public TransactionSimulator(IResource resource, IResourceManager resourceMgr)
throws ACIDException {
String id = "nc1";
transactionProvider = new TransactionSubsystem(id, null);
transactionManager = transactionProvider.getTransactionManager();
logManager = transactionProvider.getLogManager();
lockManager = transactionProvider.getLockManager();
recoveryManager = transactionProvider.getRecoveryManager();
transactionProvider
.getTransactionalResourceRepository()
.registerTransactionalResourceManager(resourceMgr.getResourceManagerId(), resourceMgr);
this.resourceMgr = resourceMgr;
this.logger = resource.getLogger();
this.resource = resource;
memLSN = LogUtil.getDummyLogicalLogLocator(transactionProvider.getLogManager());
}
public void executeTransactionOperation(
TransactionContext txnContext, FileResource.CounterOperation operation) throws ACIDException {
// lockManager.lock(txnContext, resourceId, 0);
ILogManager logManager = transactionProvider.getLogManager();
int currentValue = ((FileResource) resource).getMemoryCounter();
int finalValue;
switch (operation) {
case INCREMENT:
finalValue = currentValue + 1;
int logRecordLength =
((FileLogger) logger).generateLogRecordContent(currentValue, finalValue);
logManager.log(
LogType.UPDATE, txnContext, 1, -1, 1, ResourceType.LSM_BTREE, 0, null, logger, memLSN);
((FileResource) resource).increment();
break;
case DECREMENT:
finalValue = currentValue - 1;
logRecordLength = ((FileLogger) logger).generateLogRecordContent(currentValue, finalValue);
logManager.log(
LogType.UPDATE, txnContext, 1, -1, 1, ResourceType.LSM_BTREE, 0, null, logger, memLSN);
((FileResource) resource).decrement();
break;
}
}
