org.fusesource.hawtbuf.AsciiBuffer Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fusesource.hawtbuf;
/**
* @author Hiram Chirino
*/
final public class AsciiBuffer extends Buffer {
private int hashCode;
private String value;
public AsciiBuffer(Buffer other) {
super(other);
}
public AsciiBuffer(byte[] data, int offset, int length) {
super(data, offset, length);
}
public AsciiBuffer(byte[] data) {
super(data);
}
public AsciiBuffer(String value) {
super(encode(value));
this.value = value;
}
///////////////////////////////////////////////////////////////////
// Overrides
///////////////////////////////////////////////////////////////////
public String toString()
{
if( value == null ) {
value = decode(this);
}
return value;
}
@Override
public boolean equals(Object obj) {
if( obj==this )
return true;
if( obj==null || obj.getClass()!=AsciiBuffer.class )
return false;
return equals((Buffer)obj);
}
@Override
public int hashCode() {
if( hashCode==0 ) {
hashCode = super.hashCode();;
}
return hashCode;
}
///////////////////////////////////////////////////////////////////
// Statics
///////////////////////////////////////////////////////////////////
public static AsciiBuffer ascii(String value) {
if( value==null ) {
return null;
}
return new AsciiBuffer(value);
}
public static AsciiBuffer ascii(Buffer buffer) {
if( buffer==null ) {
return null;
}
if( buffer.getClass() == AsciiBuffer.class ) {
return (AsciiBuffer) buffer;
}
return new AsciiBuffer(buffer);
}
static public byte[] encode(String value)
{
int size = value.length();
byte rc[] = new byte[size];
for( int i=0; i < size; i++ ) {
rc[i] = (byte)(value.charAt(i)&0xFF);
}
return rc;
}
static public String decode(Buffer value)
{
int size = value.getLength();
char rc[] = new char[size];
for( int i=0; i < size; i++ ) {
rc[i] = (char)(value.get(i) & 0xFF );
}
return new String(rc);
}
}