J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * reserved comment block |
| 3 | * DO NOT REMOVE OR ALTER! |
| 4 | */ |
| 5 | /* |
| 6 | * Copyright 1999-2005 The Apache Software Foundation. |
| 7 | * |
| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | * you may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
| 11 | * |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 13 | * |
| 14 | * Unless required by applicable law or agreed to in writing, software |
| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | * See the License for the specific language governing permissions and |
| 18 | * limitations under the License. |
| 19 | * |
| 20 | */ |
| 21 | package com.sun.org.apache.xml.internal.security.utils; |
| 22 | |
| 23 | import java.io.ByteArrayOutputStream; |
| 24 | |
| 25 | /** |
| 26 | * A simple Unsynced ByteArryOutputStream |
| 27 | * @author raul |
| 28 | * |
| 29 | */ |
| 30 | public class UnsyncByteArrayOutputStream extends ByteArrayOutputStream { |
| 31 | int size=4*1024; |
| 32 | byte []buf=new byte[size]; |
| 33 | int pos; |
| 34 | /** @inheritDoc */ |
| 35 | public void write(byte[] arg0) { |
| 36 | int newPos=pos+arg0.length; |
| 37 | if (newPos>size) { |
| 38 | expandSize(); |
| 39 | } |
| 40 | System.arraycopy(arg0,0,buf,pos,arg0.length); |
| 41 | pos=newPos; |
| 42 | } |
| 43 | /** @inheritDoc */ |
| 44 | public void write(byte[] arg0, int arg1, int arg2) { |
| 45 | int newPos=pos+arg2; |
| 46 | if (newPos>size) { |
| 47 | expandSize(); |
| 48 | } |
| 49 | System.arraycopy(arg0,arg1,buf,pos,arg2); |
| 50 | pos=newPos; |
| 51 | } |
| 52 | /** @inheritDoc */ |
| 53 | public void write(int arg0) { |
| 54 | if (pos>=size) { |
| 55 | expandSize(); |
| 56 | } |
| 57 | buf[pos++]=(byte)arg0; |
| 58 | } |
| 59 | /** @inheritDoc */ |
| 60 | public byte[] toByteArray() { |
| 61 | byte result[]=new byte[pos]; |
| 62 | System.arraycopy(buf,0,result,0,pos); |
| 63 | return result; |
| 64 | } |
| 65 | |
| 66 | /** @inheritDoc */ |
| 67 | public void reset() { |
| 68 | pos=0; |
| 69 | } |
| 70 | |
| 71 | /** @inheritDoc */ |
| 72 | void expandSize() { |
| 73 | int newSize=size<<2; |
| 74 | byte newBuf[]=new byte[newSize]; |
| 75 | System.arraycopy(buf,0,newBuf,0,pos); |
| 76 | buf=newBuf; |
| 77 | size=newSize; |
| 78 | |
| 79 | } |
| 80 | } |