Web Application SDK

Iotellect Web Application SDK is a part of Iotellect SDK that allows to implement web applications. Technically, in addition to a web application, a special version of Iotellect plugin is implemented, which performs registration of the web application. Therefore, using this SDK results in two files: Iotellect plugin and web application based on Java Servlet Technology.

Java Servlets are used to extend capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend applications hosted by web servers. For such applications, Java Servlet technology defines HTTP-specific servlet classes.

Documentation provided in this section is applicable only to on-premise and edge Iotellect server instances. Cloud server users get Iotellect as a managed service, so custom web application functionality is disabled to unsure server reliability and uptime.

Implemented web applications can interact with Iotellect Server contexts and can be hosted on the same integrated web server as Web UI (so they use the same settings).

Iotellect SDK bundle includes an open-source example of Iotellect Web Application called Demo Web Application. It is located in examples.webapp package and comprises these files:

  • DemoWebAppContextPlugin.java - Plugin Class source code

  • DemoWebApplication.java - Web Application Class source code

  • DemoWebAppServlet.java - Java Servlet Class source code

  • build.gradle - Gradle build file with a single-task building JAR and WAR files

  • plugin.properties - component plugin descriptor

  • web.xml - web application deployment descriptor

To try the driver:

  • Run build.gradle using Gradle to build demo-web-app.jar and demo-web-app.war

  • Copy demo-web-app.jar to %Iotellect Server Installation Folder/plugins/context when Iotellect Server is not running

  • Copy demo-web-app.war to %Iotellect Server Installation Folder/admin when Iotellect Server is not running

  • Start Iotellect Server

  • Execute request using the following URL: http://localhost:8080/demo-web-app

Building a web application requires extra files in the build path in addition to aggregate-api.jar and aggregate-api-libs.jar:

  • extensions-libs.jar can be found in %Iotellect Server Installation Folder/jar

  • server-core.jar can be found in %Iotellect Server Installation Folder/jar

  • webserver.jar can be found in %Iotellect Server Installation Folder/plugins/contexts

Was this page helpful?