This project includes a front-end example for Lightstreamer JMS Extender
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README.md

Lightstreamer JMS Extender - Basic Stock-List Demo - HTML Client

This project includes a front-end example based on the Basic Stock-List Demo for Lightstreamer JMS Extender.

Details

This demo displays real-time market data for 20 stocks, generated by the feed simulator included in the Stock-List Demo Java Service. For simplicity, a single JMS topic is used for all stocks, while in a real scenario you would probably use a different JMS topic for each stock.

This page uses the Lightstreamer JMS Extender JavaScript Client API to handle the communications with JMS Extender.

Check out the sources for further explanations.

screenshot

Install

Before you can run the demo of this project, some dependencies need to be solved:

  • Note that, as prerequisite, the Lightstreamer JMS Extender - Stock-List Demo - Java (JMS) Service has to be deployed on your local Lightstreamer JMS Extender instance. Please check out that project and follow the installation instructions provided with it.
  • Launch Lightstreamer JMS Extender.
  • Get the lightstreamer-jms.js file from the Lightstreamer JMS Extender and put it in the root folder of this project.
  • Lightstreamer visual widgets, such as the status widget and dynagrid, are hot-linked in the html page: they are in no way mandatory and you may replace them with widgets from any other library by modifying grid.js and the onLSClient event in index.html.
  • RequireJS is currently hot-linked in the html page: you may want to replace it with a local version and/or to upgrade its version.

Now, you need to configure the index.html of this example by specifying the name of the JMS connector you are going to use. By default, the demo will look for the HornetQ JMS connector, please refer to the related Service project for more details on the choice of a JMS broker to be used. To set the JMS connector name and the connection name, look where the connection is created:

  TopicConnectionFactory.createTopicConnection("http://localhost:8080/", "HornetQ", null, null, {

To access the demo from a web browser, copy it somewhere under your root webserver directory. You can also add it to the JMS Extender internal web server pages under JMSExtenderHome/pages directory by copying it there with a folder name such as StockListDemo_JMS. Subsequently you may access it as: http://your_jms_extender_http_address/StockListDemo_JMS/. Depending on the browser in use, and on the security settings, you might also be able to launch the index.html file directly from the file system.

See Also

Lightstreamer Service Needed by This Demo Client

Related Projects

Lightstreamer Compatibility Notes

  • Compatible with Lightstreamer JMS Extender JavaScript Client library since version 1.2 or newer.
  • Compatible with Lightstreamer JMS Extender since version 1.5 or newer.