| 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. |