1 | /*
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2 | * DocumentMaker.java
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3 | * The Document Maker service that can be used to create/modify custom
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4 | * documents in Greenstone collection
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5 | *
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6 | * Copyright (C) 2005 New Zealand Digital Library, http://www.nzdl.org
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7 | *
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8 | * This program is free software; you can redistribute it and/or modify
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9 | * it under the terms of the GNU General Public License as published by
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10 | * the Free Software Foundation; either version 2 of the License, or
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11 | * (at your option) any later version.
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12 | *
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13 | * This program is distributed in the hope that it will be useful,
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | * GNU General Public License for more details.
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17 | *
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18 | * You should have received a copy of the GNU General Public License
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19 | * along with this program; if not, write to the Free Software
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20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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21 | */
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22 | package org.greenstone.gsdl3.service;
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23 |
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24 | import java.io.BufferedReader;
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25 | import java.io.InputStreamReader;
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26 | import java.io.OutputStream;
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27 | import java.io.Serializable;
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28 | import java.lang.reflect.Type;
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29 | import java.util.ArrayList;
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30 | import java.util.HashMap;
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31 | import java.util.Iterator;
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32 | import java.util.List;
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33 | import java.util.Map;
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34 | import java.util.Set;
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35 |
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36 | import org.apache.log4j.*;
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37 |
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38 | import org.greenstone.gsdl3.util.UserContext;
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39 | import org.greenstone.gsdl3.util.SimpleCollectionDatabase;
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40 |
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41 |
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42 | import org.greenstone.gsdl3.util.GSDocumentModel;
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43 | import org.greenstone.gsdl3.util.GSFile;
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44 | import org.greenstone.gsdl3.util.GSPath;
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45 | import org.greenstone.gsdl3.util.GSXML;
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46 | import org.greenstone.gsdl3.util.UserContext;
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47 | import org.greenstone.gsdl3.util.XMLConverter;
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48 |
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49 | import org.w3c.dom.Document;
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50 | import org.w3c.dom.Element;
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51 | import org.w3c.dom.NodeList;
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52 |
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53 | import com.google.gson.Gson;
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54 | import com.google.gson.reflect.TypeToken;
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55 |
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56 | public class DocumentMaker extends ServiceRack
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57 | {
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58 | static Logger logger = Logger.getLogger(org.greenstone.gsdl3.service.ArchiveIO.class.getName());
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59 |
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60 | GSDocumentModel _GSDM = null;
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61 |
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62 | /****************************************************
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63 | * The list of services the Document Maker supports *
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64 | ***************************************************/
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65 | //Document/section services
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66 | protected static final String DOCUMENT_CREATE = "DocumentCreate";
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67 | protected static final String DOCUMENT_DELETE = "DocumentDelete";
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68 | protected static final String DOCUMENT_DUPLICATE = "DocumentDuplicate";
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69 | protected static final String DOCUMENT_MOVE = "DocumentMove";
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70 | protected static final String DOCUMENT_MERGE = "DocumentMerge";
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71 | protected static final String DOCUMENT_SPLIT = "DocumentSplit";
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72 | protected static final String DOCUMENT_GET_INFORMATION = "DocumentGetInformation";
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73 |
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74 | //Other services
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75 | protected static final String DOCUMENT_EXECUTE_TRANSACTION = "DocumentExecuteTransaction";
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76 | /***************************************************/
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77 |
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78 | String[] services = { DOCUMENT_CREATE, DOCUMENT_DELETE, DOCUMENT_DUPLICATE, DOCUMENT_GET_INFORMATION, DOCUMENT_MOVE, DOCUMENT_MERGE, DOCUMENT_SPLIT, DOCUMENT_EXECUTE_TRANSACTION };
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79 |
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80 | /** configure this service */
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81 | public boolean configure(Element info, Element extra_info)
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82 | {
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83 | if (!super.configure(info, extra_info))
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84 | {
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85 | return false;
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86 | }
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87 |
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88 | logger.info("Configuring DocumentMaker...");
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89 | this.config_info = info;
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90 |
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91 | for (int i = 0; i < services.length; i++)
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92 | {
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93 | Element service = this.desc_doc.createElement(GSXML.SERVICE_ELEM);
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94 | service.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
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95 | service.setAttribute(GSXML.NAME_ATT, services[i]);
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96 | this.short_service_info.appendChild(service);
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97 | }
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98 |
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99 | _GSDM = new GSDocumentModel(this.site_home, this.router);
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100 |
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101 | return true;
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102 | }
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103 |
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104 | protected Element getServiceDescription(Document doc, String service_id, String lang, String subset)
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105 | {
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106 | for (int i = 0; i < services.length; i++)
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107 | {
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108 | if (service_id.equals(services[i]))
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109 | {
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110 | Element service_elem = doc.createElement(GSXML.SERVICE_ELEM);
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111 | service_elem.setAttribute(GSXML.TYPE_ATT, GSXML.SERVICE_TYPE_RETRIEVE);
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112 | service_elem.setAttribute(GSXML.NAME_ATT, services[i]);
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113 | return service_elem;
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114 | }
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115 | }
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116 |
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117 | return null;
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118 | }
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119 |
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120 | /************
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121 | * Services *
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122 | ***********/
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123 |
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124 | protected Element processDocumentCreate(Element request)
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125 | {
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126 | Document result_doc = XMLConverter.newDOM();
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127 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_CREATE);
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128 |
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129 | if (request == null)
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130 | {
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131 | GSXML.addError(result, DOCUMENT_CREATE + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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132 | return result;
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133 | }
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134 |
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135 | UserContext userContext = new UserContext(request);
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136 |
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137 | //Get the list of documents to create
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138 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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139 | for (int i = 0; i < documents.getLength(); i++)
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140 | {
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141 | //Get information about the current new document
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142 | Element currentDoc = (Element) documents.item(i);
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143 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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144 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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145 |
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146 | _GSDM.documentCreate(oid, collection, userContext);
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147 | if (_GSDM.checkError(result, DOCUMENT_CREATE))
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148 | {
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149 | return result;
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150 | }
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151 | }
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152 |
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153 | return result;
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154 | }
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155 |
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156 | protected Element processDocumentDelete(Element request)
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157 | {
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158 | Document result_doc = XMLConverter.newDOM();
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159 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_DELETE);
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160 |
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161 | if (request == null)
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162 | {
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163 | GSXML.addError(result, DOCUMENT_DELETE + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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164 | return result;
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165 | }
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166 |
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167 | UserContext userContext = new UserContext(request);
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168 |
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169 | //Get the list of documents to delete
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170 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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171 | for (int i = 0; i < documents.getLength(); i++)
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172 | {
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173 | Element currentDoc = (Element) documents.item(i);
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174 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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175 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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176 |
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177 | _GSDM.documentDelete(oid, collection, userContext);
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178 | if (_GSDM.checkError(result, DOCUMENT_DELETE))
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179 | {
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180 | return result;
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181 | }
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182 | }
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183 |
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184 | return result;
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185 | }
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186 |
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187 | protected Element processDocumentDuplicate(Element request)
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188 | {
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189 | Document result_doc = XMLConverter.newDOM();
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190 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_DUPLICATE);
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191 |
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192 | if (request == null)
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193 | {
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194 | GSXML.addError(result, DOCUMENT_DUPLICATE + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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195 | return result;
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196 | }
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197 |
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198 | UserContext userContext = new UserContext(request);
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199 |
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200 | //Get the list of documents to duplicate
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201 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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202 | for (int i = 0; i < documents.getLength(); i++)
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203 | {
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204 | Element currentDoc = (Element) documents.item(i);
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205 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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206 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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207 | String newOID = currentDoc.getAttribute("new" + GSXML.NODE_ID_ATT);
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208 | String newCollection = currentDoc.getAttribute("new" + GSXML.COLLECTION_ATT);
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209 | String operation = currentDoc.getAttribute("operation");
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210 |
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211 | _GSDM.documentMoveOrDuplicate(oid, collection, newOID, newCollection, _GSDM.operationStringToInt(operation), false, userContext);
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212 | if (_GSDM.checkError(result, DOCUMENT_DUPLICATE))
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213 | {
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214 | return result;
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215 | }
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216 | }
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217 |
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218 | return result;
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219 | }
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220 |
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221 | protected Element processDocumentGetInformation(Element request)
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222 | {
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223 | Document result_doc = XMLConverter.newDOM();
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224 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_GET_INFORMATION);
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225 |
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226 | if (request == null)
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227 | {
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228 | GSXML.addError(result, DOCUMENT_GET_INFORMATION + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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229 | return result;
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230 | }
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231 |
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232 | UserContext userContext = new UserContext(request);
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233 |
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234 | //Get the list of documents to duplicate
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235 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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236 | for (int i = 0; i < documents.getLength(); i++)
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237 | {
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238 | Element currentDoc = (Element) documents.item(i);
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239 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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240 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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241 |
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242 | NodeList requestedInfoList = currentDoc.getElementsByTagName("info"); //TODO: Replace info with a constant
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243 | String[] requestedInfo = new String[requestedInfoList.getLength()];
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244 |
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245 | for (int j = 0; j < requestedInfoList.getLength(); j++)
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246 | {
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247 | requestedInfo[j] = ((Element) requestedInfoList.item(j)).getAttribute(GSXML.NAME_ATT);
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248 | }
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249 |
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250 | _GSDM.documentGetInformation(oid, collection, requestedInfo, userContext);
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251 | if (_GSDM.checkError(result, DOCUMENT_GET_INFORMATION))
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252 | {
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253 | return result;
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254 | }
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255 | }
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256 |
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257 | return result;
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258 | }
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259 |
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260 | protected Element processDocumentMove(Element request)
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261 | {
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262 | Document result_doc = XMLConverter.newDOM();
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263 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_MOVE);
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264 |
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265 | if (request == null)
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266 | {
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267 | GSXML.addError(result, DOCUMENT_MOVE + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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268 | return result;
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269 | }
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270 |
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271 | UserContext userContext = new UserContext(request);
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272 |
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273 | //Get the list of documents to duplicate
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274 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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275 | for (int i = 0; i < documents.getLength(); i++)
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276 | {
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277 | Element currentDoc = (Element) documents.item(i);
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278 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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279 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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280 | String newOID = currentDoc.getAttribute("new" + GSXML.NODE_ID_ATT);
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281 | String newCollection = currentDoc.getAttribute("new" + GSXML.COLLECTION_ATT);
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282 | String operation = currentDoc.getAttribute("operation");
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283 |
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284 | _GSDM.documentMoveOrDuplicate(oid, collection, newOID, newCollection, _GSDM.operationStringToInt(operation), true, userContext);
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285 | if (_GSDM.checkError(result, DOCUMENT_MOVE))
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286 | {
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287 | return result;
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288 | }
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289 | }
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290 | return result;
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291 | }
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292 |
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293 | protected Element processDocumentMerge(Element request)
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294 | {
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295 | Document result_doc = XMLConverter.newDOM();
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296 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_MERGE);
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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(result, DOCUMENT_MERGE + ": 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 | UserContext userContext = new UserContext(request);
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305 |
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306 | //Get the list of documents to duplicate
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307 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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308 | for (int i = 0; i < documents.getLength(); i++)
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309 | {
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310 | Element currentDoc = (Element) documents.item(i);
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311 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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312 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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313 | String mergeOID = currentDoc.getAttribute("merge" + GSXML.NODE_ID_ATT);
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314 |
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315 | _GSDM.documentMerge(oid, collection, mergeOID, userContext);
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316 | if (_GSDM.checkError(result, DOCUMENT_MERGE))
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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 |
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322 | return result;
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323 | }
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324 |
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325 | protected Element processDocumentSplit(Element request)
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326 | {
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327 | Document result_doc = XMLConverter.newDOM();
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328 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_SPLIT);
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329 |
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330 | if (request == null)
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331 | {
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332 | GSXML.addError(result, DOCUMENT_SPLIT + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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333 | return result;
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334 | }
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335 |
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336 | UserContext userContext = new UserContext(request);
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337 |
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338 | //Get the list of documents to duplicate
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339 | NodeList documents = request.getElementsByTagName(GSXML.DOCUMENT_ELEM);
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340 | for (int i = 0; i < documents.getLength(); i++)
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341 | {
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342 | Element currentDoc = (Element) documents.item(i);
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343 | String oid = currentDoc.getAttribute(GSXML.NODE_ID_ATT);
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344 | String collection = currentDoc.getAttribute(GSXML.COLLECTION_ATT);
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345 | String splitPoint = currentDoc.getAttribute("splitpoint");
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346 |
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347 | int split;
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348 | try
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349 | {
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350 | split = Integer.parseInt(splitPoint);
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351 | }
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352 | catch (Exception ex)
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353 | {
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354 | GSXML.addError(result, DOCUMENT_SPLIT + ": The split point was not an integer", GSXML.ERROR_TYPE_SYNTAX);
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355 | return result;
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356 | }
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357 |
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358 | _GSDM.documentSplit(oid, collection, split, userContext);
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359 | if (_GSDM.checkError(result, DOCUMENT_SPLIT))
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360 | {
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361 | return result;
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362 | }
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363 | }
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364 |
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365 | return result;
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366 | }
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367 |
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368 | protected Element processDocumentExecuteTransaction(Element request)
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369 | {
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370 | Document result_doc = XMLConverter.newDOM();
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371 | Element result = GSXML.createBasicResponse(result_doc, DOCUMENT_EXECUTE_TRANSACTION);
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372 |
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373 | if (request == null)
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374 | {
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375 | GSXML.addError(result, DOCUMENT_EXECUTE_TRANSACTION + ": Request is null", GSXML.ERROR_TYPE_SYNTAX);
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376 | return result;
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377 | }
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378 |
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379 | UserContext userContext = new UserContext(request);
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380 |
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381 | Element param_list = (Element) GSXML.getChildByTagName(request, GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
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382 | if (param_list == null)
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383 | {
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384 | GSXML.addError(result, DOCUMENT_EXECUTE_TRANSACTION + ": Request has no parameter list", GSXML.ERROR_TYPE_SYNTAX);
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385 | return result;
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386 | }
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387 |
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388 | HashMap<String, Serializable> params = GSXML.extractParams(param_list, false);
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389 | String transactionString = (String) params.get("transactions");
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390 | transactionString = transactionString.replace("%26", "&");
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391 |
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392 | List<Map<String, String>> transactions = null;
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393 | try
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394 | {
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395 | Gson gson = new Gson();
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396 | Type type = new TypeToken<List<Map<String, String>>>()
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397 | {
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398 | }.getType();
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399 | transactions = gson.fromJson(transactionString, type);
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400 | }
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401 | catch (Exception ex)
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402 | {
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403 | ex.printStackTrace();
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404 | }
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405 |
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406 | if (transactions != null && transactions.size() > 0)
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407 | {
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408 | for (int j = 0; j < transactions.size(); j++)
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409 | {
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410 | Map keyValueMap = transactions.get(j);
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411 | String operation = (String) keyValueMap.get("operation");
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412 | if (operation.equals("move") || operation.equals("duplicate"))
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413 | {
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414 | String origCollection = (String) keyValueMap.get("collection");
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415 | String origOID = (String) keyValueMap.get("oid");
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416 | String newCollection = (String) keyValueMap.get("newCollection");
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417 | String newOID = (String) keyValueMap.get("newOID");
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418 | String subOperation = (String) keyValueMap.get("subOperation");
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419 |
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420 | _GSDM.documentMoveOrDuplicate(origOID, origCollection, newOID, newCollection, _GSDM.operationStringToInt(subOperation), operation.equals("move"), userContext);
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421 | }
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422 | else if (operation.equals("createDocument"))
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423 | {
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424 | String oid = (String) keyValueMap.get("oid");
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425 | String collection = (String) keyValueMap.get("collection");
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426 |
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427 | _GSDM.documentCreate(oid, collection, userContext);
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428 | }
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429 | else if (operation.equals("create"))
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430 | {
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431 | String oid = (String) keyValueMap.get("oid");
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432 | String collection = (String) keyValueMap.get("collection");
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433 | String subOperation = (String) keyValueMap.get("subOperation");
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434 |
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435 | //_GSDM.documentCreate(oid, collection, userContext); <--- Maybe go back to this
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436 | _GSDM.documentXMLSetSection(oid, collection, result_doc.createElement(GSXML.DOCXML_SECTION_ELEM), _GSDM.operationStringToInt(subOperation), userContext);
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437 | }
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438 | else if (operation.equals("delete"))
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439 | {
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440 | String oid = (String) keyValueMap.get("oid");
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441 | String collection = (String) keyValueMap.get("collection");
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442 |
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443 | _GSDM.documentDelete(oid, collection, userContext);
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444 | }
|
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445 | else if (operation.equals("setText"))
|
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446 | {
|
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447 | String oid = (String) keyValueMap.get("oid");
|
---|
448 | String collection = (String) keyValueMap.get("collection");
|
---|
449 | String newContent = (String) keyValueMap.get("text");
|
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450 |
|
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451 | _GSDM.documentXMLSetText(oid, collection, newContent, userContext);
|
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452 |
|
---|
453 | markDocumentInFlatDatabase("R", collection, oid);
|
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454 |
|
---|
455 | }
|
---|
456 |
|
---|
457 | if (_GSDM.checkError(result, DOCUMENT_EXECUTE_TRANSACTION))
|
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458 | {
|
---|
459 | return result;
|
---|
460 | }
|
---|
461 | }
|
---|
462 | }
|
---|
463 | return result;
|
---|
464 |
|
---|
465 | }
|
---|
466 | protected void markDocumentInFlatDatabase(String mark, String collection, String oid) {
|
---|
467 |
|
---|
468 | Document msg_doc = XMLConverter.newDOM();
|
---|
469 | Element message = msg_doc.createElement(GSXML.MESSAGE_ELEM);
|
---|
470 | UserContext userContext = new UserContext();
|
---|
471 | Element query_request = GSXML.createBasicRequest(msg_doc, GSXML.REQUEST_TYPE_DESCRIBE , collection, userContext);
|
---|
472 | message.appendChild(query_request);
|
---|
473 | Element result = (Element) this.router.process(message);
|
---|
474 | Element resp_elem = (Element) GSXML.getChildByTagName(result, GSXML.RESPONSE_ELEM);
|
---|
475 | Element coll_elem = (Element) GSXML.getChildByTagName(resp_elem, GSXML.COLLECTION_ELEM);
|
---|
476 | String dbtype = coll_elem.getAttribute(GSXML.DB_TYPE_ATT);
|
---|
477 |
|
---|
478 | SimpleCollectionDatabase coll_db = new SimpleCollectionDatabase(dbtype);
|
---|
479 | if (!coll_db.databaseOK())
|
---|
480 | {
|
---|
481 | logger.error("Couldn't create the collection database of type " + dbtype);
|
---|
482 | return;
|
---|
483 | }
|
---|
484 |
|
---|
485 | // Open database for reading
|
---|
486 | String coll_db_file = GSFile.archivesDatabaseFile(this.site_home, collection, dbtype);
|
---|
487 | if (!coll_db.openDatabase(coll_db_file, SimpleCollectionDatabase.READ))
|
---|
488 | {
|
---|
489 | logger.error("Could not open collection archives database. Somebody already using this database!");
|
---|
490 | }
|
---|
491 | String old_value = coll_db.getValue(oid);
|
---|
492 | String new_value = old_value.replace("<index-status>B", "<index-status>" + mark);
|
---|
493 | // Close database for reading
|
---|
494 | coll_db.closeDatabase();
|
---|
495 | if (!coll_db.openDatabase(coll_db_file, SimpleCollectionDatabase.WRITE))
|
---|
496 | {
|
---|
497 | logger.error("Could not open collection archives database. Somebody already using this database!");
|
---|
498 | }
|
---|
499 | coll_db.setValue(oid, new_value);
|
---|
500 | coll_db.closeDatabase();
|
---|
501 |
|
---|
502 | }
|
---|
503 | } |
---|