/*
* Copyright 2010 Ning, Inc.
*
* Ning 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 com.ning.http.util;
import java.io.UnsupportedEncodingException;
/**
* Wrapper class for more convenient (and possibly more efficient in future)
* UTF-8 encoding and decoding.
*/
public class UTF8Codec {
private final static String ENCODING_UTF8 = "UTF-8";
// When we move to JDK 1.6+, we can do this:
/*
import java.nio.charset.Charset;
private final static Charset utf8;
static {
utf8 = Charset.forName("UTF-8");
}
public static byte[] toUTF8(String input) {
return input.getBytes(utf8);
}
public static String fromUTF8(byte[] input) {
return fromUTF8(input, 0, input.length);
}
public static String fromUTF8(byte[] input, int offset, int len) {
return new String(input, offset, len, utf8);
}
*/
// But until then (with 1.5)
public static byte[] toUTF8(String input) {
try {
return input.getBytes(ENCODING_UTF8);
} catch (UnsupportedEncodingException e) { // never happens, but since it's declared...
throw new IllegalStateException();
}
}
public static String fromUTF8(byte[] input) {
return fromUTF8(input, 0, input.length);
}
public static String fromUTF8(byte[] input, int offset, int len) {
try {
return new String(input, offset, len, ENCODING_UTF8);
} catch (UnsupportedEncodingException e) { // never happens
throw new IllegalStateException();
}
}
}