opennlp.tools.namefind.BilouNameFinderSequenceValidator Maven / Gradle / Ivy
/*
* 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 opennlp.tools.namefind;
import opennlp.tools.util.SequenceValidator;
public class BilouNameFinderSequenceValidator implements
SequenceValidator {
public boolean validSequence(int i, String[] inputSequence,
String[] outcomesSequence, String outcome) {
if (outcome.endsWith(BilouCodec.CONTINUE) || outcome.endsWith(BilouCodec.LAST)) {
int li = outcomesSequence.length - 1;
if (li == -1) {
return false;
} else if (outcomesSequence[li].endsWith(BilouCodec.OTHER) ||
outcomesSequence[li].endsWith(BilouCodec.UNIT)) {
return false;
} else if (outcomesSequence[li].endsWith(BilouCodec.LAST) &&
(outcome.endsWith(BilouCodec.CONTINUE) || outcome.endsWith(BilouCodec.LAST))) {
return false;
} else if (outcomesSequence[li].endsWith(BilouCodec.CONTINUE) ||
outcomesSequence[li].endsWith(BilouCodec.START)) {
// if it is continue, we have to check if previous match was of the same type
String previousNameType = NameFinderME.extractNameType(outcomesSequence[li]);
String nameType = NameFinderME.extractNameType(outcome);
if (previousNameType != null || nameType != null) {
if (nameType != null) {
if (nameType.equals(previousNameType)) {
return true;
}
}
return false; // outcomes types are not equal
}
}
}
if (outcomesSequence.length > 0) {
if (outcome.endsWith(BilouCodec.START)
|| outcome.endsWith(BilouCodec.OTHER)
|| outcome.endsWith(BilouCodec.UNIT)) {
if (outcomesSequence[outcomesSequence.length - 1].endsWith(BilouCodec.START)
|| outcomesSequence[outcomesSequence.length - 1].endsWith(BilouCodec.CONTINUE)) {
return false;
}
}
}
return true;
}
}