001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.commons.io.charset;
019
020import java.nio.charset.Charset;
021import java.nio.charset.CharsetDecoder;
022
023/**
024 * Works with {@link CharsetDecoder}.
025 *
026 * @since 2.12.0
027 */
028public final class CharsetDecoders {
029
030    /**
031     * Returns the given non-null CharsetDecoder or a new default CharsetDecoder.
032     *
033     * @param charsetDecoder The CharsetDecoder to test.
034     * @return the given non-null CharsetDecoder or a new default CharsetDecoder.
035     */
036    public static CharsetDecoder toCharsetDecoder(final CharsetDecoder charsetDecoder) {
037        return charsetDecoder != null ? charsetDecoder : Charset.defaultCharset().newDecoder();
038    }
039
040    /** No instances. */
041    private CharsetDecoders() {
042        // No instances.
043    }
044}