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RabbitMQ Connector

The RabbitMQ connector can be used to seamlessly connect to RabbitMQ (http://rabbitmq.com). Robust messaging for applications. Open source and commercially supported.

Thanks to Rom van Arendonk for helping finish this module. Please contribute on GitHub

This module supports two patterns:

  • Publish / Subscribe (one publisher, many subscribers, each message is received by all subscribers)

  • Work queues (one publisher, many subscribers, each message is processed only once)

Dependencies

Installation

  • You can acquire an account at cloudamqp.com. They deliver hosted RabbitMQ instances and also offer a free plan too.

  • Import the module RabbitMQ connector in your project (by downloading and exporting the module from this project, see https://github.com/appronto/RabbitMQconnector/releases)

  • You need to add the MxModelReflection module from the appstore

  • Add RMQConfiguration_Overview to your navigation

  • Use the provided actions in Objects/subfolder

  • Do not use microflows in /private folders

  • Do not use Java actions

  • Optionally, you can add the provided ASU action in /Resources to your after startup actions to start listening to all listening configurations

Configuration options

  • Durable exchange: exchange survives reboot of the server

  • Persistent messages: messages are stored on hard disk (and hence, survive a reboot of the server)

  • Confirm messages: exchange must acknowledge the messages. If messages are not acknowledged, an error is thrown (and should be handled by custom logic)

  • Auto delete exchange: if the server can delete the exchange when it is not in use

  • Number of concurrent messages: number of messages that are delivered before old ones must be handled. Note that this does not enable concurrent processing: even if more than one message is received, they are handled sequentially.

Remarks

  • Avoid fetching large amounts of data as it can lead to memory issues because all the ResultRow data is being loaded into memory at once.
  • Module is only available via Github.

License

Licensed under the Apache license.

Developers notes

  • Open the RabbitMQConnector.mpr in the Mendix Modeler.
  • Use Deploy for Eclipse option (F6) and you can then import this module as an Eclipse project to the Eclipse IDE.

Version history

0.1 first functions for RabbitMQ implemented