001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036:
037: package com.sun.xml.ws.client;
038:
039: import com.sun.istack.Nullable;
040: import com.sun.xml.ws.util.CompletedFuture;
041:
042: import javax.xml.ws.AsyncHandler;
043: import javax.xml.ws.Response;
044: import javax.xml.ws.WebServiceException;
045: import java.util.Map;
046: import java.util.concurrent.FutureTask;
047:
048: /**
049: * {@link Response} implementation. When Runnbale is executed, it just hands the
050: * request to Fiber and returns. When the Fiber finishes the execution, it sets
051: * response in the {@link FutureTask}
052: *
053: * <p>
054: * {@link ResponseImpl} executes things synchronously and waits for the return
055: * parameter.
056: *
057: * @author Jitendra Kotamraju
058: */
059: public final class AsyncResponseImpl<T> extends FutureTask<T> implements
060: Response<T>, ResponseContextReceiver {
061:
062: /**
063: * Optional {@link AsyncHandler} that gets invoked
064: * at the completion of the task.
065: */
066: private final AsyncHandler<T> handler;
067: private ResponseContext responseContext;
068: private final Runnable callable;
069:
070: /**
071: *
072: * @param runnable
073: * This {@link Runnable} is executed asynchronously.
074: * @param handler
075: * Optional {@link AsyncHandler} to invoke at the end
076: * of the processing. Can be null.
077: */
078: public AsyncResponseImpl(Runnable runnable, @Nullable
079: AsyncHandler<T> handler) {
080: super (runnable, null);
081: this .callable = runnable;
082: this .handler = handler;
083: }
084:
085: @Override
086: public void run() {
087: // override so that AsyncInvoker calls set()
088: // when Fiber calls the callback
089: try {
090: callable.run();
091: } catch (WebServiceException e) {
092: //it could be a WebServiceException or a ProtocolException or any RuntimeException
093: // resulting due to some internal bug.
094: set(null, e);
095: } catch (Throwable e) {
096: //its some other exception resulting from user error, wrap it in
097: // WebServiceException
098: set(null, new WebServiceException(e));
099: }
100: }
101:
102: public ResponseContext getContext() {
103: return responseContext;
104: }
105:
106: public void setResponseContext(ResponseContext rc) {
107: responseContext = rc;
108: }
109:
110: public void set(final T v, final Throwable t) {
111: // call the handler before we mark the future as 'done'
112: if (handler != null) {
113: try {
114: /**
115: * {@link Response} object passed into the callback.
116: * We need a separate {@link java.util.concurrent.Future} because we don't want {@link ResponseImpl}
117: * to be marked as 'done' before the callback finishes execution.
118: * (That would provide implicit synchronization between the application code
119: * in the main thread and the callback code, and is compatible with the JAX-RI 2.0 FCS.
120: */
121: class CallbackFuture<T> extends CompletedFuture<T>
122: implements Response<T> {
123: public CallbackFuture(T v, Throwable t) {
124: super (v, t);
125: }
126:
127: public Map<String, Object> getContext() {
128: return AsyncResponseImpl.this .getContext();
129: }
130: }
131: handler.handleResponse(new CallbackFuture<T>(v, t));
132: } catch (Throwable e) {
133: super.setException(e);
134: return;
135: }
136: }
137: if (t != null) {
138: super.setException(t);
139: } else {
140: super.set(v);
141: }
142: }
143: }
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