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;

 import com.sun.xml.internal.ws.api.EndpointAddress;

 import com.sun.xml.internal.ws.api.message.Packet;

 import com.sun.xml.internal.ws.api.pipe.*;

 import com.sun.xml.internal.ws.api.pipe.helper.AbstractTubeImpl;

 import com.sun.istack.internal.NotNull;

 import com.sun.xml.internal.ws.developer.HttpConfigFeature;

 import javax.xml.ws.BindingProvider;

 import javax.xml.ws.WebServiceFeature;

 /**

  * Proxy transport {@link Tube} and {@link Pipe} that lazily determines the

  * actual transport pipe by looking at {@link Packet#endpointAddress}.

  *

  * <p>

  * This pseudo transport is used when there's no statically known endpoint address,

  * and thus it's expected that the application will configure {@link BindingProvider}

  * at runtime before making invocation.

  *

  * <p>

  * Since a typical application makes multiple invocations with the same endpoint

  * address, this class implements a simple cache strategy to avoid re-creating

  * transport pipes excessively.

  *

  * @author Kohsuke Kawaguchi

  */

 public final class DeferredTransportPipe extends AbstractTubeImpl {

     private Tube transport;

     private EndpointAddress address;

     // parameter to TransportPipeFactory

     private final ClassLoader classLoader;

     private final ClientTubeAssemblerContext context;

     public DeferredTransportPipe(ClassLoader classLoader, ClientTubeAssemblerContext context) {

         this.classLoader = classLoader;

         this.context = context;

         if (context.getBinding().getFeature(HttpConfigFeature.class) == null) {

             context.getBinding().getFeatures().mergeFeatures(

                     new WebServiceFeature[] { new HttpConfigFeature() }, false);

         }

         //See if we can create the transport pipe from the available information.

         try {

             this.transport = TransportTubeFactory.create(classLoader, context);

             this.address = context.getAddress();

         } catch(Exception e) {

             //No problem, transport will be initialized while processing the requests

         }

     }

     public DeferredTransportPipe(DeferredTransportPipe that, TubeCloner cloner) {

         super(that,cloner);

         this.classLoader = that.classLoader;

         this.context = that.context;

         if(that.transport!=null) {

             this.transport = cloner.copy(that.transport);

             this.address = that.address;

        }

     }

     public NextAction processException(@NotNull Throwable t) {

         return transport.processException(t);

     }

     public NextAction processRequest(@NotNull Packet request) {

         if(request.endpointAddress==address)

             // cache hit

             return transport.processRequest(request);

         // cache miss

         if(transport!=null) {

             // delete the current entry

             transport.preDestroy();

             transport = null;

             address = null;

         }

         // otherwise find out what transport will process this.

         ClientTubeAssemblerContext newContext = new ClientTubeAssemblerContext(

             request.endpointAddress,

             context.getWsdlModel(),

             context.getBindingProvider(),

             context.getBinding(),

             context.getContainer(),

             context.getCodec().copy(),

             context.getSEIModel(),

             context.getSEI()

         );

         address = request.endpointAddress;

         transport = TransportTubeFactory.create(classLoader, newContext);

         // successful return from the above method indicates a successful pipe creation

         assert transport!=null;

         return transport.processRequest(request);

     }

     public NextAction processResponse(@NotNull Packet response) {

         if (transport != null)

                 return transport.processResponse(response);

         return doReturnWith(response);

     }

     public void preDestroy() {

         if(transport!=null) {

             transport.preDestroy();

             transport = null;

             address = null;

         }

     }

     public DeferredTransportPipe copy(TubeCloner cloner) {

         return new DeferredTransportPipe(this,cloner);

     }

 }