Package edu.uiuc.ncsa.qdl.vfs

Class VFSMySQLProvider

java.lang.Object

edu.uiuc.ncsa.qdl.vfs.AbstractVFSFileProvider

edu.uiuc.ncsa.qdl.vfs.VFSMySQLProvider

All Implemented Interfaces:

VFSFileProvider, Serializable

public class VFSMySQLProvider
extends AbstractVFSFileProvider

Created by Jeff Gaynor
on 2/28/20 at 7:17 AM

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	FILENAME_INDEX
static int	PATH_INDEX

Constructor Summary

Constructors

Constructor	Description
VFSMySQLProvider(VFSDatabase db, String scheme, String mountPoint, boolean canRead, boolean canWrite)

Method Summary

Modifier and Type	Method	Description
boolean	contains(String path)	Contains is a type of read.
void	delete(String path)	A delete is a type of write.
String[]	dir(String path)
boolean	easSupported()	If this store supports extended attributes.
VFSEntry	get(String path, int type)	Get the named item.
protected String[]	getPrimaryKey(String path)
protected String	getRealPath(String path)	Resolves this against any current directory and returns the unqualified *relative* path against the store's root path.
String	getType()	mostly this is so when information is being displayed to the user they can see the origin of the provider.
boolean	isDirectory(String path)
boolean	mkdir(String path)	Make a set of directories.
void	put(String path, VFSEntry entry)	Add the using the path.
void	rm(String path)	Remove a file from the store.
boolean	rmdir(String path)	Removes a directory if it is empty.

Methods inherited from class edu.uiuc.ncsa.qdl.vfs.AbstractVFSFileProvider

canRead, canWrite, checkPath, checkScheme, getCurrentDir, getFileInfo, getMountPoint, getScheme, getStoreRoot, isAbsolute, isChildOf, isScript, length, put, setCurrentDir, setMountPoint, setRead, setScheme, setWrite, unqualifyPath

Methods inherited from class java.lang.Object

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

Field Detail

PATH_INDEX

public static int PATH_INDEX

FILENAME_INDEX

public static int FILENAME_INDEX

Constructor Detail

VFSMySQLProvider

public VFSMySQLProvider(VFSDatabase db,
                        String scheme,
                        String mountPoint,
                        boolean canRead,
                        boolean canWrite)

Method Detail

getRealPath

protected String getRealPath(String path)

Description copied from class: AbstractVFSFileProvider

Resolves this against any current directory and returns the unqualified *relative* path against the store's root path.

Overrides:

getRealPath in class AbstractVFSFileProvider

Returns:

get

public VFSEntry get(String path,
                    int type)
             throws Throwable

Description copied from interface: VFSFileProvider

Get the named item. Note that all of the names are qualified.

Specified by:

get in interface VFSFileProvider

Overrides:

get in class AbstractVFSFileProvider

Returns:

Throws:

Throwable

getPrimaryKey

protected String[] getPrimaryKey(String path)

put

public void put(String path,
                VFSEntry entry)
         throws Throwable

Description copied from interface: VFSFileProvider

Add the using the path. If and entry exists there it will be over-written.

Specified by:

put in interface VFSFileProvider

Overrides:

put in class AbstractVFSFileProvider

Throws:

Throwable

delete

public void delete(String path)
            throws Throwable

Description copied from interface: VFSFileProvider

A delete is a type of write. If the store is not writeable, it cannot delete files.

Specified by:

delete in interface VFSFileProvider

Overrides:

delete in class AbstractVFSFileProvider

Throws:

Throwable

contains

public boolean contains(String path)
                 throws Throwable

Description copied from interface: VFSFileProvider

Contains is a type of read. If the store is not readable, it cannot tell if it contains an entry.

Specified by:

contains in interface VFSFileProvider

Overrides:

contains in class AbstractVFSFileProvider

Returns:

Throws:

Throwable

dir

public String[] dir(String path)
             throws Throwable

Specified by:

dir in interface VFSFileProvider

Overrides:

dir in class AbstractVFSFileProvider

Throws:

Throwable

getType

public String getType()

Description copied from interface: VFSFileProvider

mostly this is so when information is being displayed to the user they can see the origin of the provider.

Returns:

mkdir

public boolean mkdir(String path)

Description copied from interface: VFSFileProvider

Make a set of directories. This will make a given directory and any intermediate directories.

Specified by:

mkdir in interface VFSFileProvider

Overrides:

mkdir in class AbstractVFSFileProvider

Returns:

rmdir

public boolean rmdir(String path)
              throws Throwable

Removes a directory if it is empty. If it is not empty, it or the directory cannot be removed, it returns false.

Specified by:

rmdir in interface VFSFileProvider

Overrides:

rmdir in class AbstractVFSFileProvider

Parameters:

path -

Returns:

Throws:

Throwable

rm

public void rm(String path)
        throws Throwable

Description copied from interface: VFSFileProvider

Remove a file from the store.

Specified by:

rm in interface VFSFileProvider

Overrides:

rm in class AbstractVFSFileProvider

Throws:

Throwable

easSupported

public boolean easSupported()

Description copied from interface: VFSFileProvider

If this store supports extended attributes.

Specified by:

easSupported in interface VFSFileProvider

Overrides:

easSupported in class AbstractVFSFileProvider

Returns:

isDirectory

public boolean isDirectory(String path)

Specified by:

isDirectory in interface VFSFileProvider

Overrides:

isDirectory in class AbstractVFSFileProvider