Package com.sun.enterprise.deployment.node.runtime

Source Code of com.sun.enterprise.deployment.node.runtime.ResourceRefNode

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

import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.logging.Level;
import org.w3c.dom.Node;

import com.sun.enterprise.deployment.types.ResourceReferenceContainer;
import com.sun.enterprise.deployment.ResourceReferenceDescriptor;
import com.sun.enterprise.deployment.MailConfiguration;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.xml.RuntimeTagNames;
import com.sun.enterprise.deployment.ResourcePrincipal;
import com.sun.enterprise.deployment.util.DOLUtils;

/**
* This node handles the runtime deployment descriptors for resource-ref tag
*
* @author  Jerome Dochez
* @version
*/
public class ResourceRefNode extends DeploymentDescriptorNode {

    ResourceReferenceDescriptor descriptor=null;
   
    /** Creates new ResourceRefNode */
    public ResourceRefNode() {       
        registerElementHandler(new XMLElement(RuntimeTagNames.DEFAULT_RESOURCE_PRINCIPAL),
                               DefaultResourcePrincipalNode.class, "setResourcePrincipal");                
    }

   /**
    * @return the descriptor instance to associate with this XMLNode
    */   
    public Object getDescriptor() {
        return descriptor;
    }           
   
    /**
     * 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(RuntimeTagNames.JNDI_NAME, "setJndiName");
        return table;
    }
   
    /**
     * receives notiification of the value for a particular tag
     *
     * @param element the xml element
     * @param value it's associated value
     */
    public void setElementValue(XMLElement element, String value) {
        if (RuntimeTagNames.RESOURCE_REFERENCE_NAME.equals(element.getQName())) {
            Object parentDesc = getParentNode().getDescriptor();
            if (parentDesc instanceof ResourceReferenceContainer) {
                try {
                    descriptor = ((ResourceReferenceContainer) parentDesc).getResourceReferenceByName(value);
                    DOLUtils.getDefaultLogger().fine("Applying res-ref " + value + " runtime settings to " + descriptor);
                } catch (IllegalArgumentException iae) {
                    DOLUtils.getDefaultLogger().warning(iae.getMessage());
                }
            }
        } else super.setElementValue(element, value);
    }
   
    /**
     * Adds  a new DOL descriptor instance to the descriptor instance associated with
     * this XMLNode
     *
     * @param descriptor the new descriptor
     */   
    public void addDescriptor(Object newDescriptor) {   
        if (newDescriptor instanceof ResourcePrincipal) {
            descriptor.setResourcePrincipal((ResourcePrincipal) newDescriptor);
        } else if (newDescriptor instanceof MailConfiguration) {
            descriptor.setMailConfiguration((MailConfiguration) newDescriptor);
        } else {
            DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.addDescriptorFailure",
                    new Object[]{"In " + this + " do not know what to do with " + newDescriptor});
        }
    }
   
    /**
     * write the descriptor class to a DOM tree and return it
     *
     * @param parent node for the DOM tree
     * @param node name for the descriptor
     * @param the descriptor to write
     * @return the DOM tree top node
     */   
    public Node writeDescriptor(Node parent, String nodeName, ResourceReferenceDescriptor rrDescriptor) {       
        Node rrNode = super.writeDescriptor(parent, nodeName, descriptor);
        appendTextChild(rrNode, RuntimeTagNames.RESOURCE_REFERENCE_NAME, rrDescriptor.getName());
        appendTextChild(rrNode, RuntimeTagNames.JNDI_NAME, rrDescriptor.getJndiName());
        if (rrDescriptor.getResourcePrincipal() != null) {
            DefaultResourcePrincipalNode drpNode = new DefaultResourcePrincipalNode();
            drpNode.writeDescriptor(rrNode, RuntimeTagNames.DEFAULT_RESOURCE_PRINCIPAL,
                                    rrDescriptor.getResourcePrincipal());
        }
        return rrNode;
    }
   
    /**
     * writes all the runtime information for resources references
     *
     * @param parent node to add the runtime xml info
     * @param the J2EE component containing ejb references
     */   
    public static void writeResourceReferences(Node parent, ResourceReferenceContainer descriptor) {
       
        // resource-ref*
        Iterator rrs = descriptor.getResourceReferenceDescriptors().iterator();
        if (rrs.hasNext()) {
           
            ResourceRefNode rrNode = new ResourceRefNode();               
            while (rrs.hasNext()) {
                rrNode.writeDescriptor(parent, RuntimeTagNames.RESOURCE_REFERENCE,
                    (ResourceReferenceDescriptor) rrs.next());
            }
        } 
    }   
}
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