| 1 | package org.greenstone.gsdl3.action;
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| 2 |
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| 3 | import org.greenstone.gsdl3.core.ModuleInterface;
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| 4 | import org.greenstone.gsdl3.util.*;
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| 5 |
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| 6 | // XML classes
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| 7 | import org.w3c.dom.Node;
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| 8 | import org.w3c.dom.Element;
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| 9 | import org.w3c.dom.Document;
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| 10 |
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| 11 | // other java stuff
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| 12 | import java.io.File;
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| 13 | import java.util.HashMap;
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| 14 | import java.util.*;
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| 15 | import java.io.StringReader;
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| 16 | import org.xml.sax.InputSource;
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| 17 | import javax.xml.parsers.DocumentBuilder;
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| 18 | import javax.xml.parsers.DocumentBuilderFactory;
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| 19 |
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| 20 | import java.io.*;
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| 21 | import org.xml.sax.*;
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| 22 | import javax.xml.parsers.SAXParserFactory;
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| 23 | import javax.xml.parsers.ParserConfigurationException;
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| 24 | import javax.xml.parsers.SAXParser;
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| 25 |
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| 26 | import java.io.PrintWriter;
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| 27 | import java.io.StringWriter;
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| 28 |
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| 29 | import org.apache.log4j.*;
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| 30 |
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| 31 | public class FormatAction extends Action {
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| 32 |
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| 33 | static Logger logger = Logger.getLogger(org.greenstone.gsdl3.action.FormatAction.class.getName());
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| 34 |
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| 35 | String tempVal = "";
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| 36 |
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| 37 | /** process a request */
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| 38 | public Node process (Node message_node) {
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| 39 |
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| 40 | Element message = this.converter.nodeToElement(message_node);
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| 41 |
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| 42 | // assume only one request
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| 43 | Element request = (Element)GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
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| 44 |
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| 45 | String subaction = request.getAttribute(GSXML.SUBACTION_ATT);
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| 46 | String lang = request.getAttribute(GSXML.LANG_ATT);
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| 47 | String uid = request.getAttribute(GSXML.USER_ID_ATT);
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| 48 | // get the param list
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| 49 | Element cgi_param_list = (Element)GSXML.getChildByTagName(request, GSXML.PARAM_ELEM+GSXML.LIST_MODIFIER);
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| 50 | HashMap params = GSXML.extractParams(cgi_param_list, false);
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| 51 |
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| 52 | Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
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| 53 |
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| 54 | String coll = (String)params.get(GSParams.COLLECTION); //SYSTEM_CLUSTER);
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| 55 |
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| 56 | String to = "";
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| 57 | if (coll!=null && !coll.equals("")) {
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| 58 | to = coll;
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| 59 | }
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| 60 |
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| 61 | Element mr_request_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
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| 62 | Element mr_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_FORMAT_STRING, to, lang, uid);
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| 63 | mr_request_message.appendChild(mr_request);
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| 64 |
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| 65 | Element format = this.doc.createElement(GSXML.FORMAT_STRING_ELEM);
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| 66 | mr_request.appendChild(format);
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| 67 |
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| 68 | String format_string = (String)params.get("data");
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| 69 |
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| 70 | Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
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| 71 |
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| 72 | Iterator it = params.keySet().iterator();
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| 73 | while(it.hasNext())
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| 74 | {
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| 75 | logger.error("Param: "+it.next());
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| 76 | }
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| 77 |
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| 78 | try {
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| 79 | DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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| 80 | DocumentBuilder builder = factory.newDocumentBuilder();
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| 81 | //String input = "<html><head><title></title></head><body>" + format_string + "</body></html>";
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| 82 | String input = format_string;
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| 83 | InputSource is = new InputSource( new StringReader( input ) );
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| 84 | Document d = builder.parse( is );
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| 85 | Element e = d.getDocumentElement();
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| 86 |
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| 87 | page_response.appendChild(this.doc.importNode(e, true));
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| 88 | } catch( Exception ex ) {
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| 89 | logger.error("There was an exception "+ex);
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| 90 |
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| 91 | StringWriter sw = new StringWriter();
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| 92 | PrintWriter pw = new PrintWriter(sw, true);
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| 93 | ex.printStackTrace(pw);
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| 94 | pw.flush();
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| 95 | sw.flush();
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| 96 | logger.error(sw.toString());
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| 97 | }
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| 98 |
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| 99 |
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| 100 | // Call XSLT to transform document to xml format string
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| 101 | this.transformer = new XMLTransformer();
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| 102 |
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| 103 | // not sure what to do here - some code from Transforming Receptionist
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| 104 |
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| 105 | // create a mesage to send to the collection object via the message router
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| 106 |
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| 107 | Node response_message = this.mr.process(mr_request_message);
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| 108 |
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| 109 | result.appendChild(GSXML.duplicateWithNewName(this.doc, (Element)GSXML.getChildByTagName(response_message, GSXML.RESPONSE_ELEM), GSXML.RESPONSE_ELEM, true));
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| 110 | return result;
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| 111 |
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| 112 | }
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| 113 |
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| 114 | }
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