/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.runtime.module.service;
import static org.mule.runtime.api.util.Preconditions.checkArgument;
import org.mule.runtime.api.service.Service;
import org.mule.runtime.api.service.ServiceProvider;
import java.util.List;
/**
* Default implementation of {@link ServiceDiscoverer}
*/
public class DefaultServiceDiscoverer implements ServiceDiscoverer {
private final ServiceResolver serviceResolver;
private final ServiceProviderDiscoverer serviceProviderDiscoverer;
/**
* Creates a new instance.
*
* @param serviceProviderDiscoverer discovers available service providers. Non null.
* @param serviceResolver resolves dependencies on the discovered service providers. Non null.
*/
public DefaultServiceDiscoverer(ServiceProviderDiscoverer serviceProviderDiscoverer, ServiceResolver serviceResolver) {
checkArgument(serviceProviderDiscoverer != null, "serviceProviderDiscoverer cannot be null");
checkArgument(serviceResolver != null, "serviceDependencyResolver cannot be null");
this.serviceResolver = serviceResolver;
this.serviceProviderDiscoverer = serviceProviderDiscoverer;
}
@Override
public List<Service> discoverServices() throws ServiceResolutionError {
final List<ServiceProvider> serviceProviders = serviceProviderDiscoverer.discover();
return serviceResolver.resolveServices(serviceProviders);
}
}