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.base;
28:
29: import java.io.ObjectOutput;
30: import java.io.ObjectOutputStream;
31: import java.io.OutputStream;
32: import org.cougaar.mts.std.AttributedMessage;
33:
34: /**
35: * Default implementatiom of {@link MessageWriter} that uses a trivial
36: * {@link ObjectOutputStream} extension to delegate calls to the
37: * original {@link ObjectOutput}.
38: */
39: public class MessageWriterImpl implements MessageWriter {
40:
41: static class SimpleObjectOutputStream extends ObjectOutputStream {
42: private ObjectOutput out;
43:
44: SimpleObjectOutputStream(ObjectOutput out)
45: throws java.io.IOException {
46: this .out = out;
47: }
48:
49: public void close() throws java.io.IOException {
50: out.close();
51: }
52:
53: public void flush() throws java.io.IOException {
54: out.flush();
55: }
56:
57: public void write(int b) throws java.io.IOException {
58: out.write(b);
59: }
60:
61: public void write(byte[] b) throws java.io.IOException {
62: out.write(b);
63: }
64:
65: public void write(byte[] b, int off, int len)
66: throws java.io.IOException {
67: out.write(b, off, len);
68: }
69:
70: }
71:
72: public void finalizeAttributes(AttributedMessage msg) {
73: }
74:
75: public void preProcess() {
76: }
77:
78: public OutputStream getObjectOutputStream(ObjectOutput out)
79: throws java.io.IOException {
80: if (out instanceof ObjectOutputStream) {
81: return (OutputStream) out;
82: } else {
83: return new SimpleObjectOutputStream(out);
84: }
85: }
86:
87: public void finishOutput() {
88: }
89:
90: public void postProcess() {
91: }
92:
93: }
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