Package io.druid.data.input

Examples of io.druid.data.input.ByteBufferInputRowParser

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  {
    Set<String> newDimExclus = Sets.union(
        firehoseParser.getParseSpec().getDimensionsSpec().getDimensionExclusions(),
        Sets.newHashSet("feed")
    );
    final ByteBufferInputRowParser theParser = firehoseParser.withParseSpec(
        firehoseParser.getParseSpec()
                      .withDimensionsSpec(
                          firehoseParser.getParseSpec()
                                        .getDimensionsSpec()
                                        .withDimensionExclusions(
                                            newDimExclus
                                        )
                      )
    );

    final ConsumerConnector connector = Consumer.createJavaConsumerConnector(new ConsumerConfig(consumerProps));

    final Map<String, List<KafkaStream<byte[], byte[]>>> streams = connector.createMessageStreams(
        ImmutableMap.of(
            feed,
            1
        )
    );

    final List<KafkaStream<byte[], byte[]>> streamList = streams.get(feed);
    if (streamList == null || streamList.size() != 1) {
      return null;
    }

    final KafkaStream<byte[], byte[]> stream = streamList.get(0);
    final ConsumerIterator<byte[], byte[]> iter = stream.iterator();

    return new Firehose()
    {
      @Override
      public boolean hasMore()
      {
        return iter.hasNext();
      }

      @Override
      public InputRow nextRow()
      {
        final byte[] message = iter.next().message();

        if (message == null) {
          return null;
        }

        return theParser.parse(ByteBuffer.wrap(message));
      }

      @Override
      public Runnable commit()
      {
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  {
    Set<String> newDimExclus = Sets.union(
        firehoseParser.getParseSpec().getDimensionsSpec().getDimensionExclusions(),
        Sets.newHashSet("feed")
    );
    final ByteBufferInputRowParser theParser = firehoseParser.withParseSpec(
        firehoseParser.getParseSpec()
                      .withDimensionsSpec(
                          firehoseParser.getParseSpec()
                                        .getDimensionsSpec()
                                        .withDimensionExclusions(
                                            newDimExclus
                                        )
                      )
    );

    final ConsumerConnector connector = Consumer.createJavaConsumerConnector(new ConsumerConfig(consumerProps));

    final Map<String, List<KafkaStream<Message>>> streams = connector.createMessageStreams(ImmutableMap.of(feed, 1));

    final List<KafkaStream<Message>> streamList = streams.get(feed);
    if (streamList == null || streamList.size() != 1) {
      return null;
    }

    final KafkaStream<Message> stream = streamList.get(0);
    final Iterator<MessageAndMetadata<Message>> iter = stream.iterator();

    return new Firehose()
    {
      @Override
      public boolean hasMore()
      {
        return iter.hasNext();
      }

      @Override
      public InputRow nextRow()
      {
        final Message message = iter.next().message();

        if (message == null) {
          return null;
        }

        return parseMessage(message);
      }

      public InputRow parseMessage(Message message)
      {
        return theParser.parse(message.payload());
      }

      @Override
      public Runnable commit()
      {
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Related Classes of io.druid.data.input.ByteBufferInputRowParser

  • io.druid.firehose.kafka.KafkaEightFirehoseFactory
  • io.druid.firehose.kafka.KafkaSevenFirehoseFactory
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