An article by Thomas Beyer (also available in German language) gives a short introduction into popular messaging solutions which are available as free open source projects. "Newer architectures and the standardized AMQP protocol have led to a flood of message brokers. All brokers take claim to be fast, robust and reliable. But what really distinguish … Continue reading ActiveMQ, Qpid, HornetQ and RabbitMQ in Comparison
Query ActiveMQ Broker Statistics with Delphi
Broker Configuration To configure ActiveMQ to use the statistics plugin add the following to the ActiveMQ XML configuration: <plugins> <statisticsBrokerPlugin/> </plugins> The statistics plugin looks for messages sent to particular destinations. Query running broker statistics To query the running statistics of the message broker, the client sends an empty message to a Destination named ActiveMQ.Statistics.Broker, … Continue reading Query ActiveMQ Broker Statistics with Delphi
AMQP, MQTT, and STOMP Messaging Protocols compared
Andy Piper / vFabric Team published an article in 2013 about three popular protocols for message broker client/server communication: Choosing Your Messaging Protocol: AMQP, MQTT, or STOMP. The STOMP specification (currently at 1.2) can be found here. For Delphi and Free Pascal developers, Habarisoft offers STOMP client libraries designed for and tested with popular open … Continue reading AMQP, MQTT, and STOMP Messaging Protocols compared
Habari Client libraries release 2014.03
Habarisoft announces new release Habari Client libraries are Delphi and Free Pascal libraries for application integration with five popular open source message brokers. Updated versions of these libraries are now available. New features and improvements in this release include improved support for transacted sessions, improved support of STOMP specification for message header properties, more unit … Continue reading Habari Client libraries release 2014.03
Habari Client libraries – new features in first 2014 release (planned for Q1)
Transaction support for message receipt acknowledgement Transactional sending of messages was already supported in all versions of Habari Client libraries. Some library versions1 now also support commit and roll back for the acknowledgement of received messages. When a transaction is rolled back or the connection is closed without a commit, messages which have been acknowledged … Continue reading Habari Client libraries – new features in first 2014 release (planned for Q1)
Habari Client Libraries for Delphi and Free Pascal – new releases
4. December 2013 - New versions of all Habari message broker client libraries are available. The new release of Habari Client libraries is mainly a maintenance release. The new library versions are: Habari Client for ActiveMQ 3.6 (tested with ActiveMQ version 5.9.0) Habari Client for Apollo 1.6 (tested with Apollo version 1.6) Habari Client for … Continue reading Habari Client Libraries for Delphi and Free Pascal – new releases
Habari Client Libraries for Delphi and Free Pascal – new releases
New versions of all Habari message broker client libraries is available. The new release of Habari Client libraries introduces new features, including improved Free Pascal support: New: Remote Procedure Call (RPC) demo program New: Heart-beating tests using built-in STOMP server New: Connection parameter "subscribe.receipt" to request and verify broker confirmations for subscriptions New: Connection pool … Continue reading Habari Client Libraries for Delphi and Free Pascal – new releases
RPC with Delphi server and Java client using RabbitMQ (part 2 of 2)
This article shows the code for a Delphi server which receives a RPC call message from the inbound RabbitMQ request queue, and sends the response message back to the Java client. It is the mirror code for the previous article. Delphi source code: [sourcecode lang="Delphi"] program RPCServer; {$APPTYPE CONSOLE} uses BTCommAdapterIndy, BTJMSConnection, BTJMSInterfaces, SysUtils; procedure … Continue reading RPC with Delphi server and Java client using RabbitMQ (part 2 of 2)
RPC with Delphi client and Java server using RabbitMQ (part 1 of 2)
The RabbitMQ online tutorial Remote procedure call (RPC) - using the Java client demonstrates how RPC can be implemented between a Java client and a Java server process, communicating over the RabbitMQ open source message broker. But access to the RPC server process is not limited to Java applications - Delphi and Free Pascal applications … Continue reading RPC with Delphi client and Java server using RabbitMQ (part 1 of 2)
SOAP and REST – Using GZip with Delphi client
Another interesting performance benchmark post by Roberto Schneider, comparing Java and Delphi implementations: SOAP and REST - Using GZip with Delphi client.