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comparison software/eXist/mpdl-modules/src/org/exist/xquery/modules/mpdltext/ExternalObject.java @ 9:1ec29fdd0db8

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neue .lex Dateien f?r Normalisierung / externe Objekte update
author Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
date Tue, 22 Feb 2011 16:03:45 +0100
parents 2396a569e446
children 5df60f24e997
comparison
equal deleted inserted replaced
8:d2a1c14fde31 9:1ec29fdd0db8
21 * $Id: TextModule.java $ 21 * $Id: TextModule.java $
22 */ 22 */
23 package org.exist.xquery.modules.mpdltext; 23 package org.exist.xquery.modules.mpdltext;
24 24
25 import java.util.ArrayList; 25 import java.util.ArrayList;
26 import java.util.Date;
27 26
28 import org.exist.dom.QName; 27 import org.exist.dom.QName;
29 import org.exist.xquery.BasicFunction; 28 import org.exist.xquery.BasicFunction;
30 import org.exist.xquery.Cardinality; 29 import org.exist.xquery.Cardinality;
31 import org.exist.xquery.FunctionSignature; 30 import org.exist.xquery.FunctionSignature;
37 import org.exist.xquery.value.Type; 36 import org.exist.xquery.value.Type;
38 import org.exist.xquery.value.ValueSequence; 37 import org.exist.xquery.value.ValueSequence;
39 38
40 import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException; 39 import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException;
41 import de.mpg.mpiwg.berlin.mpdl.externalObjects.app.ExtElement; 40 import de.mpg.mpiwg.berlin.mpdl.externalObjects.app.ExtElement;
41 import de.mpg.mpiwg.berlin.mpdl.externalObjects.app.ExtObject;
42 import de.mpg.mpiwg.berlin.mpdl.externalObjects.app.ExtQuery;
42 import de.mpg.mpiwg.berlin.mpdl.externalObjects.app.ExternalObjectsHandler; 43 import de.mpg.mpiwg.berlin.mpdl.externalObjects.app.ExternalObjectsHandler;
43 44
44 /** 45 /**
45 * @author Josef Willenborg (jwillenborg@mpiwg-berlin.mpg.de) 46 * @author Josef Willenborg (jwillenborg@mpiwg-berlin.mpg.de)
46 */ 47 */
59 super(context, signature); 60 super(context, signature);
60 } 61 }
61 62
62 public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException { 63 public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
63 Sequence operation = args[0]; // read, update or delete 64 Sequence operation = args[0]; // read, update or delete
64 Sequence type = args[1]; 65 Sequence type = args[1]; // element, query
65 Sequence object = args[2]; 66 Sequence object = args[2]; // the object as an xml string
66 if (operation.isEmpty() || type.isEmpty()) 67 if (operation.isEmpty() || type.isEmpty() || object.isEmpty())
67 return Sequence.EMPTY_SEQUENCE; 68 return Sequence.EMPTY_SEQUENCE;
68 String operationStr = operation.getStringValue(); 69 String operationStr = operation.getStringValue();
69 String typeStr = type.getStringValue(); 70 String typeStr = type.getStringValue();
70 String objectStr = object.getStringValue(); 71 String objectStr = object.getStringValue();
71 72
72 ValueSequence result = null; 73 ValueSequence result = null;
73 String resultStr = ""; 74 String resultStr = "";
74 try { 75 try {
76 ExternalObjectsHandler externalObjectsHandler = ExternalObjectsHandler.getInstance();
75 if (typeStr.equals("element")) { 77 if (typeStr.equals("element")) {
76 ExtElement e = ExtElement.parseXmlStr(objectStr); 78 ExtElement e = ExtElement.parseXmlStr(objectStr);
77 if (operation.equals("create") || operation.equals("update")) {
78 Date now = new Date();
79 e.setModificationDate(now);
80 }
81 String documentId = e.getDocumentId();
82 String pageNumber = e.getPageNumber();
83 if (operationStr.equals("read")) { 79 if (operationStr.equals("read")) {
84 ExternalObjectsHandler externalObjectsHandler = ExternalObjectsHandler.getInstance(); 80 ArrayList<ExtElement> elems = externalObjectsHandler.readExternalElements(e);
85 ArrayList<ExtElement> elems = externalObjectsHandler.readExternalElements(documentId, pageNumber);
86 if (elems != null && elems.size() > 0) { 81 if (elems != null && elems.size() > 0) {
87 resultStr = "<result>"; 82 resultStr = "<result>";
88 for (int i=0; i<elems.size(); i++) { 83 for (int i=0; i<elems.size(); i++) {
89 ExtElement elem = elems.get(i); 84 ExtElement elem = elems.get(i);
90 String elemXmlStr = elem.getXmlString(); 85 String elemXmlStr = elem.getXmlString();
91 resultStr = resultStr + elemXmlStr; 86 resultStr = resultStr + elemXmlStr;
92 } 87 }
93 resultStr = resultStr + "</result>"; 88 resultStr = resultStr + "</result>";
94 } 89 }
95 } else if (operationStr.equals("create")) { 90 } else if (operationStr.equals("create")) {
96 // TODO 91 externalObjectsHandler.createExternalElement(e);
97 } else if (operationStr.equals("update")) { 92 } else if (operationStr.equals("update")) {
98 // TODO 93 externalObjectsHandler.updateExternalElement(e);
99 } else if (operationStr.equals("delete")) { 94 } else if (operationStr.equals("delete")) {
100 // TODO 95 externalObjectsHandler.deleteExternalElement(e);
101 } 96 }
102 } else if (typeStr.equals("query")) { 97 } else if (typeStr.equals("query")) {
103 // TODO 98 ExtQuery q = ExtQuery.parseXmlStr(objectStr);
99 if (operationStr.equals("read")) {
100 ArrayList<ExtObject> objects = externalObjectsHandler.readExternalObjects(q);
101 if (objects != null && objects.size() > 0) {
102 resultStr = "<result>";
103 for (int i=0; i<objects.size(); i++) {
104 ExtObject obj = objects.get(i);
105 String elemXmlStr = obj.getXmlString();
106 resultStr = resultStr + elemXmlStr;
107 }
108 resultStr = resultStr + "</result>";
109 }
110 } else if (operationStr.equals("create")) {
111 externalObjectsHandler.createExternalObject(q);
112 } else if (operationStr.equals("update")) {
113 externalObjectsHandler.updateExternalObject(q);
114 } else if (operationStr.equals("delete")) {
115 externalObjectsHandler.deleteExternalObject(q);
116 }
104 } 117 }
105 result = new ValueSequence(); 118 result = new ValueSequence();
106 result.add(new StringValue(resultStr)); 119 result.add(new StringValue(resultStr));
107 } catch (ApplicationException e) { 120 } catch (ApplicationException e) {
108 throw new XPathException(e); 121 throw new XPathException(e);