commons-codec-1.11.jar - Apache Commons Codec

commons-codec-1.11.jar is the JAR file for Apache Commons Codec 1.11, which provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and URLs.

JAR File Size and Download Location:

JAR name: commons-codec.jar
Target JDK version: 1.8
Dependency: None
File name: commons-codec-1.11.jar
File size: 335,042 bytes
Date modified: 10/17/2017 
Download: Apache Commons Codec

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org/apache/commons/codec/Charsets.java

/*
 * 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 <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard
 * charsets</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. Consult the release
 * documentation for your implementation to see if any other encodings are supported. </cite>
 * </p>
 *
 * <ul>
 * <li><code>US-ASCII</code><br>
 * Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the Unicode character set.</li>
 * <li><code>ISO-8859-1</code><br>
 * ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1.</li>
 * <li><code>UTF-8</code><br>
 * Eight-bit Unicode Transformation Format.</li>
 * <li><code>UTF-16BE</code><br>
 * Sixteen-bit Unicode Transformation Format, big-endian byte order.</li>
 * <li><code>UTF-16LE</code><br>
 * Sixteen-bit Unicode Transformation Format, little-endian byte order.</li>
 * <li><code>UTF-16</code><br>
 * 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.)</li>
 * </ul>
 *
 * 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.
 *
 * <p>
 * This class is immutable and thread-safe.
 * </p>
 *
 * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
 * @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.
     * <p>
     * Every implementation of the Java platform is required to support this character encoding.
     * </p>
     * <p>
     * On Java 7 or later, use {@link java.nio.charset.StandardCharsets#ISO_8859_1} instead.
     * </p>
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
     */
    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.
     * <p>
     * Every implementation of the Java platform is required to support this character encoding.
     * </p>
     * <p>
     * On Java 7 or later, use {@link java.nio.charset.StandardCharsets#ISO_8859_1} instead.
     * </p>
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
     */
    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)
     * <p>
     * Every implementation of the Java platform is required to support this character encoding.
     * </p>
     * <p>
     * On Java 7 or later, use {@link java.nio.charset.StandardCharsets#ISO_8859_1} instead.
     * </p>
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
     */
    public static final Charset UTF_16 = Charset.forName(CharEncoding.UTF_16);

    /**
     * Sixteen-bit Unicode Transformation Format, big-endian byte order.
     * <p>
     * Every implementation of the Java platform is required to support this character encoding.
     * </p>
     * <p>
     * On Java 7 or later, use {@link java.nio.charset.StandardCharsets#ISO_8859_1} instead.
     * </p>
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
     */
    public static final Charset UTF_16BE = Charset.forName(CharEncoding.UTF_16BE);

    /**
     * Sixteen-bit Unicode Transformation Format, little-endian byte order.
     * <p>
     * Every implementation of the Java platform is required to support this character encoding.
     * </p>
     * <p>
     * On Java 7 or later, use {@link java.nio.charset.StandardCharsets#ISO_8859_1} instead.
     * </p>
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
     */
    public static final Charset UTF_16LE = Charset.forName(CharEncoding.UTF_16LE);

    /**
     * Eight-bit Unicode Transformation Format.
     * <p>
     * Every implementation of the Java platform is required to support this character encoding.
     * </p>
     * <p>
     * On Java 7 or later, use {@link java.nio.charset.StandardCharsets#ISO_8859_1} instead.
     * </p>
     *
     * @see <a href="http://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html">Standard charsets</a>
     */
    public static final Charset UTF_8 = Charset.forName(CharEncoding.UTF_8);
}

org/apache/commons/codec/Charsets.java

 

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