Java code connect UM by MQTT protocol?

Bing_Liu · December 23, 2015, 3:38am

Hi All

I want to use jave code to connect the UM by MQTT protocol.
Who can provide me a sample for MQTT clients for subscriptions and publishing?

My UM server: nsp://localhost:9000

I can use java code to connect ActiveMQ by MQTT protocol.

Thanks

Mahesh_K_Sreenivas · December 27, 2015, 11:35am

Check if http://um.terracotta.org/ helps you for UM API reference.

You can also contact SAG global support, they might provide a sample code snippet.

Jonathan_Heywood · December 27, 2015, 12:41pm

Hi,

MQTT is a standard wire protocol. Software AG doesn’t provide an MQTT client, so you will need to use a 3rd party client library. The most widely used is the Eclipse Paho client: Eclipse Paho | The Eclipse Foundation
This also includes some simple samples that will also work with UM. Note that MQTT messages are binary (byte) messages, so if you want interoperability with JMS, for example, you will have to use JMS bytes messages.

I would recommend that you set up a separate interface (port) for your MQTT communication. The default port number for MQTT is 1883, so you should set up an nsp interface on port 1883 and make sure it is started (in Enterprise Manager).

Hope this helps.

Bing_Liu · December 28, 2015, 8:09am

Thank you very much.

…
I would recommend that you set up a separate interface (port) for your MQTT communication. The default port number for MQTT is 1883, so you should set up an nsp interface on port 1883 and make sure it is started (in Enterprise Manager).
…

I can’t find any information for ‘setup an nsp interface on port 1883’.
Can you give me a few guidance? Thanks.

My Enterprise Manager screenshot:
See Attachments

Jonathan_Heywood · December 28, 2015, 9:35am

Here’s how to create an nsp interface on port 1883:

In Enterprise Manager, select the realm on the left
Click the Comms tab on the right
Click the Interfaces tab just below that
Click the Add Interface button at the bottom
Select protocol nsp, port 1883, select auto-start and leave the rest as defaults
Click OK

Bing_Liu · December 28, 2015, 10:53am

Thanks Jonathan.
I know how to do it. Base on your reply,It works to connect UM(by MQTT protocol). Thanks again.

Bing_Liu · December 28, 2015, 10:56am

Thanks Jonathan.
I know how to do it. Base on your reply,It works to connect UM(by MQTT protocol). Thanks again.

Ramanjaneyulu_Borusu · March 16, 2016, 3:36pm

I created as you said,here not showing MQTT connection could please help on this.

anon3895997 · March 21, 2016, 1:10pm

Ramanjaneyulu Borusu see ->[url]Java code connect UM by MQTT protocol? - webMethods - Software AG Tech Community & Forums