ZeroMQ Streamer | Ignite Documentation

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ZeroMQ Streamer

Apache Ignite ZeroMQ Streamer module enables streaming capabilities via ZeroMQ into Ignite.

To start streaming into Ignite, you need to do the following:

  1. Add Ignite ZeroMQ Streamer Module to your Maven pom.xml file.

    <dependencies>
        ...
        <dependency>
            <groupId>org.apache.ignite</groupId>
            <artifactId>ignite-zeromq-ext</artifactId>
            <version>${ignite-zeromq-ext.version}</version>
        </dependency>
        ...
    </dependencies>
  2. Implement either the StreamSingleTupleExtractor or the StreamMultipleTupleExtractor for ZeroMQ streamer. Refer to this sample implementation for more details.

  3. Set the extractor and initiate the streaming as shown below:

    try (IgniteDataStreamer<Integer, String> dataStreamer =
         grid().dataStreamer("myCacheName")) {
    
        dataStreamer.allowOverwrite(true);
        dataStreamer.autoFlushFrequency(1);
    
        try (IgniteZeroMqStreamer streamer = new IgniteZeroMqStreamer(
          1, ZeroMqTypeSocket.PULL, "tcp://localhost:5671", null)) {
          streamer.setIgnite(grid());
          streamer.setStreamer(dataStreamer);
    
          streamer.setSingleTupleExtractor(new ZeroMqStringSingleTupleExtractor());
    
          streamer.start();
        }
    }