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tAzureAdlsGen2Input Standard properties

These properties are used to configure tAzureAdlsGen2Input running in the Standard Job framework.

The Standard tAzureAdlsGen2Input 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.

Schema and Edit schema

A schema is a row description. It defines the number of fields (columns) to be processed and passed on to the next component. When you create a Spark Job, avoid the reserved word line when naming the fields.

  • Built-In: You create and store the schema locally for this component only.

  • Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs.

Click Edit schema to make changes to the schema.
Information noteNote: If you make changes, the schema automatically becomes built-in.
  • View schema: choose this option to view the schema only.

  • Change to built-in property: choose this option to change the schema to Built-in for local changes.

  • Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion. If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the Repository Content window.

Guess schema

Click this button to retrieve the schema from the data object specified.

Authentication method

Select one of the following authentication method from the drop-down list.

  • Shared key, which requires an account access key. See Manage a storage account for related information.
  • Shared Access Signature, which requires a shared access signature. See Constructing the Account SAS URI for related information.
  • Azure Active Directory, Select this option to use Azure Active Directory authentication when establishing the connection. See Azure AD Authentication for related information.
Information noteNote: The Azure Active Directory option is available only if you have installed the R2020-06 Studio Monthly update or a later one delivered by Talend. For more information, check with your administrator.

Account name

Enter the name of the Data Lake Storage account you need to access. Ensure that the administrator of the system has granted you the appropriate access permissions to this account.

Endpoint suffix

Enter the Azure Storage service endpoint.

The combination of the account name and the Azure Storage service endpoint forms the endpoint of the storage account.

Shared 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. To know how to get your key, read Manage a storage account.

This field is available if you select Shared key from Authentication method drop-down list.

SAS token

Enter your account SAS token. You can get the SAS token for each allowed service on the Microsoft Azure portal after generating SAS. The SAS token 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, read Constructing the Account SAS URI.

This field is available if you select Shared access signature from Authentication method drop-down list.

Check connection

Click this button to validate the connection parameters provided.

Filesystem

Enter the name of the target Blob container.

You can also click the ... button to the right of this field and select the desired Blob container from the list in the dialog box.

Blobs Path

Enter the path to the target blobs.

Format

Set the format for the incoming data. Currently, the following formats are supported: CSV, AVRO, JSON, and Parquet.

Field Delimiter

Set the field delimiter. You can select Semicolon, Comma, Tabulation, and Space from the drop-down list; you can also select Other and enter your own in the Custom field delimiter field.

Record Separator

Set the record separator. You can select LF, CR, and CRLF from the drop-down list; you can also select Other and enter your own in the Custom Record Separator field.

Text Enclosure Character

Enter the character used to enclose text.

Escape character

Enter the character of the row to be escaped.

Header

Select this check box to insert a header row to the data retrieved.

Information noteNote:
  • Select this option if the data to be retrieved has a header row. In this case, you need also to make sure that the column names in the schema are consistent with the column headers of the data.
  • Clear this option if the data to be retrieved does not have a header row. In this case, you need to name the columns in the schema as field0, field1, field2, and so on.

File Encoding

Select the file encoding from the drop-down list.

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

ERROR_MESSAGE

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

NB_LINE

The number of rows successfully processed. This is an After variable and it returns an integer.

Usage

Usage rule

This component is usually used as a start component of a Job or subJob and it always needs an output link.

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