Package org.apache.hadoop.hdfs.server.namenode

Class FSImageUtil

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.FSImageUtil

@Private
public final class FSImageUtil
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static int	FILE_VERSION
static byte[]	MAGIC_HEADER

Constructor Summary

Constructors

Constructor	Description
FSImageUtil()

Method Summary

Modifier and Type	Method	Description
static boolean	checkFileFormat(java.io.RandomAccessFile file)
static FsImageProto.FileSummary	loadSummary(java.io.RandomAccessFile file)
static java.io.InputStream	wrapInputStreamForCompression(org.apache.hadoop.conf.Configuration conf, java.lang.String codec, java.io.InputStream in)

Methods inherited from class java.lang.Object

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

Field Detail

MAGIC_HEADER

public static final byte[] MAGIC_HEADER

FILE_VERSION

public static final int FILE_VERSION

See Also:

Constant Field Values

Constructor Detail

FSImageUtil

public FSImageUtil()

Method Detail

checkFileFormat

public static boolean checkFileFormat(java.io.RandomAccessFile file)
                               throws java.io.IOException

Throws:

java.io.IOException

loadSummary

public static FsImageProto.FileSummary loadSummary(java.io.RandomAccessFile file)
                                            throws java.io.IOException

Throws:

java.io.IOException

wrapInputStreamForCompression

public static java.io.InputStream wrapInputStreamForCompression(org.apache.hadoop.conf.Configuration conf,
                                                                java.lang.String codec,
                                                                java.io.InputStream in)
                                                         throws java.io.IOException

Throws:

java.io.IOException