Line | Hits | Source |
---|---|---|
1 | /* | |
2 | ||
3 | Copyright 2004, Martian Software, Inc. | |
4 | ||
5 | Licensed under the Apache License, Version 2.0 (the "License"); | |
6 | you may not use this file except in compliance with the License. | |
7 | You may obtain a copy of the License at | |
8 | ||
9 | http://www.apache.org/licenses/LICENSE-2.0 | |
10 | ||
11 | Unless required by applicable law or agreed to in writing, software | |
12 | distributed under the License is distributed on an "AS IS" BASIS, | |
13 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | See the License for the specific language governing permissions and | |
15 | limitations under the License. | |
16 | ||
17 | */ | |
18 | ||
19 | package com.martiansoftware.nailgun; | |
20 | ||
21 | import java.io.IOException; | |
22 | ||
23 | /** | |
24 | * Wraps an OutputStream to send writes in NailGun chunks. Because | |
25 | * multiple NGOutputStreams wrap the same OutputStream (that is, | |
26 | * the OutputStream obtained from the Socket connection with | |
27 | * the client), writes are synchronized on the underlying OutputStream. | |
28 | * If this were not the case, write interleaving could completely | |
29 | * break the NailGun protocol. | |
30 | * | |
31 | * @author <a href="http://www.martiansoftware.com/contact.html">Marty Lamb</a> | |
32 | */ | |
33 | class NGOutputStream extends java.io.FilterOutputStream { | |
34 | ||
35 | private byte[] header; | |
36 | ||
37 | /** | |
38 | * Creates a new NGOutputStream wrapping the specified | |
39 | * OutputStream and using the specified Nailgun chunk code. | |
40 | * @param out the OutputStream to wrap | |
41 | * @param code the NailGun chunk code associated with this | |
42 | * stream (i.e., '1' for stdout, '2' for stderr). | |
43 | */ | |
44 | public NGOutputStream(java.io.OutputStream out, char code) { | |
45 | 0 | super(out); |
46 | 0 | header = new byte[5]; |
47 | 0 | header[4] = (byte) code; |
48 | 0 | } |
49 | ||
50 | /** | |
51 | * @see java.io.OutputStream.write(byte[]) | |
52 | */ | |
53 | public void write(byte[] b) throws IOException { | |
54 | 0 | write(b, 0, b.length); |
55 | 0 | } |
56 | ||
57 | /** | |
58 | * @see java.io.OutputStream.write(int) | |
59 | */ | |
60 | public void write(int b) throws IOException { | |
61 | 0 | byte[] b2 = {(byte) b}; |
62 | 0 | write(b2, 0, 1); |
63 | 0 | } |
64 | ||
65 | /** | |
66 | * @see java.io.OutputStream.write(byte[],int,int) | |
67 | */ | |
68 | public void write(byte[] b, int offset, int len) throws IOException { | |
69 | 0 | LongUtils.toArray(len, header, 0); |
70 | 0 | synchronized(out) { |
71 | 0 | out.write(header, 0, 5); |
72 | 0 | out.write(b, offset, len); |
73 | 0 | } |
74 | 0 | out.flush(); |
75 | 0 | } |
76 | } |
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |