/*
* 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.ruta.condition;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.commons.collections.CollectionUtils;
import org.apache.uima.cas.Type;
import org.apache.uima.cas.TypeSystem;
import org.apache.uima.cas.text.AnnotationFS;
import org.apache.uima.ruta.RutaStream;
import org.apache.uima.ruta.expression.IRutaExpression;
import org.apache.uima.ruta.expression.bool.IBooleanExpression;
import org.apache.uima.ruta.expression.feature.FeatureMatchExpression;
import org.apache.uima.ruta.expression.type.TypeExpression;
import org.apache.uima.ruta.rule.EvaluatedCondition;
import org.apache.uima.ruta.rule.RuleElement;
import org.apache.uima.ruta.visitor.InferenceCrowd;
public class ImplicitCondition extends AbstractRutaCondition {
private IRutaExpression expr;
public ImplicitCondition(IRutaExpression expr) {
super();
this.expr = expr;
}
@Override
public EvaluatedCondition eval(AnnotationFS annotation, RuleElement element, RutaStream stream,
InferenceCrowd crowd) {
if (expr instanceof IBooleanExpression) {
IBooleanExpression be = (IBooleanExpression) expr;
return new EvaluatedCondition(this, be.getBooleanValue(element.getParent(), null, stream));
} else if (expr instanceof FeatureMatchExpression) {
FeatureMatchExpression fme = (FeatureMatchExpression) expr;
TypeExpression typeExpr = fme.getTypeExpr();
Type type = typeExpr.getType(element.getParent());
List<AnnotationFS> annotations = getAnnotationsToCheck(annotation, type, fme, stream);
Collection<AnnotationFS> featureAnnotations = fme.getFeatureAnnotations(annotations, stream,
element.getParent(), true);
return new EvaluatedCondition(this, !featureAnnotations.isEmpty());
}
return new EvaluatedCondition(this, false);
}
private List<AnnotationFS> getAnnotationsToCheck(AnnotationFS annotation, Type type,
FeatureMatchExpression fme, RutaStream stream) {
List<AnnotationFS> result = new ArrayList<AnnotationFS>();
TypeSystem typeSystem = stream.getCas().getTypeSystem();
if (typeSystem.subsumes(type, annotation.getType())) {
result.add(annotation);
} else {
Collection<AnnotationFS> beginAnchors = stream.getBeginAnchor(annotation.getBegin())
.getBeginAnchors(type);
Collection<AnnotationFS> endAnchors = stream.getEndAnchor(annotation.getEnd()).getEndAnchors(type);
@SuppressWarnings("unchecked")
Collection<AnnotationFS> intersection = CollectionUtils
.intersection(beginAnchors, endAnchors);
result.addAll(intersection);
}
return result;
}
public IRutaExpression getExpr() {
return expr;
}
public void setExpr(IRutaExpression expr) {
this.expr = expr;
}
}