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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2013 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
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [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.
 */
// Portions Copyright [2018-2021] [Payara Foundation and/or its affiliates]
package org.glassfish.webservices;

import java.net.URL;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.glassfish.api.container.EndpointRegistrationException;
import org.glassfish.api.container.RequestDispatcher;
import org.glassfish.api.deployment.ApplicationContainer;
import org.glassfish.api.deployment.ApplicationContext;
import org.glassfish.api.deployment.DeployCommandParameters;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.grizzly.servlet.ServletHandler;
import org.glassfish.web.deployment.util.WebServerInfo;

import com.sun.enterprise.deployment.Application;
import com.sun.enterprise.deployment.BundleDescriptor;
import com.sun.enterprise.deployment.WebService;
import com.sun.enterprise.deployment.WebServiceEndpoint;
import com.sun.enterprise.deployment.WebServicesDescriptor;
import java.net.MalformedURLException;
import org.glassfish.internal.api.Globals;
import org.glassfish.webservices.deployment.WebServiceGrizzlyListenerAdapter;
import org.glassfish.webservices.deployment.WebServiceGrizzlyRestartListener;

/**
 * This class implements the ApplicationContainer and will be used
 * to register endpoints to the grizzly ServletAdapter
 *
 * 

 * Thus when a request is received it is directed to our {@link EjbWebServiceServlet}
 * so that it can process the request
 *
 * @author Bhakti Mehta
 */

public class WebServicesApplication implements ApplicationContainer, WebServiceGrizzlyRestartListener {

    private static final Logger logger = LogUtils.getLogger();

    private ArrayList ejbendpoints;
    private final ServletHandler httpHandler;
    private final RequestDispatcher dispatcher;
    private final DeploymentContext deploymentCtx;

    private ClassLoader cl;
    private Application app;
    private final Set publishedFiles;
    private String virtualServers;
    private final WebServiceGrizzlyListenerAdapter grizzlyRestartListener;

    public WebServicesApplication(DeploymentContext context,  RequestDispatcher dispatcherString, Set publishedFiles){
        this.deploymentCtx = context;
        this.dispatcher = dispatcherString;
        this.ejbendpoints = getEjbEndpoints();
        this.httpHandler = new EjbWSAdapter();
        this.publishedFiles = publishedFiles;
        this.grizzlyRestartListener = Globals.getDefaultHabitat()
                .getService(WebServiceGrizzlyListenerAdapter.class);
    }

    @Override
    public Object getDescriptor() {
        return null;
    }

    @Override
    public boolean start(ApplicationContext startupContext) throws Exception {
        cl = startupContext.getClassLoader();
        app = deploymentCtx.getModuleMetaData(Application.class);
        DeployCommandParameters commandParams = ((DeploymentContext) startupContext).getCommandParameters(DeployCommandParameters.class);
        virtualServers = commandParams.virtualservers;
        createEndpoints();
        grizzlyRestartListener.addListener(this);
        return true;
    }

    private void createEndpoints() {
        try {
            if (app == null || cl == null) {
                return;
            }
            Iterator iter = ejbendpoints.iterator();
            EjbEndpoint ejbendpoint;
            while (iter.hasNext()) {
                ejbendpoint = iter.next();
                String contextRoot = ejbendpoint.contextRoot;
                WebServerInfo wsi = new WsUtil().getWebServerInfoForDAS();
                URL rootURL = wsi.getWebServerRootURL(ejbendpoint.isSecure);
                dispatcher.registerEndpoint(contextRoot, httpHandler, this, virtualServers);
                //Fix for issue 13107490 and 17648
                if (wsi.getHttpVS() != null && wsi.getHttpVS().getPort() != 0) {
                    logger.log(Level.INFO, LogUtils.EJB_ENDPOINT_REGISTRATION,
                            new Object[]{app.getAppName(), rootURL + contextRoot});
                }
            }

        } catch (EndpointRegistrationException | MalformedURLException e) {
            logger.log(Level.SEVERE, LogUtils.ENDPOINT_REGISTRATION_ERROR, e.toString());
        }
    }

    private boolean destroyEndpoints() {
        try {
            Iterator iter = ejbendpoints.iterator();
            String contextRoot;
            EjbEndpoint endpoint;
            while(iter.hasNext()) {
                endpoint = iter.next();
                contextRoot = endpoint.contextRoot;
                dispatcher.unregisterEndpoint(contextRoot);
            }
        } catch (EndpointRegistrationException e) {
            logger.log(Level.SEVERE, LogUtils.ENDPOINT_UNREGISTRATION_ERROR, e.toString());
            return false;
        }
        return true;
    }

    private ArrayList getEjbEndpoints() {
        ejbendpoints = new ArrayList<>();

        Application app = deploymentCtx.getModuleMetaData(Application.class);

        Set bundles = app.getBundleDescriptors();
        for(BundleDescriptor bundle : bundles) {
            collectEjbEndpoints(bundle);
        }

        return ejbendpoints;
    }

    private void collectEjbEndpoints(BundleDescriptor bundleDesc) {
        WebServicesDescriptor wsDesc = bundleDesc.getWebServices();
        for (WebService ws : wsDesc.getWebServices()) {
            for (WebServiceEndpoint endpoint : ws.getEndpoints()) {
                //Only add for ejb based endpoints
                if (endpoint.implementedByEjbComponent()) {
                    ejbendpoints.add(new EjbEndpoint(endpoint.getEndpointAddressUri(), endpoint.isSecure()));
                }
            }
        }
    }

    @Override
    public boolean stop(ApplicationContext stopContext) {
        grizzlyRestartListener.removeListener(this);
        return destroyEndpoints();
    }

    @Override
    public boolean suspend() {
        return false;
    }

    @Override
    public boolean resume() throws Exception {
        return false;
    }

    @Override
    public ClassLoader getClassLoader() {
        return cl;
    }

    Application getApplication() {
        return app;
    }

    @Override
    public void restartEndpoints() {
        destroyEndpoints();
        createEndpoints();
    }

    static class EjbEndpoint {
        private final String contextRoot;

        private boolean isSecure;

        EjbEndpoint(String contextRoot,boolean secure){
            this.contextRoot = contextRoot;
            this.isSecure = secure;
        }
    }

    Set getPublishedFiles() {
        return publishedFiles;
    }
}
 















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