package org.apache.stratos.cloud.controller.internal;
/*
*
* 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.
*
*/
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratos.cloud.controller.exception.CloudControllerException;
import org.apache.stratos.cloud.controller.impl.CloudControllerServiceImpl;
import org.apache.stratos.cloud.controller.interfaces.CloudControllerService;
import org.apache.stratos.cloud.controller.publisher.TopologySynchronizerTaskScheduler;
import org.apache.stratos.cloud.controller.runtime.FasterLookUpDataHolder;
import org.apache.stratos.cloud.controller.topic.instance.status.InstanceStatusEventMessageDelegator;
import org.apache.stratos.cloud.controller.topic.instance.status.InstanceStatusEventMessageListener;
import org.apache.stratos.cloud.controller.util.CloudControllerConstants;
import org.apache.stratos.cloud.controller.util.ServiceReferenceHolder;
import org.apache.stratos.messaging.broker.publish.EventPublisherPool;
import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
import org.apache.stratos.messaging.util.Constants;
import org.osgi.framework.BundleContext;
import org.osgi.service.component.ComponentContext;
import org.wso2.carbon.ntask.core.service.TaskService;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import org.wso2.carbon.registry.core.service.RegistryService;
import org.wso2.carbon.registry.core.session.UserRegistry;
import org.wso2.carbon.utils.ConfigurationContextService;
/**
* Registering Cloud Controller Service.
*
* @scr.component name="org.apache.stratos.cloud.controller" immediate="true"
* @scr.reference name="ntask.component" interface="org.wso2.carbon.ntask.core.service.TaskService"
* cardinality="1..1" policy="dynamic" bind="setTaskService"
* unbind="unsetTaskService"
* @scr.reference name="registry.service"
* interface=
* "org.wso2.carbon.registry.core.service.RegistryService"
* cardinality="1..1" policy="dynamic" bind="setRegistryService"
* unbind="unsetRegistryService"
* @scr.reference name="config.context.service"
* interface="org.wso2.carbon.utils.ConfigurationContextService"
* cardinality="1..1" policy="dynamic"
* bind="setConfigurationContextService"
* unbind="unsetConfigurationContextService"
*/
//* @scr.reference name="org.apache.stratos.cloud.controller.deployers"
//* interface="org.apache.stratos.cloud.controller.interfaces.CloudControllerDeployerService"
//* cardinality="1..1" policy="dynamic" bind="setCloudControllerDeployerService"
//* unbind="unsetCloudControllerDeployerService"
public class CloudControllerDSComponent {
private static final Log log = LogFactory.getLog(CloudControllerDSComponent.class);
private static final FasterLookUpDataHolder dataHolder = FasterLookUpDataHolder.getInstance();
protected void activate(ComponentContext context) {
try {
// Start instance status event message listener
TopicSubscriber subscriber = new TopicSubscriber(CloudControllerConstants.INSTANCE_TOPIC);
subscriber.setMessageListener(new InstanceStatusEventMessageListener());
Thread tsubscriber = new Thread(subscriber);
tsubscriber.start();
// Start instance status message delegator
InstanceStatusEventMessageDelegator delegator = new InstanceStatusEventMessageDelegator();
Thread tdelegator = new Thread(delegator);
tdelegator.start();
// Register cloud controller service E
BundleContext bundleContext = context.getBundleContext();
bundleContext.registerService(CloudControllerService.class.getName(), new CloudControllerServiceImpl(), null);
if(log.isInfoEnabled()) {
log.info("Scheduling tasks");
}
TopologySynchronizerTaskScheduler
.schedule(ServiceReferenceHolder.getInstance()
.getTaskService());
} catch (Throwable e) {
log.error("******* Cloud Controller Service bundle is failed to activate ****", e);
}
}
protected void setTaskService(TaskService taskService) {
if (log.isDebugEnabled()) {
log.debug("Setting the Task Service");
}
ServiceReferenceHolder.getInstance().setTaskService(taskService);
}
protected void unsetTaskService(TaskService taskService) {
if (log.isDebugEnabled()) {
log.debug("Unsetting the Task Service");
}
ServiceReferenceHolder.getInstance().setTaskService(null);
}
protected void setRegistryService(RegistryService registryService) {
if (log.isDebugEnabled()) {
log.debug("Setting the Registry Service");
}
try {
UserRegistry registry = registryService.getGovernanceSystemRegistry();
ServiceReferenceHolder.getInstance()
.setRegistry(registry);
} catch (RegistryException e) {
String msg = "Failed when retrieving Governance System Registry.";
log.error(msg, e);
throw new CloudControllerException(msg, e);
}
}
protected void unsetRegistryService(RegistryService registryService) {
if (log.isDebugEnabled()) {
log.debug("Unsetting the Registry Service");
}
ServiceReferenceHolder.getInstance().setRegistry(null);
}
protected void setConfigurationContextService(ConfigurationContextService cfgCtxService) {
ServiceReferenceHolder.getInstance().setAxisConfiguration(
cfgCtxService.getServerConfigContext().getAxisConfiguration());
}
protected void unsetConfigurationContextService(ConfigurationContextService cfgCtxService) {
ServiceReferenceHolder.getInstance().setAxisConfiguration(null);
}
protected void deactivate(ComponentContext ctx) {
// Close event publisher connections to message broker
EventPublisherPool.close(Constants.TOPOLOGY_TOPIC);
}
}