77 lines
2.5 KiB
Java
77 lines
2.5 KiB
Java
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.commons.lang3;
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import java.nio.charset.Charset;
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import java.nio.charset.UnsupportedCharsetException;
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/**
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* Internal use only.
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* <p>
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* Provides utilities for {@link Charset}.
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* </p>
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* <p>
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* Package private since Apache Commons IO already provides a Charsets because
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* {@link Charset} is in {@code java.nio.charset}.
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* </p>
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*
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* @since 3.10
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*/
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class Charsets {
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/**
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* Returns the given {@code charset} or the default Charset if {@code charset}
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* is null.
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*
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* @param charset a Charset or null.
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* @return the given {@code charset} or the default Charset if {@code charset}
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* is null.
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*/
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static Charset toCharset(final Charset charset) {
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return charset == null ? Charset.defaultCharset() : charset;
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}
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/**
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* Returns the given {@code charset} or the default Charset if {@code charset}
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* is null.
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*
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* @param charsetName a Charset or null.
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* @return the given {@code charset} or the default Charset if {@code charset}
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* is null.
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* @throws UnsupportedCharsetException If no support for the named charset is
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* available in this instance of the Java
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* virtual machine
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*/
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static Charset toCharset(final String charsetName) {
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return charsetName == null ? Charset.defaultCharset() : Charset.forName(charsetName);
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}
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/**
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* Returns the given {@code charset} or the default Charset if {@code charset}
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* is null.
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*
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* @param charsetName a Charset or null.
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* @return the given {@code charset} or the default Charset if {@code charset}
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* is null.
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*/
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static String toCharsetName(final String charsetName) {
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return charsetName == null ? Charset.defaultCharset().name() : charsetName;
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}
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}
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