Development Process

This document describes Storm topology development based on the Java API.

Figure 1 shows the development process.

Figure 1 Topology development process

**Table 1** Description about Storm application development process
Phase	Description	Reference Document
Understand the basic concepts.	Before application development, understand common concepts about Storm, understand the scenario requirements, and topologies.	Common Concepts
Prepare the development and operating environment.	The Java language is recommended for Storm application development. The IntelliJ IDEA tool can be used. The Storm running environment is a Storm client. Install and configure the client according to the guide.	Preparing for Development and Operating Environment
Prepare projects.	Storm provides sample projects for different scenarios. You can import a sample project to learn the application.	Configuring and Importing Sample Projects
Develop topologies based on scenarios.	The Storm topology construction and Spout/Bolt development process are provided.	Developing an Application
Package the IntelliJ IDEA code.	Storm example programs are running in the Linux OS. IntelliJ IDEA code needs to be packaged into a JAR package.	Packaging IntelliJ IDEA Code
Package services.	Combine the JAR package generated from the IntelliJ IDEA code and the project dependent JAR package to generate the source.jar package that can be submitted.	Packaging Services
Submit a topology.	Submit the developed application for running.	Submitting a Topology
View application running results.	Check the program running result after submitting topologies.	Viewing Results