alluxio.hub.agent.util.file

Class AbstractFileManager

java.lang.Object

alluxio.hub.agent.util.file.AbstractFileManager

All Implemented Interfaces:

FileManager

Direct Known Subclasses:

SimpleFileManager, VersionFileManager

public abstract class AbstractFileManager
extends Object
implements FileManager

Abstract file manager.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	mGroup
protected File	mRootDir
protected String	mUser

Constructor Summary

Constructors

Constructor and Description
AbstractFileManager(String rootDir, String user, String group) Construct a file manager from a string root.

Method Summary

Modifier and Type	Method and Description
boolean	addFile(String fileName, String permission, byte[] content) Add a file to the file manager.
protected abstract String	getNextFilePath(String fileName)
protected static void	verifyFileName(String fname) Verifies that a filename conforms to a set of restrictions.

Methods inherited from class java.lang.Object

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

Methods inherited from interface alluxio.hub.agent.util.file.FileManager

listFile, removeFile

Field Detail

mRootDir

protected final File mRootDir

mUser

protected final String mUser

mGroup

protected final String mGroup

Constructor Detail

AbstractFileManager

public AbstractFileManager(String rootDir,
                           String user,
                           String group)

Construct a file manager from a string root.

Parameters:

rootDir - root directory

user - User name

group - Group Name

Method Detail

getNextFilePath

protected abstract String getNextFilePath(String fileName)

addFile

public boolean addFile(String fileName,
                       String permission,
                       byte[] content)

Description copied from interface: FileManager

Add a file to the file manager.

Specified by:

addFile in interface FileManager

Parameters:

fileName - filename

permission - permission string

content - content

Returns:

true if successfully added

verifyFileName

protected static void verifyFileName(String fname)
                              throws AlluxioException

Verifies that a filename conforms to a set of restrictions.

Parameters:

fname - the filename that should be used

Throws:

AlluxioException - if the filename is invalid