/**
* 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 java.util.Map;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import org.apache.lucene.analysis.CharStream;
import org.apache.lucene.analysis.pattern.PatternReplaceCharFilter;
/**
*
* @version $Id: PatternReplaceCharFilterFactory.java 940813 2010-05-04 11:57:21Z rmuir $
* @since Solr 1.5
*/
public class PatternReplaceCharFilterFactory extends BaseCharFilterFactory {
private Pattern p;
private String replacement;
private int maxBlockChars;
private String blockDelimiters;
public void init(Map<String, String> args) {
super.init( args );
try {
p = Pattern.compile(args.get("pattern"));
} catch (PatternSyntaxException e) {
throw new RuntimeException
("Configuration Error: 'pattern' can not be parsed in " +
this.getClass().getName(), e);
}
replacement = args.get( "replacement" );
if( replacement == null )
replacement = "";
maxBlockChars = getInt( "maxBlockChars", PatternReplaceCharFilter.DEFAULT_MAX_BLOCK_CHARS );
blockDelimiters = args.get( "blockDelimiters" );
}
public CharStream create(CharStream input) {
return new PatternReplaceCharFilter( p, replacement, maxBlockChars, blockDelimiters, input );
}
}