org.apache.jackrabbit.core.fs.local

Class LocalFileSystem

java.lang.Object

org.apache.jackrabbit.core.fs.local.LocalFileSystem

All Implemented Interfaces:

FileSystem

public class LocalFileSystem
extends Object
implements FileSystem

A LocalFileSystem ...

Field Summary

Fields inherited from interface org.apache.jackrabbit.core.fs.FileSystem

SEPARATOR, SEPARATOR_CHAR

Constructor Summary

Constructors

Constructor and Description
LocalFileSystem() Default constructor

Method Summary

Modifier and Type	Method and Description
void	close() Close the file system.
void	createFolder(String folderPath) Creates the folder named by this path, including any necessary but nonexistent parent folders.
void	deleteFile(String filePath) Deletes the file denoted by this path.
void	deleteFolder(String folderPath) Deletes the folder denoted by this path.
boolean	equals(Object obj)
boolean	exists(String path) Tests whether the file system entry denoted by this path exists.
String	getEnableHandleMonitor() Returns true if use of the handle monitor is currently enabled, otherwise returns false.
InputStream	getInputStream(String filePath) Returns an input stream of the contents of the file denoted by this path.
OutputStream	getOutputStream(String filePath) Returns an output stream for writing bytes to the file denoted by this path.
String	getPath()
boolean	hasChildren(String path) Tests whether the file system entry denoted by this path has child entries.
int	hashCode() Returns zero to satisfy the Object equals/hashCode contract.
void	init() Initialize the file system
boolean	isFile(String path) Tests whether the file system entry denoted by this path exists and is a file.
boolean	isFolder(String path) Tests whether the file system entry denoted by this path exists and is a folder.
long	lastModified(String path) Returns the time that the file system entry denoted by this path was last modified.
long	length(String filePath) Returns the length of the file denoted by this path.
String[]	list(String folderPath) Returns an array of strings naming the files and folders in the folder denoted by this path.
String[]	listFiles(String folderPath) Returns an array of strings naming the files in the folder denoted by this path.
String[]	listFolders(String folderPath) Returns an array of strings naming the folders in the folder denoted by this path.
void	setEnableHandleMonitor(boolean enable) Enables/Disables the use of the handle monitor.
void	setEnableHandleMonitor(String enable) Enables/Disables the use of the handle monitor.
void	setPath(String rootPath) Sets the path to the root directory of this local filesystem.
void	setRoot(File root)

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalFileSystem

public LocalFileSystem()

Default constructor

Method Detail

getPath

public String getPath()

setPath

public void setPath(String rootPath)

Sets the path to the root directory of this local filesystem. please note that this method can be called via reflection during initialization and must not be altered.

Parameters:

rootPath - the path to the root directory

setRoot

public void setRoot(File root)

setEnableHandleMonitor

public void setEnableHandleMonitor(String enable)

Enables/Disables the use of the handle monitor.

Parameters:

enable -

setEnableHandleMonitor

public void setEnableHandleMonitor(boolean enable)

Enables/Disables the use of the handle monitor.

Parameters:

enable - flag

getEnableHandleMonitor

public String getEnableHandleMonitor()

Returns true if use of the handle monitor is currently enabled, otherwise returns false.

See Also:

setEnableHandleMonitor(boolean)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns zero to satisfy the Object equals/hashCode contract. This class is mutable and not meant to be used as a hash key.

Overrides:

hashCode in class Object

Returns:

always zero

See Also:

Object.hashCode()

init

public void init()
          throws FileSystemException

Initialize the file system

Specified by:

init in interface FileSystem

Throws:

FileSystemException - if the file system initialization fails

close

public void close()
           throws FileSystemException

Close the file system. After calling this method, the file system is no longer accessible.

Specified by:

close in interface FileSystem

Throws:

FileSystemException

createFolder

public void createFolder(String folderPath)
                  throws FileSystemException

Creates the folder named by this path, including any necessary but nonexistent parent folders. Note that if this operation fails it may have succeeded in creating some of the necessary parent folders.

Specified by:

createFolder in interface FileSystem

Parameters:

folderPath - the path of the folder to be created.

Throws:

FileSystemException - if a file system entry denoted by path already exists or if another error occurs.

deleteFile

public void deleteFile(String filePath)
                throws FileSystemException

Deletes the file denoted by this path.

Specified by:

deleteFile in interface FileSystem

Parameters:

filePath - the path of the file to be deleted.

Throws:

FileSystemException - if this path does not denote a file or if another error occurs.

deleteFolder

public void deleteFolder(String folderPath)
                  throws FileSystemException

Deletes the folder denoted by this path. Any contents of this folder (folders and files) will be deleted recursively.

Specified by:

deleteFolder in interface FileSystem

Parameters:

folderPath - the path of the folder to be deleted.

Throws:

FileSystemException - if this path does not denote a folder or if another error occurs.

exists

public boolean exists(String path)
               throws FileSystemException

Tests whether the file system entry denoted by this path exists.

Specified by:

exists in interface FileSystem

Parameters:

path - the path of a file system entry.

Returns:

true if the file system entry at path exists; false otherwise.

Throws:

FileSystemException

getInputStream

public InputStream getInputStream(String filePath)
                           throws FileSystemException

Returns an input stream of the contents of the file denoted by this path.

Specified by:

getInputStream in interface FileSystem

Parameters:

filePath - the path of the file.

Returns:

an input stream of the contents of the file.

Throws:

FileSystemException - if the file does not exist or if it cannot be read from

getOutputStream

public OutputStream getOutputStream(String filePath)
                             throws FileSystemException

Returns an output stream for writing bytes to the file denoted by this path. The file will be created if it doesn't exist. If the file exists, its contents will be overwritten.

Specified by:

getOutputStream in interface FileSystem

Parameters:

filePath - the path of the file.

Returns:

an output stream for writing bytes to the file.

Throws:

FileSystemException - if the file cannot be written to or created

hasChildren

public boolean hasChildren(String path)
                    throws FileSystemException

Tests whether the file system entry denoted by this path has child entries.

Specified by:

hasChildren in interface FileSystem

Parameters:

path - the path of a file system entry.

Returns:

true if the file system entry at path has child entries; false otherwise.

Throws:

FileSystemException

isFile

public boolean isFile(String path)
               throws FileSystemException

Tests whether the file system entry denoted by this path exists and is a file.

Specified by:

isFile in interface FileSystem

Parameters:

path - the path of a file system entry.

Returns:

true if the file system entry at path is a file; false otherwise.

Throws:

FileSystemException

isFolder

public boolean isFolder(String path)
                 throws FileSystemException

Tests whether the file system entry denoted by this path exists and is a folder.

Specified by:

isFolder in interface FileSystem

Parameters:

path - the path of a file system entry.

Returns:

true if the file system entry at path is a folder; false otherwise.

Throws:

FileSystemException

lastModified

public long lastModified(String path)
                  throws FileSystemException

Returns the time that the file system entry denoted by this path was last modified.

Specified by:

lastModified in interface FileSystem

Parameters:

path - the path of a file system entry.

Returns:

A long value representing the time the file system entry was last modified, measured in milliseconds since the epoch (00:00:00 GMT, January 1, 1970), or 0L if the modification time can't be determined.

Throws:

FileSystemException - if the file system entry does not exist.

length

public long length(String filePath)
            throws FileSystemException

Returns the length of the file denoted by this path.

Specified by:

length in interface FileSystem

Parameters:

filePath - the path of the file.

Returns:

The length, in bytes, of the file denoted by this path, or -1L if the length can't be determined.

Throws:

FileSystemException - if the path does not denote an existing file.

list

public String[] list(String folderPath)
              throws FileSystemException

Returns an array of strings naming the files and folders in the folder denoted by this path.

Specified by:

list in interface FileSystem

Parameters:

folderPath - the path of the folder whose contents is to be listed.

Returns:

an array of strings naming the files and folders in the folder denoted by this path.

Throws:

FileSystemException - if this path does not denote a folder or if another error occurs.

listFiles

public String[] listFiles(String folderPath)
                   throws FileSystemException

Returns an array of strings naming the files in the folder denoted by this path.

Specified by:

listFiles in interface FileSystem

Parameters:

folderPath - the path of the folder whose contents is to be listed.

Returns:

an array of strings naming the files in the folder denoted by this path.

Throws:

FileSystemException - if this path does not denote a folder or if another error occurs.

listFolders

public String[] listFolders(String folderPath)
                     throws FileSystemException

Returns an array of strings naming the folders in the folder denoted by this path.

Specified by:

listFolders in interface FileSystem

Parameters:

folderPath - the path of the folder whose contents is to be listed.

Returns:

an array of strings naming the folders in the folder denoted by this path.

Throws:

FileSystemException - if this path does not denote a folder or if another error occurs.