/**************************************************************************
* Copyright (c) 2001 by Punch Telematix. All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions *
* are met: *
* 1. Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* 3. Neither the name of Punch Telematix nor the names of *
* other contributors may be used to endorse or promote products *
* derived from this software without specific prior written permission.*
* *
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED *
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. *
* IN NO EVENT SHALL PUNCH TELEMATIX OR OTHER CONTRIBUTORS BE LIABLE *
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF *
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, *
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE *
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN *
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
**************************************************************************/
/*
** $Id: ByteArrayInputStream.java,v 1.1.1.1 2004/07/12 14:07:45 cvs Exp $
*/
package java.io;
public class ByteArrayInputStream extends InputStream {
protected byte[] buf;
protected int pos;
protected int count;
protected int mark ;
public ByteArrayInputStream(byte[] b) {
this(b, 0, b.length);
}
public ByteArrayInputStream(byte[] b, int off, int len) {
if (off < 0 || len < 0 || off > b.length){
throw new ArrayIndexOutOfBoundsException();
}
buf = b;
count = (off+len > b.length) ? b.length - off : off+len;
pos = off;
mark = off;
}
public synchronized int read(){
if(pos >= count){
return -1;
}else {
return (0xff & ((char) buf[pos++]));
}
}
public void close() throws IOException {}
public synchronized int read(byte[] b, int off, int len){
if(pos >= count){
return -1;
}
int k = count-pos;
k = (len > k ? k : len);
System.arraycopy(buf, pos, b, off, k);
pos += k;
return k;
}
public synchronized long skip(long n){
if (n <= 0){
return 0;
}
int k = count-pos;
k = (n > k) ? k :(int) n;
pos += k;
return k;
}
public synchronized int available(){
return count-pos;
}
public synchronized void mark(int readAheadLimit){
mark = pos;
}
public synchronized void reset(){
pos = mark;
}
public boolean markSupported() {
return true;
}
}