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package com.sun.enterprise.deployment.node.connector;
import org.glassfish.deployment.common.Descriptor;
import com.sun.enterprise.deployment.InboundResourceAdapter;
import com.sun.enterprise.deployment.MessageListener;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.DescriptorFactory;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.xml.ConnectorTagNames;
import org.w3c.dom.Node;
import java.util.Iterator;
import java.util.Map;
/**
* This node is responsible for handling the Connector DTD related message-listener XML tag
*
* @author Sheetal Vartak
* @version
*/
public class MessageListenerNode extends DeploymentDescriptorNode {
private MessageListener msgListener = null;
public MessageListenerNode() {
registerElementHandler(new XMLElement(ConnectorTagNames.ACTIVATION_SPEC),
ActivationSpecNode.class);
}
/**
* all sub-implementation of this class can use a dispatch table to map xml element to
* method name on the descriptor class for setting the element value.
*
* @return the map with the element name as a key, the setter method as a value
*/
protected Map getDispatchTable() {
Map table = super.getDispatchTable();
table.put(ConnectorTagNames.MSG_LISTENER_TYPE, "setMessageListenerType");
return table;
}
/**
* @return the descriptor instance to associate with this XMLNode
*/
public Object getDescriptor() {
if (msgListener == null) {
msgListener = (MessageListener) DescriptorFactory.getDescriptor(getXMLPath());
}
return msgListener;
}
/**
* write the descriptor class to a DOM tree and return it
*
* @param parent node for the DOM tree
* @param the descriptor to write
* @return the DOM tree top node
*/
public Node writeDescriptor(Node parent, Descriptor descriptor) {
if (! (descriptor instanceof InboundResourceAdapter)) {
throw new IllegalArgumentException(getClass() + " cannot handle descriptors of type " + descriptor.getClass());
}
Iterator msgListeners = ((InboundResourceAdapter)descriptor).getMessageListeners().iterator();
if (!msgListeners.hasNext()) {
throw new RuntimeException("There must be at least one messagelistener for this inbound resource adapter");
}
//message listeners
for (;msgListeners.hasNext();) {
MessageListener msgListener = (MessageListener) msgListeners.next();
Node msgListenerNode = appendChild(parent, ConnectorTagNames.MSG_LISTENER);
appendTextChild(msgListenerNode, ConnectorTagNames.MSG_LISTENER_TYPE, msgListener.getMessageListenerType());
//activation spec node
ActivationSpecNode actSpecNode = new ActivationSpecNode();
msgListenerNode = actSpecNode.writeDescriptor(msgListenerNode, msgListener);
}
return parent;
}
}