01: /*
02: * <copyright>
03: *
04: * Copyright 1997-2004 BBNT Solutions, LLC
05: * under sponsorship of the Defense Advanced Research Projects
06: * Agency (DARPA).
07: *
08: * You can redistribute this software and/or modify it under the
09: * terms of the Cougaar Open Source License as published on the
10: * Cougaar Open Source Website (www.cougaar.org).
11: *
12: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
14: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
15: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
16: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
17: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
18: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: *
24: * </copyright>
25: */
26:
27: package org.cougaar.mts.std;
28:
29: import org.cougaar.core.mts.AttributeConstants;
30:
31: import org.cougaar.mts.base.SendLink;
32: import org.cougaar.mts.base.SendLinkDelegateImplBase;
33: import org.cougaar.mts.base.StandardAspect;
34:
35: /**
36: * Aspect that tags all messages with a "send time" attribute when
37: * they enter the MTS SendLink.
38: */
39: public class MessageSendTimeAspect extends StandardAspect implements
40: AttributeConstants {
41: public MessageSendTimeAspect() {
42: }
43:
44: public Object getDelegate(Object object, Class type) {
45: if (type == SendLink.class) {
46: return new SendLinkDelegate((SendLink) object);
47: } else {
48: return null;
49: }
50: }
51:
52: private class SendLinkDelegate extends SendLinkDelegateImplBase {
53: SendLinkDelegate(SendLink link) {
54: super (link);
55: }
56:
57: public void sendMessage(AttributedMessage message) {
58: long now = System.currentTimeMillis();
59: message.setAttribute(MESSAGE_SEND_TIME_ATTRIBUTE, new Long(
60: now));
61: super.sendMessage(message);
62: }
63: }
64: }
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