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Receiving XML Events via Websocket

Purpose:

This application demonstrates how to configure WSO2 Streaming Integrator Tooling to receive events to the SweetProductionStream via WebSocket transport in XML default format and log the events in LowProductionAlertStream to the output console.

Prerequisites:

Save this sample.

Executing the Sample:

  1. Navigate to {WSO2SIHome}/samples/sample-clients/websocket-producer and run ant command as follows: Run ant command in the terminal.
    ant
    If you want to publish custom number of events, you need to run ant command as follows.
    ant -DnoOfEventsToSend=5
  2. Start the Siddhi application by clicking on 'Run'.
  3. If the Siddhi application starts successfully, the following messages would be shown on the console.
    * ReceiveWebSocketInXMLFormat.siddhi - Started Successfully!

Viewing the Results:

See the output. Following message would be shown on the console.

INFO {io.siddhi.core.stream.output.sink.LogSink} - ReceiveWebSocketInXMLFormat : LowProductionAlertStream : Event{timestamp=1517985540005, data=[Honeycomb, 2700.3555330804284], isExpired=false}
INFO {io.siddhi.core.stream.output.sink.LogSink} - ReceiveWebSocketInXMLFormat : LowProductionAlertStream : Event{timestamp=1517985541009, data=[Froyo, 4195.429933118964], isExpired=false}
INFO {io.siddhi.core.stream.output.sink.LogSink} - ReceiveWebSocketInXMLFormat : LowProductionAlertStream : Event{timestamp=1517985542006, data=[Donut, 9625.837679695496], isExpired=false}
INFO {io.siddhi.core.stream.output.sink.LogSink} - ReceiveWebSocketInXMLFormat : LowProductionAlertStream : Event{timestamp=1517985543008, data=[Froyo, 1909.568113992198], isExpired=false}
INFO {io.siddhi.core.stream.output.sink.LogSink} - ReceiveWebSocketInXMLFormat : LowProductionAlertStream : Event{timestamp=1517985544012, data=[Lollipop, 291.8985351086241], isExpired=false}

@App:name("ReceiveWebSocketInXMLFormat")
@App:description('Receive events via WebSocket transport in XML format and view the output on the console.')

@Source(type = 'websocket', url='ws://localhost:8025/abc',
    @map(type='xml'))
define stream SweetProductionStream (name string, amount double);

@sink(type='log')
define stream LowProductionAlertStream (name string, amount double);

-- passthrough data in the SweetProductionStream into LowProducitonAlertStream
@info(name='query1')
from SweetProductionStream
select *
insert into LowProductionAlertStream;
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