tAzureStorageGet Standard properties

Azure Storage Blob

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Talend Documentation Team
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6.5
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Design and Development > Third-party systems > Cloud storages > Azure components > Azure Storage Blob components
Data Quality and Preparation > Third-party systems > Cloud storages > Azure components > Azure Storage Blob components
Data Governance > Third-party systems > Cloud storages > Azure components > Azure Storage Blob components
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Talend Studio

These properties are used to configure tAzureStorageGet running in the Standard Job framework.

The Standard tAzureStorageGet component belongs to the Cloud family.

The component in this framework is available in all Talend products.

Basic settings

Property Type

Select the way the connection details will be set.

  • Built-In: The connection details will be set locally for this component. You need to specify the values for all related connection properties manually.

  • Repository: The connection details stored centrally in Repository > Metadata will be reused by this component. You need to click the [...] button next to it and in the pop-up Repository Content dialog box, select the connection details to be reused, and all related connection properties will be automatically filled in.

This property is not available when other connection component is selected from the Connection Component drop-down list.

Connection Component

Select the component whose connection details will be used to set up the connection to Azure storage from the drop-down list.

Account Name

Enter the name of the storage account you need to access. A storage account name can be found in the Storage accounts dashboard of the Microsoft Azure Storage system to be used. Ensure that the administrator of the system has granted you the appropriate access permissions to this storage account.

Account Key

Enter the key associated with the storage account you need to access. Two keys are available for each account and by default, either of them can be used for this access.

Protocol

Select the protocol for this connection to be created.

Use Azure Shared Access Signature

Select this check box to use a shared access signature (SAS) to access the storage resources without need for the account key. For more information, see Using Shared Access Signatures (SAS).

In the Azure Shared Access Signature field displayed, enter your account SAS URL between double quotation marks. You can get the SAS URL for each allowed service on Microsoft Azure portal after generating SAS. The SAS URL format is https://<$storagename>.<$service>.core.windows.net/<$sastoken>, where <$storagename> is the storage account name, <$service> is the allowed service name (blob, file, queue or table), and <$sastoken> is the SAS token value. For more information, see Constructing the Account SAS URI.

Note that the SAS has valid period, you can set the start time at which the SAS becomes valid and the expiry time after which the SAS is no longer valid when generating it, and you need to make sure your SAS is still valid when running your Job.

Container

Enter the name of the container you need to retrieve blobs from.

Local folder

Enter the path, or browse to the folder in which you need to store the retrieved blobs.

Blobs

Complete this table to select the blobs to be retrieved. The parameters to be provided are:

  • Prefix: enter the common prefix of the names of the blobs you need to retrieve. This prefix allows you to filter the blobs which have the specified prefix in their names in the given container.

    A blob name contains the virtual hierarchy of the blob itself. This hierarchy is a virtual path to that blob and is relative to the container where that blob is stored. For example, in a container named photos, the name of a photo blob might be 2014/US/Oakland/Talend.jpg.

    For this reason, when you define a prefix, you are actually designating a directory level as the blob filter, for example, 2014/ or 2014/US/.

    If you want to select the blobs stored directly beneath the container level, that is to say, the blobs without virtual path in their names, remove quotation marks and enter null.

  • Include sub-directories: select this check box to retrieve all of the sub-folders and the blobs in those folders beneath the designated directory level in the Blob prefix column. If you leave this check box clear, tAzureStorageGet returns only the blobs directly beneath that directory level.

  • Create parent directories: select this check box to replicate the virtual directory of the retrieved blobs in the local folder.

    Note that if you leave this check box clear, there must be the same directory in the local folder as the retrieved blobs have in the container; otherwise, those blobs cannot be retrieved.

Die on error

Select the check box to stop the execution of the Job when an error occurs.

Clear the check box to skip any rows on error and complete the process for error-free rows. When errors are skipped, you can collect the rows on error using a Row > Reject link.

Advanced settings

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at the Job level as well as at each component level.

Global Variables

CONTAINER

The name of the blob container. This is an After variable and it returns a string.

LOCAL_FOLDER

The local directory used in this component. This is an After variable and it returns a string.

ERROR_MESSAGE

The error message generated by the component when an error occurs. This is an After variable and it returns a string.

Usage

Usage rule

This component can be used as a standalone component of a Job or Subjob.

Prerequisites

Knowledge about Microsoft Azure Storage is required.