com.huawei.openstack4j.model.common.resolvers.StableServiceVersionResolver Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2016 ContainX and OpenStack4j
*
* 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 com.huawei.openstack4j.model.common.resolvers;
import java.util.SortedSet;
import com.huawei.openstack4j.api.types.ServiceType;
import com.huawei.openstack4j.model.identity.v2.Access;
import com.huawei.openstack4j.model.identity.v3.Service;
/**
* Resolves each service to the lowest version which we consider most stable and
* tested
*
* @author Jeremy Unruh
*/
public final class StableServiceVersionResolver implements ServiceVersionResolver {
public static final StableServiceVersionResolver INSTANCE = new StableServiceVersionResolver();
private StableServiceVersionResolver() {
}
@Override
public Service resolveV3(ServiceType type, SortedSet services) {
return services.first();
}
@Override
public Access.Service resolveV2(ServiceType type, SortedSet services) {
return services.first();
}
}