Package org.apache.hadoop.yarn.server.timeline.util

Class LeveldbUtils

java.lang.Object

org.apache.hadoop.yarn.server.timeline.util.LeveldbUtils

public class LeveldbUtils
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LeveldbUtils.KeyBuilder	A string builder utility for building timeline server leveldb keys.
static class	LeveldbUtils.KeyParser

Field Summary

Fields

Modifier and Type	Field	Description
static org.apache.hadoop.fs.permission.FsPermission	LEVELDB_DIR_UMASK	Default permission mask for the level db dir

Constructor Summary

Constructors

Constructor	Description
LeveldbUtils()

Method Summary

Modifier and Type	Method	Description
static org.iq80.leveldb.DB	loadOrRepairLevelDb(org.fusesource.leveldbjni.JniDBFactory factory, org.apache.hadoop.fs.Path dbPath, org.iq80.leveldb.Options options)
static boolean	prefixMatches(byte[] prefix, int prefixlen, byte[] b)	Returns true if the byte array begins with the specified prefix.

Methods inherited from class java.lang.Object

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

Field Detail

LEVELDB_DIR_UMASK

public static final org.apache.hadoop.fs.permission.FsPermission LEVELDB_DIR_UMASK

Default permission mask for the level db dir

Constructor Detail

LeveldbUtils

public LeveldbUtils()

Method Detail

prefixMatches

public static boolean prefixMatches(byte[] prefix,
                                    int prefixlen,
                                    byte[] b)

Returns true if the byte array begins with the specified prefix.

loadOrRepairLevelDb

public static org.iq80.leveldb.DB loadOrRepairLevelDb(org.fusesource.leveldbjni.JniDBFactory factory,
                                                      org.apache.hadoop.fs.Path dbPath,
                                                      org.iq80.leveldb.Options options)
                                               throws java.io.IOException

Throws:

java.io.IOException