org.apache.hc.core5.http.nio.entity

## Class AbstractBinDataConsumer

- java.lang.Object
- - org.apache.hc.core5.http.nio.entity.AbstractBinDataConsumer

- All Implemented Interfaces:
    AsyncDataConsumer, ResourceHolder
  Direct Known Subclasses:
    AbstractBinAsyncEntityConsumer

      public abstract class AbstractBinDataConsumer
      extends Object
      implements AsyncDataConsumer

  Abstract binary data consumer.
  Since:
    5.0

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbstractBinDataConsumer()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected abstract int` | `capacityIncrement()` Triggered to obtain the capacity increment.
    `protected abstract void` | `completed()` Triggered to signal completion of data processing.
    `void` | `consume(ByteBuffer src)` Triggered to pass incoming data to the data consumer.
    `protected abstract void` | `data(ByteBuffer src, boolean endOfStream)` Triggered to pass incoming data packet to the data consumer.
    `void` | `streamEnd(List<? extends Header> trailers)` Triggered to signal termination of the data stream.
    `void` | `updateCapacity(CapacityChannel capacityChannel)` Triggered to signal ability of the underlying data stream to receive data capacity update.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface org.apache.hc.core5.http.nio.ResourceHolder

      `releaseResources`

- - ### Constructor Detail

    - #### AbstractBinDataConsumer

          public AbstractBinDataConsumer()

  - ### Method Detail

    - #### capacityIncrement

          protected abstract int capacityIncrement()

      Triggered to obtain the capacity increment.
      Returns:
        the number of bytes this consumer is prepared to process.

    - #### data

          protected abstract void data(ByteBuffer src,
                  boolean endOfStream)
                                throws IOException

      Triggered to pass incoming data packet to the data consumer.
      Parameters:
        `src` - the data packet.
        `endOfStream` - flag indicating whether this data packet is the last in the data stream.
      Throws:
        `IOException`

    - #### completed

          protected abstract void completed()
                                     throws IOException

      Triggered to signal completion of data processing.
      Throws:
        `IOException`

    - #### updateCapacity

          public final void updateCapacity(CapacityChannel capacityChannel)
                                    throws IOException

      Description copied from interface: `AsyncDataConsumer`
      Triggered to signal ability of the underlying data stream to receive data capacity update. The data consumer can choose to write data immediately inside the call or asynchronously at some later point.
      Specified by:
        `updateCapacity` in interface `AsyncDataConsumer`
      Parameters:
        `capacityChannel` - the channel for capacity updates.
      Throws:
        `IOException`

    - #### consume

          public final void consume(ByteBuffer src)
                             throws IOException

      Description copied from interface: `AsyncDataConsumer`
      Triggered to pass incoming data to the data consumer. The consumer must consume the entire content of the data buffer. The consumer must stop incrementing its capacity on the capacity channel if it is unable to accept more data. Once the data consumer has handled accumulated data or allocated more intermediate storage it can update its capacity information on the capacity channel.
      Specified by:
        `consume` in interface `AsyncDataConsumer`
      Parameters:
        `src` - data source.
      Throws:
        `IOException`

    - #### streamEnd

          public final void streamEnd(List<? extends Header> trailers)
                               throws HttpException,
                                      IOException

      Description copied from interface: `AsyncDataConsumer`
      Triggered to signal termination of the data stream.
      Specified by:
        `streamEnd` in interface `AsyncDataConsumer`
      Parameters:
        `trailers` - data stream trailers.
      Throws:
        `HttpException`
        `IOException`

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