Mercurial > jdk8-mips64-public > jaxws / file revision

 /*

  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 package com.sun.xml.internal.ws.transport.http.server;

 import com.sun.net.httpserver.HttpContext;

 import com.sun.net.httpserver.HttpServer;

 import com.sun.xml.internal.ws.server.ServerRtException;

 import java.net.InetSocketAddress;

 import java.net.URL;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.Map;

 import java.util.Set;

 import java.util.concurrent.ExecutorService;

 import java.util.concurrent.Executors;

 import java.util.logging.Logger;

 /**

  * Manages all the WebService HTTP servers created by JAXWS runtime.

  *

  * @author Jitendra Kotamraju

  */

 final class ServerMgr {

     private static final ServerMgr serverMgr = new ServerMgr();

     private static final Logger logger =

         Logger.getLogger(

             com.sun.xml.internal.ws.util.Constants.LoggingDomain + ".server.http");

     private final Map<InetSocketAddress,ServerState> servers = new HashMap<InetSocketAddress,ServerState>();

     private ServerMgr() {}

     /**

      * Gets the singleton instance.

      * @return manager instance

      */

     static ServerMgr getInstance() {

         return serverMgr;

     }

     /*

      * Creates a HttpContext at the given address. If there is already a server

      * it uses that server to create a context. Otherwise, it creates a new

      * HTTP server. This sever is added to servers Map.

      */

     /*package*/ HttpContext createContext(String address) {

         try {

             HttpServer server;

             ServerState state;

             URL url = new URL(address);

             int port = url.getPort();

             if (port == -1) {

                 port = url.getDefaultPort();

             }

             InetSocketAddress inetAddress = new InetSocketAddress(url.getHost(),

                 port);

             synchronized(servers) {

                 state = servers.get(inetAddress);

                 if (state == null) {

                     logger.fine("Creating new HTTP Server at "+inetAddress);

                     // Creates server with default socket backlog

                     server = HttpServer.create(inetAddress, 0);

                     server.setExecutor(Executors.newCachedThreadPool());

                     String path = url.toURI().getPath();

                     logger.fine("Creating HTTP Context at = "+path);

                     HttpContext context = server.createContext(path);

                     server.start();

                     // we have to get actual inetAddress from server, which can differ from the original in some cases.

                     // e.g. A port number of zero will let the system pick up an ephemeral port in a bind operation,

                     // or IP: 0.0.0.0 - which is used to monitor network traffic from any valid IP address

                     inetAddress = server.getAddress();

                     logger.fine("HTTP server started = "+inetAddress);

                     state = new ServerState(server, path);

                     servers.put(inetAddress, state);

                     return context;

                 }

             }

             server = state.getServer();

             if (state.getPaths().contains(url.getPath())) {

               String err = "Context with URL path "+url.getPath()+ " already exists on the server "+server.getAddress();

               logger.fine(err);

               throw new IllegalArgumentException(err);

             }

             logger.fine("Creating HTTP Context at = "+url.getPath());

             HttpContext context = server.createContext(url.getPath());

             state.oneMoreContext(url.getPath());

             return context;

         } catch(Exception e) {

             throw new ServerRtException("server.rt.err",e );

         }

     }

     /*

      * Removes a context. If the server doesn't have anymore contexts, it

      * would stop the server and server is removed from servers Map.

      */

     /*package*/ void removeContext(HttpContext context) {

         InetSocketAddress inetAddress = context.getServer().getAddress();

         synchronized(servers) {

             ServerState state = servers.get(inetAddress);

             int instances = state.noOfContexts();

             if (instances < 2) {

                 ((ExecutorService)state.getServer().getExecutor()).shutdown();

                 state.getServer().stop(0);

                 servers.remove(inetAddress);

             } else {

                 state.getServer().removeContext(context);

                 state.oneLessContext(context.getPath());

             }

         }

     }

     private static final class ServerState {

         private final HttpServer server;

         private int instances;

         private Set<String> paths = new HashSet<String>();

         ServerState(HttpServer server, String path) {

             this.server = server;

             this.instances = 1;

             paths.add(path);

         }

         public HttpServer getServer() {

             return server;

         }

         public void oneMoreContext(String path) {

             ++instances;

             paths.add(path);

         }

         public void oneLessContext(String path) {

             --instances;

             paths.remove(path);

         }

         public int noOfContexts() {

             return instances;

         }

         public Set<String> getPaths() {

           return paths;

         }

     }

 }