ActivationSpecNode.java

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package com.sun.enterprise.deployment.node.connector;

import org.glassfish.deployment.common.Descriptor;
import com.sun.enterprise.deployment.MessageListener;
import com.sun.enterprise.deployment.ConnectorConfigProperty;
import com.sun.enterprise.deployment.EnvironmentProperty;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.xml.ConnectorTagNames;
import org.w3c.dom.Node;

import java.util.Map;

/**
 * This node is responsible for handling the Connector DTD related activationspec XML tag
 *
 * @author  Sheetal Vartak
 * @version 
 */
public class ActivationSpecNode extends DeploymentDescriptorNode {
    
    private MessageListener msgListener = null;
    
    public ActivationSpecNode() {
	    registerElementHandler(new XMLElement(ConnectorTagNames.REQUIRED_CONFIG_PROP),
			       RequiredConfigNode.class);
        registerElementHandler(new XMLElement(ConnectorTagNames.CONFIG_PROPERTY),
                       ConfigPropertyNode.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.ACTIVATION_SPEC_CLASS, "setActivationSpecClass");
        return table;
    }  

    /**
    * @return the descriptor instance to associate with this XMLNode
    */    
    public Object getDescriptor() {
        if (msgListener == null) {
            msgListener = (MessageListener) getParentNode().getDescriptor();
        } 
        return msgListener;
    } 

    /**
     * Adds  a new DOL descriptor instance to the descriptor instance associated with 
     * this XMLNode
     *
     * @param descriptor the new descriptor
     */
    public void addDescriptor(Object obj) {
        if (obj instanceof ConnectorConfigProperty) {
            msgListener.addConfigProperty((ConnectorConfigProperty)obj);
        }else if (obj instanceof EnvironmentProperty){
            msgListener.addRequiredConfigProperty((EnvironmentProperty)obj);
        }
    }

    /**
     * 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 MessageListener)) {
            throw new IllegalArgumentException(getClass() + " cannot handle descriptors of type " + descriptor.getClass());
        }

	MessageListener msgListener = (MessageListener)descriptor;
	Node actSpecNode = appendChild(parent, ConnectorTagNames.ACTIVATION_SPEC);
	appendTextChild(actSpecNode, ConnectorTagNames.ACTIVATION_SPEC_CLASS, msgListener.getActivationSpecClass());

	//required-config-property
	RequiredConfigNode reqNode = new RequiredConfigNode();
	actSpecNode = reqNode.writeDescriptor(actSpecNode, msgListener);

    ConfigPropertyNode configPropertyNode = new ConfigPropertyNode();
    configPropertyNode.writeDescriptor(actSpecNode, msgListener);
	return parent;
    }
}