Package org.apache.bookkeeper.client

Class BookieInfoReader

java.lang.Object

org.apache.bookkeeper.client.BookieInfoReader

public class BookieInfoReader
extends java.lang.Object

A utility class to read BookieInfoReader.BookieInfo from bookies.

NOTE: This class is tended to be used by this project only. External users should not rely on it directly.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BookieInfoReader.BookieInfo	A class represents the information (e.g.
static class	BookieInfoReader.State	Tracks whether there is an execution in progress as well as whether another is pending.

Constructor Summary

Constructors

Constructor	Description
BookieInfoReader(BookKeeper bk, ClientConfiguration conf, java.util.concurrent.ScheduledExecutorService scheduler)

Method Summary

Modifier and Type	Method	Description
(package private) void	availableBookiesChanged(java.util.Set<BookieId> updatedBookiesList)
(package private) java.util.Map<BookieId,BookieInfoReader.BookieInfo>	getBookieInfo()
(package private) java.util.Optional<java.lang.Long>	getFreeDiskSpace(BookieId bookie)	Method to allow tests to block until bookie info is available.
(package private) void	getReadWriteBookieInfo()	Performs scan described by instanceState using the cached bookie information in bookieInfoMap.
(package private) void	onExit()
void	start()

Methods inherited from class java.lang.Object

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

Constructor Detail

BookieInfoReader

BookieInfoReader(BookKeeper bk,
                 ClientConfiguration conf,
                 java.util.concurrent.ScheduledExecutorService scheduler)

Method Detail

start

public void start()

availableBookiesChanged

void availableBookiesChanged(java.util.Set<BookieId> updatedBookiesList)

getFreeDiskSpace

java.util.Optional<java.lang.Long> getFreeDiskSpace(BookieId bookie)

Method to allow tests to block until bookie info is available.

Parameters:

bookie - to lookup

Returns:

None if absent, free disk space if present

getReadWriteBookieInfo

void getReadWriteBookieInfo()

Performs scan described by instanceState using the cached bookie information in bookieInfoMap.

onExit

void onExit()

getBookieInfo

java.util.Map<BookieId,BookieInfoReader.BookieInfo> getBookieInfo()
                                                                 throws BKException,
                                                                        java.lang.InterruptedException

Throws:

BKException

java.lang.InterruptedException