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annotate software/eXist/mpdl-modules/src/de/mpg/mpiwg/berlin/mpdl/escidoc/ESciDocIngestor.java @ 0:408254cf2f1d

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Erstellung
author Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
date Wed, 24 Nov 2010 17:24:23 +0100
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408254cf2f1d Erstellung
Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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1 package de.mpg.mpiwg.berlin.mpdl.escidoc;
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2
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3 import java.util.ArrayList;
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4 import java.util.Date;
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5
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6 import javax.xml.namespace.NamespaceContext;
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7
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8 import org.w3c.dom.Node;
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9
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10 import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException;
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11 import de.mpg.mpiwg.berlin.mpdl.general.MpdlConstants;
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12 import de.mpg.mpiwg.berlin.mpdl.schedule.MpdlDocOperation;
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13 import de.mpg.mpiwg.berlin.mpdl.util.StringUtilEscapeChars;
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14 import de.mpg.mpiwg.berlin.mpdl.util.XmlUtil;
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15 import de.mpg.mpiwg.berlin.mpdl.xml.SchemaHandler;
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16
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17 public class ESciDocIngestor {
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18 private ESciDocRestSession eSciDocSession;
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19
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20 public ESciDocIngestor(ESciDocRestSession eSciDocSession) {
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21 this.eSciDocSession = eSciDocSession;
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22 }
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23
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24 public String execute(MpdlDocOperation docOperation) throws ApplicationException {
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25 String performedContainerId = null;
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26 String operationName = docOperation.getName();
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27 if (operationName.equals("create")) {
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28 performedContainerId = createDocument(docOperation);
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29 } else if (operationName.equals("update")) {
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30 performedContainerId = updateDocument(docOperation);
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31 } else if (operationName.equals("delete")) {
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32 performedContainerId = deleteDocument(docOperation);
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33 }
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34 String performedESciDocUrl = "http://" + MpdlConstants.MPDL_ESCIDOC_HOST_NAME + ":" + MpdlConstants.MPDL_ESCIDOC_PORT + performedContainerId;
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35 docOperation.setESciDocDestUrl(performedESciDocUrl);
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36 return performedESciDocUrl;
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37 }
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38
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39 private String createDocument(MpdlDocOperation docOperation) throws ApplicationException {
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40 String pid = eSciDocSession.getPid();
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41 String docBaseContainerId = MpdlConstants.MPDL_ESCIDOC_ECHO_CONTAINER_ID;
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42 String eXistIdentifier = docOperation.getDestUrl(); // e.g. /echo/la/Benedetti_1585.xml
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43 String docBase = docOperation.getDocBase();
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44 if (docBase != null && docBase.equals("archimedes"))
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45 docBaseContainerId = MpdlConstants.MPDL_ESCIDOC_ARCHIMEDES_CONTAINER_ID;
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46 docOperation.setStatus("create document: " + eXistIdentifier + " on eSciDoc server");
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47 String destFileName = MpdlConstants.MPDL_EXIST_DATA_DIR + "/documents" + eXistIdentifier;
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48 // upload the file to the eSciDoc stage area
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49 String eSciDocStageAreaUrl = eSciDocSession.uploadFileToESciDocStageArea(destFileName);
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50 Node docNode = docOperation.getDocNode();
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51 MetadataRecord mdRecord = docOperation.getMdRecord();
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52 if (mdRecord != null) {
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53 mdRecord.setMediaType("fulltext");
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54 }
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55 // create document container for all items
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56 Container newContainer = eSciDocSession.createContainerInContainer(pid, mdRecord, docBaseContainerId);
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57 String newContainerId = newContainer.getId();
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58 Date lastModificationDate = newContainer.getLastModificationDate();
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59 eSciDocSession.submitContainer(newContainerId, lastModificationDate, "create document");
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60 // create the fulltext item
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61 String existViewerUrl = "http://mpdl-proto.mpiwg-berlin.mpg.de/mpdl/page-query-result.xql?document=" + eXistIdentifier + "&amp;mode=text";
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62 ArrayList<Component> components = new ArrayList<Component>();
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63 String contentCategory = "fulltext XML - ECHO";
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64 if (docBase != null && docBase.equals("archimedes"))
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65 contentCategory = "fulltext XML - Archimedes";
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66 Component componentXmlFulltext = new Component("valid", "public", contentCategory, "text/xml", eSciDocStageAreaUrl, "internal-managed");
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67 Component componentExistViewer = new Component("valid", "public", contentCategory, "text/html", existViewerUrl, "external-url");
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68 components.add(componentXmlFulltext);
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69 components.add(componentExistViewer);
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70 Item fulltextItem = eSciDocSession.createItemInContainer(newContainerId, pid, mdRecord, components);
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71 String fulltextItemId = fulltextItem.getId();
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72 Date fulltextItemLastModificationDate = fulltextItem.getLastModificationDate();
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73 eSciDocSession.submitItem(fulltextItemId, fulltextItemLastModificationDate, "create document");
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74 // page items: for each page create one item
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75 SchemaHandler schemaHandler = new SchemaHandler();
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76 ArrayList<String> pbFileNamesArrayStr = schemaHandler.getPBFileNames(docNode, docBase);
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77 createPageItemsInContainer(docOperation, mdRecord, pbFileNamesArrayStr, newContainerId);
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78 return newContainerId;
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79 }
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80
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81 private String updateDocument(MpdlDocOperation docOperation) throws ApplicationException {
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82 String docBase = docOperation.getDocBase();
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83 String eXistIdentifier = docOperation.getDestUrl();
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84 String pid = eSciDocSession.getPid();
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85 String destFileName = MpdlConstants.MPDL_EXIST_DATA_DIR + "/documents" + eXistIdentifier;
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86 String documentContainerId = eSciDocSession.getContainerIdByEXistId(eXistIdentifier);
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87 if (documentContainerId == null)
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88 throw new ApplicationException("Document:" + eXistIdentifier + " does not exist.");
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89 docOperation.setStatus("update document: " + eXistIdentifier + " on eSciDoc server");
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90 // first: upload file to eSciDoc stage area and validate it
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91 String eSciDocStageAreaUrl = eSciDocSession.uploadFileToESciDocStageArea(destFileName);
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92 // RelaxNG schema validation
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93 Node docNode = docOperation.getDocNode();
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94 MetadataRecord mdRecord = docOperation.getMdRecord();
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95 if (mdRecord != null) {
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96 mdRecord.setMediaType("fulltext");
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97 }
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98 // second: delete all members of the container (page image reference items)
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99 String deleteFilter = "<filter name=\"/md-records/md-record/metadata/mediaType\">" + "image" + "</filter>"; // filter to find items of type image
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100 deleteContainerItems(docOperation, documentContainerId, deleteFilter);
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101 // third: update the fulltext item
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102 String fulltextItemFilter = "<filter name=\"/md-records/md-record/metadata/mediaType\">" + "fulltext" + "</filter>"; // filter to find items of type fulltext
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103 String fulltextItemsXmlStr = eSciDocSession.getMembersByContainerIdAndFilter(documentContainerId, fulltextItemFilter);
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104 String fulltextItemId = eSciDocSession.getFirstItemId(fulltextItemsXmlStr);
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105 if (fulltextItemId == null || fulltextItemId.trim().equals(""))
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106 throw new ApplicationException("Update of document is not possible: there is no fulltext item in the document container.");
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107 Date fulltextItemVersionDate = eSciDocSession.getVersionDate(fulltextItemsXmlStr);
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108 ArrayList<Component> components = new ArrayList<Component>();
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109 String existViewerUrl = "http://mpdl-proto.mpiwg-berlin.mpg.de/mpdl/page-query-result.xql?document=" + eXistIdentifier + "&amp;mode=text";
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110 String contentCategory = "fulltext XML - ECHO";
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111 if (docBase != null && docBase.equals("archimedes"))
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112 contentCategory = "fulltext XML - Archimedes";
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113 Component componentXmlFulltext = new Component("valid", "public", contentCategory, "text/xml", eSciDocStageAreaUrl, "internal-managed");
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114 Component componentExistViewer = new Component("valid", "public", contentCategory, "text/html", existViewerUrl, "external-url");
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115 components.add(componentXmlFulltext);
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116 components.add(componentExistViewer);
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117 eSciDocSession.updateItem(fulltextItemId, fulltextItemVersionDate, pid, mdRecord, components);
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118 // fourth: page items: for each page create one item
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119 SchemaHandler schemaHandler = new SchemaHandler();
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120 ArrayList<String> pbFileNamesArrayStr = schemaHandler.getPBFileNames(docNode, docBase);
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121 createPageItemsInContainer(docOperation, mdRecord, pbFileNamesArrayStr, documentContainerId);
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122 return documentContainerId;
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123 }
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124
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125 private String deleteDocument(MpdlDocOperation docOperation) throws ApplicationException {
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126 String eXistIdentifier = docOperation.getDestUrl(); // e.g. /echo/la/bla.xml
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127 String documentContainerId = eSciDocSession.getContainerIdByEXistId(eXistIdentifier);
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128 if (documentContainerId == null)
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129 throw new ApplicationException("eSciDoc: Deletion of eSciDoc container is not possible. There is no eSciDoc container for your document: " + eXistIdentifier);
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130 deleteContainer(docOperation, documentContainerId);
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131 return documentContainerId;
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132 }
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133
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134 public void deleteContainer(MpdlDocOperation docOperation, String containerId) throws ApplicationException {
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135 String eXistIdentifier = docOperation.getDestUrl(); // e.g. /echo/la/bla.xml
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136 docOperation.setStatus("delete document: " + eXistIdentifier + " on eSciDoc server");
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137 // first: delete all members
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138 deleteContainerItems(docOperation, containerId, null);
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139 // second: delete container itself
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140 eSciDocSession.deleteContainer(containerId);
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141 }
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142
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143 public void deleteContainerItems(MpdlDocOperation docOperation, String containerId, String filter) throws ApplicationException {
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144 String operationName = docOperation.getName();
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145 String eXistIdentifier = docOperation.getDestUrl();
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146 NamespaceContext nsContext = ESciDocRestSession.getNsContext();
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147 XmlUtil xmlUtil = XmlUtil.getInstance();
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148 String containerXmlStr = eSciDocSession.getContainer(containerId);
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149 Date lastModificationDate = eSciDocSession.getLastModificationDate(containerXmlStr);
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150 String membersXmlStr = eSciDocSession.getMembersByContainerIdAndFilter(containerId, filter);
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151 ArrayList<String> itemMemberIds = xmlUtil.evaluateToStringArray(membersXmlStr, "//escidocItem:item/@xlink:href", nsContext);
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152 if (itemMemberIds != null) {
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153 eSciDocSession.removeMembers(containerId, lastModificationDate, itemMemberIds);
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154 for (int i=0; i< itemMemberIds.size(); i++) {
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155 String itemId = itemMemberIds.get(i);
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156 int pageNumber = i + 1;
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157 docOperation.setStatus(operationName + " document: " + eXistIdentifier + " on eSciDoc server (delete " + pageNumber + " of " + itemMemberIds.size() + " fulltext and image reference items)");
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158 eSciDocSession.deleteItem(itemId);
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159 }
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160 }
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161 }
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162
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163 private void createPageItemsInContainer(MpdlDocOperation docOperation, MetadataRecord mdRecord, ArrayList<String> pbFileNamesArrayStr, String containerId) throws ApplicationException {
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164 if (mdRecord == null || pbFileNamesArrayStr == null || containerId == null)
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165 return;
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166 String operationName = docOperation.getName();
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167 String eXistIdentifier = docOperation.getDestUrl();
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168 ArrayList<String> memberIds = new ArrayList<String>();
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169 SchemaHandler schemaHandler = new SchemaHandler();
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170 String pageImgDir = schemaHandler.getPageImgDir(mdRecord);
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171 String docBase = docOperation.getDocBase();
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172 for (int i=0; i< 10; i++) { // TODO
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173 // for (int i=0; i< pbFileNamesArrayStr.size(); i++) {
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174 String pid = eSciDocSession.getPid();
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175 int pageNumber = i + 1;
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176 docOperation.setStatus(operationName + " document: " + eXistIdentifier + " on eSciDoc server (create " + pageNumber + " of " + pbFileNamesArrayStr.size() + " image references)");
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177 String fileName = pbFileNamesArrayStr.get(i);
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178 fileName = StringUtilEscapeChars.deresolveXmlEntities(fileName);
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179 MetadataRecord mdRecordImage = new MetadataRecord();
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180 mdRecordImage.setIdentifier(fileName);
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181 mdRecordImage.setTitle("Page: " + pageNumber);
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182 mdRecordImage.setMediaType("image");
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183 ArrayList<Component> components = new ArrayList<Component>();
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184 String imageEchoViewerUrl = "http://echo.mpiwg-berlin.mpg.de/zogilib?fn=" + pageImgDir + "/" + fileName + "&amp;pn=" + pageNumber;
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185 String imageExistViewerUrl = "http://mpdl-proto.mpiwg-berlin.mpg.de/mpdl/page-query-result.xql?document=" + eXistIdentifier + "&amp;mode=image" + "&amp;pn=" + pageNumber;
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186 String fulltextExistViewerUrl = "http://mpdl-proto.mpiwg-berlin.mpg.de/mpdl/page-query-result.xql?document=" + eXistIdentifier + "&amp;mode=text" + "&amp;pn=" + pageNumber;
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187 Component componentImageEchoViewer = new Component("valid", "public", "JPEG_DEFAULT", "text/html", imageEchoViewerUrl, "external-url");
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188 Component componentImageExistViewer = new Component("valid", "public", "JPEG_DEFAULT", "text/html", imageExistViewerUrl, "external-url");
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189 String contentCategory = "fulltext XML - ECHO";
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190 if (docBase != null && docBase.equals("archimedes"))
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191 contentCategory = "fulltext XML - Archimedes";
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192 Component componentFulltextExistViewer = new Component("valid", "public", contentCategory, "text/html", fulltextExistViewerUrl, "external-url");
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193 components.add(componentImageEchoViewer);
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194 components.add(componentImageExistViewer);
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195 components.add(componentFulltextExistViewer);
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196 Item item = eSciDocSession.createItem(pid, mdRecordImage, components);
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197 String itemId = item.getId();
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198 Date lastModificationDate = item.getLastModificationDate();
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199 eSciDocSession.submitItem(itemId, lastModificationDate, "create document");
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200 String memberId = null;
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201 if (itemId != null) {
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202 int index = itemId.indexOf(":");
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203 if (index > 0) {
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204 memberId = itemId.substring(index + 1);
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205 memberIds.add(memberId);
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206 }
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207 }
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208 }
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209 String containerXmlStr = eSciDocSession.getContainer(containerId);
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210 Date lastModificationDate = eSciDocSession.getLastModificationDate(containerXmlStr);
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211 eSciDocSession.addMembers(containerId, lastModificationDate, memberIds);
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212 }
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213 }