org.apache.solr.analysis.ElisionFilterFactory Maven / Gradle / Ivy


/**
 * 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.
 */


package org.apache.solr.analysis;

import org.apache.solr.common.ResourceLoader;
import org.apache.solr.util.plugin.ResourceLoaderAware;
import org.apache.lucene.analysis.StopFilter;
import org.apache.lucene.analysis.fr.*;
import java.io.IOException;
import java.util.Set;
import java.util.HashSet;
import java.util.Arrays;
import java.util.Iterator;
import org.apache.lucene.analysis.Token;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.TokenFilter;
import java.util.Map;
import java.util.List;
import java.util.Set;
import java.io.IOException;

public class ElisionFilterFactory extends BaseTokenFilterFactory implements ResourceLoaderAware {

  private Set articles;

  public void inform(ResourceLoader loader) {
    String articlesFile = args.get("articles");

    if (articlesFile != null) {
      try {
        List wlist = loader.getLines(articlesFile);
        articles = StopFilter.makeStopSet((String[])wlist.toArray(new String[0]), false);
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    } else {
      throw new RuntimeException("No articles specified for ElisionFilterFactory");
    }
  }

  public ElisionFilter create(TokenStream input) {
    return new ElisionFilter(input,articles);
  }
}