/// <summary>
/// Finds exisiting entities for the batch
/// </summary>
protected List <VersionedTableEntity> FindExistingVersions(IList <T> batch, string partitionKey)
{
string filter = string.Empty;
// Add Entities RowKey
for (int i = 0; i < batch.Count; ++i)
{
if (i > 0)
{
filter += " or ";
}
filter += TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.Equal, batch[i].RowKey);
}
// Filter by Partition Key
filter =
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, partitionKey),
TableOperators.And, filter);
// Read only Version column along with PartitionKey and RowKey
List <VersionedTableEntity> entities = Table
.ReadEntities <VersionedTableEntity>(new List <string> {
VersionColumn
}, filter)
.ToList();
return(entities);
}
public void BulkOfEntitiesConsistent()
{
using (var dl = new DisposableList())
{
// create the source table
var sourceTableWrapper = new TableWrapper(TestHelpers.GenUnique(TestConfig.TableName), TestConfig.PrimaryStorageAccount, true);
dl.Add(sourceTableWrapper.Delete);
// initialize the target table and attach it to the disposable container
var targetTable = new TableWrapper(TestHelpers.GenUnique(TestConfig.TableName), TestConfig.SecondaryStorageAccount, true);
dl.Add(targetTable.Delete);
var tableParamsResolver = new InMemoryTargetTableResolver();
tableParamsResolver.Add(TestHelpers.TableKey, targetTable);
// create gateway blob storage
var gateBlob = new InMemoryGatewayBlobStore();
// create a gateway queue
var gateQueue = new QueueWrapper(TestHelpers.GenUnique("gateq"), TestConfig.GatewayStorageAccount);
var gateQueueWriter = new GatewayQueueWriter(gateQueue, gateBlob);
var sourceTable = new SourceTable <StarEntity>(sourceTableWrapper, gateQueueWriter, TestHelpers.TableKey);
// 100 entities to satisfy TableStorage's batch requirements
var entities = TestHelpers.CreateStarEntities(100);
sourceTable.Write(entities);
// Now verify that the entities were synced to the secondary table storage
TableGatewayQueueProcessor gateQueueProcessor = new TableGatewayQueueProcessor(
new GatewayQueueReader(gateQueue, gateBlob),
tableParamsResolver
);
bool result = gateQueueProcessor.ProcessNext();
Assert.IsTrue(result);
var targetEntities = targetTable.ReadEntities <StarEntity>()
.ToList();
Assert.AreEqual(entities.Count, targetEntities.Count);
foreach (var entity in entities)
{
TestHelpers.AssertEqualStars(
entity,
targetEntities.First(x => x.RowKey == entity.RowKey)
);
}
}
}