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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
package org.elasticsearch.index.analysis;
import com.carrotsearch.hppc.IntObjectHashMap;
import com.google.common.collect.Maps;
import org.elasticsearch.common.joda.FormatDateTimeFormatter;
import org.joda.time.format.DateTimeFormatter;
import java.io.IOException;
import java.util.Map;
/**
*
*/
public class NumericDateAnalyzer extends NumericAnalyzer {
private static final Map> globalAnalyzers = Maps.newHashMap();
public static synchronized NamedAnalyzer buildNamedAnalyzer(FormatDateTimeFormatter formatter, int precisionStep) {
IntObjectHashMap precisionMap = globalAnalyzers.get(formatter.format());
if (precisionMap == null) {
precisionMap = new IntObjectHashMap<>();
globalAnalyzers.put(formatter.format(), precisionMap);
}
NamedAnalyzer namedAnalyzer = precisionMap.get(precisionStep);
if (namedAnalyzer == null) {
String name = "_date/" + ((precisionStep == Integer.MAX_VALUE) ? "max" : precisionStep);
namedAnalyzer = new NamedAnalyzer(name, AnalyzerScope.GLOBAL, new NumericDateAnalyzer(precisionStep, formatter.parser()));
precisionMap.put(precisionStep, namedAnalyzer);
}
return namedAnalyzer;
}
private final int precisionStep;
private final DateTimeFormatter dateTimeFormatter;
public NumericDateAnalyzer(int precisionStep, DateTimeFormatter dateTimeFormatter) {
this.precisionStep = precisionStep;
this.dateTimeFormatter = dateTimeFormatter;
}
@Override
protected NumericDateTokenizer createNumericTokenizer(char[] buffer) throws IOException {
return new NumericDateTokenizer(precisionStep, buffer, dateTimeFormatter);
}
}