81 lines
2.6 KiB
Java
81 lines
2.6 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.tomcat.util.buf;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Locale;
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import java.util.Set;
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import org.junit.Assert;
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import org.junit.Test;
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public class TestCharsetCache {
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@Test
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public void testAllKnownCharsets() {
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Set<String> known = new HashSet<>();
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known.addAll(Arrays.asList(CharsetCache.LAZY_CHARSETS));
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Set<String> initial = new HashSet<>();
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initial.addAll(Arrays.asList(CharsetCache.INITIAL_CHARSETS));
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List<String> cacheMisses = new ArrayList<>();
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for (Charset charset: Charset.availableCharsets().values()) {
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String name = charset.name().toLowerCase(Locale.ENGLISH);
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// No need to test the charsets that are pre-loaded
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if (initial.contains(name)) {
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continue;
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}
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if (!known.contains(name)) {
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cacheMisses.add(name);
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}
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for (String alias : charset.aliases()) {
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alias = alias.toLowerCase(Locale.ENGLISH);
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if (!known.contains(alias)) {
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cacheMisses.add(alias);
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}
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}
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}
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if (cacheMisses.size() != 0) {
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StringBuilder sb = new StringBuilder();
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Collections.sort(cacheMisses);
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for (String name : cacheMisses) {
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if (sb.length() == 0) {
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sb.append('"');
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} else {
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sb.append(", \"");
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}
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sb.append(name.toLowerCase(Locale.ENGLISH));
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sb.append('"');
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}
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System.out.println(sb.toString());
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}
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Assert.assertTrue(cacheMisses.size() == 0);
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}
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}
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