Package org.apache.nifi.io.nio

Class BufferPool

java.lang.Object
org.apache.nifi.io.nio.BufferPool
All Implemented Interfaces:
Runnable
public class BufferPool extends Object implements Runnable

  • Field Details

    • LOGGER

      private static final org.slf4j.Logger LOGGER

    • bufferPool

      final BlockingQueue<ByteBuffer> bufferPool

    • ONE_MB

      private static final double ONE_MB
      See Also:

    • lastRateSampleTime

      private Calendar lastRateSampleTime

    • startTime

      private final Calendar startTime

    • lastRateSampleMBps

      double lastRateSampleMBps

    • overallMBps

      double overallMBps

    • totalBytesExtracted

      private long totalBytesExtracted

    • lastTotalBytesExtracted

      private long lastTotalBytesExtracted

    • maxRateMBps

      final double maxRateMBps

  • Constructor Details

    • BufferPool

      public BufferPool(int bufferCount, int bufferCapacity, boolean allocateDirect, double maxRateMBps)

  • Method Details

    • returnBuffer

      public boolean returnBuffer(ByteBuffer buffer, int bytesProcessed)
      Returns the given buffer to the pool - and clears it.
      Parameters:
      buffer - buffer to return
      bytesProcessed - bytes processed for this buffer being returned
      Returns:
      true if buffer returned to pool

    • poll

      public ByteBuffer poll()

    • size

      public int size()

    • computeRate

      private void computeRate()

    • createBuffers

      public static List<ByteBuffer> createBuffers(int bufferCount, int bufferCapacity, boolean allocateDirect)

    • logChannelReadRates

      private void logChannelReadRates()

    • run

      public void run()
      Specified by:
      run in interface Runnable