Package alluxio.underfs.cephfs

Class CephInputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable
    @NotThreadSafe
public final class CephInputStream
extends java.io.InputStream
    A stream for reading a file from CephFS.

    • Constructor Summary

      Constructors 
      Constructor Description
      CephInputStream​(com.ceph.fs.CephMount mount, int fh, long flength)
      Create a new CephInputStream.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int available()  
      void close()  
      long getPos()
      Gets the current position of the stream.
      int read()  
      int read​(byte[] buf, int off, int len)  
      void seek​(long targetPos)
      Seek.
      long skip​(long n)  

      • Methods inherited from class java.io.InputStream

        mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, transferTo

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • CephInputStream

        public CephInputStream​(com.ceph.fs.CephMount mount,
                       int fh,
                       long flength)
        Create a new CephInputStream.
        Parameters:
        mount - CephFileSystem mount
        fh - The filehandle provided by Ceph to reference
        flength - The current length of the file. If the length changes you will need to close and re-open it to access the new data

    • Method Detail

      • getPos

        public long getPos()
            throws java.io.IOException
        Gets the current position of the stream.
        Returns:
        current positon of the stream
        Throws:
        java.io.IOException

      • available

        public int available()
              throws java.io.IOException
        Overrides:
        available in class java.io.InputStream
        Throws:
        java.io.IOException

      • seek

        public void seek​(long targetPos)
          throws java.io.IOException
        Seek.
        Parameters:
        targetPos - Position
        Throws:
        java.io.IOException - throws

      • skip

        public long skip​(long n)
          throws java.io.IOException
        Overrides:
        skip in class java.io.InputStream
        Throws:
        java.io.IOException

      • 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[] buf,
                int off,
                int len)
         throws java.io.IOException
        Overrides:
        read in class java.io.InputStream
        Throws:
        java.io.IOException

      • close

        public void close()
           throws java.io.IOException
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Overrides:
        close in class java.io.InputStream
        Throws:
        java.io.IOException