| /* |
| * 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.block; |
| |
| import java.util.List; |
| |
| import org.apache.uima.UimaContext; |
| import org.apache.uima.cas.Type; |
| import org.apache.uima.cas.text.AnnotationFS; |
| import org.apache.uima.ruta.BlockApply; |
| import org.apache.uima.ruta.RutaBlock; |
| import org.apache.uima.ruta.RutaStatement; |
| import org.apache.uima.ruta.RutaStream; |
| import org.apache.uima.ruta.ScriptApply; |
| import org.apache.uima.ruta.rule.AbstractRule; |
| import org.apache.uima.ruta.rule.AbstractRuleMatch; |
| import org.apache.uima.ruta.rule.RuleApply; |
| import org.apache.uima.ruta.rule.RuleMatch; |
| import org.apache.uima.ruta.rule.RutaRuleElement; |
| import org.apache.uima.ruta.visitor.InferenceCrowd; |
| |
| /** |
| * A block construct in UIMA Ruta, which stops applying its elements after the first successful |
| * statement |
| * |
| */ |
| public class OnlyFirstBlock extends RutaBlock { |
| |
| public OnlyFirstBlock(RutaBlock parent, String defaultNamespace) { |
| super(parent, defaultNamespace, parent != null ? parent.getContext() : null); |
| } |
| |
| @Override |
| public ScriptApply apply(RutaStream stream, InferenceCrowd crowd) { |
| BlockApply result = new BlockApply(this); |
| crowd.beginVisit(this, result); |
| RuleApply apply = rule.apply(stream, crowd, true); |
| for (AbstractRuleMatch<? extends AbstractRule> eachMatch : apply.getList()) { |
| if (eachMatch.matched()) { |
| List<AnnotationFS> matchedAnnotations = ((RuleMatch) eachMatch).getMatchedAnnotations(null, |
| null); |
| if (matchedAnnotations == null || matchedAnnotations.isEmpty()) { |
| continue; |
| } |
| AnnotationFS each = matchedAnnotations.get(0); |
| if (each == null) { |
| continue; |
| } |
| boolean stop = false; |
| List<Type> types = ((RutaRuleElement) rule.getRuleElements().get(0)).getMatcher().getTypes( |
| getParent() == null ? this : getParent(), stream); |
| for (Type eachType : types) { |
| RutaStream window = stream.getWindowStream(each, eachType); |
| for (RutaStatement element : getElements()) { |
| if (stop) |
| break; |
| if (element != null) { |
| ScriptApply elementApply = element.apply(window, crowd); |
| if (elementApply instanceof BlockApply) { |
| BlockApply ba = (BlockApply) elementApply; |
| if (ba.getRuleApply().getApplied() > 0) { |
| stop = true; |
| } |
| } else if (elementApply instanceof RuleApply) { |
| RuleApply ra = (RuleApply) elementApply; |
| if (ra.getApplied() > 0) { |
| stop = true; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| crowd.endVisit(this, result); |
| return result; |
| } |
| |
| } |