| /* |
| * 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)); |
| } |
| } |
| } |