/*
* 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.brooklyn.qa.load;
import static org.apache.brooklyn.core.sensor.DependentConfiguration.attributeWhenReady;
import static org.apache.brooklyn.core.sensor.DependentConfiguration.formatString;
import java.util.Collection;
import java.util.List;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.config.ConfigKey;
import org.apache.brooklyn.core.config.ConfigKeys;
import org.apache.brooklyn.core.entity.AbstractApplication;
import org.apache.brooklyn.core.entity.Attributes;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.entity.StartableApplication;
import org.apache.brooklyn.core.entity.trait.Startable;
import org.apache.brooklyn.core.location.PortRanges;
import org.apache.brooklyn.enricher.stock.Enrichers;
import org.apache.brooklyn.entity.database.mysql.MySqlNode;
import org.apache.brooklyn.entity.group.DynamicCluster;
import org.apache.brooklyn.entity.java.JavaEntityMethods;
import org.apache.brooklyn.entity.proxy.nginx.NginxController;
import org.apache.brooklyn.entity.webapp.ControlledDynamicWebAppCluster;
import org.apache.brooklyn.entity.webapp.DynamicWebAppCluster;
import org.apache.brooklyn.entity.webapp.JavaWebAppService;
import org.apache.brooklyn.entity.webapp.WebAppService;
import org.apache.brooklyn.entity.webapp.WebAppServiceConstants;
import org.apache.brooklyn.entity.webapp.jboss.JBoss7Server;
import org.apache.brooklyn.launcher.BrooklynLauncher;
import org.apache.brooklyn.policy.autoscaling.AutoScalerPolicy;
import org.apache.brooklyn.policy.enricher.HttpLatencyDetector;
import org.apache.brooklyn.util.CommandLineUtil;
import org.apache.brooklyn.util.collections.MutableSet;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
/**
* A 3-tier app where all components are just "simulated" - they don't actually run
* real app-servers or databases, instead just executing a "sleep" command to simulate
* the running process.
*
* This is useful for load testing, where we want to test the performance of Brooklyn
* rather than the ability to host many running app-servers.
*
* The app is based on WebClusterDatabaseExampleApp
*
* @see SimulatedJBoss7ServerImpl for description of purpose and configuration options.
*/
public class SimulatedTheeTierApp extends AbstractApplication {
public static final ConfigKey<Boolean> SIMULATE_ENTITY = ConfigKeys.newBooleanConfigKey("simulateEntity", "", true);
public static final ConfigKey<Boolean> SIMULATE_EXTERNAL_MONITORING = ConfigKeys.newBooleanConfigKey("simulateExternalMonitoring", "", true);
public static final ConfigKey<Boolean> SKIP_SSH_ON_START = ConfigKeys.newBooleanConfigKey("skipSshOnStart", "", false);
public static final String WAR_PATH = "classpath://hello-world.war";
public static final String DB_TABLE = "visitors";
public static final String DB_USERNAME = "brooklyn";
public static final String DB_PASSWORD = "br00k11n";
public static final boolean USE_HTTPS = false;
@Override
public void init() {
MySqlNode mysql = addChild(
EntitySpec.create(MySqlNode.class)
.impl(SimulatedMySqlNodeImpl.class));
ControlledDynamicWebAppCluster web = addChild(
EntitySpec.create(ControlledDynamicWebAppCluster.class)
.configure(ControlledDynamicWebAppCluster.MEMBER_SPEC, EntitySpec.create(JBoss7Server.class).impl(SimulatedJBoss7ServerImpl.class))
.configure(ControlledDynamicWebAppCluster.CONTROLLER_SPEC, EntitySpec.create(NginxController.class).impl(SimulatedNginxControllerImpl.class))
.configure(WebAppService.HTTP_PORT, PortRanges.fromString("8080+"))
.configure(JavaWebAppService.ROOT_WAR, WAR_PATH)
.configure(JavaEntityMethods.javaSysProp("brooklyn.example.db.url"),
formatString("jdbc:%s%s?user=%s\\&password=%s",
attributeWhenReady(mysql, MySqlNode.DATASTORE_URL), DB_TABLE, DB_USERNAME, DB_PASSWORD))
.configure(DynamicCluster.INITIAL_SIZE, 2)
.configure(WebAppService.ENABLED_PROTOCOLS, ImmutableSet.of(USE_HTTPS ? "https" : "http")) );
web.getCluster().policies().add(AutoScalerPolicy.builder().
metric(DynamicWebAppCluster.REQUESTS_PER_SECOND_IN_WINDOW_PER_NODE).
metricRange(10, 100).
sizeRange(2, 5).
build());
enrichers().add(Enrichers.builder()
.propagating(Attributes.MAIN_URI, WebAppServiceConstants.ROOT_URL,
DynamicWebAppCluster.REQUESTS_PER_SECOND_IN_WINDOW,
HttpLatencyDetector.REQUEST_LATENCY_IN_SECONDS_IN_WINDOW)
.from(web)
.build());
enrichers().add(Enrichers.builder()
.aggregating(Startable.SERVICE_UP)
.publishing(Startable.SERVICE_UP)
.fromHardcodedProducers(ImmutableList.of(web, mysql))
.computing(new Function<Collection<Boolean>, Boolean>() {
@Override public Boolean apply(Collection<Boolean> input) {
return input != null && input.size() == 2 && MutableSet.copyOf(input).equals(ImmutableSet.of(true));
}})
.build());
}
public static void main(String[] argv) {
List<String> args = Lists.newArrayList(argv);
String port = CommandLineUtil.getCommandLineOption(args, "--port", "8081+");
String location = CommandLineUtil.getCommandLineOption(args, "--location", "localhost");
BrooklynLauncher launcher = BrooklynLauncher.newInstance()
.application(EntitySpec.create(StartableApplication.class, SimulatedTheeTierApp.class)
.displayName("Brooklyn WebApp Cluster with Database example"))
.webconsolePort(port)
.location(location)
.start();
Entities.dumpInfo(launcher.getApplications());
}
}