com.sun.xml.ws.transport.DeferredTransportPipe Maven / Gradle / Ivy
Show all versions of jaxws-rt Show documentation
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2012 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
* http://glassfish.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.
*/
package com.sun.xml.ws.transport;
import com.sun.xml.ws.api.EndpointAddress;
import com.sun.xml.ws.api.message.Packet;
import com.sun.xml.ws.api.pipe.*;
import com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl;
import com.sun.istack.NotNull;
import com.sun.xml.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}.
*
*
* 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.
*
*
* 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);
}
}