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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
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 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 */

package org.glassfish.ejb.deployment.node.runtime;

import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.glassfish.ejb.deployment.descriptor.ActivationConfigDescriptor;
import org.glassfish.ejb.deployment.descriptor.EjbMessageBeanDescriptor;
import org.w3c.dom.Node;

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.RuntimeTagNames;

/**
 * This class is responsible for handling the activation config elements.
 *
 * @author Qingqing Ouyang
 * @version 
 */
public class ActivationConfigNode extends DeploymentDescriptorNode {

    private ActivationConfigDescriptor descriptor = null;
    private String propertyName = null;

    public ActivationConfigNode() {
        super();
        registerElementHandler(
                new XMLElement(RuntimeTagNames.ACTIVATION_CONFIG),
                ActivationConfigNode.class,
                "setRuntimeActivationConfigDescriptor");
    }

    @Override
    public ActivationConfigDescriptor getDescriptor() {
        if (descriptor == null) {
            descriptor = ((EjbMessageBeanDescriptor) getParentNode().getDescriptor()).getRuntimeActivationConfigDescriptor();
        } 
        return descriptor;
    }

    @Override
    protected Map getDispatchTable() {
        // no need to be synchronized for now
        return super.getDispatchTable();
    }

    @Override
    public void setElementValue(XMLElement element, String value) {    
        if (RuntimeTagNames.ACTIVATION_CONFIG_PROPERTY_NAME.equals
                (element.getQName())) {
            propertyName = value;
        } else if(RuntimeTagNames.ACTIVATION_CONFIG_PROPERTY_VALUE.equals
                (element.getQName())) {
            EnvironmentProperty prop = 
                new EnvironmentProperty(propertyName, value, "");
            descriptor.getActivationConfig().add(prop);
            propertyName = null;
        }
        else super.setElementValue(element, value);
    }

    @Override
    public Node writeDescriptor(Node parent, String nodeName, 
                                ActivationConfigDescriptor descriptor) {

        Node activationConfigNode = null;
        Set activationConfig = descriptor.getActivationConfig();
        if( activationConfig.size() > 0 ) {
            activationConfigNode = appendChild(parent, nodeName);
            for(Iterator iter = activationConfig.iterator(); iter.hasNext();) {
                Node activationConfigPropertyNode = 
                    appendChild(activationConfigNode, 
                                RuntimeTagNames.ACTIVATION_CONFIG_PROPERTY);
                EnvironmentProperty next = (EnvironmentProperty) iter.next();
                appendTextChild(activationConfigPropertyNode, 
                        RuntimeTagNames.ACTIVATION_CONFIG_PROPERTY_NAME, 
                        next.getName());
                appendTextChild(activationConfigPropertyNode,
                        RuntimeTagNames.ACTIVATION_CONFIG_PROPERTY_VALUE, 
                        next.getValue());
            }
        }
        
        return activationConfigNode;
    }
}