public Job LoadTransaction(string storeId, ITransactionInfo txn)
{
var transactionLog = _storeManager.GetTransactionLog(_baseLocation + "\\" + storeId);
var jobId = Guid.NewGuid();
switch (txn.TransactionType)
{
case TransactionType.ImportJob:
var importJob = new ImportJob(jobId, null);
importJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(txn.DataStartPosition));
return(importJob);
case TransactionType.UpdateTransaction:
var updateJob = new UpdateTransaction(jobId, null);
updateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(txn.DataStartPosition));
return(updateJob);
case TransactionType.SparqlUpdateTransaction:
var sparqlUpdateJob = new SparqlUpdateJob(jobId, null, null);
sparqlUpdateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(txn.DataStartPosition));
return(sparqlUpdateJob);
}
return(null);
}
public Guid ReExecuteTransaction(string storeId, ulong dataStartPosition, TransactionType transactionType)
{
var storeWorker = GetStoreWorker(storeId);
var transactionLog = _storeManager.GetTransactionLog(_baseLocation + "\\" + storeId);
var jobId = Guid.NewGuid();
switch (transactionType)
{
case TransactionType.ImportJob:
var importJob = new ImportJob(jobId, storeWorker);
importJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(dataStartPosition));
storeWorker.QueueJob(importJob);
break;
case TransactionType.UpdateTransaction:
var updateJob = new UpdateTransaction(jobId, storeWorker);
updateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(dataStartPosition));
storeWorker.QueueJob(updateJob);
break;
case TransactionType.SparqlUpdateTransaction:
var sparqlUpdateJob = new SparqlUpdateJob(jobId, storeWorker, null);
sparqlUpdateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(dataStartPosition));
storeWorker.QueueJob(sparqlUpdateJob);
break;
}
return(jobId);
}
public Job LoadTransaction(string storeId, ITransactionInfo txn)
{
var transactionLog = _storeManager.GetTransactionLog(_baseLocation + "\\" + storeId);
var jobId = Guid.NewGuid();
switch (txn.TransactionType)
{
case TransactionType.ImportJob:
var importJob = new ImportJob(jobId, null);
importJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(txn.DataStartPosition));
return importJob;
case TransactionType.UpdateTransaction:
var updateJob = new UpdateTransaction(jobId, null);
updateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(txn.DataStartPosition));
return updateJob;
case TransactionType.SparqlUpdateTransaction:
var sparqlUpdateJob = new SparqlUpdateJob(jobId, null, null);
sparqlUpdateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(txn.DataStartPosition));
return sparqlUpdateJob;
}
return null;
}
public Guid ReExecuteTransaction(string storeId, ulong dataStartPosition, TransactionType transactionType)
{
var storeWorker = GetStoreWorker(storeId);
var transactionLog = _storeManager.GetTransactionLog(_baseLocation + "\\" + storeId);
var jobId = Guid.NewGuid();
switch (transactionType)
{
case TransactionType.ImportJob:
var importJob = new ImportJob(jobId, storeWorker);
importJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(dataStartPosition));
storeWorker.QueueJob(importJob);
break;
case TransactionType.UpdateTransaction:
var updateJob = new UpdateTransaction(jobId, storeWorker);
updateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(dataStartPosition));
storeWorker.QueueJob(updateJob);
break;
case TransactionType.SparqlUpdateTransaction:
var sparqlUpdateJob = new SparqlUpdateJob(jobId, storeWorker, null);
sparqlUpdateJob.ReadTransactionDataFromStream(transactionLog.GetTransactionData(dataStartPosition));
storeWorker.QueueJob(sparqlUpdateJob);
break;
}
return jobId;
}
public void FindWorkingTransaction()
{
Store store = new Store("c:\\brightstar\\twitteringtest\\", false);
FileStoreManager fsm = new FileStoreManager(StoreConfiguration.DefaultStoreConfiguration);
int txnCount = 0;
foreach (var cp in store.GetCommitPoints())
{
var oldStore = fsm.OpenStore("c:\\brightstar\\twitteringtest\\", cp.LocationOffset);
try
{
oldStore.ExecuteSparqlQuery(TestQuery, SparqlResultsFormat.Xml);
Console.WriteLine("Query worked for commit point : {0} @ {1}", cp.LocationOffset, cp.CommitTime);
break;
}
catch (Exception)
{
Console.WriteLine("Query failed for commit point : {0} @ {1}", cp.LocationOffset, cp.CommitTime);
txnCount++;
}
}
var txnLog = fsm.GetTransactionLog("c:\\brightstar\\twitteringtest");
var txnList = txnLog.GetTransactionList();
for(int i = 0 ; i<= txnCount;i++)
{
txnList.MoveNext();
var txnInfo = txnList.Current;
Console.WriteLine("Transaction #{0}: Start: {1}, Status: {2}, JobId: {3}", i, txnInfo.TransactionStartTime, txnInfo.TransactionStatus, txnInfo.JobId);
}
// Going back to last known good
store.RevertToCommitPoint(new CommitPoint(242472899 , 0, DateTime.UtcNow, Guid.Empty));
var toReplay = new List<ITransactionInfo>();
txnList = txnLog.GetTransactionList();
for(int i = 0; i < 10 ; i++)
{
txnList.MoveNext();
toReplay.Add(txnList.Current);
}
var storeWorker = new StoreWorker("c:\\brightstar","twitteringtest");
for(int i = 9; i >= 0; i--)
{
Console.WriteLine("Applying transaction : {0}", toReplay[i].JobId);
txnLog.GetTransactionData(toReplay[i].DataStartPosition);
var jobId = Guid.NewGuid();
var updateJob = new UpdateTransaction(jobId, null, storeWorker);
updateJob.ReadTransactionDataFromStream(txnLog.GetTransactionData(toReplay[i].DataStartPosition));
updateJob.Run();
var readStore = storeWorker.ReadStore as Store;
var resource = readStore.Resolve(1518601251);
Assert.IsNotNull(resource);
try
{
var query = StoreExtensions.ParseSparql(TestQuery);
using (var resultStream = new MemoryStream())
{
storeWorker.Query(query, SparqlResultsFormat.Xml, resultStream,
new[] {Constants.DefaultGraphUri});
}
Console.WriteLine("Query succeeded");
}
catch(Exception ex)
{
Console.WriteLine("Query failed: " + ex.Message);
Assert.Fail();
}
}
}
public void TestRecoverTransactionData()
{
// create a store
var sid = CreateStore();
// initialise and start the store worker
var storeWorker = new StoreWorker(Configuration.StoreLocation, sid);
storeWorker.Start();
// execute transactions
const string data = @"<http://www.networkedplanet.com/people/gra> <http://www.networkedplanet.com/types/worksfor> <http://www.networkedplanet.com/companies/np>";
var jobId = storeWorker.ProcessTransaction("", "", data, Constants.DefaultGraphUri, "nt");
JobExecutionStatus jobStatus = storeWorker.GetJobStatus(jobId.ToString());
while (jobStatus.JobStatus != JobStatus.CompletedOk)
{
Thread.Sleep(1000);
jobStatus = storeWorker.GetJobStatus(jobId.ToString());
}
var transactionLog = storeWorker.TransactionLog;
var transactionList = transactionLog.GetTransactionList();
var i = 0;
while (transactionList.MoveNext())
{
i++;
}
Assert.AreEqual(1, i);
// now get txn data
var txnList = storeWorker.TransactionLog.GetTransactionList();
txnList.MoveNext();
var tinfo = txnList.Current;
Assert.IsNotNull(tinfo);
Assert.AreEqual(TransactionType.UpdateTransaction, tinfo.TransactionType);
Assert.AreEqual(TransactionStatus.CompletedOk, tinfo.TransactionStatus);
Assert.IsTrue(tinfo.TransactionStartTime < DateTime.UtcNow);
var job = new UpdateTransaction(Guid.NewGuid(), storeWorker);
using (var tdStream = storeWorker.TransactionLog.GetTransactionData(tinfo.DataStartPosition))
{
job.ReadTransactionDataFromStream(tdStream);
}
Assert.IsNotNull(job);
Assert.AreEqual(data, job.InsertData);
}