public async Task StoreAsync(IDocumentRecord documentRecord)
{
await TryWithAwaitInCatch.ExecuteAndHandleErrorAsync(
async () =>
{
await ResilientSessionContainer.EstablishSessionAsync();
await ResilientSessionContainer.ResilientSession.UpsertFlattenedDocumentAsync(documentRecord);
},
async (ex) => ResilientSessionContainer.HandleCassandraException<Task>(ex));
}
public async Task <bool> UpsertFlattenedDocumentAsync(IDocumentRecord documentRecord,
CancellationToken cancellationToken = default(CancellationToken))
{
try
{
var list = new List <IDocumentRecord> {
documentRecord
};
return(await UpsertManyFlattenedDocumentAsync(list, cancellationToken));
}
catch (Exception e)
{
// only here to catch during a debug unit test.
throw;
}
}
public async Task <IDocumentRecord> FindFlattenedDocumentByTypeAndVersionAsync(string type, string version,
CancellationToken cancellationToken = default(CancellationToken))
{
try
{
var session = CassandraSession;
IMapper mapper = new Mapper(session);
cancellationToken.ThrowIfCancellationRequested();
var record =
await
mapper.SingleAsync <DocumentRecord>(FindFlattenedDocumentByTypeAndVersion, type, version);
IDocumentRecord ch = record;
return(ch);
}
catch (Exception e)
{
// throws an exception when nothing is found,
// Indication of missing element is only in the message, which can't be trusted to be stable.
// need to file a defect against datastax to get better exception information
return(null);
}
}
