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/*
* 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.
*/
package org.apache.tuscany.sca.assembly.builder.impl;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.assembly.CompositeService;
import org.apache.tuscany.sca.assembly.Service;
/**
* This class encapsulates utility methods to deal with service definitions.
*
* @version $Rev$ $Date$
*/
abstract class ServiceConfigurationUtil {
/**
* Follow a service promotion chain down to the inner most (non composite)
* component service.
*
* @param topCompositeService
* @return
*/
static ComponentService getPromotedComponentService(CompositeService compositeService) {
ComponentService componentService = compositeService.getPromotedService();
if (componentService != null) {
Service service = componentService.getService();
if (componentService.getName() != null && service instanceof CompositeService) {
// Continue to follow the service promotion chain
return getPromotedComponentService((CompositeService)service);
} else {
// Found a non-composite service
return componentService;
}
} else {
// No promoted service
return null;
}
}
/**
* Follow a service promotion chain down to the innermost (non-composite) component.
*
* @param compositeService
* @return
*/
static Component getPromotedComponent(CompositeService compositeService) {
ComponentService componentService = compositeService.getPromotedService();
if (componentService != null) {
Service service = componentService.getService();
if (componentService.getName() != null && service instanceof CompositeService) {
// Continue to follow the service promotion chain
return getPromotedComponent((CompositeService)service);
} else {
// Found a non-composite service
return compositeService.getPromotedComponent();
}
} else {
// No promoted service
return null;
}
}
}
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