/* * 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 samza.examples.wikipedia.system; 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; public class WikipediaSystemFactory implements SystemFactory { @Override public SystemAdmin getAdmin(String systemName, Config config) { return new SinglePartitionWithoutOffsetsSystemAdmin(); } @Override public SystemConsumer getConsumer(String systemName, Config config, MetricsRegistry registry) { String host = config.get("systems." + systemName + ".host"); int port = config.getInt("systems." + systemName + ".port"); WikipediaFeed feed = new WikipediaFeed(host, port); return new WikipediaConsumer(systemName, feed, registry); } @Override public SystemProducer getProducer(String systemName, Config config, MetricsRegistry registry) { throw new SamzaException("You can't produce to a Wikipedia feed! How about making some edits to a Wiki, instead?"); } }