AzureServiceBusConnector

Input

This transformer accepts any feature.

Output

The output of this transformer will vary depending on the action performed. Message data and metadata are presented as feature attributes.

After a Receive from Queue action, output features represent messages received from an Azure Service Bus Queue.
After a Receive from Subscription action, output features represent messages received from an Azure Service Bus Subscription.

Initiator

The incoming feature is output through this port.

Features that cause the operation to fail are output through this port. An fme_rejection_code attribute, having the value ERROR_DURING_PROCESSING, will be added, along with a more descriptive fme_rejection_message attribute which contains more specific details as to the reason for the failure.

Note If a feature comes in to the AzureServiceBusConnector already having a value for fme_rejection_code, this value will be removed.

Rejected Feature Handling: can be set to either terminate the translation or continue running when it encounters a rejected feature. This setting is available both as a default FME option and as a workspace parameter.

Authentication

Credential Source

Required for authentication. Using a web connection integrates best with FME, but in some cases, you may wish to use one of the other sources.

Web Connection - use an Azure Service Bus web connection stored in the FME web connections database
Embedded - A Service Bus connection string
Default Azure Credential - Obtain credentials from Microsoft Entra ID, Managed Identity, or Azure CLI.

Account

Available when Credential Source is Web Connection. To create an Azure Service Bus connection, click the 'Account' drop-down box and select 'Add Web Connection...'.

The connection can then be managed via Tools -> FME Options... -> Web Connections.

Namespace

Available when Credential Source is Default Azure Credential.

This is the Service Bus Namespace containing Queues or Topics. The value is typically a hostname under servicebus.windows.net.

Embedded Credentials

Service Bus Connection String

Available when Credential Source is Embedded. The connection string is found in the Azure Portal Service Bus Namespace under Shared Access Policies.

Request

Action

The type of operation to perform. Choices are:

Receive from Queue
Receive from Subscription
Send to Queue
Send to Topic

Event Hubs

The event hub to connect to.

Parameters - Receive from Queue Action

Receive from Queue Options

Receive Mode

Two message receiving options are available:

Stream: The connector continues to receive messages indefinitely. The translation needs to be terminated in order to stop reception.
Batch: Only a given number of messages are received before the connection is closed.

Delete on Receive

If Yes, deletes the message from the queue upon receiving.

If No, the message is retrieved but stays in the queue. The message will be available to receive after the lockout period.

Batch Size

In Batch mode, specifies the number of messages to read per batch. Default is 1.

Parameters - Receive from Subscription Action

Receive from Subscription Options

Receive Mode

Two message receiving options are available:

Stream: The connector continues to receive messages indefinitely. The translation needs to be terminated in order to stop reception.
Batch: Only a given number of messages are received before the connection is closed.

Delete on Receive

If Yes, deletes the message from the subscription upon receiving.

If No, the message is retrieved but stays in the subscription. The message will be available to receive after the lockout period.

Batch Size

In Batch mode, specifies the number of messages to read per batch. Default is 1.

Parameters - Send to Queue Action

Send to Queue Options

Queue	The Queue to send messages to.
Create Queue	If Yes, create the queue with the given name. A message will be logged if the queue already exists. If No, use the available queue.
Payload	The content of the message. This is often JSON, but can be any string, binary, integer or floating-point value.
Message Properties	Custom settable message properties. Any key value can be used, however the following keys are mapped to the respective attributes on the message. session_id message_id content_type correlation_id to reply_to reply_to_session_id subject scheduled_enqueue_time_utc time_to_live partition_key

Parameters - Send to Topic Action

Send to Topic Options

Topic	The Topic to send messages to.
Create Topic	If Yes, create the topic with the given name. A message will be logged if the queue already exists. If No, use the available topic .
Payload	The content of the message. This is often JSON, but can be any string, binary, integer or floating-point value.
Message Properties	Custom settable message properties. Any key value can be used, however the following keys are mapped to the respective attributes on the message. session_id message_id content_type correlation_id to reply_to reply_to_session_id subject scheduled_enqueue_time_utc time_to_live partition_key

Parameters - Count Messages Action

Count Messages Options

Resource

The resource to count available messages. Either Queue or Subscription.

Output Attributes

The following attributes can be selected for inclusion on the output features. Each output feature represents a message that was either sent or received.

_payload	The message payload. UTF-8 string if possible to decode, otherwise binary or numeric.
_properties	A key, value pair of message properties.
_content_type	The settable content type of the message.
_correlation_id	The settable correlation id of the message.
_enqueued_sequence_number	The position of the message in the queue/subscription.
_enqueued_time	The FME timestamp of when a message was added to the queue/subscription.
_expires_at	The FME timestamp when the message expires.
_lock_tocken	A uuid used to indicate the message has been received but not completed or deleted. It prevents other receivers from receiving the message
_locked_until	The FME timestamp when the message will be unlocked so it can be received again.
_message_id	The settable id of a message.
_partition_key	The key of the partition the message is in.
_reply_to	The settable reply to of a message.
_sequence_number	The sequence number of a message.
_subject	The settable subject of a message.
_time_to_live	The FME timestamp of how long the message will stay in the queue/subscription.
_to	The settable to of a message.

How to Set Parameter Values

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters.

Using the Text Editor

The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.

Text Editor

Using the Arithmetic Editor

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

Expressions and strings can include a number of functions, characters, parameters, and more.

When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Creating and Modifying User Parameters	Create your own editable parameters.

Dialog Options - Tables

Table Tools

Transformers with table-style parameters have additional tools for populating and manipulating values.

Row Reordering

Enabled once you have clicked on a row item. Choices include:

Add a row
Remove a row
Move current row up one
Move current row down one
Move current row to top
Move current row to bottom

Cut, Copy, and Paste

Enabled once you have clicked on a row item. Choices include:

Cut a row - delete and copy to clipboard
Copy a row to the clipboard
Paste a row from the clipboard

Cut, copy, and paste may be used within a transformer, or between transformers.

Filter

Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output.

Import

Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.

Reset/Refresh

Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers.

Note: Not all tools are available in all transformers.

Processing Behavior	Feature-Based
Feature Holding	No
Dependencies	Microsoft Azure Account with the Service Bus Service
Aliases
History	Released FME 2019.2

AzureServiceBusConnector

Typical Uses

How does it work?

Configuration

Input Ports

Output Ports

Parameters

Editing Transformer Parameters

Reference

FME Community