1 // ================================================================================================= 2 // ADOBE SYSTEMS INCORPORATED 3 // Copyright 2006 Adobe Systems Incorporated 4 // All Rights Reserved 5 // 6 // NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms 7 // of the Adobe license agreement accompanying it. 8 // ================================================================================================= 9 10 package com.adobe.xmp.impl; 11 12 import java.io.IOException; 13 import java.io.OutputStream; 14 15 16 /** 17 * An <code>OutputStream</code> that counts the written bytes. 18 * 19 * @since 08.11.2006 20 */ 21 public final class CountOutputStream extends OutputStream 22 { 23 /** the decorated output stream */ 24 private final OutputStream out; 25 /** the byte counter */ 26 private int bytesWritten = 0; 27 28 29 /** 30 * Constructor with providing the output stream to decorate. 31 * @param out an <code>OutputStream</code> 32 */ CountOutputStream(OutputStream out)33 CountOutputStream(OutputStream out) 34 { 35 this.out = out; 36 } 37 38 39 /** 40 * Counts the written bytes. 41 * @see java.io.OutputStream#write(byte[], int, int) 42 */ write(byte[] buf, int off, int len)43 public void write(byte[] buf, int off, int len) throws IOException 44 { 45 out.write(buf, off, len); 46 bytesWritten += len; 47 } 48 49 50 /** 51 * Counts the written bytes. 52 * @see java.io.OutputStream#write(byte[]) 53 */ write(byte[] buf)54 public void write(byte[] buf) throws IOException 55 { 56 out.write(buf); 57 bytesWritten += buf.length; 58 } 59 60 61 /** 62 * Counts the written bytes. 63 * @see java.io.OutputStream#write(int) 64 */ write(int b)65 public void write(int b) throws IOException 66 { 67 out.write(b); 68 bytesWritten++; 69 } 70 71 72 /** 73 * @return the bytesWritten 74 */ getBytesWritten()75 public int getBytesWritten() 76 { 77 return bytesWritten; 78 } 79 }