public void ProcessRequest(HttpContext context)
{
var storageAccount = CloudStorageAccount.Parse(RoleEnvironment.GetConfigurationSettingValue("StorageConnectionString"));
CloudTableClient tableStorage = storageAccount.CreateCloudTableClient();
string tableName = "photos";
// create container and queue if not created
StorageRetryPolicy.ExecuteAction(() =>
{
tableStorage.CreateTableIfNotExist(tableName);
});
// retrieve all rows and return in JSON format
var tableContext = tableStorage.GetDataServiceContext();
var query = (from photo in tableContext.CreateQuery <Photo>(tableName)
select photo).AsTableServiceQuery <Photo>();
var items = query.ToList();
var serializer = new JavaScriptSerializer();
context.Response.ContentType = "application/json";
context.Response.Write(serializer.Serialize(items));
}
public void ProcessRequest(HttpContext context)
{
try
{
var storageAccount = CloudStorageAccount.Parse(RoleEnvironment.GetConfigurationSettingValue("StorageConnectionString"));
CloudBlobClient blobStorage = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobStorage.GetContainerReference("photos");
CloudQueueClient queueStorage = storageAccount.CreateCloudQueueClient();
CloudQueue queue = queueStorage.GetQueueReference("resizer");
CloudTableClient tableStorage = storageAccount.CreateCloudTableClient();
string tableName = "photos";
// create container and queue if not created
StorageRetryPolicy.ExecuteAction(() =>
{
container.CreateIfNotExist();
var permissions = container.GetPermissions();
permissions.PublicAccess = BlobContainerPublicAccessType.Container;
container.SetPermissions(permissions);
queue.CreateIfNotExist();
tableStorage.CreateTableIfNotExist(tableName);
});
string fileName = context.Request.QueryString["fileName"];
int fileSize = Int32.Parse(context.Request.QueryString["fileSize"]);
// insert a row for this image into the table
Photo photo = new Photo()
{
PartitionKey = fileName[0].ToString(),
RowKey = fileName,
Timestamp = DateTime.Now,
FileSize = fileSize,
Status = (int)FileStatus.Uploading,
BlobUrl = string.Empty
};
var tableContext = tableStorage.GetDataServiceContext();
tableContext.AddObject(tableName, photo);
tableContext.SaveChangesWithRetries();
// create a blob with the image file name and upload file to blob
var imageBlob = container.GetBlockBlobReference(fileName);
imageBlob.Properties.ContentType = context.Request.QueryString["contentType"];
imageBlob.UploadFromStream(context.Request.InputStream);
// update entity as being processed
photo.Status = (int)FileStatus.Processing;
photo.BlobUrl = imageBlob.Uri.AbsoluteUri;
tableContext.UpdateObject(photo);
tableContext.SaveChangesWithRetries();
// add a new message to the queue
queue.AddMessage(new CloudQueueMessage(System.Text.Encoding.UTF8.GetBytes(imageBlob.Uri.AbsoluteUri)));
context.Response.ContentType = "text/plain";
context.Response.Write("All good.");
}
catch (Exception ex)
{
context.Response.ContentType = "text/plain";
context.Response.Write("Error: " + ex.ToString());
}
}
