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Chapter 4. Quickstarts

4.1. Quickstart

The quickstarts are sample projects. Each one demonstrates how to use a specific piece of functionality in order to aid you in building services. There are several dozen quickstarts included in the SOA_ROOT/jboss-as/samples/quickstarts/ directory. Build and deploy every quickstart by using Apache Ant.

4.2. Important Notes About Quickstarts

When intending to run a quickstart, remember the following points:
  1. Each quickstart needs to be built and deployed using Apache Ant.
  2. Each quickstart uses the samples/quickstarts/conf/quickstarts.properties file to store environment-specific configuration options such as the directory where the server was installed. You must create a quickstarts.properties file that matches your server installation. An example properties file (quickstarts.properties-example) is included.
  3. Each quickstart has different requirements. These are documented in their individual readme.txt files.
  4. Not every quickstart can run under every server profile.
  5. The jBPM quickstarts require a valid jBPM Console user name and password. Supply these by adding them as properties in the SOA_ROOT/jboss-as/samples/quickstarts/conf/quickstarts.properties file: 
    # jBPM console security credentials
jbpm.console.username=admin 
jbpm.console.password=adminpassword
    The quickstarts that are affected by this requirement are bpm_orchestration1, bpm_orchestration2, bpm_orchestration3 and bpm_orchestration4.
  6. You can only execute some of the quickstarts (such as groovy_gateway) if the server is not running in headless mode. (The JBoss Enterprise SOA Platform is configured to launch in headless mode by default.)

    Important

    Red Hat recommends that you run production servers in headless mode only.

4.3. Learn More About a Quickstart

To learn more about a particular quickstart:

Procedure 4.1. Task

  1. Study the quickstart's readme.txt file.
  2. Run the ant help command in the quickstart's directory.

4.4. Overview of How the "Hello World" Quickstart Works

Image

Figure 4.1. Image

  1. The JBoss Enterprise SOA Platform server is launched in Window1 and then the FirstServiceESB:SimpleListener service is added to the Service Registry service when the helloworld quickstart is deployed.
  2. A JMS client sends an ESB-unaware "Hello World" message, (it is a plain String object), to the JMS Queue (queue/quickstart_helloworld_Request_gw).
  3. The JMS Gateway Listener receives the ESB-unaware message and creates from it an ESB-aware message for use by ESB-aware end-points.
  4. The JMS Gateway Listener uses the service registry to find the FirstServiceESB:SimpleListener service's end-point reference (EPR). In this case, the EPR is the queue/quickstart_helloworld_Request_esb JMS queue.
  5. The JMS Gateway Listener takes the new ESB-aware message and sends it to the queue/quickstart_helloworld_Request_esb JMS queue.
  6. The FirstServiceESB:SimpleListener service receives the message.
  7. The FirstServiceESB:SimpleListener service extracts the payload from the message and outputs it to the console.
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