/* | |
* 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.uima.cas.Type; | |
import org.apache.uima.cas.text.AnnotationFS; | |
import org.apache.uima.ruta.RutaStream; | |
import org.apache.uima.ruta.expression.number.INumberExpression; | |
import org.apache.uima.ruta.expression.number.SimpleNumberExpression; | |
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.rule.RuleElement; | |
import org.apache.uima.ruta.type.RutaBasic; | |
import org.apache.uima.ruta.visitor.InferenceCrowd; | |
public class ContextCountCondition extends TypeSentiveCondition { | |
private final INumberExpression min; | |
private final INumberExpression max; | |
private final String var; | |
public ContextCountCondition(ITypeExpression type, INumberExpression min, INumberExpression max, | |
String var) { | |
super(type); | |
this.min = min == null ? new SimpleNumberExpression(Integer.MIN_VALUE) : min; | |
this.max = max == null ? new SimpleNumberExpression(Integer.MAX_VALUE) : max; | |
this.var = var; | |
} | |
@Override | |
public EvaluatedCondition eval(MatchContext context, RutaStream stream, InferenceCrowd crowd) { | |
AnnotationFS annotation = context.getAnnotation(); | |
RuleElement element = context.getElement(); | |
Type contextType = type.getType(context, stream); | |
stream.moveToFirst(); | |
List<AnnotationFS> visibleContexts = new ArrayList<AnnotationFS>(); | |
while (stream.isValid()) { | |
RutaBasic each = (RutaBasic) stream.get(); | |
if (each.beginsWith(contextType)) { | |
visibleContexts.addAll(each.getBeginAnchors(contextType)); | |
} | |
stream.moveToNext(); | |
} | |
List<AnnotationFS> overlappingContexts = new ArrayList<AnnotationFS>(); | |
for (AnnotationFS eachContext : visibleContexts) { | |
if (eachContext.getBegin() <= annotation.getBegin() | |
&& eachContext.getEnd() >= annotation.getEnd()) { | |
overlappingContexts.add(eachContext); | |
} | |
} | |
boolean result = false; | |
for (AnnotationFS eachContext : overlappingContexts) { | |
int index = 0; | |
int counter = 0; | |
List<RutaBasic> basicsInWindow = stream.getBasicsInWindow(eachContext); | |
for (RutaBasic eachBasic : basicsInWindow) { | |
Collection<AnnotationFS> beginAnchors = eachBasic.getBeginAnchors(annotation.getType()); | |
if (beginAnchors != null) { | |
for (AnnotationFS each : beginAnchors) { | |
counter++; | |
if (each.getBegin() == annotation.getBegin() | |
&& each.getEnd() == annotation.getEnd() | |
&& (each.getType().equals(annotation.getType()) || stream.getCas() | |
.getTypeSystem().subsumes(annotation.getType(), each.getType()))) { | |
index = counter; | |
} | |
} | |
} | |
} | |
if (var != null) { | |
element.getParent().getEnvironment().setVariableValue(var, index); | |
} | |
boolean value = index >= min.getIntegerValue(context, stream) | |
&& index <= max.getIntegerValue(context, stream); | |
result |= value; | |
if (result) { | |
break; | |
} | |
} | |
return new EvaluatedCondition(this, result); | |
} | |
public INumberExpression getMin() { | |
return min; | |
} | |
public INumberExpression getMax() { | |
return max; | |
} | |
public String getVar() { | |
return var; | |
} | |
} |