/// <summary>
/// Gets called by the provider to notify this subscriber about a new item retrieved from the queue.
/// </summary>
/// <param name="item">The queue item retrieved from the source queue.</param>
public void OnNext(XDocument item)
{
Guard.ArgumentNotNull(item, "item");
var callToken = TraceManager.WorkerRoleComponent.TraceIn(item.Root.Name);
try
{
string transformName = ResolveTransformName(item);
if (!String.IsNullOrEmpty(transformName))
{
XDocument transformedDoc = this.transformService.ApplyTransform(transformName, item);
using (ICloudQueueStorage outputQueue = this.storageProviderExtension.GetQueueStorage(this.configSettingsExtension.Settings.CloudStorageAccount))
{
outputQueue.Put <XDocument>(this.configSettingsExtension.Settings.OutputQueue, transformedDoc);
}
}
else
{
throw new CloudApplicationException(String.Format(CultureInfo.InstalledUICulture, ExceptionMessages.UnableToResolveTransformName, item.Root.Name, this.configSettingsExtension.Settings.HandlingPolicyName));
}
}
finally
{
TraceManager.WorkerRoleComponent.TraceOut(callToken);
}
}
public void PutLargeXmlMessage()
{
string testFileName = Path.Combine(testMessageFolder, "InventoryReport_2.xml");
using (ICloudBlobStorage blobStorage = GetCloudBlobStorage())
using (ICloudQueueStorage queueStorage = GetCloudQueueStorage())
{
LargeQueueMessageInfo largeMsgInfo = LargeQueueMessageInfo.Create(testQueueName);
XDocument testMessage = XDocument.Load(testFileName);
queueStorage.Clear(testQueueName);
queueStorage.Put <XDocument>(testQueueName, testMessage);
int blobCount = blobStorage.GetCount(largeMsgInfo.ContainerName);
XDocument msgFromQueue = queueStorage.Get <XDocument>(testQueueName);
Assert.IsNotNull(msgFromQueue, "Unable to find message on the queue");
Assert.IsTrue(String.Compare(testMessage.ToString(), msgFromQueue.ToString(), false) == 0, "Message content is different");
Assert.IsTrue(blobCount == 1, "Blob storage must contain the message data");
bool deleted = queueStorage.Delete <XDocument>(msgFromQueue);
int queueLength = queueStorage.GetCount(testQueueName);
Assert.IsTrue(deleted, "Message has not been deleted by some reasons");
Assert.IsTrue(queueLength == 0, "Queue is not empty by some reasons");
blobCount = blobStorage.GetCount(largeMsgInfo.ContainerName);
Assert.IsTrue(blobCount == 0, "Blob storage is not empty by some reasons");
}
}
private void DequeueXmlDataTaskMain(DequeueXmlDataTaskState state)
{
Guard.ArgumentNotNull(state, "state");
using (ICloudQueueStorage workItemQueue = state.StorageProvider.GetQueueStorage(state.Settings.CloudStorageAccount))
using (SqlAzurePersistenceQueue dbQueue = new SqlAzurePersistenceQueue())
{
dbQueue.Open(WellKnownDatabaseName.PersistenceQueue);
using (XmlReader xmlReader = dbQueue.DequeueXmlData(state.QueueItemInfo.QueueItemId, state.HeaderSegments, state.BodySegments, state.FooterSegments, state.NamespaceManager))
{
if (xmlReader != null)
{
XDocument batch = XDocument.Load(xmlReader);
// Check for presence of any items in the batch.
bool batchFound = (batch.XPathSelectElement(state.ItemDetectionXPath) != null);
if (batchFound)
{
workItemQueue.Put <XDocument>(state.Settings.DestinationQueue, batch);
}
}
}
}
}
public void PutLargeBinaryMessage()
{
int largeMessageSize = 2 * 1024 * 1024;
var largeMessage = new byte[largeMessageSize];
randGenerator.NextBytes(largeMessage);
using (ICloudBlobStorage blobStorage = GetCloudBlobStorage())
using (ICloudQueueStorage queueStorage = GetCloudQueueStorage())
{
LargeQueueMessageInfo largeMsgInfo = LargeQueueMessageInfo.Create(testQueueName);
queueStorage.Clear(testQueueName);
queueStorage.Put <byte[]>(testQueueName, largeMessage);
int blobCount = blobStorage.GetCount(largeMsgInfo.ContainerName);
byte[] msgFromQueue = queueStorage.Get <byte[]>(testQueueName);
Assert.IsNotNull(msgFromQueue, "Unable to find message on the queue");
var matchedBytes = msgFromQueue.Where((value, index) =>
{
return(largeMessage[index] == value);
});
Assert.IsTrue(matchedBytes.Count() == largeMessageSize, "Message content is different");
Assert.IsTrue(blobCount == 1, "Blob storage must contain the message data");
bool deleted = queueStorage.Delete <byte[]>(msgFromQueue);
int queueLength = queueStorage.GetCount(testQueueName);
Assert.IsTrue(deleted, "Message has not been deleted by some reasons");
Assert.IsTrue(queueLength == 0, "Queue is not empty by some reasons");
blobCount = blobStorage.GetCount(largeMsgInfo.ContainerName);
Assert.IsTrue(blobCount == 0, "Blob storage is not empty by some reasons");
}
}
