| package com.yahoo.labs.samoa.topology.impl; |
| |
| /* |
| * #%L |
| * SAMOA |
| * %% |
| * Copyright (C) 2013 - 2014 Yahoo! Inc. |
| * %% |
| * 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% |
| */ |
| |
| import org.apache.samza.SamzaException; |
| import org.apache.samza.config.Config; |
| import org.apache.samza.metrics.MetricsRegistry; |
| import org.apache.samza.system.SystemAdmin; |
| import org.apache.samza.system.SystemConsumer; |
| import org.apache.samza.system.SystemFactory; |
| import org.apache.samza.system.SystemProducer; |
| import org.apache.samza.util.SinglePartitionWithoutOffsetsSystemAdmin; |
| |
| import com.yahoo.labs.samoa.topology.impl.SamzaEntranceProcessingItem.SamoaSystemConsumer; |
| |
| /** |
| * Implementation of Samza's SystemFactory Samza will use this factory to get our custom consumer which gets the events |
| * from SAMOA EntranceProcessor and feed them to EntranceProcessingItem task |
| * |
| * @author Anh Thu Vu |
| */ |
| public class SamoaSystemFactory implements SystemFactory { |
| @Override |
| public SystemAdmin getAdmin(String systemName, Config config) { |
| return new SinglePartitionWithoutOffsetsSystemAdmin(); |
| } |
| |
| @Override |
| public SystemConsumer getConsumer(String systemName, Config config, MetricsRegistry registry) { |
| return new SamoaSystemConsumer(systemName, config); |
| } |
| |
| @Override |
| public SystemProducer getProducer(String systemName, Config config, MetricsRegistry registry) { |
| throw new SamzaException("This implementation is not supposed to produce anything."); |
| } |
| } |