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* 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
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package org.apache.uima.ruta.action;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.uima.cas.FSIterator;
import org.apache.uima.cas.Feature;
import org.apache.uima.cas.FeatureStructure;
import org.apache.uima.cas.Type;
import org.apache.uima.cas.TypeSystem;
import org.apache.uima.cas.text.AnnotationFS;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.cas.FSArray;
import org.apache.uima.jcas.cas.TOP;
import org.apache.uima.jcas.tcas.Annotation;
import org.apache.uima.ruta.RutaStream;
import org.apache.uima.ruta.expression.RutaExpression;
import org.apache.uima.ruta.expression.list.NumberListExpression;
import org.apache.uima.ruta.expression.number.NumberExpression;
import org.apache.uima.ruta.expression.string.StringExpression;
import org.apache.uima.ruta.expression.type.TypeExpression;
import org.apache.uima.ruta.rule.RuleElement;
import org.apache.uima.ruta.rule.RuleElementMatch;
import org.apache.uima.ruta.rule.RuleMatch;
import org.apache.uima.ruta.type.RutaFrame;
import org.apache.uima.ruta.utils.UIMAUtils;
import org.apache.uima.ruta.visitor.InferenceCrowd;
public class GatherAction extends AbstractStructureAction {
private TypeExpression structureType;
private Map<StringExpression, RutaExpression> features;
private List<NumberExpression> indexes;
public GatherAction(TypeExpression structureType,
Map<StringExpression, RutaExpression> features, List<NumberExpression> indexes) {
super();
this.structureType = structureType;
this.features = features == null ? new HashMap<StringExpression, RutaExpression>()
: features;
this.indexes = (indexes == null || indexes.isEmpty()) ? null : indexes;
}
@Override
public void execute(RuleMatch match, RuleElement element, RutaStream stream,
InferenceCrowd crowd) {
List<Integer> indexList = getIndexList(match, element);
List<AnnotationFS> matchedAnnotations = match.getMatchedAnnotations(stream, indexList,
element.getContainer());
for (AnnotationFS matchedAnnotation : matchedAnnotations) {
if (matchedAnnotation == null) {
return;
}
Type type = structureType.getType(element.getParent());
FeatureStructure newFS = stream.getCas().createFS(type);
if (newFS instanceof Annotation) {
Annotation a = (Annotation) newFS;
a.setBegin(matchedAnnotation.getBegin());
a.setEnd(matchedAnnotation.getEnd());
stream.addAnnotation(a, match);
}
TOP newStructure = null;
if (newFS instanceof TOP) {
newStructure = (TOP) newFS;
gatherFeatures(newStructure, features, matchedAnnotation, element, match, stream);
newStructure.addToIndexes();
}
}
}
private void gatherFeatures(TOP structure, Map<StringExpression, RutaExpression> features,
AnnotationFS matchedAnnotation, RuleElement element, RuleMatch match,
RutaStream stream) {
Map<String, List<Number>> map = new HashMap<String, List<Number>>();
for (Entry<StringExpression, RutaExpression> each : features.entrySet()) {
String value = each.getKey().getStringValue(element.getParent());
RutaExpression expr = each.getValue();
List<Number> ints = new ArrayList<Number>();
if (expr instanceof NumberExpression) {
NumberExpression ne = (NumberExpression) expr;
ints.add(ne.getIntegerValue(element.getParent()));
map.put(value, ints);
} else if (expr instanceof NumberListExpression) {
NumberListExpression ne = (NumberListExpression) expr;
map.put(value, ne.getList(element.getParent()));
}
}
TypeSystem typeSystem = stream.getCas().getTypeSystem();
JCas jcas = stream.getJCas();
List<?> featuresList = structure.getType().getFeatures();
for (int i = 0; i < featuresList.size(); i++) {
Feature targetFeature = (Feature) featuresList.get(i);
String name = targetFeature.getName();
String shortFName = name.substring(name.indexOf(":") + 1, name.length());
List<Number> reIndexes = map.get(shortFName);
if (reIndexes != null && !reIndexes.isEmpty()) {
Type range = targetFeature.getRange();
List<RuleElementMatch> tms = getMatchInfo(match, element, reIndexes);
if (tms.size() == 0) {// do nothing
} else if (tms.size() == 1) {
RuleElementMatch tm = tms.get(0);
List<AnnotationFS> textsMatched = tm.getTextsMatched();
if (textsMatched.size() == 1) {
AnnotationFS fs = textsMatched.get(0);
if (typeSystem.subsumes(jcas.getCasType(FSArray.type), range)) {
List<AnnotationFS> list = new ArrayList<AnnotationFS>();
list.add(fs);
structure.setFeatureValue(targetFeature, UIMAUtils.toFSArray(jcas, list));
} else if (typeSystem.subsumes(range, fs.getType())) {
structure.setFeatureValue(targetFeature, fs);
}
}
} else {
List<AnnotationFS> textsMatched = getMatchedText(tms);
if (typeSystem.subsumes(jcas.getCasType(FSArray.type), range)) {
structure.setFeatureValue(targetFeature, UIMAUtils.toFSArray(jcas, textsMatched));
} else {
int begin = textsMatched.get(0).getBegin();
int end = textsMatched.get(textsMatched.size() - 1).getEnd();
RutaFrame frame = new RutaFrame(jcas, begin, end);
FSIterator<Annotation> iterator = jcas.getAnnotationIndex(range).iterator(frame);
AnnotationFS newA = null;
while (iterator.isValid()) {
Annotation a = iterator.get();
if (a.getBegin() == begin && a.getEnd() == end
&& jcas.getTypeSystem().subsumes(range, a.getType())) {
newA = a;
} else if (a.getBegin() > begin || a.getEnd() < end) {
break;
}
iterator.moveToNext();
}
if (newA == null) {
newA = jcas.getCas().createAnnotation(range, begin, end);
}
structure.setFeatureValue(targetFeature, newA);
}
}
}
}
}
private List<AnnotationFS> getMatchedText(List<RuleElementMatch> tms) {
List<AnnotationFS> result = new ArrayList<AnnotationFS>();
for (RuleElementMatch each : tms) {
result.addAll(each.getTextsMatched());
}
return result;
}
private List<RuleElementMatch> getMatchInfo(RuleMatch match, RuleElement element,
List<Number> reIndexes) {
List<RuleElementMatch> result = new ArrayList<RuleElementMatch>();
List<RuleElement> elements = element.getContainer().getRuleElements();
for (Number eachNumber : reIndexes) {
int eachInt = eachNumber.intValue();
RuleElement ruleElement = elements.get(eachInt - 1);
List<List<RuleElementMatch>> matchInfo = match.getMatchInfo(ruleElement);
for (List<RuleElementMatch> list : matchInfo) {
result.addAll(list);
}
}
return result;
}
// TODO refactor duplicate methods -> MarkAction
protected List<Integer> getIndexList(RuleMatch match, RuleElement element) {
List<Integer> indexList = new ArrayList<Integer>();
if (indexes == null || indexes.isEmpty()) {
int self = element.getContainer().getRuleElements().indexOf(element) + 1;
indexList.add(self);
return indexList;
}
int last = Integer.MAX_VALUE - 1;
for (NumberExpression each : indexes) {
int value = each.getIntegerValue(element.getParent());
for (int i = Math.min(value, last + 1); i < value; i++) {
indexList.add(i);
}
indexList.add(value);
}
return indexList;
}
public TypeExpression getStructureType() {
return structureType;
}
public Map<StringExpression, RutaExpression> getFeatures() {
return features;
}
public List<NumberExpression> getIndexes() {
return indexes;
}
}