1 /* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 package org.jf.util; 33 34 import javax.annotation.Nonnull; 35 import java.io.IOException; 36 import java.io.OutputStream; 37 import java.io.RandomAccessFile; 38 39 public class RandomAccessFileOutputStream extends OutputStream { 40 private int filePosition; 41 @Nonnull private final RandomAccessFile raf; 42 RandomAccessFileOutputStream(@onnull RandomAccessFile raf, int startFilePosition)43 public RandomAccessFileOutputStream(@Nonnull RandomAccessFile raf, int startFilePosition) { 44 this.filePosition = startFilePosition; 45 this.raf = raf; 46 } 47 write(int b)48 @Override public void write(int b) throws IOException { 49 raf.seek(filePosition); 50 filePosition++; 51 raf.write(b); 52 } 53 write(byte[] b)54 @Override public void write(byte[] b) throws IOException { 55 raf.seek(filePosition); 56 filePosition += b.length; 57 raf.write(b); 58 } 59 write(byte[] b, int off, int len)60 @Override public void write(byte[] b, int off, int len) throws IOException { 61 raf.seek(filePosition); 62 filePosition += len; 63 raf.write(b, off, len); 64 } 65 } 66