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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 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.openecomp.sdc.common.transaction.mngr;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.openecomp.sdc.common.transaction.api.RollbackHandler;
import org.openecomp.sdc.common.transaction.api.TransactionUtils.DBActionCodeEnum;
import org.openecomp.sdc.common.transaction.api.TransactionUtils.DBTypeEnum;
import org.openecomp.sdc.common.util.MethodActivationStatusEnum;
import fj.data.Either;
public class RollbackManager {
private Map<DBTypeEnum, RollbackHandler> rollBackHandlersMap;
private Integer transactionId;
private String userId, actionType;
RollbackManager(Integer transactionId, String userId, String actionType, List<RollbackHandler> roleBackHandlers) {
this.transactionId = transactionId;
this.userId = userId;
this.actionType = actionType;
rollBackHandlersMap = new HashMap<>();
for (RollbackHandler handler : roleBackHandlers) {
rollBackHandlersMap.put(handler.getDBType(), handler);
}
}
public DBActionCodeEnum transactionRollback() {
DBActionCodeEnum rollbackResult = DBActionCodeEnum.SUCCESS;
Iterator<RollbackHandler> handlersItr = rollBackHandlersMap.values().iterator();
while (handlersItr.hasNext()) {
RollbackHandler handler = handlersItr.next();
DBActionCodeEnum rollbackCode = handler.doRollback();
if (rollbackCode == DBActionCodeEnum.FAIL_GENERAL) {
rollbackResult = DBActionCodeEnum.FAIL_GENERAL;
}
}
return rollbackResult;
}
protected Either<RollbackHandler, MethodActivationStatusEnum> addRollbackHandler(RollbackHandler rollbackHandler) {
Either<RollbackHandler, MethodActivationStatusEnum> result;
if (rollBackHandlersMap.containsKey(rollbackHandler.getDBType())) {
result = Either.right(MethodActivationStatusEnum.NOT_ALLOWED);
} else {
rollBackHandlersMap.put(rollbackHandler.getDBType(), rollbackHandler);
result = Either.left(rollbackHandler);
}
return result;
}
protected Either<RollbackHandler, MethodActivationStatusEnum> createRollbackHandler(DBTypeEnum dbType) {
final DBTypeEnum dbTypeFinal = dbType;
RollbackHandler rollbackHandler = new RollbackHandler(transactionId, userId, actionType) {
@Override
public DBTypeEnum getDBType() {
return dbTypeFinal;
}
@Override
protected boolean isRollbackForPersistenceData() {
return true;
}
};
Either<RollbackHandler, MethodActivationStatusEnum> result = addRollbackHandler(rollbackHandler);
return result;
}
protected Either<RollbackHandler, MethodActivationStatusEnum> getRollbackHandler(DBTypeEnum dbType) {
Either<RollbackHandler, MethodActivationStatusEnum> result;
if (rollBackHandlersMap.containsKey(dbType)) {
result = Either.left(rollBackHandlersMap.get(dbType));
} else {
result = Either.right(MethodActivationStatusEnum.NOT_FOUND);
}
return result;
}
}
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