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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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package org.apache.brooklyn.entity.java;
import static org.testng.Assert.assertTrue;
import java.io.File;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.sensor.AttributeSensor;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.mgmt.internal.LocalManagementContext;
import org.apache.brooklyn.core.mgmt.rebind.RebindTestUtils;
import org.apache.brooklyn.core.sensor.Sensors;
import org.apache.brooklyn.core.test.entity.TestApplication;
import org.apache.brooklyn.entity.java.VanillaJavaApp;
import org.apache.brooklyn.entity.java.VanillaJavaAppImpl;
import org.apache.brooklyn.entity.java.JavaOptsTest.TestingJavaOptsVanillaJavaAppImpl;
import org.apache.brooklyn.policy.enricher.RollingTimeWindowMeanEnricher;
import org.apache.brooklyn.test.EntityTestUtils;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.core.ResourceUtils;
import org.apache.brooklyn.util.time.Duration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import org.apache.brooklyn.location.localhost.LocalhostMachineProvisioningLocation;
import com.google.common.base.Predicates;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.io.Files;
public class VanillaJavaAppRebindTest {
private static final Logger LOG = LoggerFactory.getLogger(VanillaJavaAppRebindTest.class);
private static String BROOKLYN_THIS_CLASSPATH = null;
private static Class<?> MAIN_CLASS = ExampleVanillaMain.class;
private ClassLoader classLoader = getClass().getClassLoader();
private LocalManagementContext managementContext;
private File mementoDir;
private TestApplication app;
private LocalhostMachineProvisioningLocation loc;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
mementoDir = Files.createTempDir();
managementContext = RebindTestUtils.newPersistingManagementContext(mementoDir, classLoader);
if (BROOKLYN_THIS_CLASSPATH==null) {
BROOKLYN_THIS_CLASSPATH = ResourceUtils.create(MAIN_CLASS).getClassLoaderDir();
}
app = TestApplication.Factory.newManagedInstanceForTests(managementContext);
loc = app.newLocalhostProvisioningLocation(MutableMap.of("address", "localhost"));
}
@AfterMethod(alwaysRun = true)
public void tearDown() throws Exception {
if (app != null) Entities.destroyAll(app.getManagementContext());
if (mementoDir != null) RebindTestUtils.deleteMementoDir(mementoDir);
}
private void rebind() throws Exception {
RebindTestUtils.waitForPersisted(app);
managementContext.terminate();
app = (TestApplication) RebindTestUtils.rebind(mementoDir, getClass().getClassLoader());
managementContext = (LocalManagementContext) app.getManagementContext();
loc = (LocalhostMachineProvisioningLocation) Iterables.get(app.getLocations(), 0, null);
}
@Test(groups="Integration")
public void testRebindToJavaApp() throws Exception {
VanillaJavaApp javaProcess = app.addChild(EntitySpec.create(VanillaJavaApp.class, TestingJavaOptsVanillaJavaAppImpl.class)
.configure("main", MAIN_CLASS.getCanonicalName()).configure("classpath", ImmutableList.of(BROOKLYN_THIS_CLASSPATH)));
app.start(ImmutableList.of(loc));
rebind();
VanillaJavaApp javaProcess2 = (VanillaJavaApp) Iterables.find(app.getChildren(), Predicates.instanceOf(VanillaJavaApp.class));
EntityTestUtils.assertAttributeEqualsEventually(javaProcess2, VanillaJavaApp.SERVICE_UP, true);
}
@Test(groups="Integration")
public void testRebindToKilledJavaApp() throws Exception {
VanillaJavaApp javaProcess = app.addChild(EntitySpec.create(VanillaJavaApp.class, TestingJavaOptsVanillaJavaAppImpl.class)
.configure("main", MAIN_CLASS.getCanonicalName()).configure("classpath", ImmutableList.of(BROOKLYN_THIS_CLASSPATH)));
app.start(ImmutableList.of(loc));
javaProcess.kill();
long starttime = System.currentTimeMillis();
rebind();
long rebindTime = System.currentTimeMillis() - starttime;
VanillaJavaApp javaProcess2 = (VanillaJavaApp) Iterables.find(app.getChildren(), Predicates.instanceOf(VanillaJavaApp.class));
EntityTestUtils.assertAttributeEqualsEventually(javaProcess2, VanillaJavaApp.SERVICE_UP, false);
// check that it was quick (previously it hung)
assertTrue(rebindTime < 30*1000, "rebindTime="+rebindTime);
}
@Test(groups="Integration")
public void testEnrichersOnRebindJavaApp() throws Exception {
VanillaJavaApp javaProcess = app.addChild(EntitySpec.create(VanillaJavaApp.class, EnrichedVanillaJavaAppImpl.class)
.configure("main", MAIN_CLASS.getCanonicalName()).configure("classpath", ImmutableList.of(BROOKLYN_THIS_CLASSPATH)));
app.start(ImmutableList.of(loc));
EntityTestUtils.assertAttributeEventuallyNonNull(javaProcess, EnrichedVanillaJavaAppImpl.AVG1);
EntityTestUtils.assertAttributeEventuallyNonNull(javaProcess, EnrichedVanillaJavaAppImpl.AVG2);
LOG.info("Got avg "+javaProcess.getAttribute(EnrichedVanillaJavaAppImpl.AVG1));
rebind();
VanillaJavaApp javaProcess2 = (VanillaJavaApp) Iterables.find(app.getChildren(), Predicates.instanceOf(VanillaJavaApp.class));
// check sensors working
EntityTestUtils.assertAttributeChangesEventually(javaProcess2, EnrichedVanillaJavaAppImpl.PROCESS_CPU_TIME);
LOG.info("Avg now "+javaProcess2.getAttribute(EnrichedVanillaJavaAppImpl.AVG1));
// check enrichers are functioning
EntityTestUtils.assertAttributeChangesEventually(javaProcess2, EnrichedVanillaJavaAppImpl.AVG1);
EntityTestUtils.assertAttributeChangesEventually(javaProcess2, EnrichedVanillaJavaAppImpl.AVG2);
LOG.info("Avg now "+javaProcess2.getAttribute(EnrichedVanillaJavaAppImpl.AVG1));
// and check we don't have too many
Assert.assertEquals(javaProcess2.getEnrichers().size(), javaProcess.getEnrichers().size());
}
public static class EnrichedVanillaJavaAppImpl extends VanillaJavaAppImpl {
private static final AttributeSensor<Double> AVG1 = Sensors.newDoubleSensor("avg1");
private static final AttributeSensor<Double> AVG2 = Sensors.newDoubleSensor("avg2");
@Override
public void onManagementStarted() {
super.onManagementStarted();
LOG.info("mgmt started for "+this);
enrichers().add(new RollingTimeWindowMeanEnricher<Double>(this, PROCESS_CPU_TIME, AVG1, Duration.TEN_SECONDS));
}
@Override
protected void connectSensors() {
super.connectSensors();
LOG.info("connecting sensors for "+this);
enrichers().add(new RollingTimeWindowMeanEnricher<Double>(this, PROCESS_CPU_TIME, AVG2, Duration.TEN_SECONDS));
}
}
}