source: main/branches/64_bit_Greenstone/greenstone3/src/java/org/greenstone/gsdl3/action/FormatAction.java@ 24132

Last change on this file since 24132 was 24132, checked in by sjb48, 13 years ago

Saving of the format statement to the collectionConfig is now possible. The bug with select boxes where the selected item was not saved has now been fixed.
File size: 7.1 KB
Line 
1package org.greenstone.gsdl3.action;
2
3import org.greenstone.gsdl3.core.ModuleInterface;
4import org.greenstone.gsdl3.util.*;
5import org.greenstone.util.GlobalProperties;
6
7// XML classes
8import org.w3c.dom.Node;
9import org.w3c.dom.Element;
10import org.w3c.dom.Document;
11
12// other java stuff
13import java.io.File;
14import java.util.HashMap;
15import java.util.*;
16import java.io.StringReader;
17import org.xml.sax.InputSource;
18import javax.xml.parsers.DocumentBuilder;
19import javax.xml.parsers.DocumentBuilderFactory;
20
21import java.io.*;
22import org.xml.sax.*;
23import javax.xml.parsers.SAXParserFactory;
24import javax.xml.parsers.ParserConfigurationException;
25import javax.xml.parsers.SAXParser;
26
27import java.io.PrintWriter;
28import java.io.StringWriter;
29
30import org.apache.log4j.*;
31
32public class FormatAction extends Action {
33
34 static Logger logger = Logger.getLogger(org.greenstone.gsdl3.action.FormatAction.class.getName());
35 XMLTransformer transformer = null;
36
37 String tempVal = "";
38
39 /** process a request */
40 public Node process (Node message_node) {
41
42 Element message = this.converter.nodeToElement(message_node);
43
44 // assume only one request
45 Element request = (Element)GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
46
47 String subaction = request.getAttribute(GSXML.SUBACTION_ATT);
48 String lang = request.getAttribute(GSXML.LANG_ATT);
49 String uid = request.getAttribute(GSXML.USER_ID_ATT);
50 // get the param list
51 Element cgi_param_list = (Element)GSXML.getChildByTagName(request, GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
52 HashMap params = GSXML.extractParams(cgi_param_list, false);
53
54 Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
55
56 String coll = (String)params.get(GSParams.COLLECTION); //SYSTEM_CLUSTER);
57 //String subaction = (String)params.get(GSParams.SUBACTION);
58 String service = (String)params.get(GSParams.SERVICE);
59 String classifier = (String)params.get("cl");
60
61
62 logger.error("Collection="+coll);
63 logger.error("Subaction="+subaction);
64 logger.error("Service="+service);
65 logger.error("Classifier="+classifier);
66
67
68 String to = "";
69 if (coll!=null && !coll.equals("")) {
70 to = coll;
71 }
72
73 Element mr_request_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
74 Element mr_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_FORMAT_STRING, to, lang, uid);
75
76 mr_request.setAttribute("service", service);
77 mr_request.setAttribute("subaction", subaction);
78 //if(classifier != null)
79 mr_request.setAttribute("classifier", classifier);
80
81 mr_request_message.appendChild(mr_request);
82
83 //Element format = this.doc.createElement(GSXML.FORMAT_STRING_ELEM);
84 //mr_request.appendChild(format);
85
86 String format_string = (String)params.get("data");
87 //logger.error("Original format string");
88 //logger.error(format_string);
89
90 Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
91
92 Iterator it = params.keySet().iterator();
93 //while(it.hasNext())
94 //{
95 // logger.error("Param: "+it.next());
96 //}
97
98 try {
99 //DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
100 //DocumentBuilder builder = factory.newDocumentBuilder();
101 //String input = "<html><head><title></title></head><body>" + format_string + "</body></html>";
102 //String input = format_string;
103 //InputSource is = new InputSource( new StringReader( input ) );
104 //Document d = (Document) builder.parse( is );
105 Document d = this.converter.getDOM(format_string); //(Document) builder.parse( is );
106 //Node n1 = d.getFirstChild();
107 //Document d2 = (Document) this.doc.importNode(e, true);
108
109 //Element format_statement = this.doc.importNode(d, true);
110
111 // Call XSLT to transform document to xml format string
112 XMLTransformer transformer = new XMLTransformer();
113 // HOW DO I DO THIS PROPERLY?
114 //String style = stylesheetFile(String gsdl3_home, String site_name, String collection, String interface_name, ArrayList base_interfaces, String filename);
115 //Document style_doc = this.converter.getDOM(new File(style), "UTF-8"); //"/home/sam/greenstone3/web/interfaces/oran/transform/formatString.xsl"), "UTF-8"); /*************************/
116 Document style_doc = this.converter.getDOM(new File("/research/sjb48/greenstone3/web/interfaces/oran/transform/formatString.xsl"), "UTF-8"); /*************************/
117
118 if(style_doc == null)
119 logger.error("style_doc is null");
120
121 // not sure what to do here - some code from Transforming Receptionist
122 //String transformed = transformer.transformToString(style_doc, d);
123 logger.error("About to transform");
124 Node transformed = (Node) transformer.transform(style_doc, d); // Failing org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted. ; SystemID: file:///home/sam/greenstone3/packages/tomcat/bin/dummy.xsl
125
126 logger.error("Transform successful?");
127
128 if(transformed==null) // not null
129 logger.error("TRANSFORMED IS NULL");
130
131 if(transformed.getNodeType() == Node.DOCUMENT_NODE)
132 transformed = ((Document)transformed).getDocumentElement();
133 logger.error("Node type: "+transformed.getNodeType());
134
135 //logger.error("begin import");
136 //Node imported = this.doc.importNode(transformed, true); // There was an exception org.w3c.dom.DOMException: NOT_SUPPORTED_ERR: The implementation does not support the requested type of object or operation.
137 //logger.error("finished import");
138
139 //String format_string2 = GSXML.xmlNodeToString(imported); // null pointer exception occuring here
140 //logger.error("format string="+format_string2);
141
142 Element format = this.doc.createElement(GSXML.FORMAT_STRING_ELEM);
143 //GSXML.setNodeText(format, transformed);
144 format.appendChild(this.doc.importNode(transformed,true));
145 //format.setNodeValue(transformed);
146 mr_request.appendChild(format);
147 logger.error("Transformed: "+transformed);
148
149
150 //page_response.appendChild(this.doc.importNode(e, true));
151 } catch( Exception ex ) {
152 logger.error("There was an exception "+ex);
153
154 StringWriter sw = new StringWriter();
155 PrintWriter pw = new PrintWriter(sw, true);
156 ex.printStackTrace(pw);
157 pw.flush();
158 sw.flush();
159 logger.error(sw.toString());
160 }
161
162
163 // Call XSLT to transform document to xml format string
164 //XMLTransformer transformer = new XMLTransformer();
165
166 // not sure what to do here - some code from Transforming Receptionist
167 //transformer.transformToString(Document stylesheet, Document source);
168
169 // create a mesage to send to the collection object via the message router
170
171 Node response_message = this.mr.process(mr_request_message);
172
173 result.appendChild(GSXML.duplicateWithNewName(this.doc, (Element)GSXML.getChildByTagName(response_message, GSXML.RESPONSE_ELEM), GSXML.RESPONSE_ELEM, true));
174 return result;
175
176 }
177
178}
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