/* | |
* 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.List; | |
import org.apache.uima.cas.FSIterator; | |
import org.apache.uima.cas.Type; | |
import org.apache.uima.cas.text.AnnotationFS; | |
import org.apache.uima.ruta.RutaStream; | |
import org.apache.uima.ruta.expression.type.AbstractTypeListExpression; | |
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 BeforeCondition extends TypeSentiveCondition { | |
public BeforeCondition(ITypeExpression type) { | |
super(type); | |
} | |
public BeforeCondition(AbstractTypeListExpression list) { | |
super(list); | |
} | |
@Override | |
public EvaluatedCondition eval(MatchContext context, RutaStream stream, InferenceCrowd crowd) { | |
AnnotationFS annotation = context.getAnnotation(); | |
if (!isWorkingOnList()) { | |
Type t = type.getType(context, stream); | |
boolean result = check(annotation, stream, t); | |
return new EvaluatedCondition(this, result); | |
} else { | |
boolean result = false; | |
List<Type> types = getList().getList(context, stream); | |
for (Type t : types) { | |
result |= check(annotation, stream, t); | |
if (result == true) { | |
break; | |
} | |
} | |
return new EvaluatedCondition(this, result); | |
} | |
} | |
private boolean check(AnnotationFS annotation, RutaStream stream, Type t) { | |
if (annotation == null || t == null) { | |
return false; | |
} | |
AnnotationFS window = stream.getDocumentAnnotation(); | |
FSIterator<AnnotationFS> it = null; | |
if (window == null || window.equals(stream.getCas().getDocumentAnnotation())) { | |
it = stream.getCas().getAnnotationIndex(t).iterator(); | |
} else { | |
it = stream.getCas().getAnnotationIndex(t).subiterator(window); | |
} | |
it.moveToLast(); | |
if (it.isValid()) { | |
AnnotationFS last = it.get(); | |
if (last.getBegin() >= annotation.getEnd()) { | |
return true; | |
} | |
} | |
return false; | |
} | |
} |