| package org.apache.samoa.learners.clusterers.simple; |
| |
| /* |
| * #%L |
| * SAMOA |
| * %% |
| * Copyright (C) 2014 - 2015 Apache Software Foundation |
| * %% |
| * Licensed 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. |
| * #L% |
| */ |
| /** |
| * License |
| */ |
| import org.apache.samoa.core.ContentEvent; |
| import org.apache.samoa.core.Processor; |
| import org.apache.samoa.evaluation.ClusteringEvaluationContentEvent; |
| import org.apache.samoa.learners.clusterers.ClusteringContentEvent; |
| import org.apache.samoa.moa.core.DataPoint; |
| import org.apache.samoa.topology.Stream; |
| |
| /** |
| * The Class ClusteringDistributorPE. |
| */ |
| public class ClusteringDistributorProcessor implements Processor { |
| |
| private static final long serialVersionUID = -1550901409625192730L; |
| |
| private Stream outputStream; |
| private Stream evaluationStream; |
| private int numInstances; |
| |
| public Stream getOutputStream() { |
| return outputStream; |
| } |
| |
| public void setOutputStream(Stream outputStream) { |
| this.outputStream = outputStream; |
| } |
| |
| public Stream getEvaluationStream() { |
| return evaluationStream; |
| } |
| |
| public void setEvaluationStream(Stream evaluationStream) { |
| this.evaluationStream = evaluationStream; |
| } |
| |
| /** |
| * Process event. |
| * |
| * @param event |
| * the event |
| * @return true, if successful |
| */ |
| public boolean process(ContentEvent event) { |
| // distinguish between ClusteringContentEvent and |
| // ClusteringEvaluationContentEvent |
| if (event instanceof ClusteringContentEvent) { |
| ClusteringContentEvent cce = (ClusteringContentEvent) event; |
| outputStream.put(event); |
| if (cce.isSample()) { |
| evaluationStream.put(new ClusteringEvaluationContentEvent(null, |
| new DataPoint(cce.getInstance(), numInstances++), cce.isLastEvent())); |
| } |
| } else if (event instanceof ClusteringEvaluationContentEvent) { |
| evaluationStream.put(event); |
| } |
| return true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see samoa.core.Processor#newProcessor(samoa.core.Processor) |
| */ |
| @Override |
| public Processor newProcessor(Processor sourceProcessor) { |
| ClusteringDistributorProcessor newProcessor = new ClusteringDistributorProcessor(); |
| ClusteringDistributorProcessor originProcessor = (ClusteringDistributorProcessor) sourceProcessor; |
| if (originProcessor.getOutputStream() != null) |
| newProcessor.setOutputStream(originProcessor.getOutputStream()); |
| if (originProcessor.getEvaluationStream() != null) |
| newProcessor.setEvaluationStream(originProcessor.getEvaluationStream()); |
| return newProcessor; |
| } |
| |
| public void onCreate(int id) { |
| } |
| } |