Habari Client libraries 2021.06 for Apache ActiveMQ, Eclipse GlassFish and RabbitMQ released

[mjustin 23]

Habarisoft released new versions of its Object Pascal STOMP client libraries for integration with popular open source message brokers.

• Habari Client for ActiveMQ 6.10 - tested with Apache ActiveMQ 5.16.2
• Habari Client for Artemis 6.10 - tested with ActiveMQ Artemis 2.17.0
• Habari Client for OpenMQ 6.10 - tested with Eclipse GlassFish 6.0
• Habari Client for RabbitMQ 6.10 - tested with RabbitMQ 3.8.17

Release notes can be found at: https://www.habarisoft.com/release_notes.html

Message Transformation API

• Added a check that the map message transformation ID and the object message transformation ID are not equal
• Removed unit tests for old (deprecated) message transformation API
• Added unit test for new message transformation API, using MQContext API (which has been introduced in version 6.0)
• Added a compiler warning which appears when the old (deprecated) message transformation API is enabled
• Implement interface IMessageTransformerSupport in class TBTMQContext when the old (deprecated) message transformation API is enabled
•  Moved message transformation IDs for the transformation API to the broker-specific unit BTBrokerConst

Other

• Removed experimental TCP keep-alive feature, instead the STOMP heart-beating may be used
• Improved handling of incoming heart-beat (EOL bytes)
• Removed a check for incoming heart-beats when no heart-beats are expected, this caused higher timeout times for Receive(Integer) method calls

Further resources and demo applications

Home page: https://www.habarisoft.com/

About Habari Client libraries

Habari Client libraries enable Object Pascal applications to take advantage of message broker / message queue technology - which is distributed, loosely coupled, reliable and asynchronous - to build integrated systems, using peer-to-peer and publish-subscribe communication models.

 

 

Edited June 27, 2021 by mjustin

[Lars Fosdal 1793]

Any chance of adding IBM MQ to the list of MQs?
See also: https://developer.ibm.com/articles/mq-downloads/

[mjustin 23]

On 6/28/2021 at 7:39 AM, Lars Fosdal said:

Any chance of adding IBM MQ to the list of MQs?
See also: https://developer.ibm.com/articles/mq-downloads/

Thank you for your suggestion, IBM MQ however does not contain a Stomp client connector, which is required for the Habari Client libraries. The linked page shows that other options exists, some of them might be usable from Delphi/Free Pascal.

[Lars Fosdal 1793]

13 hours ago, mjustin said:

Thank you for your suggestion, IBM MQ however does not contain a Stomp client connector, which is required for the Habari Client libraries. The linked page shows that other options exists, some of them might be usable from Delphi/Free Pascal.

Have you considered supporting AMQP as an option to STOMP?

[mjustin 23]

9 hours ago, Lars Fosdal said:

Have you considered supporting AMQP as an option to STOMP?

The specification document for AMQP 1.0 is 113 pages long, and there are incompatible versions ("1.0" vs "0-9-1") used by major message brokers.

I am happy with the feature set of STOMP, it even allows to use broker-specific extensions, beyond the core protocol specification.