org.apache.commons.lang.CharEncoding 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.apache.commons.lang;
import java.io.UnsupportedEncodingException;
/**
*
* Character encoding names required of every implementation of the Java platform.
*
*
*
* According to JRE character
* encoding names:
*
* Every implementation of the Java platform is required to support the following character encodings. Consult the
* release documentation for your implementation to see if any other encodings are supported.
*
*
*
* @see JRE character encoding
* names
* @author Apache Software Foundation
* @since 2.1
* @version $Id: CharEncoding.java 437554 2006-08-28 06:21:41Z bayard $
*/
public class CharEncoding {
/**
*
* ISO Latin Alphabet #1, also known as ISO-LATIN-1.
*
*
* Every implementation of the Java platform is required to support this character encoding.
*
*
* @see JRE character
* encoding names
*/
public static final String ISO_8859_1 = "ISO-8859-1";
/**
*
* Seven-bit ASCII, also known as ISO646-US, also known as the Basic Latin block of the Unicode character set.
*
*
* Every implementation of the Java platform is required to support this character encoding.
*
*
* @see JRE character
* encoding names
*/
public static final String US_ASCII = "US-ASCII";
/**
*
* Sixteen-bit Unicode Transformation Format, byte order specified by a mandatory initial byte-order mark (either
* order accepted on input, big-endian used on output).
*
*
* Every implementation of the Java platform is required to support this character encoding.
*
*
* @see JRE character
* encoding names
*/
public static final String UTF_16 = "UTF-16";
/**
*
* Sixteen-bit Unicode Transformation Format, big-endian byte order.
*
*
* Every implementation of the Java platform is required to support this character encoding.
*
*
* @see JRE character
* encoding names
*/
public static final String UTF_16BE = "UTF-16BE";
/**
*
* Sixteen-bit Unicode Transformation Format, little-endian byte order.
*
*
* Every implementation of the Java platform is required to support this character encoding.
*
*
* @see JRE character
* encoding names
*/
public static final String UTF_16LE = "UTF-16LE";
/**
*
* Eight-bit Unicode Transformation Format.
*
*
* Every implementation of the Java platform is required to support this character encoding.
*
*
* @see JRE character
* encoding names
*/
public static final String UTF_8 = "UTF-8";
/**
*
* Returns whether the named charset is supported.
*
*
* This is similar to
* java.nio.charset.Charset.isSupported(String)
*
*
* @param name
* the name of the requested charset; may be either a canonical name or an alias
* @return true if, and only if, support for the named charset is available in the current Java
* virtual machine
*
* @see JRE character
* encoding names
*/
public static boolean isSupported(String name) {
if (name == null) {
return false;
}
try {
new String(ArrayUtils.EMPTY_BYTE_ARRAY, name);
} catch (UnsupportedEncodingException e) {
return false;
}
return true;
}
}