/* | |
* 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.action; | |
import java.util.ArrayList; | |
import java.util.List; | |
import org.apache.uima.cas.Type; | |
import org.apache.uima.cas.text.AnnotationFS; | |
import org.apache.uima.jcas.tcas.Annotation; | |
import org.apache.uima.ruta.RutaBlock; | |
import org.apache.uima.ruta.RutaStream; | |
import org.apache.uima.ruta.expression.list.TypeListExpression; | |
import org.apache.uima.ruta.expression.type.TypeExpression; | |
import org.apache.uima.ruta.rule.RuleElement; | |
import org.apache.uima.ruta.rule.RuleMatch; | |
import org.apache.uima.ruta.type.RutaBasic; | |
import org.apache.uima.ruta.visitor.InferenceCrowd; | |
public class TrimAction extends AbstractRutaAction { | |
private TypeListExpression typeList; | |
private List<TypeExpression> types; | |
public TrimAction(List<TypeExpression> types, TypeListExpression typeList) { | |
super(); | |
this.types = types; | |
this.typeList = typeList; | |
} | |
@Override | |
public void execute(RuleMatch match, RuleElement element, RutaStream stream, InferenceCrowd crowd) { | |
List<AnnotationFS> matchedAnnotationsOf = match.getMatchedAnnotationsOf(element); | |
List<Type> typesToTrim = getTypes(element.getParent(), stream); | |
for (AnnotationFS annotationFS : matchedAnnotationsOf) { | |
trimAnnotation(annotationFS, typesToTrim, match, stream); | |
} | |
} | |
private void trimAnnotation(AnnotationFS annotation, List<Type> typesToTrim, RuleMatch match, | |
RutaStream stream) { | |
int oldBegin = annotation.getBegin(); | |
int oldEnd = annotation.getEnd(); | |
int newBegin = oldBegin; | |
int newEnd = oldEnd; | |
RutaBasic beginBasic = stream.getBeginAnchor(oldBegin); | |
while (isPartof(beginBasic, typesToTrim) && beginBasic.getBegin() < oldEnd) { | |
beginBasic = stream.getBasicNextTo(false, beginBasic); | |
} | |
newBegin = beginBasic.getBegin(); | |
RutaBasic endBasic = stream.getEndAnchor(oldEnd); | |
while (isPartof(endBasic, typesToTrim) && endBasic.getEnd() > newBegin) { | |
endBasic = stream.getBasicNextTo(true, endBasic); | |
} | |
newEnd = endBasic.getEnd(); | |
if (oldBegin != newBegin || newEnd != oldEnd) { | |
stream.removeAnnotation(annotation); | |
if (annotation instanceof Annotation) { | |
Annotation a = (Annotation) annotation; | |
a.setBegin(newBegin); | |
a.setEnd(newEnd); | |
} | |
if (newBegin < newEnd) { | |
stream.addAnnotation(annotation, true, match); | |
} | |
} | |
} | |
private boolean isPartof(RutaBasic basic, List<Type> typesToTrim) { | |
for (Type type : typesToTrim) { | |
boolean partOf = basic.isPartOf(type); | |
if (partOf) { | |
return true; | |
} | |
} | |
return false; | |
} | |
private List<Type> getTypes(RutaBlock parent, RutaStream stream) { | |
List<Type> result = new ArrayList<Type>(); | |
if (types != null) { | |
for (TypeExpression each : types) { | |
result.add(each.getType(parent)); | |
} | |
} else if (typeList != null) { | |
result = typeList.getList(parent, stream); | |
} | |
return result; | |
} | |
public TypeListExpression getTypeList() { | |
return typeList; | |
} | |
public List<TypeExpression> getTypes() { | |
return types; | |
} | |
} |