Package org.iq80.leveldb.impl

Class Filename

java.lang.Object

org.iq80.leveldb.impl.Filename

public final class Filename
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Filename.FileInfo
static enum	Filename.FileType

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Filename()

Method Summary

Modifier and Type	Method	Description
static String	currentFileName()	Return the name of the current file.
static String	descriptorFileName(long number)	Return the name of the descriptor file with the specified incarnation number.
static String	infoLogFileName()	Return the name of the info log file.
static List<File>	listFiles(File dir)
static String	lockFileName()	Return the name of the lock file.
static String	logFileName(long number)	Return the name of the log file with the specified number.
private static String	makeFileName(long number, String suffix)
static String	oldInfoLogFileName()	Return the name of the old info log file.
static Filename.FileInfo	parseFileName(File file)	If filename is a leveldb file, store the type of the file in *type.
private static String	removePrefix(String value, String prefix)
private static String	removeSuffix(String value, String suffix)
static boolean	setCurrentFile(File databaseDir, long descriptorNumber)	Make the CURRENT file point to the descriptor file with the specified number.
static String	tableFileName(long number)	Return the name of the sstable with the specified number.
static String	tempFileName(long number)	Return the name of a temporary file with the specified number.
private static void	writeStringToFileSync(String str, File file)

Methods inherited from class java.lang.Object

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

Constructor Details

Filename

private Filename()

Method Details

logFileName

public static String logFileName(long number)

Return the name of the log file with the specified number.

tableFileName

public static String tableFileName(long number)

Return the name of the sstable with the specified number.

descriptorFileName

public static String descriptorFileName(long number)

Return the name of the descriptor file with the specified incarnation number.

currentFileName

public static String currentFileName()

Return the name of the current file.

lockFileName

public static String lockFileName()

Return the name of the lock file.

tempFileName

public static String tempFileName(long number)

Return the name of a temporary file with the specified number.

infoLogFileName

public static String infoLogFileName()

Return the name of the info log file.

oldInfoLogFileName

public static String oldInfoLogFileName()

Return the name of the old info log file.

parseFileName

public static Filename.FileInfo parseFileName(File file)

If filename is a leveldb file, store the type of the file in *type. The number encoded in the filename is stored in *number. If the filename was successfully parsed, returns true. Else return false.

setCurrentFile

public static boolean setCurrentFile(File databaseDir,
 long descriptorNumber)
                              throws IOException

Make the CURRENT file point to the descriptor file with the specified number.

Returns:

true if successful; false otherwise

Throws:

IOException

writeStringToFileSync

private static void writeStringToFileSync(String str,
 File file)
                                   throws IOException

Throws:

IOException

listFiles

public static List<File> listFiles(File dir)

makeFileName

private static String makeFileName(long number,
 String suffix)

removePrefix

private static String removePrefix(String value,
 String prefix)

removeSuffix

private static String removeSuffix(String value,
 String suffix)