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/*
 * JAXWSServletModule.java
 *
 * Created on June 19, 2007, 5:51 PM
 * @author Mike Grogan
 */

package org.glassfish.webservices;

import com.sun.xml.ws.transport.http.servlet.ServletModule;
import com.sun.xml.ws.transport.http.servlet.ServletAdapter;
import com.sun.istack.NotNull;
import com.sun.xml.ws.api.server.BoundEndpoint;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * Implementation of JAX-WS ServletModule SPI used by WSIT WS-MetadataExchange.
 * In the current 109 design, each endpoint has a unique JAXWSContainer.  On
 * the other hand, the requirements imposed by WSIT WS-MetadataExchange
 * require that all endpoints sharing a context root share a ServletMoule.
 * Therefore, in general, multiple JAXWSContainers will share a JAXWSServletModule,
 * so JAXWSContainer must use a lookup in the static 
 * JAXWSServletModule.modules to find its associatiated module. 
 */

public class JAXWSServletModule extends ServletModule {
    
    //Map of context-roots to JAXWSServletModules
    private final static Map modules =
            new ConcurrentHashMap();

    //Map of uri->BoundEndpoint used to implement getBoundEndpoint.  Map is rather
    //than Set, so that when a new endpoint is redeployed at a given uri, the old
    //endpoint will be replaced by the new endpoint.  The values() method of the
    //field is returned by getBoundEndpoints.
     private final Map endpoints =
             new ConcurrentHashMap();
     
    //the context-root for endpoints belonging to this module.
    private final String contextPath;
    
         
    public static synchronized JAXWSServletModule getServletModule(String contextPath) {

        JAXWSServletModule ret = modules.get(contextPath);
        if (ret == null) {
            ret = new JAXWSServletModule(contextPath);
            modules.put(contextPath, ret);
        }
        return ret;
    } 

    public static void destroy(String contextPath) {
        modules.remove(contextPath);
    }

    private JAXWSServletModule(String contextPath) {
            this.contextPath = contextPath;
    }
  
    public void addEndpoint(String uri, ServletAdapter adapter) {
        endpoints.put(uri, adapter);
    }

    @Override
    public @NotNull List getBoundEndpoints() {
            return new ArrayList(endpoints.values());
    }

    @Override
    public @NotNull String getContextPath() {
        return contextPath;
    }
}