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Java > Open Source Codes > de > webman > sitetree > eventhandler > STDeleteDocumentHandler


1 package de.webman.sitetree.eventhandler;
2
3 import com.teamkonzept.web.*;
4 import com.teamkonzept.webman.*;
5 import com.teamkonzept.webman.db.TKWebmanDBManager;
6 import com.teamkonzept.webman.mainint.*;
7 import com.teamkonzept.webman.mainint.db.*;
8
9
10 import com.teamkonzept.webman.mainint.db.queries.*;
11 import com.teamkonzept.webman.mainint.events.*;
12 import com.teamkonzept.lib.*;
13 import com.teamkonzept.field.*;
14 import com.teamkonzept.field.db.*;
15 import com.teamkonzept.db.*;
16 import com.teamkonzept.international.LanguageManager;
17 import com.teamkonzept.publishing.markups.*;
18
19 import java.sql.*;
20 import java.io.*;
21 import java.util.*;
22
23 /**
24  * Loeschen eines Documents
25  *
26  * @author $Author: alex $
27  * @version $Revision: 1.6 $
28  */
29 public class STDeleteDocumentHandler extends DefaultEventHandler implements ParameterTypes, FrameConstants, DatabaseDefaults
30 {
31     private STDeleteDocumentHandler()
32     {}
33     
34     private static STDeleteDocumentHandler instance = new STDeleteDocumentHandler();
35     
36     public static STDeleteDocumentHandler getInstance()
37     {
38         return instance;
39     }
40     
41     public void handleEvent(TKEvent evt) throws TKException
42     {
43         try
44         {
45             WebManEvent.checkEvent(evt.getRemoteUser(), evt.getName(), ContextConstants.SITE_TREE);
46             Integer JavaDoc siteNodeId = new Integer JavaDoc(evt.getParameter( PARAMETER, "SITE_NODE_ID" ));
47             Integer JavaDoc siteNodeDocIdx = new Integer JavaDoc(evt.getParameter( PARAMETER, "SITE_NODE_DOC_IDX" ));
48             String JavaDoc docShortName = evt.getParameter(PARAMETER, "DOCUMENT_SHORTNAME");
49             // Abhaengigkeiten checken !!
50 TKVector depends = new TKVector();
51             if (SiteTreeUtils.checkReferences(siteNodeId, docShortName, depends))
52             {
53                 TKHTMLTemplate error = evt.getPrepHTMLTemplate( "error_message.tmpl" );
54                 String JavaDoc errorText = LanguageManager.getText("sitestructure", "DEPENDENCY");
55                 error.set("ERROR_TEXT", errorText);
56                 error.setListIterator( new TKStandardPluginIterator("REFERENCES", null, depends, false, error.getListIterator()));
57                 evt.finishTemplate(error);
58                 return;
59             }
60             TKQuery q = TKDBManager.newQuery(TKDBSiteDocDelete.class);
61             q.setQueryParams( "SITE_NODE_ID", siteNodeId);
62             q.setQueryParams( "SITE_NODE_DOC_IDX", siteNodeDocIdx);
63             q.execute();
64             q.fetchResultSet();
65             STEditHandler.getInstance().handleEvent(evt);
66         }
67         catch (Throwable JavaDoc e)
68         {
69             // TO DO : Analyze Exception !
70 throw WebmanExceptionHandler.getException(e);
71         }
72     }
73     
74     public boolean isHandler(TKEvent evt)
75     {
76         return evt.getName().equalsIgnoreCase("ST_DELETE_DOCUMENT");
77     }
78 }
79
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