| /* |
| * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| 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 javax.xml.ws.BindingProvider; |
| |
| /** |
| * 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, ClientPipeAssemblerContext context) { |
| this(classLoader, new ClientTubeAssemblerContext(context.getAddress(), context.getWsdlModel(), |
| context.getService(), context.getBinding(), context.getContainer())); |
| } |
| |
| public DeferredTransportPipe(ClassLoader classLoader, ClientTubeAssemblerContext context) { |
| this.classLoader = classLoader; |
| this.context = context; |
| } |
| |
| 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.getService(), |
| context.getBinding(), |
| context.getContainer(), |
| context.getCodec().copy() |
| ); |
| |
| 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) { |
| return transport.processResponse(response); |
| } |
| |
| public void preDestroy() { |
| if(transport!=null) { |
| transport.preDestroy(); |
| transport = null; |
| address = null; |
| } |
| } |
| |
| public DeferredTransportPipe copy(TubeCloner cloner) { |
| DeferredTransportPipe copy = new DeferredTransportPipe(classLoader,context); |
| cloner.add(this,copy); |
| |
| // TODO Is the following thread-safe ?? |
| // copied pipeline is still likely to work with the same endpoint address, |
| // so also copy the cached transport pipe, if any |
| if(transport!=null) { |
| copy.transport = ((PipeCloner)cloner).copy(this.transport); |
| copy.address = this.address; |
| } |
| |
| return copy; |
| } |
| } |