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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.utils.services;
import org.onap.policy.common.capabilities.Startable;
import org.onap.policy.common.utils.services.ServiceManager.RunnableWithEx;
/**
* Container, of a service manager, that implements a {@link Startable} interface by
* delegating to the contained service manager. This allows subclasses to add actions to
* the service manager, while preventing other classes from doing so.
*/
public class ServiceManagerContainer implements Startable {
/**
* The contained manager.
*/
private final ServiceManager serviceManager;
/**
* Constructs the object, with a default name.
*/
public ServiceManagerContainer() {
serviceManager = new ServiceManager();
}
/**
* Constructs the object.
*
* @param name the manager's name, used for logging purposes
*/
public ServiceManagerContainer(String name) {
serviceManager = new ServiceManager(name);
}
public String getName() {
return serviceManager.getName();
}
/**
* Adds a pair of service actions to the manager.
*
* @param stepName name to be logged when the service is started/stopped
* @param starter function to start the service
* @param stopper function to stop the service
*/
protected void addAction(String stepName, RunnableWithEx starter, RunnableWithEx stopper) {
serviceManager.addAction(stepName, starter, stopper);
}
/**
* Adds a service to the manager. The manager will invoke the service's
* {@link Startable#start()} and {@link Startable#stop()} methods.
*
* @param stepName name to be logged when the service is started/stopped
* @param service object to be started/stopped
*/
protected void addService(String stepName, Startable service) {
serviceManager.addService(stepName, service);
}
@Override
public boolean isAlive() {
return serviceManager.isAlive();
}
@Override
public boolean start() {
return serviceManager.start();
}
@Override
public boolean stop() {
return serviceManager.stop();
}
@Override
public void shutdown() {
serviceManager.shutdown();
}
}
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