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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.
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 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
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 *
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 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

/*
 * SecurityConstraintNode.java
 *
 * Created on March 1, 2002, 2:24 PM
 */

package org.glassfish.web.deployment.node;

import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.web.WebResourceCollection;
import org.glassfish.web.deployment.descriptor.*;
import org.glassfish.web.deployment.xml.WebTagNames;
import org.w3c.dom.Node;

import java.util.Enumeration;
import java.util.Map;

/** 
 * This node handles the security-contraint xml tag
 *
 * @author  Jerome Dochez
 * @version 
 */
public class SecurityConstraintNode extends DeploymentDescriptorNode {

    public SecurityConstraintNode() {
        super();
        registerElementHandler(new XMLElement(WebTagNames.USERDATA_CONSTRAINT), 
                    UserDataConstraintNode.class, "setUserDataConstraint");
        registerElementHandler(new XMLElement(WebTagNames.AUTH_CONSTRAINT),         
                    AuthConstraintNode.class, "setAuthorizationConstraint");
        registerElementHandler(new XMLElement(WebTagNames.WEB_RESOURCE_COLLECTION),         
                    WebResourceCollectionNode.class, "addWebResourceCollection");        
    }

    protected SecurityConstraintImpl descriptor = null;

    /**
     * @return the descriptor instance to associate with this XMLNode
     */
    @Override
    public SecurityConstraintImpl getDescriptor() {
        if (descriptor==null) {
            descriptor = new SecurityConstraintImpl();
        }
        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
     */
    @Override
    protected Map getDispatchTable() {    
        Map table = super.getDispatchTable();
        table.put(WebTagNames.NAME, "setName");
	return table;
    }
    
    /**
     * write the descriptor class to a DOM tree and return it
     *
     * @param parent node in the DOM tree 
     * @param nodeName node name for the root element of this xml fragment
     * @param descriptor the descriptor to write
     * @return the DOM tree top node
     */
    @Override
    public Node writeDescriptor(Node parent, String nodeName, SecurityConstraintImpl descriptor) {
        Node myNode = appendChild(parent, nodeName);
        appendTextChild(myNode, WebTagNames.NAME, descriptor.getName());
        
        // web-resource-collection+
        WebResourceCollectionNode wrcNode = new WebResourceCollectionNode();
        for (WebResourceCollection webResource: descriptor.getWebResourceCollections()) {
                wrcNode.writeDescriptor(myNode, WebTagNames.WEB_RESOURCE_COLLECTION,
                    (WebResourceCollectionImpl) webResource);
        }
        
        // auth-constaint?
        AuthorizationConstraintImpl aci = (AuthorizationConstraintImpl) descriptor.getAuthorizationConstraint();
        if (aci!=null) {
            AuthConstraintNode acNode = new AuthConstraintNode();
            acNode.writeDescriptor(myNode, WebTagNames.AUTH_CONSTRAINT, aci);
        }
        
        // user-data-constraint?
        UserDataConstraintImpl udci = (UserDataConstraintImpl) descriptor.getUserDataConstraint();
        if (udci!=null) {
            UserDataConstraintNode udcn = new UserDataConstraintNode();
            udcn.writeDescriptor(myNode, WebTagNames.USERDATA_CONSTRAINT, udci);
        }
        return myNode;        
    }
    
}