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 java.io.Reader;
  import java.util.Map;
  
  import org.apache.lucene.analysis.Tokenizer;
  import org.apache.lucene.analysis.path.PathHierarchyTokenizer;
  import org.apache.lucene.analysis.path.ReversePathHierarchyTokenizer;
  
  
  /**
   * Factory for {@link PathHierarchyTokenizer}. 
   * <pre class="prettyprint" >
   * &lt;fieldType name="text_path" class="solr.TextField" positionIncrementGap="100"&gt;
   *   &lt;analyzer&gt;
   *     &lt;tokenizer class="solr.PathHierarchyTokenizerFactory" delimiter="\" replace="/"/&gt;
   *   &lt;/analyzer&gt;
   * &lt;/fieldType&gt;</pre> 
   * @version $Id$
   */
  public class PathHierarchyTokenizerFactory extends BaseTokenizerFactory {
    
    private char delimiter;
    private char replacement;
    private boolean reverse = false;
    private int skip =  PathHierarchyTokenizer.DEFAULT_SKIP;
    
    /**
     * Require a configured pattern
     */
    @Override
    public void init(Map<String,String> args){
      super.init( args );
      
      String v = args.get( "delimiter" );
      if( v != null ){
        if( v.length() != 1 ){
          throw new IllegalArgumentException( "delimiter should be a char. \"" + v + "\" is invalid" );
        }
        else{
          delimiter = v.charAt(0);
        }
      }
      else{
        delimiter = PathHierarchyTokenizer.DEFAULT_DELIMITER;
      }
      
      v = args.get( "replace" );
      if( v != null ){
        if( v.length() != 1 ){
          throw new IllegalArgumentException( "replace should be a char. \"" + v + "\" is invalid" );
        }
        else{
          replacement = v.charAt(0);
        }
      }
      else{
        replacement = delimiter;
      }
      
      v = args.get( "reverse" );
      if( v != null ){
        reverse = "true".equals( v );
      }
  
      v = args.get( "skip" );
      if( v != null ){
        skip = Integer.parseInt( v );
      }
    }
  
    public Tokenizer create(Reader input) {
      if( reverse ) {
        return new ReversePathHierarchyTokenizer(input, delimiter, replacement, skip);
      }
      return new PathHierarchyTokenizer(input, delimiter, replacement, skip);
    }
  }
  
  
  