Mega Code Archive
Byte Array
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/**
* This file is distributed under the GPL
* $Id: ByteArray.java 1619 2008-09-16 16:15:45Z scotta $
*/
//package net.bnubot.util;
import java.io.UnsupportedEncodingException;
/**
* @author scotta
*/
public final class ByteArray {
private final byte[] data;
public ByteArray(byte b) {
this.data = new byte[] {b};
}
public ByteArray(byte[] data) {
this.data = data.clone();
}
public ByteArray(String text) {
byte[] data;
try {
data = text.getBytes("UTF-8");
} catch(UnsupportedEncodingException e) {
data = text.getBytes();
}
this.data = data;
}
public ByteArray(byte[] data, int beginIndex, int endIndex) {
this.data = new byte[endIndex - beginIndex];
System.arraycopy(data, beginIndex, this.data, 0, this.data.length);
}
public final byte[] getBytes() {
return data;
}
public ByteArray concat(byte[] str) {
byte[] out = new byte[data.length + str.length];
System.arraycopy(data, 0, out, 0, data.length);
System.arraycopy(str, 0, out, data.length, str.length);
return new ByteArray(out);
}
public ByteArray concat(ByteArray str) {
return concat(str.data);
}
public ByteArray removeFirst() {
return substring(1);
}
@Override
public String toString() {
try {
return new String(data, "UTF-8");
} catch (UnsupportedEncodingException e) {
return new String(data);
}
}
public int length() {
return data.length;
}
public byte byteAt(int i) {
return data[i];
}
@Override
public boolean equals(Object obj) {
if(obj instanceof byte[]) {
byte[] x = (byte[])obj;
if(x.length != data.length)
return false;
for(int i = 0; i < x.length; i++) {
if(x[i] != data[i])
return false;
}
return true;
}
if(obj instanceof ByteArray)
return equals(((ByteArray)obj).data);
if(obj instanceof String)
return toString().equals(obj);
return false;
}
public ByteArray substring(int beginIndex) {
return substring(beginIndex, data.length);
}
public ByteArray substring(int beginIndex, int endIndex) {
return new ByteArray(data, beginIndex, endIndex);
}
}
/**
* This file is distributed under the GPL
* $Id: ByteArrayTest.java 1619 2008-09-16 16:15:45Z scotta $
*/
/*
package net.bnubot.util;
import junit.framework.TestCase;
// * @author scotta
public class ByteArrayTest extends TestCase {
public void testRemoveFirst() {
ByteArray ba = new ByteArray("abcdefgh");
assertEquals("bcdefgh", ba.removeFirst().toString());
}
public void testConcat() {
ByteArray ba1 = new ByteArray("abcd");
ByteArray ba2 = new ByteArray("efgh");
assertEquals("abcdefgh", ba1.concat(ba2).toString());
}
public void testSubString() {
ByteArray ba = new ByteArray("abcdefgh");
assertEquals("bcdefgh", ba.removeFirst().toString());
}
}
*/
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