Java tutorial
/** * 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 com.datatorrent.lib.appdata.query; import org.junit.Assert; import org.junit.Test; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.apache.commons.lang3.mutable.MutableBoolean; import com.google.common.base.Preconditions; import com.datatorrent.lib.appdata.ThreadUtils.ExceptionSaverExceptionHandler; import com.datatorrent.lib.appdata.schemas.Query; public class SimpleDoneQueryQueueManagerTest { @Test public void firstDoneTest() { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(true)); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.beginWindow(1); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleEnqueueDequeueBlock() { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(false)); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeueBlock(); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); Assert.assertEquals("Should return same query.", query, qb.getQuery()); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleBlockingTest() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); testBlocking(sdqqm); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleEnqueueDequeue() { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(false)); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeue(); Assert.assertEquals("Should return same query.", query, qb.getQuery()); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.beginWindow(1); qb = sdqqm.dequeue(); Assert.assertEquals("Should return same query.", query, qb.getQuery()); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleEnqueueDequeueThenBlock() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(false)); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeueBlock(); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); testBlocking(sdqqm); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleExpire1() { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(false)); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeue(); Assert.assertEquals("Should return same query.", query, qb.getQuery()); qb.getQueueContext().setValue(true); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.beginWindow(1); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void resetPermitsTest() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(false)); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeueBlock(); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); sdqqm.endWindow(); sdqqm.beginWindow(1); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); qb = sdqqm.dequeueBlock(); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); testBlocking(sdqqm); sdqqm.endWindow(); } @Test public void expiredTestBlocking() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); MutableBoolean queueContext = new MutableBoolean(false); sdqqm.enqueue(query, null, queueContext); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeueBlock(); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); sdqqm.endWindow(); sdqqm.beginWindow(1); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); queueContext.setValue(true); testBlocking(sdqqm); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void expiredTestBlockingExpiredFirstValidLast() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); MutableBoolean queueContext = new MutableBoolean(false); sdqqm.enqueue(query, null, queueContext); Query query1 = new MockQuery("2"); MutableBoolean queueContext1 = new MutableBoolean(false); sdqqm.enqueue(query1, null, queueContext1); Assert.assertEquals(2, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeueBlock(); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); sdqqm.endWindow(); sdqqm.beginWindow(1); Assert.assertEquals(2, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); queueContext.setValue(true); qb = sdqqm.dequeueBlock(); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); testBlocking(sdqqm); sdqqm.endWindow(); sdqqm.beginWindow(2); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); qb = sdqqm.dequeueBlock(); testBlocking(sdqqm); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void expiredTestBlockingValidFirstExpiredLast() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); MutableBoolean queueContext = new MutableBoolean(false); sdqqm.enqueue(query, null, queueContext); Query query1 = new MockQuery("2"); MutableBoolean queueContext1 = new MutableBoolean(false); sdqqm.enqueue(query1, null, queueContext1); Assert.assertEquals(2, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeueBlock(); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); sdqqm.endWindow(); sdqqm.beginWindow(1); Assert.assertEquals(2, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); queueContext1.setValue(true); qb = sdqqm.dequeueBlock(); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); testBlocking(sdqqm); Assert.assertEquals(0, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); sdqqm.endWindow(); sdqqm.beginWindow(2); Assert.assertEquals(1, sdqqm.getNumLeft()); Assert.assertEquals(sdqqm.getNumPermits(), sdqqm.getNumLeft()); qb = sdqqm.dequeueBlock(); testBlocking(sdqqm); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleExpire1ThenBlock() { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); sdqqm.enqueue(query, null, new MutableBoolean(false)); QueryBundle<Query, Void, MutableBoolean> qb = sdqqm.dequeue(); Assert.assertEquals("Should return same query.", query, qb.getQuery()); qb.getQueueContext().setValue(true); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.beginWindow(1); qb = sdqqm.dequeue(); Assert.assertEquals("Should return back null.", null, qb); sdqqm.endWindow(); sdqqm.teardown(); } @Test public void simpleExpireBlockThenUnblock() throws Exception { SimpleDoneQueueManager<Query, Void> sdqqm = new SimpleDoneQueueManager<Query, Void>(); sdqqm.setup(null); sdqqm.beginWindow(0); Query query = new MockQuery("1"); MutableBoolean expire = new MutableBoolean(false); sdqqm.enqueue(query, null, expire); sdqqm.endWindow(); sdqqm.beginWindow(1); //Expire expire.setValue(true); ExceptionSaverExceptionHandler eseh = new ExceptionSaverExceptionHandler(); testBlockingNoStop(sdqqm, eseh); query = new MockQuery("2"); sdqqm.enqueue(query, null, new MutableBoolean(false)); Thread.sleep(1000); Assert.assertNull(eseh.getCaughtThrowable()); sdqqm.endWindow(); sdqqm.teardown(); } @SuppressWarnings({ "deprecation", "CallToThreadStopSuspendOrResumeManager" }) private void testBlocking(SimpleDoneQueueManager<Query, Void> sdqqm) throws InterruptedException { Thread thread = new Thread(new BlockedThread<Query, Void, MutableBoolean>(sdqqm)); //thread.setUncaughtExceptionHandler(new RethrowExceptionHandler(Thread.currentThread())); thread.start(); Thread.sleep(100); Assert.assertEquals(Thread.State.WAITING, thread.getState()); thread.stop(); } private Thread testBlockingNoStop(SimpleDoneQueueManager<Query, Void> sdqqm, ExceptionSaverExceptionHandler eseh) throws InterruptedException { Thread thread = new Thread(new BlockedThread<>(sdqqm)); thread.setUncaughtExceptionHandler(eseh); thread.start(); Thread.sleep(100); Assert.assertEquals(Thread.State.WAITING, thread.getState()); return thread; } public static class BlockedThread<QUERY_TYPE, META_QUERY, QUEUE_CONTEXT> implements Runnable { QueueManager<QUERY_TYPE, META_QUERY, QUEUE_CONTEXT> queueManager; public BlockedThread(QueueManager<QUERY_TYPE, META_QUERY, QUEUE_CONTEXT> queueManager) { setQueueManager(queueManager); } private void setQueueManager(QueueManager<QUERY_TYPE, META_QUERY, QUEUE_CONTEXT> queueManager) { this.queueManager = Preconditions.checkNotNull(queueManager); } @Override public void run() { LOG.debug("{}", queueManager.dequeueBlock()); } } private static final Logger LOG = LoggerFactory.getLogger(SimpleDoneQueryQueueManagerTest.class); }