package org.apache.lucene.collation;
/**
* 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.
*/
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.KeywordTokenizer;
import java.text.Collator;
import java.util.Locale;
import java.io.Reader;
public class TestCollationKeyFilter extends CollationTestBase {
// Neither Java 1.4.2 nor 1.5.0 has Farsi Locale collation available in
// RuleBasedCollator. However, the Arabic Locale seems to order the Farsi
// characters properly.
private Collator collator = Collator.getInstance(new Locale("ar"));
private Analyzer analyzer = new TestAnalyzer(collator);
private String firstRangeBeginning = encodeCollationKey
(collator.getCollationKey(firstRangeBeginningOriginal).toByteArray());
private String firstRangeEnd = encodeCollationKey
(collator.getCollationKey(firstRangeEndOriginal).toByteArray());
private String secondRangeBeginning = encodeCollationKey
(collator.getCollationKey(secondRangeBeginningOriginal).toByteArray());
private String secondRangeEnd = encodeCollationKey
(collator.getCollationKey(secondRangeEndOriginal).toByteArray());
public class TestAnalyzer extends Analyzer {
private Collator collator;
TestAnalyzer(Collator collator) {
this.collator = collator;
}
public TokenStream tokenStream(String fieldName, Reader reader) {
TokenStream result = new KeywordTokenizer(reader);
result = new CollationKeyFilter(result, collator);
return result;
}
}
public void testFarsiQueryParserCollating() throws Exception {
testFarsiQueryParserCollating(analyzer);
}
public void testFarsiRangeFilterCollating() throws Exception {
testFarsiRangeFilterCollating
(analyzer, firstRangeBeginning, firstRangeEnd,
secondRangeBeginning, secondRangeEnd);
}
public void testFarsiRangeQueryCollating() throws Exception {
testFarsiRangeQueryCollating
(analyzer, firstRangeBeginning, firstRangeEnd,
secondRangeBeginning, secondRangeEnd);
}
public void testFarsiConstantScoreRangeQuery() throws Exception {
testFarsiConstantScoreRangeQuery
(analyzer, firstRangeBeginning, firstRangeEnd,
secondRangeBeginning, secondRangeEnd);
}
public void testCollationKeySort() throws Exception {
Analyzer usAnalyzer = new TestAnalyzer(Collator.getInstance(Locale.US));
Analyzer franceAnalyzer
= new TestAnalyzer(Collator.getInstance(Locale.FRANCE));
Analyzer swedenAnalyzer
= new TestAnalyzer(Collator.getInstance(new Locale("sv", "se")));
Analyzer denmarkAnalyzer
= new TestAnalyzer(Collator.getInstance(new Locale("da", "dk")));
// The ICU Collator and java.text.Collator implementations differ in their
// orderings - "BFJDH" is the ordering for java.text.Collator for Locale.US.
testCollationKeySort
(usAnalyzer, franceAnalyzer, swedenAnalyzer, denmarkAnalyzer, "BFJDH");
}
}