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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. 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.html
 * or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.deployment.util;

import com.sun.enterprise.deployment.*;

import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;

import org.jvnet.hk2.annotations.Service;

/**
 * This class is responsible for validating the loaded DOL classes and 
 * transform some of the raw XML information into refined values used 
 * by the DOL runtime
 *
 * @author Jerome Dochez
 */
@Service(name="application_deploy")
public class ApplicationValidator extends EjbBundleValidator 
    implements ApplicationVisitor, EjbBundleVisitor, EjbVisitor {
    

    private Application application;
    
    /**
     * visit an application object
     * @param application the application descriptor
     */
    public void accept(Application application) {
        this.application = application;
    }
            
    /**
     * visits an ejb bundle descriptor
     * @param bundleDescriptor an ejb bundle descriptor
     */
    public void accept(EjbBundleDescriptor bundleDescriptor) {
        
        this.bundleDescriptor = bundleDescriptor;
        super.accept(bundleDescriptor);
        /** set the realm name on each ejb to match the ones on this application
         * this is required right now to pass the stringent CSIv2 criteria 
         * whereby the realm-name for the ejb being authenticated on 
         * has to match the one on the application. We look at the IORConfigurator
         * descriptor
         * @todo: change the csiv2 layer so that it does not look at 
         * IORConfiguratorDescriptor. 
         * @see iiop/security/SecurityMechanismSelector.evaluateClientConformance.
         */
        String rlm = application.getRealm();
        Iterator ejbs = bundleDescriptor.getEjbs().iterator();
        for(; ejbs.hasNext();){
            EjbDescriptor ejb = (EjbDescriptor) ejbs.next();
            Iterator iorconfig = ejb.getIORConfigurationDescriptors().iterator();
            for (;iorconfig.hasNext(); ){
                EjbIORConfigurationDescriptor desc = 
                    (EjbIORConfigurationDescriptor)iorconfig.next();
                desc.setRealmName(rlm);
            }
        }
    }
    
    
    /**
     * visit a web bundle descriptor
     *
     * @param descriptor the web bundle descriptor
     */
    public void accept(WebBundleDescriptor descriptor) {
    }   
    
    /**
     * visits a appclient descriptor
     * @param appclientdescriptor the application client descriptor
     */
    public void accept(ApplicationClientDescriptor appclientdescriptor) {
        bundleDescriptor = appclientdescriptor;        

        // set the default lifecycle callback class
        for (LifecycleCallbackDescriptor next :
            appclientdescriptor.getPreDestroyDescriptors()) {
            next.setDefaultLifecycleCallbackClass(
                appclientdescriptor.getMainClassName());
        }

        for (LifecycleCallbackDescriptor next :
            appclientdescriptor.getPostConstructDescriptors()) {
            next.setDefaultLifecycleCallbackClass(
                appclientdescriptor.getMainClassName());
        }
    }    

    /**
     * visit a web component descriptor
     *
     * @param descriptor the web component
     */
    public void accept(WebComponentDescriptor descriptor) {
        //set default value
        if (descriptor.getLoadOnStartUp() == null) {
            descriptor.setLoadOnStartUp(-1);
        }
        if (descriptor.isAsyncSupported() == null) {
            descriptor.setAsyncSupported(false);
        }
        if (descriptor.getAsyncTimeout() == null) {
            descriptor.setAsyncTimeout(60000L);
        }        

        computeRuntimeDefault(descriptor);
    }
       
    private void computeRuntimeDefault(WebComponentDescriptor webComp) {
        if (!webComp.getUsesCallerIdentity()) {
            computeRunAsPrincipalDefault(
                webComp.getRunAsIdentity(), webComp.getApplication());
        }
    }

    public void accept(ServletFilterDescriptor descriptor) {
        // set default value
        if (descriptor.isAsyncSupported() == null) {
            descriptor.setAsyncSupported(false);
        }
        if (descriptor.getAsyncTimeout() == null) {
            descriptor.setAsyncTimeout(60000L);
        }        
    }
    
    /**
     * @return a vector of EjbDescriptor for this bundle
     */
    protected Collection getEjbDescriptors() {
        if (application!=null) 
            return application.getEjbDescriptors();
        return new HashSet();
    }     
    
    /**
     * @return the Application object if any
     */
    protected Application getApplication() {
        return application;
    }
    
    /**
     * @return the bundleDescriptor we are validating
     */
    protected BundleDescriptor getBundleDescriptor() {
        return bundleDescriptor;
    }    
    
    
}