Java tutorial
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See the License for the * specific language governing permissions and limitations * under the License. */ package org.apache.brooklyn.demo; import static com.google.common.base.Preconditions.checkNotNull; import java.util.Arrays; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.apache.brooklyn.api.catalog.Catalog; import org.apache.brooklyn.api.catalog.CatalogConfig; import org.apache.brooklyn.api.entity.EntitySpec; import org.apache.brooklyn.config.ConfigKey; import org.apache.brooklyn.config.StringConfigMap; import org.apache.brooklyn.core.config.ConfigKeys; import org.apache.brooklyn.core.entity.AbstractApplication; import org.apache.brooklyn.core.entity.Entities; import org.apache.brooklyn.core.entity.StartableApplication; import org.apache.brooklyn.core.location.PortRanges; import org.apache.brooklyn.core.sensor.PortAttributeSensorAndConfigKey; import org.apache.brooklyn.entity.dns.geoscaling.GeoscalingDnsService; import org.apache.brooklyn.entity.group.DynamicRegionsFabric; import org.apache.brooklyn.entity.proxy.AbstractController; import org.apache.brooklyn.entity.webapp.ElasticJavaWebAppService; import org.apache.brooklyn.entity.webapp.JavaWebAppService; import org.apache.brooklyn.launcher.BrooklynLauncher; import org.apache.brooklyn.util.CommandLineUtil; import org.apache.brooklyn.util.core.BrooklynMavenArtifacts; import org.apache.brooklyn.util.core.ResourceUtils; import com.google.common.base.Joiner; import com.google.common.collect.ImmutableList; import com.google.common.collect.Lists; @Catalog(name = "Global Web Fabric", description = "Deploys a WAR to multiple clusters, showing how Brooklyn fabrics work", iconUrl = "classpath://brooklyn/demo/glossy-3d-blue-web-icon.png") public class GlobalWebFabricExample extends AbstractApplication { public static final Logger log = LoggerFactory.getLogger(GlobalWebFabricExample.class); static final List<String> DEFAULT_LOCATIONS = ImmutableList.of("aws-ec2:eu-west-1", "aws-ec2:ap-southeast-1", "aws-ec2:us-west-1"); public static final String DEFAULT_WAR_PATH = ResourceUtils.create(GlobalWebFabricExample.class) // take this war, from the classpath, or via maven if not on the classpath .firstAvailableUrl("classpath://hello-world-webapp.war", BrooklynMavenArtifacts.localUrl("example", "brooklyn-example-hello-world-webapp", "war")) .or("classpath://hello-world-webapp.war"); @CatalogConfig(label = "WAR (URL)", priority = 2) public static final ConfigKey<String> WAR_PATH = ConfigKeys.newConfigKey("app.war", "URL to the application archive which should be deployed", DEFAULT_WAR_PATH); // load-balancer instances must run on some port to work with GeoDNS, port 80 to work without special, so make that default // (but included here in case it runs on a different port on all machines, or use a range to work with multiple localhosts) @CatalogConfig(label = "Proxy server HTTP port") public static final PortAttributeSensorAndConfigKey PROXY_HTTP_PORT = new PortAttributeSensorAndConfigKey( AbstractController.PROXY_HTTP_PORT, PortRanges.fromInteger(80)); @Override public void initApp() { StringConfigMap config = getManagementContext().getConfig(); GeoscalingDnsService geoDns = addChild(EntitySpec.create(GeoscalingDnsService.class) .displayName("GeoScaling DNS") .configure("username", checkNotNull(config.getFirst("brooklyn.geoscaling.username"), "username")) .configure("password", checkNotNull(config.getFirst("brooklyn.geoscaling.password"), "password")) .configure("primaryDomainName", checkNotNull(config.getFirst("brooklyn.geoscaling.primaryDomain"), "primaryDomain")) .configure("smartSubdomainName", "brooklyn")); DynamicRegionsFabric webFabric = addChild( EntitySpec.create(DynamicRegionsFabric.class).displayName("Web Fabric") .configure(DynamicRegionsFabric.FACTORY, new ElasticJavaWebAppService.Factory()) //specify the WAR file to use .configure(JavaWebAppService.ROOT_WAR, Entities.getRequiredUrlConfig(this, WAR_PATH))); //tell GeoDNS what to monitor geoDns.setTargetEntityProvider(webFabric); } public static void main(String[] argv) { List<String> args = Lists.newArrayList(argv); String port = CommandLineUtil.getCommandLineOption(args, "--port", "8081+"); String locations = CommandLineUtil.getCommandLineOption(args, "--locations", Joiner.on(",").join(DEFAULT_LOCATIONS)); BrooklynLauncher launcher = BrooklynLauncher.newInstance() .application(EntitySpec.create(StartableApplication.class, GlobalWebFabricExample.class) .displayName("Brooklyn Global Web Fabric Example")) .webconsolePort(port).locations(Arrays.asList(locations)).start(); Entities.dumpInfo(launcher.getApplications()); } }