Package org.apache.bookkeeper.streaming

Class LedgerInputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable
    public class LedgerInputStream
extends java.io.InputStream
    An input stream on reading data from a ledger.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Method close currently doesn't do anything.
      int read()  
      int read​(byte[] b)  
      int read​(byte[] b, int off, int len)  

      • Methods inherited from class java.io.InputStream

        available, mark, markSupported, reset, skip

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • bbytes

        byte[] bbytes

      • lastEntry

        long lastEntry

      • increment

        int increment

      • defaultSize

        int defaultSize

      • ledgerSeq

        java.util.Enumeration<LedgerEntry> ledgerSeq

    • Constructor Detail

      • LedgerInputStream

        public LedgerInputStream​(LedgerHandle lh)
                  throws BKException,
                         java.lang.InterruptedException
        construct a outputstream from a ledger handle.
        Parameters:
        lh - ledger handle
        Throws:
        BKException - when encountered bookkeeper exceptions
        java.lang.InterruptedException - when opening a ledger input stream is interrupted.

      • LedgerInputStream

        public LedgerInputStream​(LedgerHandle lh,
                         int size)
                  throws BKException,
                         java.lang.InterruptedException
        construct a outputstream from a ledger handle.
        Parameters:
        lh - the ledger handle
        size - the size of the buffer
        Throws:
        BKException - when encountered bookkeeper exceptions
        java.lang.InterruptedException - when opening a ledger input stream is interrupted.

    • Method Detail

      • close

        public void close()
        Method close currently doesn't do anything. The application is supposed to open and close the ledger handle backing up a stream (LedgerHandle).
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Overrides:
        close in class java.io.InputStream

      • read

        public int read()
         throws java.io.IOException
        Specified by:
        read in class java.io.InputStream
        Throws:
        java.io.IOException

      • read

        public int read​(byte[] b)
         throws java.io.IOException
        Overrides:
        read in class java.io.InputStream
        Throws:
        java.io.IOException

      • read

        public int read​(byte[] b,
                int off,
                int len)
         throws java.io.IOException
        Overrides:
        read in class java.io.InputStream
        Throws:
        java.io.IOException