/*
* 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.uima.util;
import java.util.Collection;
import java.util.LinkedList;
import org.apache.uima.cas.FSMatchConstraint;
import org.apache.uima.cas.FeatureStructure;
import org.apache.uima.cas.text.AnnotationFS;
/**
* Checks if an AnnotationFS is contained by the given AnnotationFS.
*/
public final class ContainingConstraint implements FSMatchConstraint {
private static final long serialVersionUID = 1;
private Collection<AnnotationFS> mContainingAnnotations =
new LinkedList<AnnotationFS>();
/**
* Initializes a new instance.
*/
public ContainingConstraint() {
// does currently nothing
}
/**
* Initializes a new instance.
*
* @param containingAnnotation
*/
public ContainingConstraint(AnnotationFS containingAnnotation) {
mContainingAnnotations.add(containingAnnotation);
}
/**
* Checks if the given FeatureStructure match the constraint.
*/
public boolean match(FeatureStructure featureStructure) {
if (!(featureStructure instanceof AnnotationFS)) {
return false;
}
AnnotationFS annotation = (AnnotationFS) featureStructure;
for (AnnotationFS containingAnnotation : mContainingAnnotations) {
if (isContaining(annotation, containingAnnotation)) {
return true;
}
}
return false;
}
private boolean isContaining(AnnotationFS annotation, AnnotationFS containing) {
if ((containing.getBegin() <= annotation.getBegin())
&& (containing.getEnd() >= annotation.getEnd())) {
return true;
} else {
return false;
}
}
}