| /* |
| * 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.samoa.learners.clusterers.simple; |
| |
| 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) { |
| } |
| } |