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package com.sun.enterprise.deployment.node;
import com.sun.enterprise.deployment.ContainerTransaction;
import com.sun.enterprise.deployment.EjbBundleDescriptor;
import com.sun.enterprise.deployment.EjbDescriptor;
import com.sun.enterprise.deployment.MethodDescriptor;
import com.sun.enterprise.deployment.xml.EjbTagNames;
import org.w3c.dom.Node;
import java.util.Iterator;
import java.util.Map;
import java.util.Vector;
/**
* This node is responsible for handling the container-transaction XML node
*
* @author Jerome Dochez
* @version
*/
public class ContainerTransactionNode extends DeploymentDescriptorNode {
private String trans_attribute;
private String description;
private Vector methods = new Vector();
/** Creates new ContainerTransactionNode */
public ContainerTransactionNode() {
registerElementHandler(new XMLElement(EjbTagNames.METHOD), MethodNode.class);
}
/**
* 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 MethodDescriptor) {
methods.add(newDescriptor);
}
}
/**
* @return the Descriptor subclass that was populated by reading
* the source XML file
*/
public Object getDescriptor() {
return null;
}
/**
* receives notification of the end of an XML element by the Parser
*
* @param element the xml tag identification
* @return true if this node is done processing the XML sub tree
*/
public boolean endElement(XMLElement element) {
boolean doneWithNode = super.endElement(element);
if (doneWithNode) {
ContainerTransaction ct = new ContainerTransaction(trans_attribute, description);
for (Iterator methodsIterator = methods.iterator();methodsIterator.hasNext();) {
MethodDescriptor md = (MethodDescriptor) methodsIterator.next();
EjbBundleDescriptor bundle = (EjbBundleDescriptor) getParentNode().getDescriptor();
EjbDescriptor ejb = bundle.getEjbByName(md.getEjbName(), true);
ejb.getMethodContainerTransactions().put(md, ct);
}
}
return doneWithNode;
}
/**
* 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 (EjbTagNames.DESCRIPTION.equals(element.getQName())) {
description = value;
}
if (EjbTagNames.TRANSACTION_ATTRIBUTE.equals(element.getQName())) {
trans_attribute = value;
}
}
/**
* write the descriptor class to a DOM tree and return it
*
* @param parent node in the DOM tree
* @param node name for the root element of this xml fragment
* @param the descriptor to write
* @return the DOM tree top node
*/
public Node writeDescriptor(Node parent, String nodeName, EjbDescriptor ejb) {
Map methodToTransactions = ejb.getMethodContainerTransactions();
MethodNode mn = new MethodNode();
for (Iterator e=methodToTransactions.keySet().iterator();e.hasNext();) {
MethodDescriptor md = (MethodDescriptor) e.next();
Node ctNode = super.writeDescriptor(parent, nodeName, ejb);
ContainerTransaction ct = (ContainerTransaction) methodToTransactions.get(md);
appendTextChild(ctNode, EjbTagNames.DESCRIPTION, ct.getDescription());
mn.writeDescriptor(ctNode, EjbTagNames.METHOD, md, ejb.getName());
appendTextChild(ctNode, EjbTagNames.TRANSACTION_ATTRIBUTE, ct.getTransactionAttribute());
}
return null;
}
}