Habari® Stomp 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
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Four library versions are available, specialized for different message brokers
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Use the feature matrix below to compare their broker-specific features
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For downloads and more information choose your version from the top menu or in the matrix
| Version | Habari Client for ActiveMQ | Habari Client for Artemis | Habari Client for OpenMQ | Habari Client for RabbitMQ |
|---|---|---|---|---|
| Message Types | ||||
| TextMessage | ✓ | ✓ | ✓ | ✓ |
| BytesMessage | ✓ | ✓ | ✓ | ✓ |
| ObjectMessage | ✓ | ✓ | ✓ | ✓ |
| MapMessage | ✓ | ✓ | ✓ | ✓ |
| Message | ✓ | ✓ | ✓ | ✓ |
| STOMP Standard Support | ||||
| 1.0/1.2 Support | ✓/✓ | ✓/✓ | ✓/partial | ✓/✓ |
| Heart-beating | ✓ | ✓ | ① | ✓ |
| Transacted Send | ✓ | ✓ | ✓ | ✓ |
| Transacted Ack | ✓ | ① | ① | ✓ |
| Supported broker-side STOMP extensions | ||||
| Message Expiration | ✓ | ✓ | ✓ | ✓ |
| Message Priority | ✓ | ✓ | ✓ | ✓ |
| Persistent Messages | ✓ | ✓ | ✓ | ✓ |
| Durable Topics | ✓ | ✓ | ✓ | ✓ |
| Rich Message Conversion | ✓ | ✓ | ✓ | ✓ |
| Temporary Queues | ✓ | ① ARTEMIS-3164 | ✓ | ✓ |
| Message Selector | ✓ | ✓ | ✓ | ① |
| Queue Browser | ✓ | ✓ | ① | ① |
| Client-side extensions | ||||
| Failover Protocol | ✓ | ✓ | ✓ | ✓ |
| Connection Builder | ✓ | ✓ | ✓ | ✓ |
| Testing | ||||
| DUnit Tests | ✓ | ✓ | ✓ | ✓ |
| FPCUnit Tests | ✓ | ✓ | ✓ | ✓ |
| Documentation | ||||
| API (HTML) | ✓ | ✓ | ✓ | ✓ |
| Getting started (PDF) | ✓ | ✓ | ✓ | ✓ |
| Unit test source code | ✓ | ✓ | ✓ | ✓ |
| Tutorials and examples | ✓ | ✓ | ✓ | ✓ |
| Compiler | ||||
| Delphi 2009+ | ✓ | ✓ | ✓ | ✓ |
| Free Pascal 3.0.4+ | ✓ | ✓ | ✓ | ✓ |
| TCP/IP Libraries | ||||
| Internet Direct (Indy) 10.6.2 (recommended) | ✓ | ✓ | ✓ | ✓ |
| Ararat Synapse b40 (deprecated) ② | ✓ | ✓ | ✓ | ✓ |
| Logging (optional) | ||||
| SLF4P logging facade | ✓ | ✓ | ✓ | ✓ |
| Platforms | ||||
| Windows 32 bit (Delphi/FPC) | ✓/✓ | ✓/✓ | ✓/✓ | ✓/✓ |
| Windows 64 bit (Delphi ②/FPC) | ✓/✓ | ✓/✓ | ✓/✓ | ✓/✓ |
| Linux ② with Delphi 10.3/FPC | ✓/✓ | ✓/✓ | ✓/✓ | ✓/✓ |
| Additional information | ||||
| Source included | ✓ | ✓ | ✓ | ✓ |
| Tested with | ActiveMQ 5.16.2 | ActiveMQ Artemis 2.17.0 | Eclipse GlassFish 6.0 | RabbitMQ 3.8.19 and 3.9.0 |
| Release date | 14 August 2021 | 14 August 2021 | 14 August 2021 | 14 August 2021 |
| Buy now » | Buy now » | Buy now » | Buy now » | |
|
① - Not supported by message broker STOMP implementation ② - Limited support and/or experimental feature |
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Load balancing/distributed processing, client notification in multi-tiered applications, dynamically configuring and controlling software, alerting and logging, integration with ISAPI, PHP, .NET, Python or Java™ based web applications
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Yes! Basic support is included for one year. Advanced and experimental features such as (for example) SSL/TLS, third party libraries, Linux, non-Unicode Delphi versions and message broker configuration are not covered by the basic support plan.
On the library home page you will find a link to the download area for registered users. The credentials (user name and password) will be sent to you when a new release is available.
A trial version with precompiled units (DCU) is not available. To see if the library works, you may use the free demo applications which are included in the download file. Also, you may contact Habarisoft to receive additional source code examples.
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Yes, each developer that uses our products must have their own license.
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No, the licenses are perpetual. However, you will be using the last product version released before your free upgrade period expired.
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No, the source code is not redistributable, even if you change it.
Internet Direct (Indy) or the Synapse TCP/IP network library is required.
Indy is hosted on GitHub at https://github.com/IndySockets
No, just add the Indy directories Lib\Core, Lib\Protocols and Lib\System to the project search path. The Indy version which is included in Delphi may remain unchanged.
The library includes two experimental adapter classes for usage with OpenSSL, one for Indy (Internet Direct) and one for Synapse. Technical support for these adapter classes and OpenSSL configuration is not included in the basic support package.
No, using a connection concurrently by different threads is unsafe. If different threads need to communicate with the message broker, every thread must use its own IConnection object.
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Yes! When it is used correctly and as designed, no memory leaks will appear.
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Yes! Service applications can use the library to communicate with the message broker, if connections are not used concurrently by different threads.
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Yes! ISAPI DLL modules can use the library to communicate with the message broker, if connections are not used concurrently by different threads.
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Yes! All library versions include support for transactional sending of messages. Transactional message ack currently is provided for ActiveMQ and RabbitMQ.
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Yes, the core library works with Free Pascal 3.0.2+
No, the library only supports the Stomp wire format.
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