Scenario: Getting messages from a Route - 6.1

Talend Components Reference Guide

EnrichVersion
6.1
EnrichProdName
Talend Big Data
Talend Big Data Platform
Talend Data Fabric
Talend Data Integration
Talend Data Management Platform
Talend Data Services Platform
Talend ESB
Talend MDM Platform
Talend Open Studio for Big Data
Talend Open Studio for Data Integration
Talend Open Studio for Data Quality
Talend Open Studio for ESB
Talend Open Studio for MDM
Talend Real-Time Big Data Platform
task
Data Governance
Data Quality and Preparation
Design and Development
EnrichPlatform
Talend Studio

This scenario describes how to accept messages from a Route using the tRouteInput component. To do this, we need to build a Job to accept the message and a Route to send the message and call the Job using the cTalendJob component.

For more information about how to use the Mediation components, see Talend ESB Mediation Components Reference Guide.

Creating an Data Integration Job

In this section, we will build a Job named RouteCommunication to accept the message from a Route.

Dropping and linking the components
  1. Drag and drop a tRouteInput and a tLogRowfrom the Palette onto the design workspace.

  2. Right-click the tRouteInput component, select Row > Main from the contextual menu and click the tLogRow component.

Configuring the components
  1. Double-click the tRouteInput component to open its Basic settings view in the Component tab.

  2. Click the three-dot button next to Edit Schema. In the schema dialog box, click the plus button to add a new line of String type and name it body. Click OK to close the dialog box.

  3. In the Simple Expression field for the body element, enter "${in.body}" to get the body of the input message from the Route.

  4. The tLogRow component will monitor the message exchanges and does not need any configuration.

  5. Press Ctrl+S to save your Job.

Creating a Mediation Route

In this section, we will switch to the Mediation perspective and create a Route to send the message to the Job.

Dropping and linking the components
  1. Drag and drop a cMessagingEndpoint, a cSetBody, and a cTalendJob from the Palette onto the design workspace.

  2. Link the components with the Row > Route connection as shown above.

  3. Label the components for better identification of their roles.

Configuring the components
  1. Double-click the cMessagingEndpoint component to open its Basic settings view in the Component tab.

  2. In the URI field, enter "timer://myTimer?period=2000" to start message exchanges every 2000 milliseconds.

  3. Double click the cSetBody component to display its Basic settings view in the Component tab.

  4. Select Simple from the Language list and enter Hello! in the Expression field.

  5. Double-click the cTalendJob component to display its Basic settings view in the Component tab.

  6. Select Job RouteCommunication from the repository.

  7. Press Ctrl+S to save your Route.

Executing the Route

Click the Run view to display it and click the Run button to launch the execution of your Route. You can also press F6 to execute it. In the execution log you will see: