content: package org.apache.solr.analysis;
  
  /**
   * 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.ngram.EdgeNGramTokenizer;
  
  import java.io.Reader;
  import java.util.Map;
  
  /**
   * Creates new instances of {@link EdgeNGramTokenizer}.
   * <pre class="prettyprint" >
   * &lt;fieldType name="text_edgngrm" class="solr.TextField" positionIncrementGap="100"&gt;
   *   &lt;analyzer&gt;
   *     &lt;tokenizer class="solr.EdgeNGramTokenizerFactory" side="front" minGramSize="1" maxGramSize="1"/&gt;
   *   &lt;/analyzer&gt;
   * &lt;/fieldType&gt;</pre>
   * @version $Id$
   */
  public class EdgeNGramTokenizerFactory extends BaseTokenizerFactory {
      private int maxGramSize = 0;
  
      private int minGramSize = 0;
  
      private String side;
  
      @Override
      public void init(Map<String, String> args) {
          super.init(args);
          String maxArg = args.get("maxGramSize");
          maxGramSize = (maxArg != null ? Integer.parseInt(maxArg) : EdgeNGramTokenizer.DEFAULT_MAX_GRAM_SIZE);
  
          String minArg = args.get("minGramSize");
          minGramSize = (minArg != null ? Integer.parseInt(minArg) : EdgeNGramTokenizer.DEFAULT_MIN_GRAM_SIZE);
  
          side = args.get("side");
          if (side == null) {
              side = EdgeNGramTokenizer.Side.FRONT.getLabel();
          }
      }
  
      public EdgeNGramTokenizer create(Reader input) {
          return new EdgeNGramTokenizer(input, side, minGramSize, maxGramSize);
      }
  }
  