/**
* 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.camel.component.metrics.spi;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import com.codahale.metrics.InstrumentedExecutorService;
import com.codahale.metrics.InstrumentedScheduledExecutorService;
import com.codahale.metrics.MetricRegistry;
import org.apache.camel.ThreadPoolRejectedPolicy;
import org.apache.camel.spi.ThreadPoolFactory;
import org.apache.camel.spi.ThreadPoolProfile;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.runners.MockitoJUnitRunner;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.junit.Assert.assertThat;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.times;
@RunWith(MockitoJUnitRunner.class)
public class InstrumentedThreadPoolFactoryTest {
private static final String METRICS_NAME = "metrics.name";
@Mock
private MetricRegistry registry;
@Mock
private ThreadPoolFactory threadPoolFactory;
@Mock
private ThreadFactory threadFactory;
private ThreadPoolProfile profile;
private InstrumentedThreadPoolFactory instrumentedThreadPoolFactory;
private InOrder inOrder;
@Before
public void setUp() throws Exception {
profile = new ThreadPoolProfile(METRICS_NAME);
profile.setDefaultProfile(false);
profile.setMaxPoolSize(10);
profile.setMaxQueueSize(1000);
profile.setPoolSize(5);
profile.setKeepAliveTime(5L);
profile.setTimeUnit(TimeUnit.SECONDS);
profile.setRejectedPolicy(ThreadPoolRejectedPolicy.CallerRuns);
instrumentedThreadPoolFactory = new InstrumentedThreadPoolFactory(registry, threadPoolFactory);
inOrder = Mockito.inOrder(registry);
}
@Test
public void testNewCacheThreadPool() throws Exception {
final ExecutorService executorService = instrumentedThreadPoolFactory.newCachedThreadPool(threadFactory);
assertThat(executorService, is(notNullValue()));
assertThat(executorService, is(instanceOf(InstrumentedExecutorService.class)));
inOrder.verify(registry, times(1)).meter(anyString());
inOrder.verify(registry, times(1)).counter(anyString());
inOrder.verify(registry, times(1)).meter(anyString());
inOrder.verify(registry, times(1)).timer(anyString());
inOrder.verifyNoMoreInteractions();
}
@Test
public void testNewThreadPool() throws Exception {
final ExecutorService executorService = instrumentedThreadPoolFactory.newThreadPool(profile, threadFactory);
assertThat(executorService, is(notNullValue()));
assertThat(executorService, is(instanceOf(InstrumentedExecutorService.class)));
inOrder.verify(registry, times(1)).meter(MetricRegistry.name(METRICS_NAME, new String[]{"submitted"}));
inOrder.verify(registry, times(1)).counter(MetricRegistry.name(METRICS_NAME, new String[]{"running"}));
inOrder.verify(registry, times(1)).meter(MetricRegistry.name(METRICS_NAME, new String[]{"completed"}));
inOrder.verify(registry, times(1)).timer(MetricRegistry.name(METRICS_NAME, new String[]{"duration"}));
inOrder.verifyNoMoreInteractions();
}
@Test
public void testNewScheduledThreadPool() throws Exception {
final ScheduledExecutorService scheduledExecutorService = instrumentedThreadPoolFactory.newScheduledThreadPool(profile, threadFactory);
assertThat(scheduledExecutorService, is(notNullValue()));
assertThat(scheduledExecutorService, is(instanceOf(InstrumentedScheduledExecutorService.class)));
inOrder.verify(registry, times(1)).meter(MetricRegistry.name(METRICS_NAME, new String[]{"submitted"}));
inOrder.verify(registry, times(1)).counter(MetricRegistry.name(METRICS_NAME, new String[]{"running"}));
inOrder.verify(registry, times(1)).meter(MetricRegistry.name(METRICS_NAME, new String[]{"completed"}));
inOrder.verify(registry, times(1)).timer(MetricRegistry.name(METRICS_NAME, new String[]{"duration"}));
inOrder.verify(registry, times(1)).meter(MetricRegistry.name(METRICS_NAME, new String[]{"scheduled.once"}));
inOrder.verify(registry, times(1)).meter(MetricRegistry.name(METRICS_NAME, new String[]{"scheduled.repetitively"}));
inOrder.verify(registry, times(1)).counter(MetricRegistry.name(METRICS_NAME, new String[]{"scheduled.overrun"}));
inOrder.verify(registry, times(1)).histogram(MetricRegistry.name(METRICS_NAME, new String[]{"scheduled.percent-of-period"}));
inOrder.verifyNoMoreInteractions();
}
}