| 1 |
2732
|
sgarg
|
/**
|
| 2 |
|
|
* '$RCSfile$'
|
| 3 |
|
|
* Purpose: A Class that tracks sessions for MetaCatServlet users.
|
| 4 |
|
|
* Copyright: 2000 Regents of the University of California and the
|
| 5 |
|
|
* National Center for Ecological Analysis and Synthesis
|
| 6 |
|
|
* Authors: Matt Jones
|
| 7 |
|
|
*
|
| 8 |
|
|
* '$Author$'
|
| 9 |
|
|
* '$Date$'
|
| 10 |
|
|
* '$Revision$'
|
| 11 |
|
|
*
|
| 12 |
|
|
* This program is free software; you can redistribute it and/or modify
|
| 13 |
|
|
* it under the terms of the GNU General Public License as published by
|
| 14 |
|
|
* the Free Software Foundation; either version 2 of the License, or
|
| 15 |
|
|
* (at your option) any later version.
|
| 16 |
|
|
*
|
| 17 |
|
|
* This program is distributed in the hope that it will be useful,
|
| 18 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 19 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 20 |
|
|
* GNU General Public License for more details.
|
| 21 |
|
|
*
|
| 22 |
|
|
* You should have received a copy of the GNU General Public License
|
| 23 |
|
|
* along with this program; if not, write to the Free Software
|
| 24 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 25 |
|
|
*/
|
| 26 |
|
|
|
| 27 |
|
|
package edu.ucsb.nceas.metacat;
|
| 28 |
|
|
|
| 29 |
|
|
import java.sql.PreparedStatement;
|
| 30 |
|
|
import java.sql.ResultSet;
|
| 31 |
|
|
import java.sql.SQLException;
|
| 32 |
|
|
import java.util.TimerTask;
|
| 33 |
2758
|
sgarg
|
import java.util.Vector;
|
| 34 |
|
|
import java.util.Iterator;
|
| 35 |
2732
|
sgarg
|
|
| 36 |
5015
|
daigle
|
import edu.ucsb.nceas.metacat.database.DBConnection;
|
| 37 |
|
|
import edu.ucsb.nceas.metacat.database.DBConnectionPool;
|
| 38 |
|
|
import edu.ucsb.nceas.metacat.database.DatabaseService;
|
| 39 |
5030
|
daigle
|
import edu.ucsb.nceas.metacat.properties.PropertyService;
|
| 40 |
4698
|
daigle
|
import edu.ucsb.nceas.metacat.util.MetacatUtil;
|
| 41 |
4080
|
daigle
|
|
| 42 |
2732
|
sgarg
|
import org.apache.log4j.Logger;
|
| 43 |
|
|
|
| 44 |
|
|
public class IndexingTimerTask extends TimerTask{
|
| 45 |
|
|
|
| 46 |
|
|
private Logger logMetacat = Logger.getLogger(IndexingTimerTask.class);
|
| 47 |
|
|
|
| 48 |
|
|
int count = 0;
|
| 49 |
|
|
|
| 50 |
|
|
/*
|
| 51 |
|
|
* Run a separate thread to build the XML index for this document. This
|
| 52 |
|
|
* thread is run asynchronously in order to more quickly return control to
|
| 53 |
|
|
* the submitting user. The run method checks to see if the document has
|
| 54 |
|
|
* been fully inserted before trying to update the xml_index table.
|
| 55 |
|
|
*/
|
| 56 |
|
|
public void run()
|
| 57 |
|
|
{
|
| 58 |
|
|
DBConnection dbConn = null;
|
| 59 |
|
|
int serialNumber = 0;
|
| 60 |
|
|
try{
|
| 61 |
|
|
logMetacat.warn("Running indexing timer task");
|
| 62 |
|
|
|
| 63 |
2759
|
sgarg
|
dbConn = DBConnectionPool.getDBConnection("IndexingThread");
|
| 64 |
2732
|
sgarg
|
serialNumber = dbConn.getCheckOutSerialNumber();
|
| 65 |
4698
|
daigle
|
Vector indexNamespaces = MetacatUtil.getOptionList(PropertyService.getProperty("xml.indexNamespaces"));
|
| 66 |
2758
|
sgarg
|
String nonJoinCriteria = "b.docid is NULL";
|
| 67 |
|
|
boolean first = true;
|
| 68 |
|
|
|
| 69 |
|
|
if(indexNamespaces != null && !indexNamespaces.isEmpty()){
|
| 70 |
|
|
Iterator it = indexNamespaces.iterator();
|
| 71 |
|
|
while(it.hasNext()){
|
| 72 |
|
|
if(first){
|
| 73 |
|
|
nonJoinCriteria = nonJoinCriteria + " AND (";
|
| 74 |
|
|
nonJoinCriteria = nonJoinCriteria
|
| 75 |
|
|
+ " a.doctype like '"
|
| 76 |
|
|
+ it.next()
|
| 77 |
|
|
+ "'";
|
| 78 |
|
|
|
| 79 |
|
|
first = false;
|
| 80 |
|
|
} else {
|
| 81 |
|
|
nonJoinCriteria = nonJoinCriteria + " OR ";
|
| 82 |
|
|
nonJoinCriteria = nonJoinCriteria
|
| 83 |
|
|
+ " a.doctype like '"
|
| 84 |
|
|
+ it.next()
|
| 85 |
|
|
+ "'";
|
| 86 |
|
|
}
|
| 87 |
|
|
}
|
| 88 |
|
|
nonJoinCriteria = nonJoinCriteria + ")";
|
| 89 |
|
|
} else {
|
| 90 |
|
|
// if no namespaces are defined in metacat.properties then return
|
| 91 |
|
|
return;
|
| 92 |
|
|
}
|
| 93 |
|
|
|
| 94 |
2732
|
sgarg
|
String xmlDocumentsCheck =
|
| 95 |
5319
|
jones
|
DatabaseService.getInstance().getDBAdapter().getLeftJoinQuery("a.docid, a.rev", "xml_documents",
|
| 96 |
2780
|
sgarg
|
"xml_index", "a.docid = b.docid", nonJoinCriteria);
|
| 97 |
2758
|
sgarg
|
|
| 98 |
|
|
PreparedStatement xmlDocCheck = dbConn.prepareStatement(xmlDocumentsCheck);
|
| 99 |
2732
|
sgarg
|
|
| 100 |
|
|
// Increase usage count
|
| 101 |
|
|
dbConn.increaseUsageCount(1);
|
| 102 |
|
|
xmlDocCheck.execute();
|
| 103 |
|
|
ResultSet rs = xmlDocCheck.getResultSet();
|
| 104 |
|
|
|
| 105 |
|
|
boolean tableHasRows = rs.next();
|
| 106 |
|
|
while (tableHasRows) {
|
| 107 |
|
|
String docid = rs.getString(1);
|
| 108 |
|
|
String rev = rs.getString(2);
|
| 109 |
|
|
|
| 110 |
2734
|
sgarg
|
IndexingQueue.getInstance().add(docid, rev);
|
| 111 |
2732
|
sgarg
|
|
| 112 |
|
|
tableHasRows = rs.next();
|
| 113 |
|
|
}
|
| 114 |
|
|
|
| 115 |
|
|
rs.close();
|
| 116 |
|
|
xmlDocCheck.close();
|
| 117 |
|
|
|
| 118 |
|
|
} catch (SQLException se){
|
| 119 |
|
|
se.printStackTrace();
|
| 120 |
|
|
|
| 121 |
|
|
} catch (Exception e){
|
| 122 |
|
|
e.printStackTrace();
|
| 123 |
|
|
|
| 124 |
|
|
}finally {
|
| 125 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
| 126 |
|
|
}
|
| 127 |
|
|
|
| 128 |
|
|
logMetacat.warn("Indexing timer task returning");
|
| 129 |
|
|
count++;
|
| 130 |
|
|
}
|
| 131 |
|
|
}
|