63 lines
2.0 KiB
Java
63 lines
2.0 KiB
Java
/*
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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.text.lookup;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import java.nio.charset.StandardCharsets;
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/**
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* Encodes URL Strings using the UTF-8 encoding.
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*
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* @see URLEncoder
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* @since 1.5
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*/
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final class UrlEncoderStringLookup extends AbstractStringLookup {
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/**
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* Defines the singleton for this class.
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*/
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static final UrlEncoderStringLookup INSTANCE = new UrlEncoderStringLookup();
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/**
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* This ctor is not private to allow Mockito spying.
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*/
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UrlEncoderStringLookup() {
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// empty
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}
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String encode(final String key, final String enc) throws UnsupportedEncodingException {
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return URLEncoder.encode(key, enc);
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}
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@Override
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public String lookup(final String key) {
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if (key == null) {
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return null;
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}
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final String enc = StandardCharsets.UTF_8.name();
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try {
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return encode(key, enc);
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} catch (final UnsupportedEncodingException e) {
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// Can't happen since UTF-8 is required by the Java specification.
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throw IllegalArgumentExceptions.format(e, "%s: source=%s, encoding=%s", e, key, enc);
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}
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}
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}
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