01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.aspects.asynch;
23:
24: import java.io.Externalizable;
25: import java.io.IOException;
26: import java.io.ObjectInput;
27: import java.io.ObjectOutput;
28:
29: /**
30: * Comment
31: *
32: * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
33: * @version $Revision: 57186 $
34: */
35: public class AsynchMixin implements FutureHolder, AsynchProvider,
36: Externalizable {
37: private static final long serialVersionUID = 3408652015381364191L;
38:
39: private transient ThreadLocal currentFuture = new ThreadLocal();
40:
41: public AsynchMixin() {
42: }
43:
44: public void setFuture(Future future) {
45: Future oldFuture = (Future) currentFuture.get();
46: try {
47: if (oldFuture != null)
48: oldFuture.release();
49: } catch (Exception e) {
50: // ignore
51: }
52: currentFuture.set(future);
53: }
54:
55: public Future getFuture() {
56: Future future = (Future) currentFuture.get();
57: currentFuture.set(null);
58: return future;
59: }
60:
61: public void writeExternal(ObjectOutput out) throws IOException {
62:
63: }
64:
65: public void readExternal(ObjectInput in) throws IOException,
66: ClassNotFoundException {
67: currentFuture = new ThreadLocal();
68: }
69: }
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