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" >
* <fieldType name="text_path" class="solr.TextField" positionIncrementGap="100">
* <analyzer>
* <tokenizer class="solr.PathHierarchyTokenizerFactory" delimiter="\" replace="/"/>
* </analyzer>
* </fieldType></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);
}
}