| /* |
| * 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.analysis_engine.impl; |
| |
| import java.util.Set; |
| |
| import org.apache.uima.analysis_engine.AnalysisEngineProcessException; |
| import org.apache.uima.cas.CAS; |
| import org.apache.uima.flow.CasFlowController_ImplBase; |
| import org.apache.uima.flow.CasFlow_ImplBase; |
| import org.apache.uima.flow.FinalStep; |
| import org.apache.uima.flow.Flow; |
| import org.apache.uima.flow.FlowControllerContext; |
| import org.apache.uima.flow.ParallelStep; |
| import org.apache.uima.flow.Step; |
| import org.apache.uima.resource.ResourceInitializationException; |
| |
| /** |
| * FlowController for testing ParallelStep. |
| */ |
| public class ParallelFlowController extends CasFlowController_ImplBase { |
| |
| public void initialize(FlowControllerContext aContext) throws ResourceInitializationException { |
| super.initialize(aContext); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.uima.flow.CasFlowController_ImplBase#computeFlow(org.apache.uima.cas.CAS) |
| */ |
| public Flow computeFlow(CAS aCAS) throws AnalysisEngineProcessException { |
| ParallelFlowObject ffo = new ParallelFlowObject(); |
| ffo.setCas(aCAS); |
| return ffo; |
| } |
| |
| class ParallelFlowObject extends CasFlow_ImplBase { |
| private boolean done = false; |
| |
| /** |
| * Create a new fixed flow starting at step <code>startStep</code> of the fixed sequence. |
| * |
| */ |
| public ParallelFlowObject() { |
| //do nothing |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.apache.uima.flow.Flow#next() |
| */ |
| public Step next() throws AnalysisEngineProcessException { |
| if (!done) { |
| done = true; |
| Set keys = getContext().getAnalysisEngineMetaDataMap().keySet(); |
| return new ParallelStep(keys); |
| } |
| else { |
| return new FinalStep(); |
| } |
| |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.uima.flow.CasFlow_ImplBase#newCasProduced(org.apache.uima.cas.CAS, java.lang.String) |
| */ |
| protected Flow newCasProduced(CAS newCas, String producedBy) throws AnalysisEngineProcessException { |
| //for this test, new segments don't continue in the flow |
| return new EmptyFlow(); |
| } |
| } |
| |
| class EmptyFlow extends CasFlow_ImplBase { |
| public Step next() { |
| return new FinalStep(); |
| } |
| } |
| } |