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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.openecomp.appc.adapter.iaas.provider.operation.api;
import org.openecomp.appc.adapter.iaas.provider.operation.impl.*;
import org.openecomp.appc.adapter.iaas.provider.operation.common.enums.Operation;
import org.openecomp.appc.exceptions.APPCException;
import java.util.HashMap;
import java.util.Map;
/**
* Singleton factory of provider operations objects with cache
* @since September 26, 2016
*/
public class ProviderOperationFactory {
/**
* holds instance of the class
*/
private static ProviderOperationFactory instance;
/**
* holds concrete operations objects
*/
private Map<Operation, IProviderOperation> operations;
/**
* private constructor
*/
private ProviderOperationFactory() {
this.operations = new HashMap<>();
}
/**
* @return instance of the factory
*/
public static ProviderOperationFactory getInstance() {
if (instance == null) {
instance = new ProviderOperationFactory();
}
return instance;
}
/**
* @param op
* @return concrete operation impl
*/
public IProviderOperation getOperationObject(Operation op) throws APPCException {
IProviderOperation opObject = operations.get(op);
if (opObject == null) {
switch (op) {
case EVACUATE_SERVICE:
opObject = new EvacuateServer();
break;
case MIGRATE_SERVICE:
opObject = new MigrateServer();
break;
case REBUILD_SERVICE:
opObject = new RebuildServer();
break;
case RESTART_SERVICE:
opObject = new RestartServer();
break;
case VMSTATUSCHECK_SERVICE:
opObject = new VmStatuschecker();
break;
case SNAPSHOT_SERVICE:
opObject = new CreateSnapshot();
break;
case TERMINATE_STACK:
opObject = new TerminateStack();
break;
case SNAPSHOT_STACK:
opObject = new SnapshotStack();
break;
case RESTORE_STACK:
opObject = new RestoreStack();
break;
case START_SERVICE:
opObject = new StartServer();
break;
case STOP_SERVICE:
opObject = new StopServer();
break;
case TERMINATE_SERVICE:
opObject = new TerminateServer();
break;
case LOOKUP_SERVICE:
opObject = new LookupServer();
break;
default:
throw new APPCException("Unsupported provider operation.");
}
operations.put(op,opObject);
}
return opObject;
}
}
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