/**
* 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.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.pattern.PatternReplaceFilter;
import java.util.Map;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/**
* @version $Id:$
* @see PatternReplaceFilter
*/
public class PatternReplaceFilterFactory extends BaseTokenFilterFactory {
Pattern p;
String replacement;
boolean all = true;
@Override
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");
String r = args.get("replace");
if (null != r) {
if (r.equals("all")) {
all = true;
} else {
if (r.equals("first")) {
all = false;
} else {
throw new RuntimeException
("Configuration Error: 'replace' must be 'first' or 'all' in "
+ this.getClass().getName());
}
}
}
}
public PatternReplaceFilter create(TokenStream input) {
return new PatternReplaceFilter(input, p, replacement, all);
}
}