/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.supportunit.util;
import java.io.InputStream;
public class SimpleByteArrayInputStream extends InputStream {
protected byte[] buf = null;
protected int count = 0;
protected int pos = 0;
public SimpleByteArrayInputStream(byte[] buf, int count) {
this.buf = buf;
this.count = count;
}
public final int available() {
return count - pos;
}
public final int read() {
return (pos < count) ? (buf[pos++] & 0xff) : -1;
}
public final int read(byte[] b, int off, int len) {
if (pos >= count) {
return -1;
}
if ((pos + len) > count) {
len = (count - pos);
}
System.arraycopy(buf, pos, b, off, len);
pos += len;
return len;
}
public final long skip(long n) {
if ((pos + n) > count) {
n = count - pos;
}
if (n < 0) {
return 0;
}
pos += n;
return n;
}
}