/* | |
* 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.uima.caseditor.editor.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; | |
/** | |
* Filters out all annotations which are not contained by one of the provided | |
* annotations. | |
*/ | |
public class ContainingConstraint implements FSMatchConstraint { | |
private static final long serialVersionUID = 1; | |
private Collection<AnnotationFS> mContainingAnnotations = new LinkedList<AnnotationFS>(); | |
/** | |
* Adds an annotation in which the an other annotations must be contained to match this | |
* constraint. | |
* | |
* @param containingAnnotation | |
*/ | |
public void add(AnnotationFS containingAnnotation) { | |
mContainingAnnotations.add(containingAnnotation); | |
} | |
/** | |
* Checks if the given FeatureStructure is inside the a containing annotation. | |
*/ | |
public boolean match(FeatureStructure featureStructure) { | |
boolean result = false; | |
if (featureStructure instanceof AnnotationFS) { | |
AnnotationFS annotation = (AnnotationFS) featureStructure; | |
for (AnnotationFS containingAnnotation : mContainingAnnotations) { | |
if (isContaining(annotation, containingAnnotation)) { | |
result = true; | |
break; | |
} | |
} | |
} | |
return result; | |
} | |
private boolean isContaining(AnnotationFS annotation, AnnotationFS containing) { | |
boolean isContaining; | |
if (containing.getBegin() <= annotation.getBegin() | |
&& containing.getEnd() >= annotation.getEnd()) { | |
isContaining = true; | |
} else { | |
isContaining = false; | |
} | |
return isContaining; | |
} | |
} |