Class FileSystemAbstract

java.lang.Object
  |
  +--FileSystemAbstract

Direct Known Subclasses:

FileSystem

abstract class FileSystemAbstract

extends java.lang.Object

Field Summary

protected DirectoryBlock	db
Disk	disk
protected int	f_index
protected java.lang.String	fname

Constructor Summary

FileSystemAbstract()

Method Summary

abstract short	allocBlocks(int num_blocks)
abstract void	append(java.lang.String name, byte[] buf, int bufLen)
(package private) void	checkDir(short blockPtr, int[] dir, int[] data)
protected void	checkDirectoryName(java.lang.String name)
(package private) void	checkFile(short blockPtr, int[] data)
abstract void	create(java.lang.String name)
abstract void	createDir(java.lang.String name)
abstract void	deallocBlocks(short blockPtr)
abstract void	delete(java.lang.String name)
abstract void	deleteDir(java.lang.String name)
void	diskCheck()
abstract boolean	existsDirectory(java.lang.String name)
abstract boolean	existsFile(java.lang.String name)
abstract void	fileAppend(java.lang.String fname1, java.lang.String fname2)
abstract void	fileCopy(java.lang.String fname1, java.lang.String fname2)
void	fileExport(java.lang.String fname1, java.lang.String fname2)
void	fileImport(java.lang.String fname1, java.lang.String fname2)
abstract DirectoryBlock	findDirectory(java.lang.String name)
void	format()
abstract void	getFileRef(java.lang.String name)
abstract void	list(java.lang.String name)
abstract void	move(java.lang.String name1, java.lang.String name2)
abstract byte[]	read(java.lang.String name)
abstract byte[]	read(java.lang.String name, int offset, int length)
abstract void	tree()

Methods inherited from class java.lang.Object

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

Field Detail

f_index

protected int f_index

db

protected DirectoryBlock db

fname

protected java.lang.String fname

disk

public Disk disk

Constructor Detail

FileSystemAbstract

public FileSystemAbstract()

Method Detail

format

public final void format()
                  throws FileSystemException

FileSystemException

checkDirectoryName

protected final void checkDirectoryName(java.lang.String name)
                                 throws FileSystemException

FileSystemException

fileImport

public final void fileImport(java.lang.String fname1,
                             java.lang.String fname2)
                      throws FileSystemException

FileSystemException

fileExport

public final void fileExport(java.lang.String fname1,
                             java.lang.String fname2)
                      throws FileSystemException

FileSystemException

checkFile

void checkFile(short blockPtr,
               int[] data)
         throws FileSystemException

FileSystemException

checkDir

void checkDir(short blockPtr,
              int[] dir,
              int[] data)
        throws FileSystemException

FileSystemException

diskCheck

public final void diskCheck()
                     throws FileSystemException

FileSystemException

findDirectory

public abstract DirectoryBlock findDirectory(java.lang.String name)
                                      throws FileSystemException

FileSystemException

list

public abstract void list(java.lang.String name)
                   throws FileSystemException

FileSystemException

createDir

public abstract void createDir(java.lang.String name)
                        throws FileSystemException

FileSystemException

deleteDir

public abstract void deleteDir(java.lang.String name)
                        throws FileSystemException

FileSystemException

create

public abstract void create(java.lang.String name)
                     throws FileSystemException

FileSystemException

delete

public abstract void delete(java.lang.String name)
                     throws FileSystemException

FileSystemException

read

public abstract byte[] read(java.lang.String name)
                     throws FileSystemException

FileSystemException

read

public abstract byte[] read(java.lang.String name,
                            int offset,
                            int length)
                     throws FileSystemException

FileSystemException

getFileRef

public abstract void getFileRef(java.lang.String name)
                         throws FileSystemException

FileSystemException

existsFile

public abstract boolean existsFile(java.lang.String name)
                            throws FileSystemException

FileSystemException

existsDirectory

public abstract boolean existsDirectory(java.lang.String name)
                                 throws FileSystemException

FileSystemException

append

public abstract void append(java.lang.String name,
                            byte[] buf,
                            int bufLen)
                     throws FileSystemException

FileSystemException

move

public abstract void move(java.lang.String name1,
                          java.lang.String name2)
                   throws FileSystemException

FileSystemException

fileCopy

public abstract void fileCopy(java.lang.String fname1,
                              java.lang.String fname2)
                       throws FileSystemException

FileSystemException

fileAppend

public abstract void fileAppend(java.lang.String fname1,
                                java.lang.String fname2)
                         throws FileSystemException

FileSystemException

deallocBlocks

public abstract void deallocBlocks(short blockPtr)
                            throws FileSystemException

FileSystemException

allocBlocks

public abstract short allocBlocks(int num_blocks)
                           throws FileSystemException

FileSystemException

tree

public abstract void tree()
                   throws FileSystemException

FileSystemException