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org.fusesource.fabric.itests.EmbeddedFabricService Maven / Gradle / Ivy
/**
* Copyright (C) FuseSource, Inc.
* http://fusesource.com
*
* Licensed 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.fusesource.fabric.itests;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.ServiceLoader;
import de.kalpatec.pojosr.framework.launch.BundleDescriptor;
import de.kalpatec.pojosr.framework.launch.ClasspathScanner;
import de.kalpatec.pojosr.framework.launch.PojoServiceRegistry;
import de.kalpatec.pojosr.framework.launch.PojoServiceRegistryFactory;
import org.fusesource.fabric.api.FabricService;
import org.fusesource.fabric.api.ZooKeeperClusterService;
import org.fusesource.fabric.zookeeper.internal.OsgiZkClient;
import org.fusesource.fabric.zookeeper.IZKClient;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceListener;
import org.osgi.framework.ServiceReference;
import org.osgi.service.cm.ConfigurationAdmin;
import org.osgi.util.tracker.ServiceTracker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class EmbeddedFabricService {
private static final Logger log = LoggerFactory.getLogger("Test Registry");
private PojoServiceRegistry registry = null;
public void start() throws Exception {
System.setProperty("org.osgi.framework.storage", "target/osgi/" + System.currentTimeMillis());
System.setProperty("karaf.name", "root");
List bundles = new ClasspathScanner().scanForBundles();
log.info("Located following bundles on classpath : ");
for ( BundleDescriptor desc : bundles ) {
log.debug("Bundle : {}", desc);
}
Map config = new HashMap();
config.put(PojoServiceRegistryFactory.BUNDLE_DESCRIPTORS, bundles);
ServiceLoader loader = ServiceLoader.load(PojoServiceRegistryFactory.class);
registry = loader.iterator().next().newPojoServiceRegistry(config);
registry.addServiceListener(new ServiceListener() {
@Override
public void serviceChanged(ServiceEvent event) {
ServiceReference ref = event.getServiceReference();
Object service = registry.getService(ref);
switch (event.getType()) {
case ServiceEvent.MODIFIED:
log.info("Service modified : " + service);
break;
case ServiceEvent.MODIFIED_ENDMATCH:
log.info("Service modified endmatch : " + service);
break;
case ServiceEvent.REGISTERED:
log.info("Service registering : " + service);
break;
case ServiceEvent.UNREGISTERING:
log.info("Service unregistering : " + service);
break;
default:
log.info("Unknown event : " + event.getType() + " service : " + service);
}
}
});
/*
log.info("\n\nWaiting for 5 seconds...\n\n");
Thread.sleep(10000);
log.info("\n\nDone waiting...\n\n");
*/
//wait for some key services...
getConfigAdmin();
getService(javax.management.MBeanServer.class, registry);
getZooKeeperClusterService();
createZooKeeperCluster();
IZKClient client = getZooKeeperClient();
((OsgiZkClient) client).waitForConnected();
getFabricService();
dumpBundles();
dumpServiceReferences();
}
public void dumpBundles() {
BundleContext bc = registry.getBundleContext();
for (Bundle b : bc.getBundles()) {
switch (b.getState()) {
case Bundle.ACTIVE:
log.debug(String.format("Found bundle : %s with version %s in state ACTIVE", b.getSymbolicName(), b.getVersion()));
break;
case Bundle.INSTALLED:
log.debug(String.format("Found bundle : %s with version %s in state INSTALLED", b.getSymbolicName(), b.getVersion()));
break;
case Bundle.RESOLVED:
log.debug(String.format("Found bundle : %s with version %s in state RESOLVED", b.getSymbolicName(), b.getVersion()));
break;
case Bundle.STARTING:
log.debug(String.format("Found bundle : %s with version %s in state STARTING", b.getSymbolicName(), b.getVersion()));
break;
case Bundle.STOPPING:
log.debug(String.format("Found bundle : %s with version %s in state STOPPING", b.getSymbolicName(), b.getVersion()));
break;
case Bundle.UNINSTALLED:
log.debug(String.format("Found bundle : %s with version %s in state UNINSTALLED", b.getSymbolicName(), b.getVersion()));
break;
default:
log.debug(String.format("Found bundle : %s with version %s in state %s", b.getSymbolicName(), b.getVersion(), b.getState()));
break;
}
}
}
public void dumpServiceReferences() throws Exception {
BundleContext bc = registry.getBundleContext();
for (ServiceReference ref : bc.getAllServiceReferences(null, null)) {
log.debug(String.format("Found Service reference : %s", ref.toString()));
}
}
public void stop() {
BundleContext bc = registry.getBundleContext();
for (Bundle b : bc.getBundles()) {
log.debug(String.format("Stopping bundle : %s", b.getSymbolicName()));
try {
b.stop();
} catch (BundleException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
}
registry = null;
}
public PojoServiceRegistry getRegistry() {
return registry;
}
public static T getService(Class type, String filter, PojoServiceRegistry registry) {
try {
ServiceReference[] ref = registry.getServiceReferences(type.getName(), filter);
if ( ref == null ) {
return null;
}
if ( ref.length > 1 || ref.length == 0 ) {
return null;
}
return type.cast(registry.getService(ref[0]));
} catch (InvalidSyntaxException e) {
return null;
}
}
public static T getService(Class type, final PojoServiceRegistry registry) {
ServiceTracker tracker = new ServiceTracker(registry.getBundleContext(), type.getName(), null);
tracker.open(true);
Object rc;
try {
rc = tracker.waitForService(60000);
} catch (InterruptedException e) {
throw new RuntimeException("Failed to wait for service", e);
}
if (rc == null) {
throw new RuntimeException("Failed to get service");
}
tracker.close();
return type.cast(rc);
}
public ConfigurationAdmin getConfigAdmin() {
return getService(ConfigurationAdmin.class, registry);
}
public ZooKeeperClusterService getZooKeeperClusterService() throws Exception {
return getService(ZooKeeperClusterService.class, getRegistry());
}
public void createZooKeeperCluster() throws Exception {
ZooKeeperClusterService clusterService = getZooKeeperClusterService();
clusterService.clean();
clusterService.createCluster(Arrays.asList("root"));
}
public FabricService getFabricService() throws Exception {
FabricService service = getService(FabricService.class, getRegistry());
return service;
}
public IZKClient getZooKeeperClient() throws Exception {
return getService(IZKClient.class, getRegistry());
}
}
