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* 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.flume.node;
import static org.mockito.Mockito.*;
import java.io.File;
import java.util.List;
import java.util.Random;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.commons.io.FileUtils;
import org.apache.flume.Channel;
import org.apache.flume.SinkRunner;
import org.apache.flume.SourceRunner;
import org.apache.flume.lifecycle.LifecycleAware;
import org.apache.flume.lifecycle.LifecycleState;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import com.google.common.collect.Lists;
import com.google.common.eventbus.EventBus;
import com.google.common.io.Files;
public class TestApplication {
private File baseDir;
@Before
public void setup() throws Exception {
baseDir = Files.createTempDir();
}
@After
public void tearDown() throws Exception {
FileUtils.deleteDirectory(baseDir);
}
private <T extends LifecycleAware> T mockLifeCycle(Class<T> klass) {
T lifeCycleAware = mock(klass);
final AtomicReference<LifecycleState> state =
new AtomicReference<LifecycleState>();
state.set(LifecycleState.IDLE);
when(lifeCycleAware.getLifecycleState()).then(new Answer<LifecycleState>() {
@Override
public LifecycleState answer(InvocationOnMock invocation)
throws Throwable {
return state.get();
}
});
doAnswer(new Answer<Void>() {
@Override
public Void answer(InvocationOnMock invocation) throws Throwable {
state.set(LifecycleState.START);
return null;
}
}).when(lifeCycleAware).start();
doAnswer(new Answer<Void>() {
@Override
public Void answer(InvocationOnMock invocation) throws Throwable {
state.set(LifecycleState.STOP);
return null;
}
}).when(lifeCycleAware).stop();
return lifeCycleAware;
}
@Test
public void testBasicConfiguration() throws Exception {
EventBus eventBus = new EventBus("test-event-bus");
MaterializedConfiguration materializedConfiguration = new
SimpleMaterializedConfiguration();
SourceRunner sourceRunner = mockLifeCycle(SourceRunner.class);
materializedConfiguration.addSourceRunner("test", sourceRunner);
SinkRunner sinkRunner = mockLifeCycle(SinkRunner.class);
materializedConfiguration.addSinkRunner("test", sinkRunner);
Channel channel = mockLifeCycle(Channel.class);
materializedConfiguration.addChannel("test", channel);
ConfigurationProvider configurationProvider = mock(ConfigurationProvider.class);
when(configurationProvider.getConfiguration()).thenReturn(materializedConfiguration);
Application application = new Application();
eventBus.register(application);
eventBus.post(materializedConfiguration);
application.start();
Thread.sleep(1000L);
verify(sourceRunner).start();
verify(sinkRunner).start();
verify(channel).start();
application.stop();
Thread.sleep(1000L);
verify(sourceRunner).stop();
verify(sinkRunner).stop();
verify(channel).stop();
}
@Test
public void testFLUME1854() throws Exception {
File configFile = new File(baseDir, "flume-conf.properties");
Files.copy(new File(getClass().getClassLoader()
.getResource("flume-conf.properties").getFile()), configFile);
Random random = new Random();
for (int i = 0; i < 3; i++) {
EventBus eventBus = new EventBus("test-event-bus");
PollingPropertiesFileConfigurationProvider configurationProvider =
new PollingPropertiesFileConfigurationProvider("host1",
configFile, eventBus, 1);
List<LifecycleAware> components = Lists.newArrayList();
components.add(configurationProvider);
Application application = new Application(components);
eventBus.register(application);
application.start();
Thread.sleep(random.nextInt(10000));
application.stop();
}
}
}