/**
* 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.ctakes.dictionary.lookup2.ae;
import org.apache.ctakes.dictionary.lookup2.dictionary.RareWordDictionary;
import org.apache.ctakes.dictionary.lookup2.term.RareWordTerm;
import org.apache.ctakes.dictionary.lookup2.term.SpannedRareWordTerm;
import org.apache.ctakes.dictionary.lookup2.util.FastLookupToken;
import org.apache.ctakes.dictionary.lookup2.util.TokenMatchUtil;
import java.util.Collection;
import java.util.List;
/**
* A direct string match using phrase permutations
* Author: SPF
* Affiliation: CHIP-NLP
* Date: 11/19/13
*/
final public class DefaultJCasTermAnnotator extends AbstractJCasTermAnnotator {
/**
* {@inheritDoc}
*/
@Override
public void findTerms( final RareWordDictionary dictionary,
final List<FastLookupToken> allTokens, final List<Integer> lookupTokenIndices,
final Collection<SpannedRareWordTerm> termsFromDictionary ) {
Collection<RareWordTerm> rareWordHits;
for ( Integer lookupTokenIndex : lookupTokenIndices ) {
final FastLookupToken lookupToken = allTokens.get( lookupTokenIndex );
rareWordHits = dictionary.getRareWordHits( lookupToken );
if ( rareWordHits == null || rareWordHits.isEmpty() ) {
continue;
}
for ( RareWordTerm rareWordHit : rareWordHits ) {
if ( rareWordHit.getTokenCount() == 1 ) {
// Single word term, add and move on
termsFromDictionary.add( new SpannedRareWordTerm( rareWordHit, lookupToken.getTextSpan() ) );
continue;
}
final int termStartIndex = lookupTokenIndex - rareWordHit.getRareWordIndex();
if ( termStartIndex < 0 || termStartIndex + rareWordHit.getTokenCount() > allTokens.size() ) {
// term will extend beyond window
continue;
}
final int termEndIndex = termStartIndex + rareWordHit.getTokenCount() - 1;
if ( TokenMatchUtil.isTermMatch( rareWordHit, allTokens, termStartIndex, termEndIndex ) ) {
final int spanStart = allTokens.get( termStartIndex ).getStart();
final int spanEnd = allTokens.get( termEndIndex ).getEnd();
termsFromDictionary.add( new SpannedRareWordTerm( rareWordHit, spanStart, spanEnd ) );
}
}
}
}
}