From 0c8c9ad976879f7c90f9915a60845ccb0cdb337d Mon Sep 17 00:00:00 2001 From: manuel Date: Wed, 25 Dec 2013 13:25:16 +0100 Subject: initial commit --- .../src/org/apache/commons/codec/Charsets.java | 144 +++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 java/client/src/org/apache/commons/codec/Charsets.java (limited to 'java/client/src/org/apache/commons/codec/Charsets.java') diff --git a/java/client/src/org/apache/commons/codec/Charsets.java b/java/client/src/org/apache/commons/codec/Charsets.java new file mode 100644 index 0000000..73fbc79 --- /dev/null +++ b/java/client/src/org/apache/commons/codec/Charsets.java @@ -0,0 +1,144 @@ +/* + * 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.codec; + +import java.nio.charset.Charset; + +/** + * Charsets required of every implementation of the Java platform. + * + * From the Java documentation Standard + * charsets: + *

+ * 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. Consult the release + * documentation for your implementation to see if any other encodings are supported. + *

+ * + * + * + * This perhaps would best belong in the Commons Lang project. Even if a similar class is defined in Commons Lang, it is + * not foreseen that Commons Codec would be made to depend on Commons Lang. + * + *

+ * This class is immutable and thread-safe. + *

+ * + * @see Standard charsets + * @since 1.7 + * @version $Id: CharEncoding.java 1173287 2011-09-20 18:16:19Z ggregory $ + */ +public class Charsets { + + // + // This class should only contain Charset instances for required encodings. This guarantees that it will load + // correctly and without delay on all Java platforms. + // + + /** + * Returns the given Charset or the default Charset if the given Charset is null. + * + * @param charset + * A charset or null. + * @return the given Charset or the default Charset if the given Charset is null + */ + public static Charset toCharset(final Charset charset) { + return charset == null ? Charset.defaultCharset() : charset; + } + + /** + * Returns a Charset for the named charset. If the name is null, return the default Charset. + * + * @param charset + * The name of the requested charset, may be null. + * @return a Charset for the named charset + * @throws java.nio.charset.UnsupportedCharsetException + * If the named charset is unavailable + */ + public static Charset toCharset(final String charset) { + return charset == null ? Charset.defaultCharset() : Charset.forName(charset); + } + + /** + * CharEncodingISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1. + *

+ * Every implementation of the Java platform is required to support this character encoding. + * + * @see Standard charsets + */ + public static final Charset ISO_8859_1 = Charset.forName(CharEncoding.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 Standard charsets + */ + public static final Charset US_ASCII = Charset.forName(CharEncoding.US_ASCII); + + /** + * Sixteen-bit Unicode Transformation Format, The 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 Standard charsets + */ + public static final Charset UTF_16 = Charset.forName(CharEncoding.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 Standard charsets + */ + public static final Charset UTF_16BE = Charset.forName(CharEncoding.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 Standard charsets + */ + public static final Charset UTF_16LE = Charset.forName(CharEncoding.UTF_16LE); + + /** + * Eight-bit Unicode Transformation Format. + *

+ * Every implementation of the Java platform is required to support this character encoding. + * + * @see Standard charsets + */ + public static final Charset UTF_8 = Charset.forName(CharEncoding.UTF_8); +} -- cgit v1.2.3