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15
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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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* Purpose: A Class that represents an XML node and its contents
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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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15
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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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15
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jones
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*/
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75
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jones
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package edu.ucsb.nceas.metacat;
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15
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jones
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29 |
6020
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leinfelder
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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31 |
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import java.sql.SQLException;
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import java.util.Enumeration;
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15
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jones
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import java.util.Hashtable;
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6020
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leinfelder
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35 |
2663
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sgarg
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import org.apache.log4j.Logger;
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36 |
461
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bojilova
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import org.xml.sax.SAXException;
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15
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jones
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38 |
5015
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daigle
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import edu.ucsb.nceas.metacat.database.DBConnection;
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import edu.ucsb.nceas.metacat.database.DBConnectionPool;
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import edu.ucsb.nceas.metacat.database.DatabaseService;
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747
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bojilova
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2358
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sgarg
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/**
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137
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jones
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* A Class that represents an XML node and its contents and
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31
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jones
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* can write its own representation to a database connection
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*/
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137
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jones
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public class DBSAXNode extends BasicNode {
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15
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jones
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1217
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tao
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private DBConnection connection;
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176
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jones
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private DBSAXNode parentNode;
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2663
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sgarg
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private Logger logMetacat = Logger.getLogger(DBSAXNode.class);
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15
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jones
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52 |
2358
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sgarg
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/**
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136
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jones
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* Construct a new node instance for DOCUMENT nodes
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133
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jones
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*
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* @param conn the JDBC Connection to which all information is written
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*/
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1217
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tao
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public DBSAXNode (DBConnection conn, String docid) throws SAXException {
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747
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bojilova
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408
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jones
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super();
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1217
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tao
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this.connection = conn;
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176
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jones
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this.parentNode = null;
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457
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bojilova
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writeChildNodeToDB("DOCUMENT", null, null, docid);
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758
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bojilova
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updateRootNodeID(getNodeID());
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136
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jones
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}
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2358
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sgarg
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/**
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136
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jones
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* Construct a new node instance for ELEMENT nodes
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*
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* @param conn the JDBC Connection to which all information is written
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* @param tagname the name of the node
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* @param parentNode the parent node for this node being created
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*/
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1217
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tao
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public DBSAXNode (DBConnection conn, String qName, String lName,
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2358
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sgarg
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DBSAXNode parentNode, long rootnodeid,
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String docid, String doctype)
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826
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bojilova
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throws SAXException {
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21
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jones
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826
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bojilova
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super(lName);
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1217
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tao
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this.connection = conn;
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747
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bojilova
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this.parentNode = parentNode;
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136
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jones
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setParentID(parentNode.getNodeID());
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457
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bojilova
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setRootNodeID(rootnodeid);
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setDocID(docid);
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136
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jones
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setNodeIndex(parentNode.incChildNum());
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826
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bojilova
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writeChildNodeToDB("ELEMENT", qName, null, docid);
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471
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bojilova
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//No writing XML Index from here. New Thread used instead.
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//updateNodeIndex(docid, doctype);
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133
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jones
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}
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2358
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sgarg
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/**
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1803
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tao
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* Construct a new node instance for DTD nodes
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* This Node will write docname, publicId and systemId into db. Only
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* handle systemid existed.(external dtd)
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*
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* @param conn the JDBC Connection to which all information is written
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* @param tagname the name of the node
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* @param parentNode the parent node for this node being created
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*/
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2358
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sgarg
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public DBSAXNode (DBConnection conn, String docName, String publicId,
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String systemId, DBSAXNode parentNode, long rootnodeid,
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String docid) throws SAXException
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1803
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tao
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{
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super();
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this.connection = conn;
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this.parentNode = parentNode;
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setParentID(parentNode.getNodeID());
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setRootNodeID(rootnodeid);
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setDocID(docid);
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// insert dtd node only for external dtd definiation
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if (systemId != null)
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{
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//write docname to DB
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if (docName != null)
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{
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setNodeIndex(parentNode.incChildNum());
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writeDTDNodeToDB(DocumentImpl.DOCNAME, docName, docid);
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}
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//write publicId to DB
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if (publicId != null)
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{
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setNodeIndex(parentNode.incChildNum());
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writeDTDNodeToDB(DocumentImpl.PUBLICID, publicId, docid);
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124 |
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}
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125 |
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//write systemId to DB
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setNodeIndex(parentNode.incChildNum());
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127 |
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writeDTDNodeToDB(DocumentImpl.SYSTEMID, systemId, docid);
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128 |
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}
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129 |
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}
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130 |
5208
|
daigle
|
|
131 |
133
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jones
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/** creates SQL code and inserts new node into DB connection */
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132 |
1416
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tao
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public long writeChildNodeToDB(String nodetype, String nodename,
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133 |
2358
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sgarg
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String data, String docid)
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134 |
5208
|
daigle
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throws SAXException {
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135 |
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String limitedData = null;
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136 |
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int leftover = 0;
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137 |
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if (data != null) {
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138 |
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leftover = data.length();
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139 |
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}
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140 |
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int offset = 0;
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141 |
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boolean moredata = true;
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142 |
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long endNodeId = -1;
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143 |
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144 |
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// This loop deals with the case where there are more characters
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145 |
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// than can fit in a single database text field (limit is
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146 |
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// MAXDATACHARS). If the text to be inserted exceeds MAXDATACHARS,
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147 |
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// write a series of nodes that are MAXDATACHARS long, and then the
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148 |
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// final node contains the remainder
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149 |
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while (moredata) {
|
150 |
5311
|
daigle
|
if (leftover > (DBSAXHandler.MAXDATACHARS)) {
|
151 |
5208
|
daigle
|
limitedData = data.substring(offset, DBSAXHandler.MAXDATACHARS);
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152 |
5311
|
daigle
|
leftover -= (DBSAXHandler.MAXDATACHARS - 1);
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153 |
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offset += (DBSAXHandler.MAXDATACHARS - 1);
|
154 |
5208
|
daigle
|
} else {
|
155 |
5311
|
daigle
|
if (data != null) {
|
156 |
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limitedData = data.substring(offset, offset + leftover);
|
157 |
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} else {
|
158 |
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limitedData = null;
|
159 |
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}
|
160 |
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moredata = false;
|
161 |
5208
|
daigle
|
}
|
162 |
5311
|
daigle
|
|
163 |
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endNodeId = writeChildNodeToDBDataLimited(nodetype, nodename, limitedData, docid);
|
164 |
5208
|
daigle
|
}
|
165 |
|
|
|
166 |
|
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return endNodeId;
|
167 |
|
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}
|
168 |
|
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|
169 |
|
|
/** creates SQL code and inserts new node into DB connection */
|
170 |
|
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public long writeChildNodeToDBDataLimited(String nodetype, String nodename,
|
171 |
|
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String data, String docid)
|
172 |
2358
|
sgarg
|
throws SAXException
|
173 |
1416
|
tao
|
{
|
174 |
|
|
long nid = -1;
|
175 |
2358
|
sgarg
|
try
|
176 |
1416
|
tao
|
{
|
177 |
2358
|
sgarg
|
|
178 |
133
|
jones
|
PreparedStatement pstmt;
|
179 |
6012
|
leinfelder
|
|
180 |
133
|
jones
|
if (nodetype == "DOCUMENT") {
|
181 |
1217
|
tao
|
pstmt = connection.prepareStatement(
|
182 |
133
|
jones
|
"INSERT INTO xml_nodes " +
|
183 |
826
|
bojilova
|
"(nodetype, nodename, nodeprefix, docid) " +
|
184 |
|
|
"VALUES (?, ?, ?, ?)");
|
185 |
2358
|
sgarg
|
|
186 |
5208
|
daigle
|
logMetacat.debug("DBSAXNode.writeChildNodeToDBDataLimited - inserting doc name: " + nodename);
|
187 |
133
|
jones
|
} else {
|
188 |
6020
|
leinfelder
|
pstmt = connection.prepareStatement(
|
189 |
|
|
"INSERT INTO xml_nodes " +
|
190 |
|
|
"(nodetype, nodename, nodeprefix, docid, " +
|
191 |
|
|
"rootnodeid, parentnodeid, nodedata, nodeindex) " +
|
192 |
|
|
"VALUES (?, ?, ?, ?, ?, ?, ?, ?)");
|
193 |
133
|
jones
|
}
|
194 |
6020
|
leinfelder
|
|
195 |
|
|
// Increase DBConnection usage count
|
196 |
|
|
connection.increaseUsageCount(1);
|
197 |
|
|
|
198 |
133
|
jones
|
// Bind the values to the query
|
199 |
758
|
bojilova
|
pstmt.setString(1, nodetype);
|
200 |
826
|
bojilova
|
int idx;
|
201 |
|
|
if ( nodename != null && (idx = nodename.indexOf(":")) != -1 ) {
|
202 |
|
|
pstmt.setString(2, nodename.substring(idx+1));
|
203 |
|
|
pstmt.setString(3, nodename.substring(0,idx));
|
204 |
|
|
} else {
|
205 |
|
|
pstmt.setString(2, nodename);
|
206 |
|
|
pstmt.setString(3, null);
|
207 |
|
|
}
|
208 |
|
|
pstmt.setString(4, docid);
|
209 |
5208
|
daigle
|
if (nodetype != "DOCUMENT") {
|
210 |
133
|
jones
|
if (nodetype == "ELEMENT") {
|
211 |
826
|
bojilova
|
pstmt.setLong(5, getRootNodeID());
|
212 |
|
|
pstmt.setLong(6, getParentID());
|
213 |
|
|
pstmt.setString(7, data);
|
214 |
|
|
pstmt.setInt(8, getNodeIndex());
|
215 |
133
|
jones
|
} else {
|
216 |
826
|
bojilova
|
pstmt.setLong(5, getRootNodeID());
|
217 |
|
|
pstmt.setLong(6, getNodeID());
|
218 |
|
|
pstmt.setString(7, data);
|
219 |
|
|
pstmt.setInt(8, incChildNum());
|
220 |
72
|
bojilova
|
}
|
221 |
133
|
jones
|
}
|
222 |
|
|
// Do the insertion
|
223 |
5208
|
daigle
|
logMetacat.debug("DBSAXNode.writeChildNodeToDBDataLimited - SQL insert: " + pstmt.toString());
|
224 |
133
|
jones
|
pstmt.execute();
|
225 |
|
|
pstmt.close();
|
226 |
758
|
bojilova
|
|
227 |
|
|
// get the generated unique id afterward
|
228 |
5319
|
jones
|
nid = DatabaseService.getInstance().getDBAdapter().getUniqueID(connection.getConnections(), "xml_nodes");
|
229 |
5208
|
daigle
|
//should increase connection usage!!!!!!
|
230 |
2358
|
sgarg
|
|
231 |
408
|
jones
|
if (nodetype.equals("DOCUMENT")) {
|
232 |
|
|
// Record the root node id that was generated from the database
|
233 |
|
|
setRootNodeID(nid);
|
234 |
|
|
}
|
235 |
|
|
|
236 |
177
|
jones
|
if (nodetype.equals("DOCUMENT") || nodetype.equals("ELEMENT")) {
|
237 |
176
|
jones
|
|
238 |
177
|
jones
|
// Record the node id that was generated from the database
|
239 |
|
|
setNodeID(nid);
|
240 |
176
|
jones
|
|
241 |
177
|
jones
|
// Record the node type that was passed to the method
|
242 |
|
|
setNodeType(nodetype);
|
243 |
|
|
|
244 |
|
|
}
|
245 |
|
|
|
246 |
5208
|
daigle
|
} catch (SQLException sqle) {
|
247 |
|
|
logMetacat.error("DBSAXNode.writeChildNodeToDBDataLimited - SQL error inserting node: " +
|
248 |
|
|
"(" + nodetype + ", " + nodename + ", " + data + ") : " + sqle.getMessage());
|
249 |
|
|
sqle.printStackTrace(System.err);
|
250 |
|
|
throw new SAXException(sqle.getMessage());
|
251 |
110
|
bojilova
|
}
|
252 |
1416
|
tao
|
return nid;
|
253 |
133
|
jones
|
}
|
254 |
110
|
bojilova
|
|
255 |
2358
|
sgarg
|
/**
|
256 |
758
|
bojilova
|
* update rootnodeid=nodeid for 'DOCUMENT' type of nodes only
|
257 |
|
|
*/
|
258 |
|
|
public void updateRootNodeID(long nodeid) throws SAXException {
|
259 |
|
|
try {
|
260 |
|
|
PreparedStatement pstmt;
|
261 |
1217
|
tao
|
pstmt = connection.prepareStatement(
|
262 |
758
|
bojilova
|
"UPDATE xml_nodes set rootnodeid = ? " +
|
263 |
|
|
"WHERE nodeid = ?");
|
264 |
1217
|
tao
|
// Increase DBConnection usage count
|
265 |
|
|
connection.increaseUsageCount(1);
|
266 |
758
|
bojilova
|
|
267 |
|
|
// Bind the values to the query
|
268 |
|
|
pstmt.setLong(1, nodeid);
|
269 |
|
|
pstmt.setLong(2, nodeid);
|
270 |
|
|
// Do the update
|
271 |
|
|
pstmt.execute();
|
272 |
|
|
pstmt.close();
|
273 |
|
|
} catch (SQLException e) {
|
274 |
2358
|
sgarg
|
System.out.println("Error in DBSaxNode.updateRootNodeID: " +
|
275 |
758
|
bojilova
|
e.getMessage());
|
276 |
|
|
throw new SAXException(e.getMessage());
|
277 |
|
|
}
|
278 |
|
|
}
|
279 |
|
|
|
280 |
2358
|
sgarg
|
/**
|
281 |
|
|
* creates SQL code to put nodename for the document node
|
282 |
|
|
* into DB connection
|
283 |
133
|
jones
|
*/
|
284 |
461
|
bojilova
|
public void writeNodename(String nodename) throws SAXException {
|
285 |
133
|
jones
|
try {
|
286 |
|
|
PreparedStatement pstmt;
|
287 |
1217
|
tao
|
pstmt = connection.prepareStatement(
|
288 |
133
|
jones
|
"UPDATE xml_nodes set nodename = ? " +
|
289 |
|
|
"WHERE nodeid = ?");
|
290 |
1217
|
tao
|
// Increase DBConnection usage count
|
291 |
|
|
connection.increaseUsageCount(1);
|
292 |
16
|
jones
|
|
293 |
133
|
jones
|
// Bind the values to the query
|
294 |
|
|
pstmt.setString(1, nodename);
|
295 |
134
|
jones
|
pstmt.setLong(2, getNodeID());
|
296 |
133
|
jones
|
// Do the insertion
|
297 |
|
|
pstmt.execute();
|
298 |
|
|
pstmt.close();
|
299 |
|
|
} catch (SQLException e) {
|
300 |
2358
|
sgarg
|
System.out.println("Error in DBSaxNode.writeNodeName: " +
|
301 |
675
|
berkley
|
e.getMessage());
|
302 |
461
|
bojilova
|
throw new SAXException(e.getMessage());
|
303 |
133
|
jones
|
}
|
304 |
|
|
}
|
305 |
16
|
jones
|
|
306 |
1803
|
tao
|
/** creates SQL code and inserts new node into DB connection */
|
307 |
2358
|
sgarg
|
public long writeDTDNodeToDB(String nodename, String data, String docid)
|
308 |
|
|
throws SAXException
|
309 |
1803
|
tao
|
{
|
310 |
|
|
long nid = -1;
|
311 |
2358
|
sgarg
|
try
|
312 |
1803
|
tao
|
{
|
313 |
2358
|
sgarg
|
|
314 |
1803
|
tao
|
PreparedStatement pstmt;
|
315 |
5208
|
daigle
|
logMetacat.info("DBSAXNode.writeDTDNodeToDB - Insert dtd into db: "+nodename +" "+data);
|
316 |
6020
|
leinfelder
|
|
317 |
|
|
pstmt = connection.prepareStatement(
|
318 |
|
|
"INSERT INTO xml_nodes " +
|
319 |
|
|
"(nodetype, nodename, docid, " +
|
320 |
|
|
"rootnodeid, parentnodeid, nodedata, nodeindex) " +
|
321 |
|
|
"VALUES (?, ?, ?, ?, ?, ?, ?)");
|
322 |
2358
|
sgarg
|
|
323 |
1803
|
tao
|
// Increase DBConnection usage count
|
324 |
|
|
connection.increaseUsageCount(1);
|
325 |
2358
|
sgarg
|
|
326 |
1803
|
tao
|
// Bind the values to the query
|
327 |
|
|
pstmt.setString(1, DocumentImpl.DTD);
|
328 |
|
|
pstmt.setString(2, nodename);
|
329 |
|
|
pstmt.setString(3, docid);
|
330 |
|
|
pstmt.setLong(4, getRootNodeID());
|
331 |
|
|
pstmt.setLong(5, getParentID());
|
332 |
|
|
pstmt.setString(6, data);
|
333 |
|
|
pstmt.setInt(7, getNodeIndex());
|
334 |
2358
|
sgarg
|
|
335 |
1803
|
tao
|
// Do the insertion
|
336 |
|
|
pstmt.execute();
|
337 |
|
|
pstmt.close();
|
338 |
|
|
|
339 |
|
|
// get the generated unique id afterward
|
340 |
5319
|
jones
|
nid = DatabaseService.getInstance().getDBAdapter().getUniqueID(connection.getConnections(), "xml_nodes");
|
341 |
2358
|
sgarg
|
|
342 |
1803
|
tao
|
} catch (SQLException e) {
|
343 |
|
|
System.out.println("Error in DBSaxNode.writeDTDNodeToDB");
|
344 |
|
|
System.err.println("Error inserting node: (" + DocumentImpl.DTD + ", " +
|
345 |
2358
|
sgarg
|
nodename + ", " +
|
346 |
1803
|
tao
|
data + ")" );
|
347 |
|
|
System.err.println(e.getMessage());
|
348 |
|
|
e.printStackTrace(System.err);
|
349 |
|
|
throw new SAXException(e.getMessage());
|
350 |
|
|
}
|
351 |
|
|
return nid;
|
352 |
|
|
}
|
353 |
2358
|
sgarg
|
|
354 |
|
|
|
355 |
174
|
bojilova
|
/** get next node id from DB connection */
|
356 |
461
|
bojilova
|
private long generateNodeID() throws SAXException {
|
357 |
174
|
bojilova
|
long nid=0;
|
358 |
6606
|
leinfelder
|
PreparedStatement pstmt;
|
359 |
1217
|
tao
|
DBConnection dbConn = null;
|
360 |
|
|
int serialNumber = -1;
|
361 |
133
|
jones
|
try {
|
362 |
1217
|
tao
|
// Get DBConnection
|
363 |
|
|
dbConn=DBConnectionPool.getDBConnection("DBSAXNode.generateNodeID");
|
364 |
|
|
serialNumber=dbConn.getCheckOutSerialNumber();
|
365 |
6606
|
leinfelder
|
String sql = "SELECT xml_nodes_id_seq.nextval FROM dual";
|
366 |
|
|
pstmt = dbConn.prepareStatement(sql);
|
367 |
|
|
pstmt.execute();
|
368 |
|
|
ResultSet rs = pstmt.getResultSet();
|
369 |
133
|
jones
|
boolean tableHasRows = rs.next();
|
370 |
|
|
if (tableHasRows) {
|
371 |
174
|
bojilova
|
nid = rs.getLong(1);
|
372 |
19
|
jones
|
}
|
373 |
6606
|
leinfelder
|
pstmt.close();
|
374 |
133
|
jones
|
} catch (SQLException e) {
|
375 |
2358
|
sgarg
|
System.out.println("Error in DBSaxNode.generateNodeID: " +
|
376 |
675
|
berkley
|
e.getMessage());
|
377 |
461
|
bojilova
|
throw new SAXException(e.getMessage());
|
378 |
15
|
jones
|
}
|
379 |
1217
|
tao
|
finally
|
380 |
|
|
{
|
381 |
|
|
// Return DBconnection
|
382 |
|
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
383 |
|
|
}//finally
|
384 |
15
|
jones
|
|
385 |
174
|
bojilova
|
return nid;
|
386 |
133
|
jones
|
}
|
387 |
18
|
jones
|
|
388 |
137
|
jones
|
/** Add a new attribute to this node, or set its value */
|
389 |
1416
|
tao
|
public long setAttribute(String attName, String attValue, String docid)
|
390 |
2358
|
sgarg
|
throws SAXException
|
391 |
1416
|
tao
|
{
|
392 |
|
|
long nodeId = -1;
|
393 |
2358
|
sgarg
|
if (attName != null)
|
394 |
1416
|
tao
|
{
|
395 |
133
|
jones
|
// Enter the attribute in the hash table
|
396 |
|
|
super.setAttribute(attName, attValue);
|
397 |
18
|
jones
|
|
398 |
133
|
jones
|
// And enter the attribute in the database
|
399 |
1416
|
tao
|
nodeId = writeChildNodeToDB("ATTRIBUTE", attName, attValue, docid);
|
400 |
2358
|
sgarg
|
}
|
401 |
|
|
else
|
402 |
1416
|
tao
|
{
|
403 |
133
|
jones
|
System.err.println("Attribute name must not be null!");
|
404 |
461
|
bojilova
|
throw new SAXException("Attribute name must not be null!");
|
405 |
18
|
jones
|
}
|
406 |
1416
|
tao
|
return nodeId;
|
407 |
133
|
jones
|
}
|
408 |
176
|
jones
|
|
409 |
821
|
bojilova
|
/** Add a namespace to this node */
|
410 |
1416
|
tao
|
public long setNamespace(String prefix, String uri, String docid)
|
411 |
2358
|
sgarg
|
throws SAXException
|
412 |
1416
|
tao
|
{
|
413 |
|
|
long nodeId = -1;
|
414 |
2358
|
sgarg
|
if (prefix != null)
|
415 |
1416
|
tao
|
{
|
416 |
821
|
bojilova
|
// Enter the namespace in a hash table
|
417 |
|
|
super.setNamespace(prefix, uri);
|
418 |
|
|
// And enter the namespace in the database
|
419 |
1416
|
tao
|
nodeId = writeChildNodeToDB("NAMESPACE", prefix, uri, docid);
|
420 |
2358
|
sgarg
|
}
|
421 |
|
|
else
|
422 |
1416
|
tao
|
{
|
423 |
821
|
bojilova
|
System.err.println("Namespace prefix must not be null!");
|
424 |
|
|
throw new SAXException("Namespace prefix must not be null!");
|
425 |
|
|
}
|
426 |
1416
|
tao
|
return nodeId;
|
427 |
821
|
bojilova
|
}
|
428 |
|
|
|
429 |
176
|
jones
|
|
430 |
2358
|
sgarg
|
|
431 |
|
|
/**
|
432 |
471
|
bojilova
|
* USED FROM SEPARATE THREAD RUNNED from DBSAXHandler on endDocument()
|
433 |
|
|
* Update the node index (xml_index) for this node by generating
|
434 |
|
|
* test strings that represent all of the relative and absolute
|
435 |
|
|
* paths through the XML tree from document root to this node
|
436 |
|
|
*/
|
437 |
2358
|
sgarg
|
public void updateNodeIndex(DBConnection conn, String docid, String doctype)
|
438 |
471
|
bojilova
|
throws SAXException
|
439 |
|
|
{
|
440 |
|
|
Hashtable pathlist = new Hashtable();
|
441 |
|
|
boolean atStartingNode = true;
|
442 |
|
|
boolean atRootDocumentNode = false;
|
443 |
|
|
DBSAXNode nodePointer = this;
|
444 |
|
|
StringBuffer currentPath = new StringBuffer();
|
445 |
|
|
int counter = 0;
|
446 |
|
|
|
447 |
|
|
// Create a Hashtable of all of the paths to reach this node
|
448 |
|
|
// including absolute paths and relative paths
|
449 |
|
|
while (!atRootDocumentNode) {
|
450 |
|
|
if (atStartingNode) {
|
451 |
|
|
currentPath.insert(0, nodePointer.getTagName());
|
452 |
|
|
pathlist.put(currentPath.toString(), new Long(getNodeID()));
|
453 |
|
|
counter++;
|
454 |
|
|
atStartingNode = false;
|
455 |
|
|
} else {
|
456 |
|
|
currentPath.insert(0, "/");
|
457 |
|
|
currentPath.insert(0, nodePointer.getTagName());
|
458 |
|
|
pathlist.put(currentPath.toString(), new Long(getNodeID()));
|
459 |
|
|
counter++;
|
460 |
|
|
}
|
461 |
|
|
|
462 |
|
|
// advance to the next parent node
|
463 |
|
|
nodePointer = nodePointer.getParentNode();
|
464 |
|
|
|
465 |
|
|
// If we're at the DOCUMENT node (root of DOM tree), add
|
466 |
|
|
// the root "/" to make the absolute path
|
467 |
|
|
if (nodePointer.getNodeType().equals("DOCUMENT")) {
|
468 |
|
|
currentPath.insert(0, "/");
|
469 |
|
|
pathlist.put(currentPath.toString(), new Long(getNodeID()));
|
470 |
|
|
counter++;
|
471 |
|
|
atRootDocumentNode = true;
|
472 |
2358
|
sgarg
|
}
|
473 |
471
|
bojilova
|
}
|
474 |
|
|
|
475 |
|
|
try {
|
476 |
|
|
// Create an insert statement to reuse for all of the path insertions
|
477 |
|
|
PreparedStatement pstmt = conn.prepareStatement(
|
478 |
2358
|
sgarg
|
"INSERT INTO xml_index (nodeid, path, docid, doctype, " +
|
479 |
|
|
"parentnodeid) " +
|
480 |
471
|
bojilova
|
"VALUES (?, ?, ?, ?, ?)");
|
481 |
1217
|
tao
|
// Increase usage count
|
482 |
|
|
conn.increaseUsageCount(1);
|
483 |
2358
|
sgarg
|
|
484 |
471
|
bojilova
|
pstmt.setString(3, docid);
|
485 |
|
|
pstmt.setString(4, doctype);
|
486 |
|
|
pstmt.setLong(5, getParentID());
|
487 |
2358
|
sgarg
|
|
488 |
471
|
bojilova
|
// Step through the hashtable and insert each of the path values
|
489 |
176
|
jones
|
Enumeration en = pathlist.keys();
|
490 |
|
|
while (en.hasMoreElements()) {
|
491 |
|
|
String path = (String)en.nextElement();
|
492 |
|
|
Long nodeid = (Long)pathlist.get(path);
|
493 |
|
|
pstmt.setLong(1, nodeid.longValue());
|
494 |
|
|
pstmt.setString(2, path);
|
495 |
2358
|
sgarg
|
|
496 |
457
|
bojilova
|
pstmt.executeUpdate();
|
497 |
176
|
jones
|
}
|
498 |
|
|
// Close the database statement
|
499 |
|
|
pstmt.close();
|
500 |
|
|
} catch (SQLException sqe) {
|
501 |
675
|
berkley
|
System.err.println("SQL Exception while inserting path to index in " +
|
502 |
899
|
berkley
|
"DBSAXNode.updateNodeIndex for document " + docid);
|
503 |
176
|
jones
|
System.err.println(sqe.getMessage());
|
504 |
461
|
bojilova
|
throw new SAXException(sqe.getMessage());
|
505 |
176
|
jones
|
}
|
506 |
|
|
}
|
507 |
2358
|
sgarg
|
|
508 |
176
|
jones
|
/** get the parent of this node */
|
509 |
|
|
public DBSAXNode getParentNode() {
|
510 |
|
|
return parentNode;
|
511 |
|
|
}
|
512 |
15
|
jones
|
}
|