This section explains how to generate artifacts representing different scenarios based on previously created templates using the Template Manager dashboard.
Before you try out this scenario, a template should be created as described in Configuring a Template for Template Manager.
This tutorial uses the
SensorAnalytics template that is shipped by default in the
Using the template
Follow the procedure below to use the previously created
SensorDataAnalysis template in different scenarios.
Start WSO2 CEP by issuing one of the following commands:
- For Linux:
sh wso2 server.sh
- For Windows:
If you are starting CEP for the first time after making an edit to the template, include the
DoverwriteTemplateManagerparameter in the start command as shown below.
- For Linux:
sh wso2 server.sh -DoverwriteTemplateManager=true
- For Windows:
DoverwriteTemplateManagerparameter applies the changes you have made to the template.
- For Linux:
- Log in to the management console using the following URL.
- Click Main, and then click Template Manager under the Manage menu. The following dashboard home page appears with the available domains as shown below.
- Select the relevant domain to configure the defined template (in this example it is SensorDataAnalysis). This opens the Deployed Scenarios page.
- Click Create New Scenario to add a new scenario to the selected domain. This opens the Edit Scenario page.
Enter values in the Edit Scenario page as follows.
Field Value Notes Scenario Type
This is the template created by following the instructions in Configuring a Template for Template Manager. Scenario Name
Calculate maximum and average temperature values.
Enter values for the configurable parameters as shown below.
Configurable Parameters Value Time(Mins)
Sensor Type Name
Click Add Scenario. A pop-up message appears to inform you that the configuration is successfully saved. Close this message. The scenario you configured is displayed in the Deployed Scenarios page as follows.
You can edit or delete this scenario by clicking the relevant link under Actions.
In this example, the scenario gets deployed at this stage because no stream mapping is configured in the default
SensorAnalyticstemplate used. If you have configured stream mapping for your template, you are redirected to the Stream Mapping page when you click Add Scenario. Select an appropriate predefined stream from the list for the Mapped From: Stream Name field. This expands the page to display the Attribute Mapping section as demonstrated below. Map attributes as required and click Save Mapping.
Once this configuration is successfully completed, the artifacts included in the template are deployed in WSO2 CEP. You can view the event flow for the template artifacts by logging into the WSO2 CEP Management Console, and clicking Main ∫=> Flow where it is displayed as follows.
- In the WSO2 CEP Management Console, click Main and then click Analytics Dashboard to open the Analytics Dashboard. Log in with your credentials. The dashboard named
analytics-temperature-dashboardthat is included in the template used in this example is displayed as follows.
- To simulate data in order to view statistics in the
analytics-temperature-dashboarddashboard, do the following. For more information, see Sending Multiple Events Using a File.
- In the WSO2 CEP Management Console, click Tools and then click Event Simulator to open the Event Stream Simulator page.
Click Configure for the
events.csvfile to open the Event Mapping Configuration dialog box. Enter the following values in this dialog box.
Parameter Value Select the target event stream
Click Configure and then click OK to close the message that appears to confirm that the configuration is successful.
- Click Play to simulate the event flow.
- Once you simulate the events, access the Analytics Dashboard and mentioned in step 6, and then click View on the
analytics-temperature-dashboarddashboard. Data published to the dashboard is displayed as shown below.