public bool CreateEventUpStream()
{
try
{
//EH Configuration
connectionString = ConfigurationLibrary.AzureNameSpaceConnectionString();
eventHubName = ConfigurationLibrary.GroupEventHubsName();
LogEngine.TraceInformation($"Start GrabCaster UpStream - Point Id {ConfigurationLibrary.PointId()} - Point name {ConfigurationLibrary.PointName()} - Channel Id {ConfigurationLibrary.ChannelId()} - Channel name {ConfigurationLibrary.ChannelName()} ");
var builder = new ServiceBusConnectionStringBuilder(connectionString)
{
TransportType =
TransportType.Amqp
};
eventHubClient = EventHubClient.CreateFromConnectionString(builder.ToString(), eventHubName);
return(true);
}
catch (Exception)
{
return(false);
}
}
public void PersistEventToStorage(byte[] messageBody, string messageId, string groupEventHubsStorageAccountName,
string groupEventHubsStorageAccountKey)
{
try
{
var storageAccountName = groupEventHubsStorageAccountName;
var storageAccountKey = groupEventHubsStorageAccountKey;
var connectionString =
$"DefaultEndpointsProtocol=https;AccountName={storageAccountName};AccountKey={storageAccountKey}";
var storageAccount = CloudStorageAccount.Parse(connectionString);
var blobClient = storageAccount.CreateCloudBlobClient();
// Retrieve a reference to a container.
var container = blobClient.GetContainerReference(ConfigurationLibrary.GroupEventHubsName());
// Create the container if it doesn't already exist.
container.CreateIfNotExists();
container.SetPermissions(
new BlobContainerPermissions {
PublicAccess = BlobContainerPublicAccessType.Blob
});
// Create the messageid reference
var blockBlob = container.GetBlockBlobReference(messageId);
blockBlob.UploadFromByteArray(messageBody, 0, messageBody.Length);
LogEngine.TraceInformation("Event persisted - Consistency Transaction Point created.");
}
catch (Exception ex)
{
LogEngine.TraceError($"Error in {MethodBase.GetCurrentMethod().Name} - Error {ex.Message}");
}
}
public void Run(MessageIngestor.SetEventActionEventEmbedded setEventActionEventEmbedded)
{
try
{
SetEventActionEventEmbedded = setEventActionEventEmbedded;
//Load message ingestor
MessageIngestor.Init(SetEventActionEventEmbedded);
// Assign the delegate
// Load vars
var eventHubConnectionString = ConfigurationLibrary.AzureNameSpaceConnectionString();
var eventHubName = ConfigurationLibrary.GroupEventHubsName();
LogEngine.TraceInformation(
$"Start GrabCaster DownStream - Point Id {ConfigurationLibrary.PointId()} - Point name {ConfigurationLibrary.PointName()} - Channel Id {ConfigurationLibrary.ChannelId()} - Channel name {ConfigurationLibrary.ChannelName()} ");
var builder = new ServiceBusConnectionStringBuilder(eventHubConnectionString)
{
TransportType =
TransportType.Amqp
};
//If not exit it create one, drop brachets because Azure rules
var eventHubConsumerGroup = string.Concat(ConfigurationLibrary.EngineName(), "_",
ConfigurationLibrary.ChannelId().Replace("{", "").Replace("}", "").Replace("-", ""));
var nsManager = NamespaceManager.CreateFromConnectionString(builder.ToString());
LogEngine.TraceInformation(
$"Start DirectRegisterEventReceiving. - Initializing Group Name {eventHubConsumerGroup}");
// Create Event Hubs
var eventHubClient = EventHubClient.CreateFromConnectionString(builder.ToString(), eventHubName);
// Create consumer
nsManager.CreateConsumerGroupIfNotExists(eventHubName, eventHubConsumerGroup);
var namespaceManager = NamespaceManager.CreateFromConnectionString(builder.ToString());
var ehDescription = namespaceManager.GetEventHub(eventHubName);
// Use the default consumer group
foreach (var partitionId in ehDescription.PartitionIds)
{
var myNewThread =
new Thread(() => ReceiveDirectFromPartition(eventHubClient, partitionId, eventHubConsumerGroup));
myNewThread.Start();
}
LogEngine.TraceInformation("After DirectRegisterEventReceiving Downstream running.");
}
catch (Exception ex)
{
LogEngine.TraceError(
$"Error in {MethodBase.GetCurrentMethod().Name} - Hint: Check if the firewall outbound port 5671 is opened. - Error {ex.Message}");
}
}
public byte[] PersistEventFromStorage(string messageId, string groupEventHubsStorageAccountName,
string groupEventHubsStorageAccountKey)
{
try
{
var storageAccountName = groupEventHubsStorageAccountName;
var storageAccountKey = groupEventHubsStorageAccountKey;
var connectionString =
$"DefaultEndpointsProtocol=https;AccountName={storageAccountName};AccountKey={storageAccountKey}";
var storageAccount = CloudStorageAccount.Parse(connectionString);
var blobClient = storageAccount.CreateCloudBlobClient();
// Retrieve a reference to a container.
var container = blobClient.GetContainerReference(ConfigurationLibrary.GroupEventHubsName());
// Create the container if it doesn't already exist.
container.CreateIfNotExists();
container.SetPermissions(
new BlobContainerPermissions {
PublicAccess = BlobContainerPublicAccessType.Blob
});
// Create the messageid reference
var blockBlob = container.GetBlockBlobReference(messageId);
blockBlob.FetchAttributes();
var msgByteLength = blockBlob.Properties.Length;
var msgContent = new byte[msgByteLength];
for (var i = 0; i < msgByteLength; i++)
{
msgContent[i] = 0x20;
}
blockBlob.DownloadToByteArray(msgContent, 0);
LogEngine.TraceInformation("Event persisted recovered - Consistency Transaction Point restored.");
return(msgContent);
}
catch (Exception ex)
{
LogEngine.TraceError($"Error in {MethodBase.GetCurrentMethod().Name} - Error {ex.Message}");
return(null);
}
}
