/* | |
* 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.ITypeExpression; | |
import org.apache.uima.ruta.rule.EvaluatedCondition; | |
import org.apache.uima.ruta.rule.MatchContext; | |
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(MatchContext context, RutaStream stream, InferenceCrowd crowd) { | |
AnnotationFS annotation = context.getAnnotation(); | |
if (expr instanceof IBooleanExpression) { | |
IBooleanExpression be = (IBooleanExpression) expr; | |
return new EvaluatedCondition(this, be.getBooleanValue(context, stream)); | |
} else if (expr instanceof FeatureMatchExpression) { | |
FeatureMatchExpression fme = (FeatureMatchExpression) expr; | |
ITypeExpression typeExpr = fme.getTypeExpr(context, stream); | |
Type type = typeExpr.getType(context, stream); | |
List<AnnotationFS> annotations = getAnnotationsToCheck(annotation, type, fme, stream); | |
Collection<AnnotationFS> featureAnnotations = fme.getFeatureAnnotations(annotations, stream, | |
context, 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; | |
} | |
} |