Update #0 - First Release

sources/main/java/org/apache/commons/lang3/CharEncoding.java

@@ -0,0 +1,159 @@
+/*
+ * 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.lang3;
+
+import java.nio.charset.Charset;
+import java.nio.charset.IllegalCharsetNameException;
+
+/**
+ * <p>
+ * Character encoding names required of every implementation of the Java
+ * platform.
+ * </p>
+ *
+ * <p>
+ * According to <a href=
+ * "http://docs.oracle.com/javase/1.3/docs/api/java/lang/package-summary.html#charenc">JRE
+ * character encoding names</a>:
+ * </p>
+ *
+ * <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://docs.oracle.com/javase/6/docs/technotes/guides/intl/encoding.doc.html">JRE
+ *      character encoding names</a>
+ * @since 2.1
+ * @deprecated Java 7 introduced {@link java.nio.charset.StandardCharsets},
+ *             which defines these constants as {@link Charset} objects. Use
+ *             {@link Charset#name()} to get the string values provided in this
+ *             class. This class will be removed in a future release.
+ */
+@Deprecated
+public class CharEncoding {
+
+	/**
+	 * <p>
+	 * ISO Latin Alphabet #1, also known as ISO-LATIN-1.
+	 * </p>
+	 *
+	 * <p>
+	 * Every implementation of the Java platform is required to support this
+	 * character encoding.
+	 * </p>
+	 */
+	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>
+	 */
+	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>
+	 */
+	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>
+	 */
+	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>
+	 */
+	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>
+	 */
+	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://docs.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html#isSupported%28java.lang.String%29">
+	 * java.nio.charset.Charset.isSupported(String)</a> but handles more formats
+	 * </p>
+	 *
+	 * @param name the name of the requested charset; may be either a canonical name
+	 *             or an alias, null returns false
+	 * @return {@code true} if the charset is available in the current Java virtual
+	 *         machine
+	 * @deprecated Please use {@link Charset#isSupported(String)} instead, although
+	 *             be aware that {@code null} values are not accepted by that method
+	 *             and an {@link IllegalCharsetNameException} may be thrown.
+	 */
+	@Deprecated
+	public static boolean isSupported(final String name) {
+		if (name == null) {
+			return false;
+		}
+		try {
+			return Charset.isSupported(name);
+		} catch (final IllegalCharsetNameException ex) {
+			return false;
+		}
+	}
+
+}