org.apache.hadoop.hdfs.tools.offlineImageViewer

Class PBImageDelimitedTextWriter

java.lang.Object

org.apache.hadoop.hdfs.tools.offlineImageViewer.PBImageDelimitedTextWriter

All Implemented Interfaces:

Closeable, AutoCloseable

public class PBImageDelimitedTextWriter
extends Object

A PBImageDelimitedTextWriter generates a text representation of the PB fsimage, with each element separated by a delimiter string. All of the elements common to both inodes and inodes-under-construction are included. When processing an fsimage with a layout version that did not include an element, such as AccessTime, the output file will include a column for the value, but no value will be included. Individual block information for each file is not currently included. The default delimiter is tab, as this is an unlikely value to be included in an inode path or other text metadata. The delimiter value can be via the constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
String	getEntry(String parent, FsImageProto.INodeSection.INode inode) Get text output for the given inode.
String	getHeader() Get text output for the header line.
protected org.apache.hadoop.fs.permission.PermissionStatus	getPermission(long perm)
void	visit(RandomAccessFile file)

Methods inherited from class java.lang.Object

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

Method Detail

getEntry

public String getEntry(String parent,
              FsImageProto.INodeSection.INode inode)

Get text output for the given inode.

Parameters:

parent - the path of parent directory

inode - the INode object to output.

getHeader

public String getHeader()

Get text output for the header line.

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

visit

public void visit(RandomAccessFile file)
           throws IOException

Throws:

IOException

getPermission

protected org.apache.hadoop.fs.permission.PermissionStatus getPermission(long perm)