Package co.cask.cdap.data2.transaction.queue.inmemory

Examples of co.cask.cdap.data2.transaction.queue.inmemory.InMemoryQueue$Item

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    };
  }

  @Override
  public InputDatum<T> tryDequeue(long timeout, TimeUnit timeoutUnit) throws IOException {
    QueueConsumer consumer = consumerSupplier.get();
    return new BasicInputDatum<byte[], T>(consumer.getQueueName(), consumer.dequeue(batchSize), decoder);
  }
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                                    groupSize,
                                    consumerConfig.getDequeueStrategy(),
                                    consumerConfig.getHashKey());
      }
      if (queueName.isQueue()) {
        QueueConsumer queueConsumer = dataFabricFacade.createConsumer(queueName, config, numGroups);
        consumerConfig = queueConsumer.getConfig();
        consumer = queueConsumer;
      } else {
        StreamConsumer streamConsumer = dataFabricFacade.createStreamConsumer(queueName, config);
        consumerConfig = streamConsumer.getConsumerConfig();
        consumer = streamConsumer;
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        try {
          txExecutor.execute(new TransactionExecutor.Subroutine() {
            @Override
            public void apply() throws Exception {
              for (StreamEvent event : events) {
                producer.enqueue(new QueueEntry(STREAM_EVENT_CODEC.encodePayload(event)));
              }
              events.clear();
            }
          });
        } catch (TransactionFailureException e) {
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  public void emit(T data, Map<String, Object> partitions) {
    try {
      ByteArrayOutputStream output = new ByteArrayOutputStream();
      output.write(schemaHash);
      writer.encode(data, new BinaryEncoder(output));
      queueProducer.enqueue(new QueueEntry(Maps.transformValues(partitions, PARTITION_MAP_TRANSFORMER),
                                           output.toByteArray()));
    } catch (IOException e) {
      throw Throwables.propagate(e);
    }
  }
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            if (queueSpec.getQueueName().getSimpleName().equals(outputName)
                && queueSpec.getOutputSchema().equals(schema)) {

              final String queueMetricsName = "process.events.out";
              final String queueMetricsTag = queueSpec.getQueueName().getSimpleName();
              QueueProducer producer = queueClientFactory.createProducer(queueSpec.getQueueName(), new QueueMetrics() {
                @Override
                public void emitEnqueue(int count) {
                  flowletContext.getProgramMetrics().increment(queueMetricsName, count, queueMetricsTag);
                }
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    this.executorFactory = executorFactory;
  }

  @Override
  public FileWriter<StreamEvent> create(StreamConfig config, int generation) throws IOException {
    final QueueProducer producer = queueClientFactory.createProducer(QueueName.fromStream(config.getName()));
    final List<TransactionAware> txAwares = Lists.newArrayList();
    if (producer instanceof TransactionAware) {
      txAwares.add((TransactionAware) producer);
    }
    final TransactionExecutor txExecutor = executorFactory.createExecutor(txAwares);

    // Adapt the FileWriter interface into Queue2Producer
    return new FileWriter<StreamEvent>() {

      private final List<StreamEvent> events = Lists.newArrayList();

      @Override
      public void append(StreamEvent event) throws IOException {
        events.add(event);
      }

      @Override
      public void close() throws IOException {
        if (producer instanceof Closeable) {
          ((Closeable) producer).close();
        }
      }

      @Override
      public void flush() throws IOException {
        try {
          txExecutor.execute(new TransactionExecutor.Subroutine() {
            @Override
            public void apply() throws Exception {
              for (StreamEvent event : events) {
                producer.enqueue(new QueueEntry(STREAM_EVENT_CODEC.encodePayload(event)));
              }
              events.clear();
            }
          });
        } catch (TransactionFailureException e) {
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    return consumer;
  }

  @Override
  public QueueProducer createProducer(QueueName queueName, QueueMetrics queueMetrics) throws IOException {
    QueueProducer producer = queueClientFactory.createProducer(queueName, queueMetrics);
    if (producer instanceof TransactionAware) {
      dataSetContext.addTransactionAware((TransactionAware) producer);
    }
    return producer;
  }
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    String[] parts = tableName.split("\\.", 2);
    String tableNamespace = "";
    if (parts.length > 0) {
      tableNamespace = parts[0];
    }
    return new DefaultTransactionStateCacheSupplier(tableNamespace, env.getConfiguration());
  }
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    String[] parts = tableName.split("\\.", 2);
    String tableNamespace = "";
    if (parts.length > 0) {
      tableNamespace = parts[0];
    }
    return new DefaultTransactionStateCacheSupplier(tableNamespace, env.getConfiguration());
  }
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    String[] parts = tableName.split("\\.", 2);
    String tableNamespace = "";
    if (parts.length > 0) {
      tableNamespace = parts[0];
    }
    return new DefaultTransactionStateCacheSupplier(tableNamespace, env.getConfiguration());
  }
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