You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@commons.apache.org by gg...@apache.org on 2004/08/03 19:15:32 UTC
cvs commit: jakarta-commons/lang/src/java/org/apache/commons/lang CharacterEncoding.java
ggregory 2004/08/03 10:15:32
Added: lang/src/java/org/apache/commons/lang CharacterEncoding.java
Log:
Bugzilla Bug 30334
[lang] New class proposal: CharacterEncoding
http://issues.apache.org/bugzilla/show_bug.cgi?id=30334
Comitted to CVS for further comments.
Revision Changes Path
1.1 jakarta-commons/lang/src/java/org/apache/commons/lang/CharacterEncoding.java
Index: CharacterEncoding.java
===================================================================
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed 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;
/**
* TODO: Accept/Reject for 2.1.
*
* Character encoding names required of every implementation of the Java platform.
*
* According to the Java documentation <a
* href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character encoding names
* </a>:
* <p>
* <cite>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. </cite>
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character encoding
* names </a>
* @author Apache Software Foundation
* @since 2.1
* @version $Id: CharacterEncoding.java,v 1.1 2004/08/03 17:15:32 ggregory Exp $
*/
public class CharacterEncoding {
/**
* <p>
* ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1.
* </p>
* <p>
* Every implementation of the Java platform is required to support this character encoding.
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
public static final String ISO_8859_1 = "ISO-8859-1";
/**
* <p>
* Seven-bit ASCII, also known as ISO646-US, also known as the Basic Latin block of the Unicode character set.
* </p>
* <p>
* Every implementation of the Java platform is required to support this character encoding.
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
public static final String US_ASCII = "US-ASCII";
/**
* <p>
* 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).
* </p>
* <p>
* Every implementation of the Java platform is required to support this character encoding.
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
public static final String UTF_16 = "UTF-16";
/**
* <p>
* Sixteen-bit Unicode Transformation Format, big-endian byte order.
* </p>
* <p>
* Every implementation of the Java platform is required to support this character encoding.
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
public static final String UTF_16BE = "UTF-16BE";
/**
* <p>
* Sixteen-bit Unicode Transformation Format, little-endian byte order.
* </p>
* <p>
* Every implementation of the Java platform is required to support this character encoding.
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
public static final String UTF_16LE = "UTF-16LE";
/**
* <p>
* Eight-bit Unicode Transformation Format.
* </p>
* <p>
* Every implementation of the Java platform is required to support this character encoding.
* </p>
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
public static final String UTF_8 = "UTF-8";
/**
* <p>
* Returns whether the named charset is supported.
* </p>
* <p>
* This is similar to <a
* href="http://java.sun.com/j2se/1.4.2/docs/api/java/nio/charset/Charset.html#isSupported(java.lang.String)">java.nio.charset.Charset.isSupported(String)
* </a>
* </p>
*
* @param name
* The name of the requested charset; may be either a canonical name or an alias
* @return <code>true</code> if, and only if, support for the named charset is available in the current Java virtual machine
*
* @see <a href="http://java.sun.com/j2se/1.3/docs/api/java/lang/package-summary.html#charenc">JRE character
* encoding names </a>
*/
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;
}
}
---------------------------------------------------------------------
To unsubscribe, e-mail: commons-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-dev-help@jakarta.apache.org