public PollingWatermark(PollingWatermarkEntity pollingWatermarkEntity)
{
SourceSystem = pollingWatermarkEntity.PartitionKey;
Entity = pollingWatermarkEntity.RowKey;
DateTime currentPollingDateTime = DateTime.Now.ToUniversalTime();
Watermark = pollingWatermarkEntity.Watermark;
NextWatermark = currentPollingDateTime;
}
public static async Task <HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
log.Info($"GetPollingWatermark Function is processing a request.");
try
{
// Get request body
PollingWatermark currentPollingWatermark = await req.Content.ReadAsAsync <PollingWatermark>();
// If required properties not provided correctly in the JSON body, return BadRequest
if (currentPollingWatermark.SourceSystem == null || currentPollingWatermark.Entity == null || currentPollingWatermark.NextWatermark == DateTime.MinValue)
{
return(req.CreateResponse(HttpStatusCode.BadRequest, "Invalid request body"));
}
//Retrieve the current PollingWatermark Entity based on the provided SourceSystem and Entity properties
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
CloudConfigurationManager.GetSetting("PollingWatermarkStorage"));
CloudTableClient tableClient = storageAccount.CreateCloudTableClient();
CloudTable table = tableClient.GetTableReference("PollingWatermark");
TableOperation retrieveOperation = TableOperation.Retrieve <PollingWatermarkEntity>(currentPollingWatermark.SourceSystem, currentPollingWatermark.Entity);
TableResult retrievedResult = table.Execute(retrieveOperation);
PollingWatermarkEntity pollingWatermarkToUpdate = (PollingWatermarkEntity)retrievedResult.Result;
if (pollingWatermarkToUpdate != null)
{
// Update the Entity
pollingWatermarkToUpdate.Watermark = currentPollingWatermark.NextWatermark;
TableOperation updateOperation = TableOperation.Replace(pollingWatermarkToUpdate);
table.Execute(updateOperation);
return(req.CreateResponse(HttpStatusCode.OK));
}
else
{
// If Polling Watermark to update for the provided SourceSystem and Entity is not found, return NotFound
return(req.CreateResponse(HttpStatusCode.NotFound, string.Format("Polling watermark to update not found. SourceSystem: '{0}', Entity: '{1}'.", currentPollingWatermark.SourceSystem, currentPollingWatermark.Entity)));
}
}
catch (Exception ex)
{
return(req.CreateResponse(HttpStatusCode.InternalServerError));
}
}
