geode-core/src/integrationTest/java/org/apache/geode/internal/statistics/ValueMonitorIntegrationTest.java - geode - Git at Google

 /*
  * 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.geode.internal.statistics;

 import static org.apache.geode.test.awaitility.GeodeAwaitility.await;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;

 import java.io.File;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;

 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.junit.rules.TestName;

 import org.apache.geode.StatisticDescriptor;
 import org.apache.geode.Statistics;
 import org.apache.geode.StatisticsType;
 import org.apache.geode.internal.NanoTimer;
 import org.apache.geode.internal.io.MainWithChildrenRollingFileHandler;
 import org.apache.geode.internal.statistics.StatisticsNotification.Type;
 import org.apache.geode.test.junit.categories.StatisticsTest;

 /**
  * Integration test for the SampleCollector class.
  *
  * @since GemFire 7.0
  */
 @Category(StatisticsTest.class)
 public class ValueMonitorIntegrationTest {
   private StatArchiveHandlerConfig mockStatArchiveHandlerConfig;

   @Rule
   public TestName testName = new TestName();

   @Before
   public void setUp() {
     mockStatArchiveHandlerConfig = mock(StatArchiveHandlerConfig.class,
         testName.getMethodName() + "$StatArchiveHandlerConfig");
     when(mockStatArchiveHandlerConfig.getArchiveFileName()).thenReturn(new File(""));
     when(mockStatArchiveHandlerConfig.getArchiveFileSizeLimit()).thenReturn(0L);
     when(mockStatArchiveHandlerConfig.getArchiveDiskSpaceLimit()).thenReturn(0L);
     when(mockStatArchiveHandlerConfig.getSystemId()).thenReturn(1L);
     when(mockStatArchiveHandlerConfig.getSystemDirectoryPath()).thenReturn("");
     when(mockStatArchiveHandlerConfig.getProductDescription()).thenReturn("Geode");
   }

   private StatisticsNotification createStatisticsNotification(final long timeStamp, final Type type,
       final Number value) {
     return new StatisticsNotification() {

       @Override
       public long getTimeStamp() {
         return timeStamp;
       }

       @Override
       public Type getType() {
         return type;
       }

       @Override
       public Iterator<StatisticId> iterator() {
         return null;
       }

       @Override
       public Iterator<StatisticId> iterator(final StatisticDescriptor statDesc) {
         return null;
       }

       @Override
       public Iterator<StatisticId> iterator(final Statistics statistics) {
         return null;
       }

       @Override
       public Iterator<StatisticId> iterator(final StatisticsType statisticsType) {
         return null;
       }

       @Override
       public Number getValue(final StatisticId statId) {
         return value;
       }
     };
   }

   @Test
   public void testAddRemoveListener() throws Exception {
     long startTime = System.currentTimeMillis();
     StatisticsManager mockStatisticsManager =
         mock(StatisticsManager.class, testName.getMethodName() + "$StatisticsManager");
     when(mockStatisticsManager.getName()).thenReturn("mockStatisticsManager");
     when(mockStatisticsManager.getStartTime()).thenReturn(startTime);
     when(mockStatisticsManager.getStatListModCount()).thenReturn(0);
     when(mockStatisticsManager.getStatsList()).thenReturn(new ArrayList<>());

     StatisticsSampler mockStatisticsSampler =
         mock(StatisticsSampler.class, testName.getMethodName() + "$StatisticsSampler");
     when(mockStatisticsSampler.getStatisticsModCount()).thenReturn(0);
     when(mockStatisticsSampler.getStatistics()).thenReturn(new Statistics[] {});

     // need a real SampleCollector for this test or the monitor can't get the handler
     SampleCollector sampleCollector = new SampleCollector(mockStatisticsSampler);
     sampleCollector.initialize(mockStatArchiveHandlerConfig, NanoTimer.getTime(),
         new MainWithChildrenRollingFileHandler());

     List<StatisticsNotification> notifications = new ArrayList<>();
     StatisticsListener listener = notifications::add;

     ValueMonitor monitor = new ValueMonitor();
     Number value = 43;
     Type type = Type.VALUE_CHANGED;
     long timeStamp = System.currentTimeMillis();
     StatisticsNotification notification = createStatisticsNotification(timeStamp, type, value);
     monitor.notifyListeners(notification);
     assertThat(notifications.isEmpty()).isTrue();

     monitor.addListener(listener);
     monitor.notifyListeners(notification);
     assertThat(notifications.size()).isEqualTo(1);
     notification = notifications.remove(0);
     assertThat(notification).isNotNull();
     assertThat(notification.getTimeStamp()).isEqualTo(timeStamp);
     assertThat(notification.getType()).isEqualTo(type);
     StatisticId statId = mock(StatisticId.class);
     assertThat(notification.getValue(statId)).isEqualTo(value);

     monitor.removeListener(listener);
     monitor.notifyListeners(notification);
     assertThat(notifications.isEmpty()).isTrue();
   }

   private int assertStatisticsNotification(StatisticsNotification notification,
       Map<String, Number> expectedValues) throws StatisticNotFoundException {
     int statCount = 0;
     for (StatisticId statId : notification) {
       Number value = expectedValues.remove(statId.getStatisticDescriptor().getName());
       assertThat(value).isNotNull();
       assertThat(notification.getValue(statId)).isEqualTo(value);
       statCount++;
     }

     return statCount;
   }

   @Test
   public void testValueMonitorListener() throws Exception {
     long startTime = System.currentTimeMillis();
     TestStatisticsManager manager =
         new TestStatisticsManager(1, "ValueMonitorIntegrationTest", startTime);
     StatisticsSampler sampler = new TestStatisticsSampler(manager);
     SampleCollector sampleCollector = new SampleCollector(sampler);
     sampleCollector.initialize(mockStatArchiveHandlerConfig, NanoTimer.getTime(),
         new MainWithChildrenRollingFileHandler());

     StatisticDescriptor[] statsST1 = new StatisticDescriptor[] {
         manager.createDoubleCounter("double_counter_1", "double_counter_1_desc",
             "double_counter_1_units"),
         manager.createIntCounter("int_counter_2", "int_counter_2_desc", "int_counter_2_units"),
         manager.createLongCounter("long_counter_3", "long_counter_3_desc", "long_counter_3_units")};
     StatisticsType ST1 = manager.createType("ST1_name", "ST1_desc", statsST1);

     Statistics st1_1 = manager.createAtomicStatistics(ST1, "st1_1_text", 1);
     st1_1.incDouble("double_counter_1", 1000.0001);
     st1_1.incInt("int_counter_2", 2);
     st1_1.incLong("long_counter_3", 3333333333L);

     Statistics st1_2 = manager.createAtomicStatistics(ST1, "st1_2_text", 2);
     st1_2.incDouble("double_counter_1", 2000.0002);
     st1_2.incInt("int_counter_2", 3);
     st1_2.incLong("long_counter_3", 4444444444L);

     List<StatisticsNotification> notifications = new ArrayList<>();
     StatisticsListener listener = notifications::add;

     ValueMonitor monitor = new ValueMonitor().addStatistics(st1_1);
     monitor.addListener(listener);
     assertThat(notifications.isEmpty()).isTrue();

     long timeStamp = NanoTimer.getTime();
     sampleCollector.sample(timeStamp);
     await()
         .until(() -> notifications.size() > 0);
     assertThat(notifications.size()).isEqualTo(1);

     StatisticsNotification notification = notifications.remove(0);
     assertThat(notification.getType()).isEqualTo(StatisticsNotification.Type.VALUE_CHANGED);

     // validate 1 notification occurs with all 3 stats of st1_1
     st1_1.incDouble("double_counter_1", 1.1);
     st1_1.incInt("int_counter_2", 2);
     st1_1.incLong("long_counter_3", 3);
     timeStamp += NanoTimer.millisToNanos(1000);
     sampleCollector.sample(timeStamp);
     await()
         .until(() -> notifications.size() > 0);
     assertThat(notifications.size()).isEqualTo(1);
     notification = notifications.remove(0);
     assertThat(notification.getType()).isEqualTo(StatisticsNotification.Type.VALUE_CHANGED);

     Map<String, Number> expectedValues = new HashMap<>();
     expectedValues.put("double_counter_1", 1001.1001);
     expectedValues.put("int_counter_2", 4L);
     expectedValues.put("long_counter_3", 3333333336L);
     int statCount = assertStatisticsNotification(notification, expectedValues);
     assertThat(statCount).isEqualTo(3);

     // validate no notification occurs when no stats are updated
     timeStamp += NanoTimer.millisToNanos(1000);
     sampleCollector.sample(timeStamp);
     await()
         .until(() -> notifications.size() == 0);
     assertThat(notifications.isEmpty()).isTrue();

     // validate no notification occurs when only other stats are updated
     st1_2.incDouble("double_counter_1", 3.3);
     st1_2.incInt("int_counter_2", 1);
     st1_2.incLong("long_counter_3", 2);
     timeStamp += NanoTimer.millisToNanos(1000);
     sampleCollector.sample(timeStamp);
     await()
         .until(() -> notifications.size() == 0);
     assertThat(notifications.isEmpty()).isTrue();

     // validate notification only contains stats added to monitor
     st1_1.incInt("int_counter_2", 100);
     st1_2.incInt("int_counter_2", 200);
     timeStamp += NanoTimer.millisToNanos(1000);
     sampleCollector.sample(timeStamp);
     await()
         .until(() -> notifications.size() > 0);
     assertThat(notifications.size()).isEqualTo(1);
     notification = notifications.remove(0);
     assertThat(notification.getType()).isEqualTo(StatisticsNotification.Type.VALUE_CHANGED);
     expectedValues = new HashMap<>();
     expectedValues.put("int_counter_2", 104L);
     statCount = assertStatisticsNotification(notification, expectedValues);
     assertThat(statCount).isEqualTo(1);
   }
 }
	/*
	* 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.geode.internal.statistics;

	import static org.apache.geode.test.awaitility.GeodeAwaitility.await;
	import static org.assertj.core.api.Assertions.assertThat;
	import static org.mockito.Mockito.mock;
	import static org.mockito.Mockito.when;

	import java.io.File;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;

	import org.junit.Before;
	import org.junit.Rule;
	import org.junit.Test;
	import org.junit.experimental.categories.Category;
	import org.junit.rules.TestName;

	import org.apache.geode.StatisticDescriptor;
	import org.apache.geode.Statistics;
	import org.apache.geode.StatisticsType;
	import org.apache.geode.internal.NanoTimer;
	import org.apache.geode.internal.io.MainWithChildrenRollingFileHandler;
	import org.apache.geode.internal.statistics.StatisticsNotification.Type;
	import org.apache.geode.test.junit.categories.StatisticsTest;

	/**
	* Integration test for the SampleCollector class.
	*
	* @since GemFire 7.0
	*/
	@Category(StatisticsTest.class)
	public class ValueMonitorIntegrationTest {
	private StatArchiveHandlerConfig mockStatArchiveHandlerConfig;

	@Rule
	public TestName testName = new TestName();

	@Before
	public void setUp() {
	mockStatArchiveHandlerConfig = mock(StatArchiveHandlerConfig.class,
	testName.getMethodName() + "$StatArchiveHandlerConfig");
	when(mockStatArchiveHandlerConfig.getArchiveFileName()).thenReturn(new File(""));
	when(mockStatArchiveHandlerConfig.getArchiveFileSizeLimit()).thenReturn(0L);
	when(mockStatArchiveHandlerConfig.getArchiveDiskSpaceLimit()).thenReturn(0L);
	when(mockStatArchiveHandlerConfig.getSystemId()).thenReturn(1L);
	when(mockStatArchiveHandlerConfig.getSystemDirectoryPath()).thenReturn("");
	when(mockStatArchiveHandlerConfig.getProductDescription()).thenReturn("Geode");
	}

	private StatisticsNotification createStatisticsNotification(final long timeStamp, final Type type,
	final Number value) {
	return new StatisticsNotification() {

	@Override
	public long getTimeStamp() {
	return timeStamp;
	}

	@Override
	public Type getType() {
	return type;
	}

	@Override
	public Iterator<StatisticId> iterator() {
	return null;
	}

	@Override
	public Iterator<StatisticId> iterator(final StatisticDescriptor statDesc) {
	return null;
	}

	@Override
	public Iterator<StatisticId> iterator(final Statistics statistics) {
	return null;
	}

	@Override
	public Iterator<StatisticId> iterator(final StatisticsType statisticsType) {
	return null;
	}

	@Override
	public Number getValue(final StatisticId statId) {
	return value;
	}
	};
	}

	@Test
	public void testAddRemoveListener() throws Exception {
	long startTime = System.currentTimeMillis();
	StatisticsManager mockStatisticsManager =
	mock(StatisticsManager.class, testName.getMethodName() + "$StatisticsManager");
	when(mockStatisticsManager.getName()).thenReturn("mockStatisticsManager");
	when(mockStatisticsManager.getStartTime()).thenReturn(startTime);
	when(mockStatisticsManager.getStatListModCount()).thenReturn(0);
	when(mockStatisticsManager.getStatsList()).thenReturn(new ArrayList<>());

	StatisticsSampler mockStatisticsSampler =
	mock(StatisticsSampler.class, testName.getMethodName() + "$StatisticsSampler");
	when(mockStatisticsSampler.getStatisticsModCount()).thenReturn(0);
	when(mockStatisticsSampler.getStatistics()).thenReturn(new Statistics[] {});

	// need a real SampleCollector for this test or the monitor can't get the handler
	SampleCollector sampleCollector = new SampleCollector(mockStatisticsSampler);
	sampleCollector.initialize(mockStatArchiveHandlerConfig, NanoTimer.getTime(),
	new MainWithChildrenRollingFileHandler());

	List<StatisticsNotification> notifications = new ArrayList<>();
	StatisticsListener listener = notifications::add;

	ValueMonitor monitor = new ValueMonitor();
	Number value = 43;
	Type type = Type.VALUE_CHANGED;
	long timeStamp = System.currentTimeMillis();
	StatisticsNotification notification = createStatisticsNotification(timeStamp, type, value);
	monitor.notifyListeners(notification);
	assertThat(notifications.isEmpty()).isTrue();

	monitor.addListener(listener);
	monitor.notifyListeners(notification);
	assertThat(notifications.size()).isEqualTo(1);
	notification = notifications.remove(0);
	assertThat(notification).isNotNull();
	assertThat(notification.getTimeStamp()).isEqualTo(timeStamp);
	assertThat(notification.getType()).isEqualTo(type);
	StatisticId statId = mock(StatisticId.class);
	assertThat(notification.getValue(statId)).isEqualTo(value);

	monitor.removeListener(listener);
	monitor.notifyListeners(notification);
	assertThat(notifications.isEmpty()).isTrue();
	}

	private int assertStatisticsNotification(StatisticsNotification notification,
	Map<String, Number> expectedValues) throws StatisticNotFoundException {
	int statCount = 0;
	for (StatisticId statId : notification) {
	Number value = expectedValues.remove(statId.getStatisticDescriptor().getName());
	assertThat(value).isNotNull();
	assertThat(notification.getValue(statId)).isEqualTo(value);
	statCount++;
	}

	return statCount;
	}

	@Test
	public void testValueMonitorListener() throws Exception {
	long startTime = System.currentTimeMillis();
	TestStatisticsManager manager =
	new TestStatisticsManager(1, "ValueMonitorIntegrationTest", startTime);
	StatisticsSampler sampler = new TestStatisticsSampler(manager);
	SampleCollector sampleCollector = new SampleCollector(sampler);
	sampleCollector.initialize(mockStatArchiveHandlerConfig, NanoTimer.getTime(),
	new MainWithChildrenRollingFileHandler());

	StatisticDescriptor[] statsST1 = new StatisticDescriptor[] {
	manager.createDoubleCounter("double_counter_1", "double_counter_1_desc",
	"double_counter_1_units"),
	manager.createIntCounter("int_counter_2", "int_counter_2_desc", "int_counter_2_units"),
	manager.createLongCounter("long_counter_3", "long_counter_3_desc", "long_counter_3_units")};
	StatisticsType ST1 = manager.createType("ST1_name", "ST1_desc", statsST1);

	Statistics st1_1 = manager.createAtomicStatistics(ST1, "st1_1_text", 1);
	st1_1.incDouble("double_counter_1", 1000.0001);
	st1_1.incInt("int_counter_2", 2);
	st1_1.incLong("long_counter_3", 3333333333L);

	Statistics st1_2 = manager.createAtomicStatistics(ST1, "st1_2_text", 2);
	st1_2.incDouble("double_counter_1", 2000.0002);
	st1_2.incInt("int_counter_2", 3);
	st1_2.incLong("long_counter_3", 4444444444L);

	List<StatisticsNotification> notifications = new ArrayList<>();
	StatisticsListener listener = notifications::add;

	ValueMonitor monitor = new ValueMonitor().addStatistics(st1_1);
	monitor.addListener(listener);
	assertThat(notifications.isEmpty()).isTrue();

	long timeStamp = NanoTimer.getTime();
	sampleCollector.sample(timeStamp);
	await()
	.until(() -> notifications.size() > 0);
	assertThat(notifications.size()).isEqualTo(1);

	StatisticsNotification notification = notifications.remove(0);
	assertThat(notification.getType()).isEqualTo(StatisticsNotification.Type.VALUE_CHANGED);

	// validate 1 notification occurs with all 3 stats of st1_1
	st1_1.incDouble("double_counter_1", 1.1);
	st1_1.incInt("int_counter_2", 2);
	st1_1.incLong("long_counter_3", 3);
	timeStamp += NanoTimer.millisToNanos(1000);
	sampleCollector.sample(timeStamp);
	await()
	.until(() -> notifications.size() > 0);
	assertThat(notifications.size()).isEqualTo(1);
	notification = notifications.remove(0);
	assertThat(notification.getType()).isEqualTo(StatisticsNotification.Type.VALUE_CHANGED);

	Map<String, Number> expectedValues = new HashMap<>();
	expectedValues.put("double_counter_1", 1001.1001);
	expectedValues.put("int_counter_2", 4L);
	expectedValues.put("long_counter_3", 3333333336L);
	int statCount = assertStatisticsNotification(notification, expectedValues);
	assertThat(statCount).isEqualTo(3);

	// validate no notification occurs when no stats are updated
	timeStamp += NanoTimer.millisToNanos(1000);
	sampleCollector.sample(timeStamp);
	await()
	.until(() -> notifications.size() == 0);
	assertThat(notifications.isEmpty()).isTrue();

	// validate no notification occurs when only other stats are updated
	st1_2.incDouble("double_counter_1", 3.3);
	st1_2.incInt("int_counter_2", 1);
	st1_2.incLong("long_counter_3", 2);
	timeStamp += NanoTimer.millisToNanos(1000);
	sampleCollector.sample(timeStamp);
	await()
	.until(() -> notifications.size() == 0);
	assertThat(notifications.isEmpty()).isTrue();

	// validate notification only contains stats added to monitor
	st1_1.incInt("int_counter_2", 100);
	st1_2.incInt("int_counter_2", 200);
	timeStamp += NanoTimer.millisToNanos(1000);
	sampleCollector.sample(timeStamp);
	await()
	.until(() -> notifications.size() > 0);
	assertThat(notifications.size()).isEqualTo(1);
	notification = notifications.remove(0);
	assertThat(notification.getType()).isEqualTo(StatisticsNotification.Type.VALUE_CHANGED);
	expectedValues = new HashMap<>();
	expectedValues.put("int_counter_2", 104L);
	statCount = assertStatisticsNotification(notification, expectedValues);
	assertThat(statCount).isEqualTo(1);
	}
	}