Creating RabbitMQ Input Data Source

The RabbitMQ connector allows connection to RabbitMQ’s message bus on a real-time streaming basis. Specifically, the connector allows Panopticon Streams to subscribe to XML, JSON, Text or FIX based messages that are published on particular topics.

In the New Data Source page, select Input > RabbitMQ in the Connector drop-down list.

Enter the connection details including:

Property	Description
Broker	The location of the message broker.
User Id	The user Id that will be used to connect to RabbitMQ.
Password	The password that will be used to connect to RabbitMQ.

Select any of the following Exchange Types:

Exchange Type	Description
Default	A direct exchange with no name that is pre-declared by the broker. Selecting this exchange type disables the Exchange section (Exchange and Routing Key properties).
Fanout	Broadcasts all of the messages it receives to all of the queues it knows and the routing key is ignored (the Routing Key field is disabled).
Direct	Delivers messages to queues based on a message routing key. It is ideal for the unicast routing of messages, although it can be used for multicast routing as well.
Topic	A message sent with a particular routing key will be delivered to all of the queues that are bound with a matching binding key.
Headers	Exchanges routed based on arguments containing headers and optional values.

Depending on the selected Exchange Type, select or define the following:

Exchange Type Property	Description
Exchange	Name of the exchange.
Durable	Enable so the exchange can survive a broker restart.
Auto Delete	Enable so the exchange is deleted when the last queue is unbound from it.
Routing Key	The routing key used to deliver messages to queues.
Headers	This field is only available when the message type is Header. Binding a queue to a Headers exchange is possible using more than one header for matching. Setting x-match to any, means just one matching value is sufficient. Setting it to all means that all values must match. Default is x-match=all.

Select the Explicit Queue checkbox and enter the custom queue name. Then enter or enable the following properties:

Queue Property	Description
Porperties	The custom queue property.
Durable	Enable so the queue can survive a broker restart.
Auto Delete	Enable so the queue that had the least consumer will be deleted when that connection closes.

Select the Message Type.
Select either the period (.) or comma (,) as the Decimal Separator.
NOTE: Prepend 'default:' for the elements falling under default namespace.
Click to the fetch the schema based on the connection details. Consequently, the list of
columns with the data type found from inspecting the first ‘n’ rows of the input data source is populated and the Save button is enabled.
You can also opt to load or save a copy of the column definition.

You can also opt to click

to add columns to the RabbitMQ connection that represent sections of the message. Then enter or select:

Property	Description
Name	The column name of the source schema.
Fix Tag/Json Path/Text Column Index/Xpath	The Fix Tag/Json Path/Text Column Index/Xpath of the source schema.
Type	The data type of the column. Can be a Text, Numeric, or Time.
Date Format	The format when the data type is Time. NOTE: To parse and format times with higher than millisecond precision, the format string needs to end with a period followed by sequence of upper case S. There can be no additional characters following them. For example: yyyy-MM-dd HH:mm:ss.SSSSSS
Filter	Defined parameters that can be used as filter. Only available for JSON, Text, and XML message types.
Enabled	Determines whether the message field should be processed.

To delete a column, check its or all the column entries, check the topmost , then click .

Define the Real-time Settings.
Click . The new data source is added in the Data Sources list.

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