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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011-2012 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.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
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 */

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

import com.sun.enterprise.deployment.WebBundleDescriptor;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.runtime.RuntimeDescriptorNode;
import com.sun.enterprise.deployment.runtime.common.wls.SecurityRoleAssignment;
import com.sun.enterprise.deployment.xml.RuntimeTagNames;

import org.glassfish.deployment.common.Descriptor;
import org.w3c.dom.Node;

import java.util.List;

/**
 * This node handles all the role mapping information for weblogic-application.xml
 *
 * @author  Sudarsan Sridhar
 * @version 
 */
public class SecurityRoleAssignmentNode extends RuntimeDescriptorNode {

    public SecurityRoleAssignmentNode() {
    }

    @Override
    protected SecurityRoleAssignment createDescriptor() {
        return new SecurityRoleAssignment();
    }

    
    /**
     * receives notification 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) {
        SecurityRoleAssignment sra = (SecurityRoleAssignment) getDescriptor();
        if (RuntimeTagNames.ROLE_NAME.equals(element.getQName())) {
            sra.setRoleName(value);
        } else if (RuntimeTagNames.PRINCIPAL_NAME.equals(element.getQName())) {
            sra.addPrincipalName(value);
        } else if (RuntimeTagNames.EXTERNALLY_DEFINED.equals(element.getQName())) {
            sra.setExternallyDefined();
        } else {
            super.setElementValue(element, value);
        }
    }

    /**
     * write the descriptor class to a DOM tree and return it
     *
     * @param parent node for the DOM tree
     * @param node name 
     * @param the descriptor to write
     * @return the DOM tree top node
     */
    public Node writeDescriptor(Node parent, String nodeName, SecurityRoleAssignment descriptor) {
        Node roleMapping = appendChild(parent, nodeName);

        //role-name
        appendTextChild(roleMapping, RuntimeTagNames.ROLE_NAME, descriptor.getRoleName());

        //externally-defined
        if (descriptor.isExternallyDefined()){
            appendChild(roleMapping, RuntimeTagNames.EXTERNALLY_DEFINED);
        }

        //principal-name+
        List principals = descriptor.getPrincipalNames();
        for (int i = 0; i < principals.size(); i++) {
            appendTextChild(roleMapping, RuntimeTagNames.PRINCIPAL_NAME, principals.get(i));
        }
        return roleMapping;
    }

    /**
     * write all occurrences of the descriptor corresponding to the current
     * node from the parent descriptor to an JAXP DOM node and return it
     *
     * This API will be invoked by the parent node when the parent node
     * writes out a mix of statically and dynamically registered sub nodes.
     *
     * This method should be overriden by the sub classes if it
     * needs to be called by the parent node.
     *
     * @param parent node in the DOM tree
     * @param nodeName the name of the node
     * @param parentDesc parent descriptor of the descriptor to be written
     * @return the JAXP DOM node
     */
    @Override
    public Node writeDescriptors(Node parent, String nodeName, Descriptor parentDesc) {
        if (parentDesc instanceof WebBundleDescriptor) {
            WebBundleDescriptor webBundleDescriptor = (WebBundleDescriptor)parentDesc;
            // security-role-assignment*
            SecurityRoleAssignment[]securityRoleAssignments =
                webBundleDescriptor.getSunDescriptor().getSecurityRoleAssignments();
            for (SecurityRoleAssignment securityRoleAssignment : 
                    securityRoleAssignments) {
                writeDescriptor(parent, nodeName, securityRoleAssignment);
            }
        }
        return parent;
    }

}