logMetacat.debug("Exception: " + e.getMessage());
|
754
|
e.printStackTrace(System.out);
|
755
|
throw new ServiceFailure("1190", "Registration failed: " + e.getMessage());
|
756
|
}
|
757
|
|
758
|
logMetacat.debug("Logging the creation event.");
|
759
|
EventLog.getInstance().log(metacatUrl,
|
760
|
username, localId, "create");
|
761
|
|
762
|
// Schedule replication for this data file
|
763
|
logMetacat.debug("Scheduling replication.");
|
764
|
ForceReplicationHandler frh = new ForceReplicationHandler(
|
765
|
localId, "insert", false, null);
|
766
|
|
767
|
} catch (PropertyNotFoundException e) {
|
768
|
throw new ServiceFailure("1190", "Could not lock file for writing:" + e.getMessage());
|
769
|
}
|
770
|
|
771
|
}
|
772
|
} catch (Exception e) {
|
773
|
// Could not get a lock on the document, so we can not update the file now
|
774
|
throw new ServiceFailure("1190", "Failed to lock file: " + e.getMessage());
|
775
|
}
|
776
|
}
|
777
|
|
778
|
/**
|
779
|
* write a file to a stream
|
780
|
* @param dir
|
781
|
* @param fileName
|
782
|
* @param data
|
783
|
* @return
|
784
|
* @throws ServiceFailure
|
785
|
*/
|
786
|
private File writeStreamToFile(File dir, String fileName, InputStream data)
|
787
|
throws ServiceFailure {
|
788
|
|
789
|
File newFile = new File(dir, fileName);
|
790
|
logMetacat.debug("Filename for write is: " + newFile.getAbsolutePath());
|
791
|
|
792
|
try {
|
793
|
if (newFile.createNewFile()) {
|
794
|
// write data stream to desired file
|
795
|
OutputStream os = new FileOutputStream(newFile);
|
796
|
long length = IOUtils.copyLarge(data, os);
|
797
|
os.flush();
|
798
|
os.close();
|
799
|
} else {
|
800
|
logMetacat.debug("File creation failed, or file already exists.");
|
801
|
throw new ServiceFailure("1190", "File already exists: " + fileName);
|
802
|
}
|
803
|
} catch (FileNotFoundException e) {
|
804
|
logMetacat.debug("FNF: " + e.getMessage());
|
805
|
throw new ServiceFailure("1190", "File not found: " + fileName + " "
|
806
|
+ e.getMessage());
|
807
|
} catch (IOException e) {
|
808
|
logMetacat.debug("IOE: " + e.getMessage());
|
809
|
throw new ServiceFailure("1190", "File was not written: " + fileName
|
810
|
+ " " + e.getMessage());
|
811
|
}
|
812
|
|
813
|
return newFile;
|
814
|
}
|
815
|
|
816
|
/**
|
817
|
* insert a systemMetadata doc
|
818
|
*/
|
819
|
private void insertSystemMetadata(SystemMetadata sysmeta, SessionData sessionData)
|
820
|
throws ServiceFailure {
|
821
|
logMetacat.debug("Starting to insert SystemMetadata...");
|
822
|
|
823
|
// generate guid/localId pair for sysmeta
|
824
|
Identifier sysMetaGuid = new Identifier();
|
825
|
sysMetaGuid.setValue(DocumentUtil.generateDocumentId(1));
|
826
|
sysmeta.setDateSysMetadataModified(new Date());
|
827
|
|
828
|
String xml = new String(serializeSystemMetadata(sysmeta).toByteArray());
|
829
|
String localId = insertDocument(xml, sysMetaGuid, sessionData);
|
830
|
//insert the system metadata doc id into the identifiers table to
|
831
|
//link it to the data or metadata document
|
832
|
IdentifierManager.getInstance().createSystemMetadataMapping(sysmeta.getIdentifier().getValue(), sysMetaGuid.getValue());
|
833
|
}
|
834
|
|
835
|
/**
|
836
|
* update a systemMetadata doc
|
837
|
*/
|
838
|
private void updateSystemMetadata(SystemMetadata sm, SessionData sessionData)
|
839
|
throws ServiceFailure
|
840
|
{
|
841
|
try
|
842
|
{
|
843
|
String smId = IdentifierManager.getInstance().getSystemMetadataId(sm.getIdentifier().getValue());
|
844
|
sm.setDateSysMetadataModified(new Date());
|
845
|
String xml = new String(serializeSystemMetadata(sm).toByteArray());
|
846
|
Identifier id = new Identifier();
|
847
|
id.setValue(smId);
|
848
|
String localId = updateDocument(xml, id, null, sessionData);
|
849
|
IdentifierManager.getInstance().updateSystemMetadataMapping(sm.getIdentifier().getValue(), localId);
|
850
|
}
|
851
|
catch(Exception e)
|
852
|
{
|
853
|
throw new ServiceFailure("1030", "Error updating system metadata: " + e.getMessage());
|
854
|
}
|
855
|
}
|
856
|
|
857
|
/**
|
858
|
* insert a document
|
859
|
* NOTE: this method shouldn't be used from the update or create() methods.
|
860
|
* we shouldn't be putting the science metadata or data objects into memory.
|
861
|
*/
|
862
|
private String insertDocument(String xml, Identifier guid, SessionData sessionData)
|
863
|
throws ServiceFailure
|
864
|
{
|
865
|
return insertOrUpdateDocument(xml, guid, sessionData, "insert");
|
866
|
}
|
867
|
|
868
|
/**
|
869
|
* insert a document from a stream
|
870
|
*/
|
871
|
private String insertDocument(InputStream is, Identifier guid, SessionData sessionData)
|
872
|
throws IOException, ServiceFailure
|
873
|
{
|
874
|
//HACK: change this eventually. we should not be converting the stream to a string
|
875
|
String xml = IOUtils.toString(is);
|
876
|
return insertDocument(xml, guid, sessionData);
|
877
|
}
|
878
|
|
879
|
/**
|
880
|
* update a document
|
881
|
* NOTE: this method shouldn't be used from the update or create() methods.
|
882
|
* we shouldn't be putting the science metadata or data objects into memory.
|
883
|
*/
|
884
|
private String updateDocument(String xml, Identifier obsoleteGuid, Identifier guid, SessionData sessionData)
|
885
|
throws ServiceFailure
|
886
|
{
|
887
|
return insertOrUpdateDocument(xml, obsoleteGuid, sessionData, "update");
|
888
|
}
|
889
|
|
890
|
/**
|
891
|
* update a document from a stream
|
892
|
*/
|
893
|
private String updateDocument(InputStream is, Identifier obsoleteGuid, Identifier guid, SessionData sessionData)
|
894
|
throws IOException, ServiceFailure
|
895
|
{
|
896
|
//HACK: change this eventually. we should not be converting the stream to a string
|
897
|
String xml = IOUtils.toString(is);
|
898
|
String localId = updateDocument(xml, obsoleteGuid, guid, sessionData);
|
899
|
IdentifierManager im = IdentifierManager.getInstance();
|
900
|
if(guid != null)
|
901
|
{
|
902
|
im.createMapping(guid.getValue(), localId);
|
903
|
}
|
904
|
return localId;
|
905
|
}
|
906
|
|
907
|
/**
|
908
|
* insert a document, return the id of the document that was inserted
|
909
|
*/
|
910
|
private String insertOrUpdateDocument(String xml, Identifier guid, SessionData sessionData, String insertOrUpdate)
|
911
|
throws ServiceFailure {
|
912
|
logMetacat.debug("Starting to insert xml document...");
|
913
|
IdentifierManager im = IdentifierManager.getInstance();
|
914
|
|
915
|
// generate guid/localId pair for sysmeta
|
916
|
String localId = null;
|
917
|
if(insertOrUpdate.equals("insert"))
|
918
|
{
|
919
|
localId = im.generateLocalId(guid.getValue(), 1);
|
920
|
}
|
921
|
else
|
922
|
{
|
923
|
//localid should already exist in the identifier table, so just find it
|
924
|
try
|
925
|
{
|
926
|
localId = im.getLocalId(guid.getValue());
|
927
|
//increment the revision
|
928
|
String docid = localId.substring(0, localId.lastIndexOf("."));
|
929
|
String revS = localId.substring(localId.lastIndexOf(".") + 1, localId.length());
|
930
|
int rev = new Integer(revS).intValue();
|
931
|
rev++;
|
932
|
docid = docid + "." + rev;
|
933
|
localId = docid;
|
934
|
}
|
935
|
catch(McdbDocNotFoundException e)
|
936
|
{
|
937
|
throw new ServiceFailure("1030", "CrudService.insertOrUpdateDocument(): " +
|
938
|
"guid " + guid.getValue() + " should have been in the identifier table, but it wasn't: " + e.getMessage());
|
939
|
}
|
940
|
}
|
941
|
logMetacat.debug("Metadata guid|localId: " + guid.getValue() + "|" +
|
942
|
localId);
|
943
|
|
944
|
String[] action = new String[1];
|
945
|
action[0] = insertOrUpdate;
|
946
|
params.put("action", action);
|
947
|
String[] docid = new String[1];
|
948
|
docid[0] = localId;
|
949
|
params.put("docid", docid);
|
950
|
String[] doctext = new String[1];
|
951
|
doctext[0] = xml;
|
952
|
logMetacat.debug(doctext[0]);
|
953
|
params.put("doctext", doctext);
|
954
|
|
955
|
// TODO: refactor handleInsertOrUpdateAction() to not output XML directly
|
956
|
// onto output stream, or alternatively, capture that and parse it to
|
957
|
// generate the right exceptions
|
958
|
//ByteArrayOutputStream output = new ByteArrayOutputStream();
|
959
|
//PrintWriter pw = new PrintWriter(output);
|
960
|
String result = handler.handleInsertOrUpdateAction(metacatUrl, null,
|
961
|
null, params, sessionData.getUserName(), sessionData.getGroupNames());
|
962
|
//String outputS = new String(output.toByteArray());
|
963
|
logMetacat.debug("CrudService.insertDocument - Metacat returned: " + result);
|
964
|
// if (!(outputS.indexOf("<success>") > 0 && outputS.indexOf(localId) > 0)) {
|
965
|
// throw new ServiceFailure(1190, outputS);
|
966
|
// }
|
967
|
logMetacat.debug("Finsished inserting xml document with id " + localId);
|
968
|
return localId;
|
969
|
}
|
970
|
|
971
|
/**
|
972
|
* serialize a system metadata doc
|
973
|
* @param sysmeta
|
974
|
* @return
|
975
|
* @throws ServiceFailure
|
976
|
*/
|
977
|
public static ByteArrayOutputStream serializeSystemMetadata(SystemMetadata sysmeta)
|
978
|
throws ServiceFailure {
|
979
|
IBindingFactory bfact;
|
980
|
ByteArrayOutputStream sysmetaOut = null;
|
981
|
try {
|
982
|
bfact = BindingDirectory.getFactory(SystemMetadata.class);
|
983
|
IMarshallingContext mctx = bfact.createMarshallingContext();
|
984
|
sysmetaOut = new ByteArrayOutputStream();
|
985
|
mctx.marshalDocument(sysmeta, "UTF-8", null, sysmetaOut);
|
986
|
} catch (JiBXException e) {
|
987
|
throw new ServiceFailure("1190", "Failed to serialize and insert SystemMetadata: " + e.getMessage());
|
988
|
}
|
989
|
|
990
|
return sysmetaOut;
|
991
|
}
|
992
|
|
993
|
/**
|
994
|
* deserialize a system metadata doc
|
995
|
* @param xml
|
996
|
* @return
|
997
|
* @throws ServiceFailure
|
998
|
*/
|
999
|
public static SystemMetadata deserializeSystemMetadata(InputStream xml)
|
1000
|
throws ServiceFailure {
|
1001
|
try {
|
1002
|
IBindingFactory bfact = BindingDirectory.getFactory(SystemMetadata.class);
|
1003
|
IUnmarshallingContext uctx = bfact.createUnmarshallingContext();
|
1004
|
SystemMetadata sysmeta = (SystemMetadata) uctx.unmarshalDocument(xml, null);
|
1005
|
return sysmeta;
|
1006
|
} catch (JiBXException e) {
|
1007
|
throw new ServiceFailure("1190", "Failed to serialize and insert SystemMetadata: " + e.getMessage());
|
1008
|
}
|
1009
|
}
|
1010
|
}
|