/// <summary>
/// Performs the LSM operation on the source shard.
/// </summary>
/// <param name="ts">Transaction scope.</param>
/// <returns>Result of the operation.</returns>
public override IStoreResults DoLocalSourceExecute(IStoreTransactionScope ts)
{
return(ts.ExecuteOperation(
StoreOperationRequestBuilder.SpBulkOperationShardMappingsLocal,
StoreOperationRequestBuilder.ReplaceShardMappingsLocal(
this.Id,
false,
_shardMap,
_mappingsSource.Select(m => m.Item1).ToArray(),
_mappingsTarget.Select(m => m.Item1).ToArray())));
}
/// <summary>
/// Execute the operation against LSM in the current transaction scope.
/// </summary>
/// <param name="ts">Transaction scope.</param>
/// <returns>
/// Results of the operation.
/// </returns>
public override IStoreResults DoLocalExecute(IStoreTransactionScope ts)
{
IEnumerable <IStoreMapping> mappingsToRemove = this.GetMappingsToPurge(ts);
return(ts.ExecuteOperation(
StoreOperationRequestBuilder.SpBulkOperationShardMappingsLocal,
StoreOperationRequestBuilder.ReplaceShardMappingsLocal(
Guid.NewGuid(), // Create a new Guid so that this operation forces over-writes.
false,
_shardMap,
mappingsToRemove.ToArray(),
_mappingsToAdd.ToArray())));
}
/// <summary>
/// Performs the undo of LSM operation on the source shard.
/// </summary>
/// <param name="ts">Transaction scope.</param>
/// <returns>Result of the operation.</returns>
public override IStoreResults UndoLocalSourceExecute(IStoreTransactionScope ts)
{
DefaultStoreShard dssOriginal = new DefaultStoreShard(
_mappingsSource[0].Item1.StoreShard.Id,
this.OriginalShardVersionAdds,
_mappingsSource[0].Item1.ShardMapId,
_mappingsSource[0].Item1.StoreShard.Location,
_mappingsSource[0].Item1.StoreShard.Status);
DefaultStoreMapping dsmSource = new DefaultStoreMapping(
_mappingsSource[0].Item1.Id,
_mappingsSource[0].Item1.ShardMapId,
dssOriginal,
_mappingsSource[0].Item1.MinValue,
_mappingsSource[0].Item1.MaxValue,
_mappingsSource[0].Item1.Status,
_mappingsSource[0].Item2);
DefaultStoreMapping dsmTarget = new DefaultStoreMapping(
_mappingsTarget[0].Item1.Id,
_mappingsTarget[0].Item1.ShardMapId,
dssOriginal,
_mappingsTarget[0].Item1.MinValue,
_mappingsTarget[0].Item1.MaxValue,
_mappingsTarget[0].Item1.Status,
_mappingsTarget[0].Item2);
IStoreMapping[] ms = new[] { dsmSource };
IStoreMapping[] mt = new[] { dsmTarget };
return(ts.ExecuteOperation(
StoreOperationRequestBuilder.SpBulkOperationShardMappingsLocal,
StoreOperationRequestBuilder.ReplaceShardMappingsLocal(
this.Id,
true,
_shardMap,
mt.Concat(_mappingsTarget.Skip(1).Select(m => m.Item1)).ToArray(),
ms.Concat(_mappingsSource.Skip(1).Select(m => m.Item1)).ToArray())));
}
