Package org.apache.bookkeeper.bookie

Class BookieStatus

  • public class BookieStatus
extends java.lang.Object
    The status object represents the current status of a bookie instance.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      (package private) static class  BookieStatus.BookieMode  

    • Constructor Summary

      Constructors 
      Constructor Description
      BookieStatus()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) boolean isInReadOnlyMode()  
      boolean isInWritable()  
      BookieStatus parse​(java.io.BufferedReader reader)
      Parse the bookie status object using appropriate layout version.
      (package private) void readFromDirectories​(java.util.List<java.io.File> directories)
      Read bookie status from the status files, and update the bookie status if read succeed.
      (package private) boolean setToReadOnlyMode()  
      (package private) boolean setToWritableMode()  
      java.lang.String toString()  
      (package private) void writeToDirectories​(java.util.List<java.io.File> directories)
      Write bookie status to multiple directories in best effort.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • CURRENT_STATUS_LAYOUT_VERSION

        static final int CURRENT_STATUS_LAYOUT_VERSION
        See Also:
        Constant Field Values

    • Constructor Detail

      • BookieStatus

        BookieStatus()

    • Method Detail

      • isInWritable

        public boolean isInWritable()

      • setToWritableMode

        boolean setToWritableMode()

      • isInReadOnlyMode

        boolean isInReadOnlyMode()

      • setToReadOnlyMode

        boolean setToReadOnlyMode()

      • writeToDirectories

        void writeToDirectories​(java.util.List<java.io.File> directories)
        Write bookie status to multiple directories in best effort.
        Parameters:
        directories - list of directories to write to

      • readFromDirectories

        void readFromDirectories​(java.util.List<java.io.File> directories)
        Read bookie status from the status files, and update the bookie status if read succeed. If a status file is not readable or not found, it will skip and try to read from the next file.
        Parameters:
        directories - list of directories that store the status file

      • parse

        public BookieStatus parse​(java.io.BufferedReader reader)
                   throws java.io.IOException,
                          java.lang.IllegalArgumentException
        Parse the bookie status object using appropriate layout version.
        Parameters:
        reader -
        Returns:
        BookieStatus if parse succeed, otherwise return null
        Throws:
        java.io.IOException
        java.lang.IllegalArgumentException

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object