public static async void Run([BlobTrigger(route, Connection = ConfigSettings.STORAGE_CONNECTIONSTRING_NAME)] CloudBlockBlob blockBlob, string name, ILogger log)
{
await blockBlob.FetchAttributesAsync();
log.LogInformation("[PENDING] Checking for required metadata on job entry...");
if (blockBlob.Metadata.ContainsKey(ConfigSettings.JOBID_METADATA_NAME) && blockBlob.Metadata.ContainsKey(ConfigSettings.IMAGE_CONVERSION_MODE_METADATA_NAME) && blockBlob.Metadata.ContainsKey(ConfigSettings.IMAGE_SOURCE_METADATA_NAME))
{
log.LogInformation("[SUCCESS] job entry contains required metadata");
string jobId = blockBlob.Metadata[ConfigSettings.JOBID_METADATA_NAME];
string imageConversionMode = blockBlob.Metadata[ConfigSettings.IMAGE_CONVERSION_MODE_METADATA_NAME];
string imageSource = blockBlob.Metadata[ConfigSettings.IMAGE_SOURCE_METADATA_NAME];
log.LogInformation("[PENDING] Connecting to jobs table...");
JobTable jobTable = new JobTable(log, ConfigSettings.IMAGEJOBS_PARTITIONKEY);
log.LogInformation("[SUCCESS] Connected to Jobs Table");
string imageResult = $"{Environment.GetEnvironmentVariable(ConfigSettings.STORAGE_DOMAIN_METADATA_NAME)}/{ConfigSettings.CONVERTED_IMAGES_CONTAINER_NAME}/{name}";
JobEntity successJobEntity = JobEntity.New(jobId, imageConversionMode, JobStatusCodes.CONVERT_SUCCESS, JobStatusMessages.CONVERT_SUCCESS, imageSource, imageResult);
log.LogInformation("[PENDING] Updating job entry with success status...");
await jobTable.UpdateJobEntityStatus(successJobEntity);
log.LogInformation("[SUCCESS] Job entry updated with success status");
}
else
{
log.LogError("The specified job does not contain the required metadata and cannot be updated.");
}
}
public static async void Run([BlobTrigger(route, Connection = ConfigSettings.STORAGE_CONNECTIONSTRING_NAME)] Stream myBlob, string name, ILogger log)
{
log.LogInformation("[PENDING] Connecting to blob storage...");
BlobStorage blobStorage = new BlobStorage();
log.LogInformation("[SUCCESS] Connected to blob storage");
string imageSourceURI = $"{Environment.GetEnvironmentVariable(ConfigSettings.STORAGE_DOMAIN_METADATA_NAME)}/{ConfigSettings.TO_SEPIA_CONTAINER_NAME}/{name}";
string jobId = Guid.NewGuid().ToString();
JobEntity initialJobEntity = JobEntity.New(jobId, ConversionModeNames.SEPIA, JobStatusCodes.IMAGE_OBTAINED, JobStatusMessages.IMAGE_OBTAINED, imageSourceURI, "");
log.LogInformation("[PENDING] Adding initial job entry to table...");
await Shared.UpdateJobTableWithStatus(log, initialJobEntity);
log.LogInformation("[SUCCESS] Initial job entry added to table");
string convertedBlobName = $"{Guid.NewGuid()}-{name}";
try
{
log.LogInformation("[PENDING] Applying sepia filter to image...");
MemoryStream convertedMemoryStream = ImageConverter.ConvertImageToSepia(myBlob);
log.LogInformation("[SUCCESS] Applied sepia filter to image");
JobEntity convertInProgressJobEntity = JobEntity.New(jobId, ConversionModeNames.SEPIA, JobStatusCodes.BEING_CONVERTED, JobStatusMessages.BEING_CONVERTED, imageSourceURI, "");
log.LogInformation("[PENDING] Updating job status to conversion-in-progress");
await Shared.UpdateJobTableWithStatus(log, convertInProgressJobEntity);
log.LogInformation("[SUCCESS] Job status updated to conversion-in-progress");
log.LogInformation("[PENDING] Uploading converted image to converted images container...");
blobStorage.UploadConvertedImage(initialJobEntity, convertedBlobName, convertedMemoryStream);
log.LogInformation("[SUCCESS] Converted image uploaded to converted images container");
}
catch (Exception e)
{
log.LogError("An error occured while converting the image");
try
{
log.LogInformation("[PENDING} Uploading original image to failed container...");
blobStorage.UploadFailedImage(initialJobEntity, convertedBlobName, myBlob);
log.LogInformation("[SUCCESS] Original image uploaded to failed container");
}
catch (Exception ex)
{
log.LogError("Failed to upload image to failed container");
}
}
}
