Class NativeUnixDirectory.NativeUnixIndexInput

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable, java.lang.Cloneable
    Enclosing class:
    NativeUnixDirectory

    private static final class NativeUnixDirectory.NativeUnixIndexInput
    extends IndexInput
    • Field Detail

      • buffer

        private final java.nio.ByteBuffer buffer
      • fis

        private final java.io.FileInputStream fis
      • channel

        private final java.nio.channels.FileChannel channel
      • bufferSize

        private final int bufferSize
      • isOpen

        private boolean isOpen
      • isClone

        private boolean isClone
      • filePos

        private long filePos
      • bufferPos

        private int bufferPos
    • Constructor Detail

      • NativeUnixIndexInput

        public NativeUnixIndexInput​(java.nio.file.Path path,
                                    int bufferSize)
                             throws java.io.IOException
        Throws:
        java.io.IOException
    • Method Detail

      • close

        public void close()
                   throws java.io.IOException
        Description copied from class: IndexInput
        Closes the stream to further operations.
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Specified by:
        close in class IndexInput
        Throws:
        java.io.IOException
      • seek

        public void seek​(long pos)
                  throws java.io.IOException
        Description copied from class: IndexInput
        Sets current position in this file, where the next read will occur. If this is beyond the end of the file then this will throw EOFException and then the stream is in an undetermined state.
        Specified by:
        seek in class IndexInput
        Throws:
        java.io.IOException
        See Also:
        IndexInput.getFilePointer()
      • length

        public long length()
        Description copied from class: IndexInput
        The number of bytes in the file.
        Specified by:
        length in class IndexInput
      • refill

        private void refill()
                     throws java.io.IOException
        Throws:
        java.io.IOException
      • readBytes

        public void readBytes​(byte[] dst,
                              int offset,
                              int len)
                       throws java.io.IOException
        Description copied from class: DataInput
        Reads a specified number of bytes into an array at the specified offset.
        Specified by:
        readBytes in class DataInput
        Parameters:
        dst - the array to read bytes into
        offset - the offset in the array to start storing bytes
        len - the number of bytes to read
        Throws:
        java.io.IOException
        See Also:
        DataOutput.writeBytes(byte[],int)
      • clone

        public NativeUnixDirectory.NativeUnixIndexInput clone()
        Description copied from class: IndexInput
        Returns a clone of this stream.

        Clones of a stream access the same data, and are positioned at the same point as the stream they were cloned from.

        Expert: Subclasses must ensure that clones may be positioned at different points in the input from each other and from the stream they were cloned from.

        Warning: Lucene never closes cloned IndexInputs, it will only call IndexInput.close() on the original object.

        If you access the cloned IndexInput after closing the original object, any readXXX methods will throw AlreadyClosedException.

        This method is NOT thread safe, so if the current IndexInput is being used by one thread while clone is called by another, disaster could strike.

        Overrides:
        clone in class IndexInput
      • slice

        public IndexInput slice​(java.lang.String sliceDescription,
                                long offset,
                                long length)
                         throws java.io.IOException
        Description copied from class: IndexInput
        Creates a slice of this index input, with the given description, offset, and length. The slice is sought to the beginning.
        Specified by:
        slice in class IndexInput
        Throws:
        java.io.IOException