| /** |
| * 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.apex.malhar.contrib.redis; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.apache.apex.malhar.lib.testbench.CollectorTestSink; |
| import org.apache.apex.malhar.lib.util.KeyValPair; |
| import org.apache.apex.malhar.lib.wal.FSWindowDataManager; |
| |
| import redis.clients.jedis.ScanParams; |
| |
| import static org.apache.apex.malhar.lib.helper.OperatorContextTestHelper.mockOperatorContext; |
| |
| import com.datatorrent.api.Attribute; |
| import com.datatorrent.api.Context.OperatorContext; |
| import com.datatorrent.api.DAG; |
| import com.datatorrent.api.DefaultInputPort; |
| import com.datatorrent.api.LocalMode; |
| import com.datatorrent.common.util.BaseOperator; |
| |
| public class RedisInputOperatorTest |
| { |
| private RedisStore operatorStore; |
| private RedisStore testStore; |
| |
| public static class CollectorModule extends BaseOperator |
| { |
| static volatile List<KeyValPair<String, String>> resultMap = new ArrayList<KeyValPair<String, String>>(); |
| static long resultCount = 0; |
| |
| public final transient DefaultInputPort<KeyValPair<String, String>> inputPort = new DefaultInputPort<KeyValPair<String, String>>() |
| { |
| @Override |
| public void process(KeyValPair<String, String> tuple) |
| { |
| resultMap.add(tuple); |
| resultCount++; |
| } |
| }; |
| } |
| |
| @Test |
| public void testIntputOperator() throws IOException |
| { |
| this.operatorStore = new RedisStore(); |
| this.testStore = new RedisStore(); |
| |
| testStore.connect(); |
| ScanParams params = new ScanParams(); |
| params.count(1); |
| |
| testStore.put("test_abc", "789"); |
| testStore.put("test_def", "456"); |
| testStore.put("test_ghi", "123"); |
| |
| try { |
| LocalMode lma = LocalMode.newInstance(); |
| DAG dag = lma.getDAG(); |
| |
| RedisKeyValueInputOperator inputOperator = dag.addOperator("input", new RedisKeyValueInputOperator()); |
| final CollectorModule collector = dag.addOperator("collector", new CollectorModule()); |
| |
| inputOperator.setStore(operatorStore); |
| dag.addStream("stream", inputOperator.outputPort, collector.inputPort); |
| final LocalMode.Controller lc = lma.getController(); |
| |
| new Thread("LocalClusterController") |
| { |
| @Override |
| public void run() |
| { |
| long startTms = System.currentTimeMillis(); |
| long timeout = 50000L; |
| try { |
| Thread.sleep(1000); |
| while (System.currentTimeMillis() - startTms < timeout) { |
| if (CollectorModule.resultMap.size() < 3) { |
| Thread.sleep(10); |
| } else { |
| break; |
| } |
| } |
| } catch (InterruptedException ex) { |
| // |
| } |
| lc.shutdown(); |
| } |
| }.start(); |
| |
| lc.run(); |
| |
| Assert.assertTrue(CollectorModule.resultMap.contains(new KeyValPair<String, String>("test_abc", "789"))); |
| Assert.assertTrue(CollectorModule.resultMap.contains(new KeyValPair<String, String>("test_def", "456"))); |
| Assert.assertTrue(CollectorModule.resultMap.contains(new KeyValPair<String, String>("test_ghi", "123"))); |
| } finally { |
| for (KeyValPair<String, String> entry : CollectorModule.resultMap) { |
| testStore.remove(entry.getKey()); |
| } |
| testStore.disconnect(); |
| } |
| } |
| |
| @Test |
| public void testRecoveryAndIdempotency() throws Exception |
| { |
| this.operatorStore = new RedisStore(); |
| this.testStore = new RedisStore(); |
| |
| testStore.connect(); |
| ScanParams params = new ScanParams(); |
| params.count(1); |
| |
| testStore.put("test_abc", "789"); |
| testStore.put("test_def", "456"); |
| testStore.put("test_ghi", "123"); |
| |
| RedisKeyValueInputOperator operator = new RedisKeyValueInputOperator(); |
| operator.setWindowDataManager(new FSWindowDataManager()); |
| |
| operator.setStore(operatorStore); |
| operator.setScanCount(1); |
| Attribute.AttributeMap attributeMap = new Attribute.AttributeMap.DefaultAttributeMap(); |
| CollectorTestSink<Object> sink = new CollectorTestSink<Object>(); |
| |
| operator.outputPort.setSink(sink); |
| OperatorContext context = mockOperatorContext(1, attributeMap); |
| |
| try { |
| operator.setup(context); |
| operator.beginWindow(1); |
| operator.emitTuples(); |
| operator.endWindow(); |
| |
| int numberOfMessagesInWindow1 = sink.collectedTuples.size(); |
| sink.collectedTuples.clear(); |
| |
| operator.beginWindow(2); |
| operator.emitTuples(); |
| operator.endWindow(); |
| int numberOfMessagesInWindow2 = sink.collectedTuples.size(); |
| sink.collectedTuples.clear(); |
| |
| // failure and then re-deployment of operator |
| // Re-instantiating to reset values |
| operator = new RedisKeyValueInputOperator(); |
| operator.setWindowDataManager(new FSWindowDataManager()); |
| operator.setStore(operatorStore); |
| operator.setScanCount(1); |
| operator.outputPort.setSink(sink); |
| operator.setup(context); |
| |
| Assert.assertEquals("largest recovery window", 2, operator.getWindowDataManager().getLargestCompletedWindow()); |
| |
| operator.beginWindow(1); |
| operator.emitTuples(); |
| operator.emitTuples(); |
| operator.endWindow(); |
| |
| Assert.assertEquals("num of messages in window 1", numberOfMessagesInWindow1, sink.collectedTuples.size()); |
| |
| sink.collectedTuples.clear(); |
| operator.beginWindow(2); |
| operator.emitTuples(); |
| operator.endWindow(); |
| Assert.assertEquals("num of messages in window 2",numberOfMessagesInWindow2, sink.collectedTuples.size()); |
| } finally { |
| for (Object e : sink.collectedTuples) { |
| KeyValPair<String, String> entry = (KeyValPair<String, String>)e; |
| testStore.remove(entry.getKey()); |
| } |
| sink.collectedTuples.clear(); |
| operator.getWindowDataManager().committed(5); |
| operator.teardown(); |
| } |
| } |
| } |