/*
* 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 org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.miscellaneous.LimitTokenCountFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
*
*/
public class LimitTokenCountFilterFactory extends AbstractTokenFilterFactory {
public static final int DEFAULT_MAX_TOKEN_COUNT = 1;
public static final boolean DEFAULT_CONSUME_ALL_TOKENS = false;
final int maxTokenCount;
final boolean consumeAllTokens;
@Inject
public LimitTokenCountFilterFactory(Index index, @IndexSettings Settings indexSettings, Environment env, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
this.maxTokenCount = settings.getAsInt("max_token_count", DEFAULT_MAX_TOKEN_COUNT);
this.consumeAllTokens = settings.getAsBoolean("consume_all_tokens", DEFAULT_CONSUME_ALL_TOKENS);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new LimitTokenCountFilter(tokenStream, maxTokenCount, consumeAllTokens);
}
}