/* * 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.task; import java.util.Map; import org.apache.samza.system.IncomingMessageEnvelope; import org.apache.samza.system.OutgoingMessageEnvelope; import org.apache.samza.system.SystemStream; import org.apache.samza.task.MessageCollector; import org.apache.samza.task.StreamTask; import org.apache.samza.task.TaskCoordinator; import samza.examples.wikipedia.model.WikipediaParser; import samza.examples.wikipedia.system.WikipediaFeed.WikipediaFeedEvent; public class WikipediaParserStreamTask implements StreamTask { private static final SystemStream OUTPUT_STREAM = new SystemStream("kafka", "wikipedia-edits"); @SuppressWarnings("unchecked") @Override public void process(IncomingMessageEnvelope envelope, MessageCollector collector, TaskCoordinator coordinator) { Map<String, Object> jsonObject = (Map<String, Object>) envelope.getMessage(); WikipediaFeedEvent event = new WikipediaFeedEvent(jsonObject); Map<String, Object> parsedJsonObject = WikipediaParser.parseEvent(event); if (parsedJsonObject != null) { collector.send(new OutgoingMessageEnvelope(OUTPUT_STREAM, parsedJsonObject)); } } public static void main(String[] args) { String[] lines = new String[] { "[[Wikipedia talk:Articles for creation/Lords of War]] http://en.wikipedia.org/w/index.php?diff=562991653&oldid=562991567 * BBGLordsofWar * (+95) /* Lords of War: Elves versus Lizardmen */]", "[[David Shepard (surgeon)]] M http://en.wikipedia.org/w/index.php?diff=562993463&oldid=562989820 * Jacobsievers * (+115) /* American Revolution (1775�1783) */ Added to note regarding David Shepard's brothers" }; for (String line : lines) { System.out.println(WikipediaParser.parseLine(line)); } } }