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1
5 package net.sf.panoptes.component.jmx.jelly;
6
7 import javax.management.MalformedObjectNameException  ;
8 import javax.management.ObjectName ;
9
10 import net.sf.panoptes.model.node.NodeSupport;
11 import net.sf.panoptes.component.jmx.model.MBeanLinkNode;
12
13 import org.apache.commons.jelly.JellyTagException;
14 import org.apache.commons.jelly.TagSupport;
15 import org.apache.commons.jelly.XMLOutput;
16
17
23 public class MBeanAliasTag extends TagSupport {
24
25 private String name = null;
26 private String objectName = null;
27
28 public void doTag(XMLOutput output) throws JellyTagException {
29
30 NodeSupport parentNode;
31 NodeTag parent = (NodeTag) findAncestorWithClass(NodeTag.class);
32 if (parent != null) parentNode = parent.getNode();
33 else parentNode = (NodeSupport) getContext().getVariable("rootNode");
34
35 if (parentNode == null)
36 throw new JellyTagException("This tag must be nested within <node> or descendant of <node> or be in a context where 'rootNode' is set");
37
38 if (name == null) throw new JellyTagException("Name is not set");
39 if (objectName == null) throw new JellyTagException("ObjectName is not set");
40 ObjectName linkName;
41 try {
42 linkName = new ObjectName (objectName);
43 MBeanLinkNode node = new MBeanLinkNode(parentNode, linkName);
44 parentNode.getContext().put(name, node);
45 getContext().setVariable(name, node);
46 } catch (MalformedObjectNameException e) {
47 throw new JellyTagException("Invalid objectname " + objectName, e);
48 }
49 }
50
51 public void setName(String name) {
52 this.name = name;
53 }
54
55 public void setObjectName(String objectName) {
56 this.objectName = objectName;
57 }
58
59 }
60 |
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