package com.alibaba.common.lang;
import com.alibaba.common.lang.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* 代表一个byte数组。
*
* @author Michael Zhou
* @version $Id: ByteArray.java 593 2004-02-26 13:47:19Z baobao $
*/
public class ByteArray {
private byte[] bytes;
private int offset;
private int length;
public ByteArray(byte[] bytes, int offset, int length) {
this.bytes = bytes;
this.offset = offset;
this.length = length;
}
public byte[] getBytes() {
return bytes;
}
public int getOffset() {
return offset;
}
public int getLength() {
return length;
}
public byte[] toByteArray() {
byte[] copy = new byte[length];
System.arraycopy(bytes, offset, copy, 0, length);
return copy;
}
public InputStream toInputStream() {
return new ByteArrayInputStream(bytes, offset, length);
}
public void writeTo(OutputStream out) throws IOException {
out.write(bytes, offset, length);
}
}