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1 package com.genimen.djeneric.web.controller;
2
3 import java.io.IOException  ;
4
5 import javax.servlet.ServletException ;
6 import javax.servlet.http.HttpServletRequest ;
7 import javax.servlet.http.HttpServletResponse ;
8
9 import org.w3c.dom.Document ;
10
11 import com.genimen.djeneric.repository.exceptions.DjenericException;
12 import com.genimen.djeneric.web.renderers.TreeRenderer;
13 import com.genimen.djeneric.web.renderers.tree.AbstractWebNode;
14 import com.genimen.djeneric.web.renderers.tree.WebTree;
15 import com.genimen.djeneric.web.util.DjenericSessionManager;
16 import com.genimen.djeneric.web.util.DjenericXSLTransform;
17
18 public class TreeCommand
19 {
20 TreeRenderer _renderer = new TreeRenderer();
21
22 public void get(DjenericSessionManager sessionManager, HttpServletRequest request, HttpServletResponse response)
23 throws IOException , ServletException , DjenericException
24 {
25 try
26 {
27 WebTree tree = sessionManager.getTree();
28 DjenericXSLTransform xsl = sessionManager.getTransformer();
29
30 response.setContentType("text/html; charset=UTF-8");
31
32 String nodeId = request.getParameter("nodeid");
33 if (nodeId != null)
34 {
35 String cmd = request.getParameter("cmd");
36 if ("toggle".equals(cmd)) tree.toggleExpanded(nodeId);
37 else if ("expand".equals(cmd)) tree.expandAll(nodeId);
38 else if ("collapse".equals(cmd)) tree.collapseAll(nodeId);
39 else if ("refresh".equals(cmd))
40 {
41 AbstractWebNode node = tree.getNode(nodeId);
42 node.reload();
43 }
44
45 tree.setSelectedNode(nodeId);
46
47 Document doc = _renderer.asXml(tree, nodeId);
48
49 String page = xsl.transform(doc, "tree/subtree.xsl");
50 response.getWriter().print(page);
51 }
52 else
53 {
54 throw new DjenericException("Parameter nodeid not defined");
55 }
56 }
57 catch (Exception e)
58 {
59 throw new ServletException (e);
60 }
61 }
62 }
63 |
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