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/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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 org.elasticsearch.common.Strings;
import org.elasticsearch.common.collect.ImmutableMap;
import org.elasticsearch.common.component.CloseableComponent;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.AbstractIndexComponent;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
import javax.annotation.Nullable;
import java.util.Map;
import static org.elasticsearch.common.collect.Maps.*;
/**
* @author kimchy (Shay Banon)
*/
public class AnalysisService extends AbstractIndexComponent implements CloseableComponent {
private final ImmutableMap analyzers;
private final ImmutableMap tokenizers;
private final ImmutableMap charFilters;
private final ImmutableMap tokenFilters;
public AnalysisService(Index index) {
this(index, ImmutableSettings.Builder.EMPTY_SETTINGS, null, null, null, null);
}
@Inject public AnalysisService(Index index, @IndexSettings Settings indexSettings,
@Nullable Map analyzerFactoryFactories,
@Nullable Map tokenizerFactoryFactories,
@Nullable Map charFilterFactoryFactories,
@Nullable Map tokenFilterFactoryFactories) {
super(index, indexSettings);
Map analyzerProviders = newHashMap();
if (analyzerFactoryFactories != null) {
Map analyzersSettings = indexSettings.getGroups("index.analysis.analyzer");
for (Map.Entry entry : analyzerFactoryFactories.entrySet()) {
String analyzerName = entry.getKey();
AnalyzerProviderFactory analyzerFactoryFactory = entry.getValue();
Settings analyzerSettings = analyzersSettings.get(analyzerName);
if (analyzerSettings == null) {
analyzerSettings = ImmutableSettings.Builder.EMPTY_SETTINGS;
}
AnalyzerProvider analyzerFactory = analyzerFactoryFactory.create(analyzerName, analyzerSettings);
analyzerProviders.put(analyzerName, analyzerFactory);
}
}
if (!analyzerProviders.containsKey("default")) {
analyzerProviders.put("default", new StandardAnalyzerProvider(index, indexSettings, "default", ImmutableSettings.Builder.EMPTY_SETTINGS));
}
if (!analyzerProviders.containsKey("default_index")) {
analyzerProviders.put("default_index", analyzerProviders.get("default"));
}
if (!analyzerProviders.containsKey("default_search")) {
analyzerProviders.put("default_search", analyzerProviders.get("default"));
}
Map analyzers = newHashMap();
for (AnalyzerProvider analyzerFactory : analyzerProviders.values()) {
NamedAnalyzer analyzer = new NamedAnalyzer(analyzerFactory.name(), analyzerFactory.scope(), analyzerFactory.get());
analyzers.put(analyzerFactory.name(), analyzer);
String strAliases = indexSettings.get("index.analysis.analyzer." + analyzerFactory.name() + ".alias");
if (strAliases != null) {
for (String alias : Strings.commaDelimitedListToStringArray(strAliases)) {
analyzers.put(alias, analyzer);
}
}
String[] aliases = indexSettings.getAsArray("index.analysis.analyzer." + analyzerFactory.name() + ".alias");
for (String alias : aliases) {
analyzers.put(alias, analyzer);
}
}
this.analyzers = ImmutableMap.copyOf(analyzers);
Map tokenizers = newHashMap();
if (tokenizerFactoryFactories != null) {
Map tokenizersSettings = indexSettings.getGroups("index.analysis.tokenizer");
for (Map.Entry entry : tokenizerFactoryFactories.entrySet()) {
String tokenizerName = entry.getKey();
TokenizerFactoryFactory tokenizerFactoryFactory = entry.getValue();
Settings tokenizerSettings = tokenizersSettings.get(tokenizerName);
if (tokenizerSettings == null) {
tokenizerSettings = ImmutableSettings.Builder.EMPTY_SETTINGS;
}
TokenizerFactory tokenizerFactory = tokenizerFactoryFactory.create(tokenizerName, tokenizerSettings);
tokenizers.put(tokenizerName, tokenizerFactory);
}
}
this.tokenizers = ImmutableMap.copyOf(tokenizers);
Map charFilters = newHashMap();
if (charFilterFactoryFactories != null) {
Map charFiltersSettings = indexSettings.getGroups("index.analysis.char_filter");
for (Map.Entry entry : charFilterFactoryFactories.entrySet()) {
String charFilterName = entry.getKey();
CharFilterFactoryFactory charFilterFactoryFactory = entry.getValue();
Settings charFilterSettings = charFiltersSettings.get(charFilterName);
if (charFilterSettings == null) {
charFilterSettings = ImmutableSettings.Builder.EMPTY_SETTINGS;
}
CharFilterFactory tokenFilterFactory = charFilterFactoryFactory.create(charFilterName, charFilterSettings);
charFilters.put(charFilterName, tokenFilterFactory);
}
}
this.charFilters = ImmutableMap.copyOf(charFilters);
Map tokenFilters = newHashMap();
if (tokenFilterFactoryFactories != null) {
Map tokenFiltersSettings = indexSettings.getGroups("index.analysis.filter");
for (Map.Entry entry : tokenFilterFactoryFactories.entrySet()) {
String tokenFilterName = entry.getKey();
TokenFilterFactoryFactory tokenFilterFactoryFactory = entry.getValue();
Settings tokenFilterSettings = tokenFiltersSettings.get(tokenFilterName);
if (tokenFilterSettings == null) {
tokenFilterSettings = ImmutableSettings.Builder.EMPTY_SETTINGS;
}
TokenFilterFactory tokenFilterFactory = tokenFilterFactoryFactory.create(tokenFilterName, tokenFilterSettings);
tokenFilters.put(tokenFilterName, tokenFilterFactory);
}
}
this.tokenFilters = ImmutableMap.copyOf(tokenFilters);
}
public void close() {
for (NamedAnalyzer analyzer : analyzers.values()) {
if (analyzer.scope() == AnalyzerScope.INDEX) {
analyzer.close();
}
}
}
public NamedAnalyzer analyzer(String name) {
return analyzers.get(name);
}
public NamedAnalyzer defaultAnalyzer() {
return analyzers.get("default");
}
public NamedAnalyzer defaultIndexAnalyzer() {
return defaultAnalyzer();
}
public NamedAnalyzer defaultSearchAnalyzer() {
return defaultAnalyzer();
}
public TokenizerFactory tokenizer(String name) {
return tokenizers.get(name);
}
public CharFilterFactory charFilter(String name) {
return charFilters.get(name);
}
public TokenFilterFactory tokenFilter(String name) {
return tokenFilters.get(name);
}
}