[24393] | 1 | /*
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| 2 | * DocXMLUtil.java
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| 3 | * Used to manipulate archive doc.xml files
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| 4 | *
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| 5 | * Copyright (C) 2005 New Zealand Digital Library, http://www.nzdl.org
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| 6 | *
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| 7 | * This program is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * This program is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 20 | */
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| 21 | package org.greenstone.gsdl3.service;
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| 22 |
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| 23 | import org.greenstone.gsdl3.util.GSDocumentModel;
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| 24 | import org.greenstone.gsdl3.util.GSPath;
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| 25 | import org.greenstone.gsdl3.util.GSXML;
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| 26 |
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| 27 | import org.w3c.dom.Document;
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| 28 | import org.w3c.dom.Element;
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| 29 | import org.w3c.dom.Node;
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| 30 | import org.w3c.dom.NodeList;
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| 31 |
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| 32 | import org.apache.log4j.*;
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| 33 |
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| 34 | import java.io.BufferedWriter;
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| 35 | import java.io.File;
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| 36 | import java.io.FileWriter;
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| 37 | import java.util.ArrayList;
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| 38 | import java.util.HashMap;
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| 39 |
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| 40 | import javax.xml.parsers.DocumentBuilderFactory;
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| 41 | import javax.xml.parsers.DocumentBuilder;
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| 42 | import javax.xml.transform.Result;
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| 43 | import javax.xml.transform.Transformer;
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| 44 | import javax.xml.transform.TransformerFactory;
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| 45 | import javax.xml.transform.dom.DOMSource;
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| 46 | import javax.xml.transform.stream.StreamResult;
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| 47 |
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| 48 | public class DocXMLUtil extends ServiceRack
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| 49 | {
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[24583] | 50 | static Logger logger = Logger.getLogger(org.greenstone.gsdl3.service.DocXMLUtil.class.getName());
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[24393] | 51 | GSDocumentModel _GSDM = null;
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| 52 |
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| 53 | /******************************************************************
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| 54 | * The list of services the doc.xml utility service rack supports *
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| 55 | *****************************************************************/
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| 56 | protected static final String DOC_XML_CREATE_EMPTY_FILE = "DocXMLCreateEmptyFile";
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| 57 | protected static final String DOC_XML_GET_METADATA = "DocXMLGetMetadata";
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| 58 | protected static final String DOC_XML_SET_METADATA = "DocXMLSetMetadata";
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| 59 | protected static final String DOC_XML_CREATE_SECTION = "DocXMLCreateSection";
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| 60 | protected static final String DOC_XML_DELETE_SECTION = "DocXMLDeleteSection";
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| 61 | protected static final String DOC_XML_GET_SECTION = "DocXMLGetSection";
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| 62 | protected static final String DOC_XML_SET_SECTION = "DocXMLSetSection";
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| 63 | protected static final String DOC_XML_GET_TEXT = "DocXMLGetText";
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| 64 | protected static final String DOC_XML_SET_TEXT = "DocXMLSetText";
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| 65 | protected static final String DOC_XML_DELETE_TEXT = "DocXMLDeleteText";
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| 66 | /*****************************************************************/
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| 67 |
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| 68 | String[] services = { DOC_XML_CREATE_EMPTY_FILE, DOC_XML_GET_METADATA, DOC_XML_SET_METADATA, DOC_XML_GET_SECTION, DOC_XML_SET_SECTION, DOC_XML_DELETE_SECTION, DOC_XML_GET_TEXT, DOC_XML_SET_TEXT };
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| 69 |
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| 70 | /** configure this service */
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| 71 | public boolean configure(Element info, Element extra_info)
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| 72 | {
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| 73 | if (!super.configure(info, extra_info))
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| 74 | {
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| 75 | return false;
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| 76 | }
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| 77 |
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| 78 | logger.info("Configuring DocXMLUtil...");
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| 79 | this.config_info = info;
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| 80 |
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| 81 | for (int i = 0; i < services.length; i++)
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| 82 | {
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| 83 | Element service = this.doc.createElement(GSXML.SERVICE_ELEM);
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| 84 | service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
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| 85 | service.setAttribute(GSXML.NAME_ATT, services[i]);
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| 86 | this.short_service_info.appendChild(service);
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| 87 | }
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| 88 |
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| 89 | _GSDM = new GSDocumentModel(this.site_home, this.doc, this.router);
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| 90 |
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| 91 | return true;
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| 92 | }
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| 93 |
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| 94 | protected Element getServiceDescription(String service_id, String lang, String subset)
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| 95 | {
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| 96 | for (int i = 0; i < services.length; i++)
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| 97 | {
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| 98 | if (service_id.equals(services[i]))
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| 99 | {
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| 100 | Element service_elem = this.doc.createElement(GSXML.SERVICE_ELEM);
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| 101 | service_elem.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
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| 102 | service_elem.setAttribute(GSXML.NAME_ATT, services[i]);
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| 103 | return service_elem;
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| 104 | }
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| 105 | }
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| 106 |
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| 107 | return null;
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| 108 | }
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| 109 |
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| 110 | /************
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| 111 | * Services *
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| 112 | ***********/
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| 113 |
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| 114 | protected Element processDocXMLCreateEmptyFile(Element request)
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| 115 | {
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| 116 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_CREATE_EMPTY_FILE);
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| 117 |
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| 118 | if (request == null)
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| 119 | {
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| 120 | GSXML.addError(this.doc, result, DOC_XML_CREATE_EMPTY_FILE + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 121 | return result;
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| 122 | }
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| 123 |
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| 124 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 125 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 126 |
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| 127 | //Go through each of the document items that are requested
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| 128 | NodeList docList = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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| 129 | for (int i = 0; i < docList.getLength(); i++)
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| 130 | {
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| 131 | Element currentDoc = (Element) docList.item(i);
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| 132 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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| 133 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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| 134 |
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| 135 | _GSDM.documentXMLCreateDocXML(oid, collection, lang, uid);
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| 136 | if(_GSDM.checkError(result, DOC_XML_CREATE_EMPTY_FILE))
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| 137 | {
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| 138 | return result;
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| 139 | }
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| 140 | }
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| 141 | return result;
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| 142 | }
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| 143 |
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| 144 | protected Element processDocXMLGetMetadata(Element request)
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| 145 | {
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| 146 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_GET_METADATA);
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| 147 |
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| 148 | if (request == null)
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| 149 | {
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| 150 | GSXML.addError(this.doc, result, DOC_XML_GET_METADATA + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 151 | return result;
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| 152 | }
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| 153 |
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| 154 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 155 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 156 |
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| 157 | //Go through each of the metadata items that are requested
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| 158 | NodeList metadataList = request.getElementsByTagName(GSXML.METADATA_ELEM);
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| 159 | for (int i = 0; i < metadataList.getLength(); i++)
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| 160 | {
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| 161 | Element currentMetadata = (Element) metadataList.item(i);
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| 162 | String oid = currentMetadata.getAttribute(GSXML.NODE_ID_ATT);
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| 163 | String collection = currentMetadata.getAttribute(GSXML.COLLECTION_ATT);
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| 164 | String metadataName = currentMetadata.getAttribute(GSXML.NAME_ATT);
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| 165 |
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| 166 | ArrayList<Element> metadataValues = _GSDM.documentXMLGetMetadata(oid, collection, metadataName, lang, uid);
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| 167 | if(_GSDM.checkError(result, DOC_XML_GET_METADATA))
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| 168 | {
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| 169 | return result;
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| 170 | }
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| 171 |
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| 172 | for(Element metadataValue : metadataValues)
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| 173 | {
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| 174 | Element metadataElem = this.doc.createElement(GSXML.METADATA_ELEM);
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| 175 | metadataElem.setAttribute(GSXML.NAME_ATT, metadataName);
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| 176 | metadataElem.setAttribute(GSXML.VALUE_ATT, metadataValue.getFirstChild().getNodeValue());
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| 177 | result.appendChild(metadataElem);
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| 178 | }
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| 179 | }
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| 180 |
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| 181 | return result;
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| 182 | }
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| 183 |
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| 184 | protected Element processDocXMLSetMetadata(Element request)
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| 185 | {
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| 186 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_SET_METADATA);
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| 187 |
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| 188 | if (request == null)
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| 189 | {
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| 190 | GSXML.addError(this.doc, result, DOC_XML_SET_METADATA + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 191 | return result;
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| 192 | }
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| 193 |
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| 194 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 195 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 196 |
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| 197 | //Go through each of the metadata items that are requested
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| 198 | NodeList metadataList = request.getElementsByTagName(GSXML.METADATA_ELEM);
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| 199 | for (int i = 0; i < metadataList.getLength(); i++)
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| 200 | {
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| 201 | Element currentMetadata = (Element) metadataList.item(i);
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| 202 | String oid = currentMetadata.getAttribute(GSXML.NODE_ID_ATT);
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| 203 | String collection = currentMetadata.getAttribute(GSXML.COLLECTION_ATT);
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| 204 | String metadataName = currentMetadata.getAttribute(GSXML.NAME_ATT);
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| 205 | String newMetadataValue = currentMetadata.getAttribute(GSXML.VALUE_ATT);
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| 206 |
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| 207 | //Optional values
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| 208 | String oldMetadataValue = currentMetadata.getAttribute("old" + GSXML.VALUE_ATT);
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| 209 | String position = currentMetadata.getAttribute("position"); //TODO: Replace "position" with a constant
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| 210 | String operation = currentMetadata.getAttribute("operation");
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| 211 |
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| 212 | int op = GSDocumentModel.OPERATION_APPEND;
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| 213 | if(operation.toLowerCase().equals("insertbefore"))
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| 214 | {
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| 215 | op = GSDocumentModel.OPERATION_INSERT_BEFORE;
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| 216 | }
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| 217 | else if (operation.toLowerCase().equals("insertafter"))
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| 218 | {
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| 219 | op = GSDocumentModel.OPERATION_INSERT_AFTER;
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| 220 | }
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| 221 | else if (operation.toLowerCase().equals("replace"))
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| 222 | {
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| 223 | op = GSDocumentModel.OPERATION_REPLACE;
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| 224 | }
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| 225 |
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| 226 | //If we are given a position then set the value at that position
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| 227 | if(position != null && !position.equals(""))
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| 228 | {
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| 229 | int pos = -1;
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| 230 | try
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| 231 | {
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| 232 | pos = Integer.parseInt(position);
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| 233 | }
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| 234 | catch(Exception ex)
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| 235 | {
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| 236 | GSXML.addError(this.doc, result, DOC_XML_SET_METADATA + ": Error converting the position attribute to an integer", GSXML.ERROR_TYPE_SYNTAX);
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| 237 | return result;
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| 238 | }
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| 239 | _GSDM.documentXMLSetMetadata(oid, collection, metadataName, newMetadataValue, pos, op, lang, uid);
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| 240 | if(_GSDM.checkError(result, DOC_XML_SET_METADATA))
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| 241 | {
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| 242 | return result;
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| 243 | }
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| 244 | }
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| 245 | //If we are given a value to replace with then call the replacement method
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| 246 | else if (oldMetadataValue != null && !oldMetadataValue.equals(""))
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| 247 | {
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| 248 | _GSDM.documentXMLReplaceMetadata(oid, collection, metadataName, oldMetadataValue, newMetadataValue, lang, uid);
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| 249 | if(_GSDM.checkError(result, DOC_XML_SET_METADATA))
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| 250 | {
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| 251 | return result;
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| 252 | }
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| 253 | }
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| 254 | else
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| 255 | {
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| 256 | GSXML.addError(this.doc, result, DOC_XML_SET_METADATA + ": A position or previous value was not given", GSXML.ERROR_TYPE_SYNTAX);
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| 257 | return result;
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| 258 | }
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| 259 | }
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| 260 |
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| 261 | return result;
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| 262 | }
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| 263 |
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| 264 | protected Element processDocXMLCreateSection(Element request)
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| 265 | {
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| 266 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_CREATE_SECTION);
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| 267 |
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| 268 | if (request == null)
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| 269 | {
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| 270 | GSXML.addError(this.doc, result, DOC_XML_CREATE_SECTION + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 271 | return result;
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| 272 | }
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| 273 |
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| 274 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 275 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 276 |
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| 277 | //Go through each of the requests
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| 278 | NodeList sectionList = request.getElementsByTagName(GSXML.DOCXML_SECTION_ELEM); //TODO: Replace "Section" with a constant
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| 279 | for (int i = 0; i < sectionList.getLength(); i++)
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| 280 | {
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| 281 | Element currentSection = (Element) sectionList.item(i);
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| 282 | String oid = currentSection.getAttribute(GSXML.NODE_ID_ATT);
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| 283 | String collection = currentSection.getAttribute(GSXML.COLLECTION_ATT);
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| 284 |
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| 285 | _GSDM.documentXMLCreateSection(oid, collection, lang, uid);
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| 286 | if(_GSDM.checkError(result, DOC_XML_CREATE_SECTION))
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| 287 | {
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| 288 | return result;
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| 289 | }
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| 290 | }
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| 291 | return result;
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| 292 | }
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| 293 |
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| 294 | protected Element processDocXMLDeleteSection(Element request)
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| 295 | {
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| 296 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_DELETE_SECTION);
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| 297 |
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| 298 | if (request == null)
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| 299 | {
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| 300 | GSXML.addError(this.doc, result, DOC_XML_DELETE_SECTION + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 301 | return result;
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| 302 | }
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| 303 |
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| 304 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 305 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 306 |
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| 307 | //Go through each of the requests
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| 308 | NodeList sectionList = request.getElementsByTagName(GSXML.DOCXML_SECTION_ELEM);
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| 309 | for (int i = 0; i < sectionList.getLength(); i++)
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| 310 | {
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| 311 | Element currentSection = (Element) sectionList.item(i);
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| 312 | String oid = currentSection.getAttribute(GSXML.NODE_ID_ATT);
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| 313 | String collection = currentSection.getAttribute(GSXML.COLLECTION_ATT);
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| 314 |
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| 315 | _GSDM.documentXMLDeleteSection(oid, collection, lang, uid);
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| 316 | if(_GSDM.checkError(result, DOC_XML_DELETE_SECTION))
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| 317 | {
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| 318 | return result;
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| 319 | }
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| 320 | }
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| 321 | return result;
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| 322 | }
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| 323 |
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| 324 | protected Element processDocXMLGetSection(Element request)
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| 325 | {
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| 326 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_GET_SECTION);
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| 327 |
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| 328 | if (request == null)
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| 329 | {
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| 330 | GSXML.addError(this.doc, result, DOC_XML_GET_SECTION + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 331 | return result;
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| 332 | }
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| 333 |
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| 334 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 335 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 336 |
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| 337 | //Go through each of the requests
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| 338 | NodeList sectionList = request.getElementsByTagName(GSXML.DOCXML_SECTION_ELEM);
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| 339 | for (int i = 0; i < sectionList.getLength(); i++)
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| 340 | {
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| 341 | Element currentSection = (Element) sectionList.item(i);
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| 342 | String oid = currentSection.getAttribute(GSXML.NODE_ID_ATT);
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| 343 | String collection = currentSection.getAttribute(GSXML.COLLECTION_ATT);
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| 344 |
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| 345 | _GSDM.documentXMLGetSection(oid, collection, lang, uid);
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| 346 | if(_GSDM.checkError(result, DOC_XML_GET_SECTION))
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| 347 | {
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| 348 | return result;
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| 349 | }
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| 350 | }
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| 351 | return result;
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| 352 | }
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| 353 |
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| 354 | protected Element processDocXMLSetSection(Element request)
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| 355 | {
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| 356 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_SET_SECTION);
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| 357 |
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| 358 | if (request == null)
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| 359 | {
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| 360 | GSXML.addError(this.doc, result, DOC_XML_SET_SECTION + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 361 | return result;
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| 362 | }
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| 363 |
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| 364 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 365 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 366 |
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| 367 | //Go through each of the requests
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| 368 | NodeList sectionList = request.getElementsByTagName(GSXML.DOCXML_SECTION_ELEM);
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| 369 | for (int i = 0; i < sectionList.getLength(); i++)
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| 370 | {
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| 371 | Element currentSection = (Element) sectionList.item(i);
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| 372 | String oid = currentSection.getAttribute(GSXML.NODE_ID_ATT);
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| 373 | String collection = currentSection.getAttribute(GSXML.COLLECTION_ATT);
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| 374 | String operation = currentSection.getAttribute("operation");
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| 375 |
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| 376 | int op = GSDocumentModel.OPERATION_REPLACE;
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| 377 | if(operation.equals("insertbefore"))
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| 378 | {
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| 379 | op = GSDocumentModel.OPERATION_INSERT_BEFORE;
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| 380 | }
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| 381 | else if (operation.equals("insertafter"))
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| 382 | {
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| 383 | op = GSDocumentModel.OPERATION_INSERT_AFTER;
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| 384 | }
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| 385 | else if (operation.equals("append"))
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| 386 | {
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| 387 | op = GSDocumentModel.OPERATION_APPEND;
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| 388 | }
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| 389 |
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| 390 | _GSDM.documentXMLSetSection(oid, collection, currentSection, op, lang, uid);
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| 391 | if(_GSDM.checkError(result, DOC_XML_SET_SECTION))
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| 392 | {
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| 393 | return result;
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| 394 | }
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| 395 | }
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| 396 |
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| 397 | return result;
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| 398 | }
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| 399 |
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| 400 | protected Element processDocXMLGetText(Element request)
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| 401 | {
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| 402 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_GET_TEXT);
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| 403 |
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| 404 | if (request == null)
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| 405 | {
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| 406 | GSXML.addError(this.doc, result, DOC_XML_GET_TEXT + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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| 407 | return result;
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| 408 | }
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| 409 |
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| 410 | String lang = request.getAttribute(GSXML.LANG_ATT);
|
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| 411 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
|
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| 412 |
|
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| 413 | //Go through each of the requests
|
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| 414 | NodeList contentList = request.getElementsByTagName(GSXML.DOCXML_CONTENT_ELEM);
|
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| 415 | for (int i = 0; i < contentList.getLength(); i++)
|
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| 416 | {
|
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| 417 | Element currentContent = (Element) contentList.item(i);
|
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| 418 | String oid = currentContent.getAttribute(GSXML.NODE_ID_ATT);
|
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| 419 | String collection = currentContent.getAttribute(GSXML.COLLECTION_ATT);
|
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| 420 |
|
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| 421 | String content = _GSDM.documentXMLGetText(oid, collection, lang, uid);
|
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| 422 | if(_GSDM.checkError(result, DOC_XML_GET_TEXT))
|
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| 423 | {
|
---|
| 424 | return result;
|
---|
| 425 | }
|
---|
| 426 |
|
---|
| 427 | if (content == null)
|
---|
| 428 | {
|
---|
| 429 | result.appendChild(this.doc.createElement(GSXML.DOCXML_CONTENT_ELEM));
|
---|
| 430 | }
|
---|
| 431 | else
|
---|
| 432 | {
|
---|
| 433 | Element contentElem = this.doc.createElement(GSXML.DOCXML_CONTENT_ELEM);
|
---|
| 434 | Node textNode = this.doc.createTextNode(content);
|
---|
| 435 | contentElem.appendChild(textNode);
|
---|
| 436 | result.appendChild(contentElem);
|
---|
| 437 | }
|
---|
| 438 | }
|
---|
| 439 |
|
---|
| 440 | return result;
|
---|
| 441 | }
|
---|
| 442 |
|
---|
| 443 | protected Element processDocXMLSetText(Element request)
|
---|
| 444 | {
|
---|
| 445 | Element result = GSXML.createBasicResponse(this.doc, DOC_XML_SET_TEXT);
|
---|
| 446 |
|
---|
| 447 | if (request == null)
|
---|
| 448 | {
|
---|
| 449 | GSXML.addError(this.doc, result, DOC_XML_SET_TEXT + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
|
---|
| 450 | return result;
|
---|
| 451 | }
|
---|
| 452 |
|
---|
| 453 | String lang = request.getAttribute(GSXML.LANG_ATT);
|
---|
| 454 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
|
---|
| 455 |
|
---|
| 456 | //Go through each of the requests
|
---|
| 457 | NodeList contentList = request.getElementsByTagName(GSXML.DOCXML_CONTENT_ELEM);
|
---|
| 458 | for (int i = 0; i < contentList.getLength(); i++)
|
---|
| 459 | {
|
---|
| 460 | Element currentContent = (Element) contentList.item(i);
|
---|
| 461 | String oid = currentContent.getAttribute(GSXML.NODE_ID_ATT);
|
---|
| 462 | String collection = currentContent.getAttribute(GSXML.COLLECTION_ATT);
|
---|
| 463 |
|
---|
| 464 | _GSDM.documentXMLSetText(oid, collection, currentContent, lang, uid);
|
---|
| 465 | if(_GSDM.checkError(result, DOC_XML_SET_TEXT))
|
---|
| 466 | {
|
---|
| 467 | return result;
|
---|
| 468 | }
|
---|
| 469 | }
|
---|
| 470 |
|
---|
| 471 | return result;
|
---|
| 472 | }
|
---|
| 473 | } |
---|