Single-Node Configuration

You can setup a DES single-node scenario with MashZone NextGen Explorer.

2. Create an Apama project that emits DES events (e.g., by modifying the StreamExport project) and execute it. By default, all events of unhandled types will be routed to the default UniversalMessaging service, i.e., to the UM instance nsp://localhost:9000.

3. Configure the DesEventBroker microservice by opening <MashZone NextGen installation>/VisualAnalytics/config/modules.json and adapting the module specification.

{
"disabled" : true,
"level" : 90,
"impl" : "java:com.softwareag.va.des.impl.DesEventBrokerImpl"
},

Enable the microservice by setting the property disabled to false.

4. Configure the temporary DesEventBrokerConfigurationUtility microservice by opening <MashZone NextGen installation>/VisualAnalytics/config/modules.json and adapting the module specification.

{
"disabled" : true,
"level" : 91,
"impl" : "java:com.softwareag.va.des.
DesEventBrokerConfigurationUtility",
"options" : {
"config" : {
"subscriptions" : [
{
"eventTypeName" : "<fully qualified name of
the event type
to be subscribed>"
},
{
"eventTypeName" : "<fully qualified name of
another event type
to be subscribed>"
}
]
}
}
},

Enable the microservice by setting the property disabled to false. Additionally configure the type of the events to be stored. Note that the event type must be available in the type repository. If required add additional subscriptions to the JSON array subscriptions.

5. Start MashZone NextGen Explorer by executing the start script <MashZone NextGen installation>/VisualAnalytics/bin/vaserver. The DesEventBrokerConfigurationUtility microservice will configure the DesEventBroker microservice, i.e., subscribe it for events of the specified types.

6. Now deploy a JSON file describing the real-time data source to the <MashZone NextGen installation>/VisualAnalytics/data/auto-deploy/stream for each subscribed DES event type. The JSON file must have the following format.

{
"messageType" : "<fully qualified name of the subscribed
event type>",
"windowSize" : 60000
}

Adapt the message type (event type name) according to the previously configured information. If required, adapt the window size for the real-time data source. The default window size defines the minute window (60000 milliseconds).

The DES single-node scenario is configured and the DES data source can be analyzed in MashZone NextGen Explorer.