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java.lang.Objectorg.jboss.vfs.spi.RootFileSystem
public final class RootFileSystem
A special FileSystem which supports multiple roots. This is currently accomplished by requiring that VirtualFile.getPathName() produce output that is consumable by java.io.File as a path.
Field Summary | |
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static RootFileSystem |
ROOT_INSTANCE
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Method Summary | |
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void |
close()
Destroy this filesystem instance. |
boolean |
delete(VirtualFile mountPoint,
VirtualFile target)
Attempt to delete a virtual file within this filesystem. |
boolean |
exists(VirtualFile mountPoint,
VirtualFile target)
Ascertain the existance of a virtual file within this filesystem. |
CodeSigner[] |
getCodeSigners(VirtualFile mountPoint,
VirtualFile target)
Get the CodeSigner s for a the virtual file. |
List<String> |
getDirectoryEntries(VirtualFile mountPoint,
VirtualFile target)
Read a directory. |
File |
getFile(VirtualFile mountPoint,
VirtualFile target)
Get a real File for the given path within this filesystem. |
long |
getLastModified(VirtualFile mountPoint,
VirtualFile target)
Get the last modification time of a virtual file within this filesystem. |
File |
getMountSource()
Get the File source provided at mount time. |
long |
getSize(VirtualFile mountPoint,
VirtualFile target)
Get the size of a virtual file within this filesystem. |
boolean |
isDirectory(VirtualFile mountPoint,
VirtualFile target)
Ascertain whether a virtual file within this filesystem is a directory. |
boolean |
isFile(VirtualFile mountPoint,
VirtualFile target)
Ascertain whether a virtual file within this filesystem is a plain file. |
boolean |
isReadOnly()
Determine whether this filesystem is read-only. |
InputStream |
openInputStream(VirtualFile mountPoint,
VirtualFile target)
Open an input stream for the file at the given relative path. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final RootFileSystem ROOT_INSTANCE
Method Detail |
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public InputStream openInputStream(VirtualFile mountPoint, VirtualFile target) throws IOException
openInputStream
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
IOException
- if an I/O error occurspublic boolean isReadOnly()
FileSystem
implementation).
isReadOnly
in interface FileSystem
true
if the filesystem is read-onlypublic File getFile(VirtualFile mountPoint, VirtualFile target)
File
for the given path within this filesystem. Some filesystem types will need to make a copy
in order to return this file; such copies should be cached and retained until the filesystem is closed. Depending
on the file type, the real path of the returned File
may or may not bear a relationship to the virtual
path provided; if such a relationship is required, it must be negotiated at the time the filesystem is mounted.
getFile
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
public boolean delete(VirtualFile mountPoint, VirtualFile target)
delete
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
true
if the file was deleted, false
if it failed for any reasonpublic long getSize(VirtualFile mountPoint, VirtualFile target)
getSize
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
public long getLastModified(VirtualFile mountPoint, VirtualFile target)
getLastModified
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
public boolean exists(VirtualFile mountPoint, VirtualFile target)
exists
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
true
if the file exists, false
otherwisepublic boolean isFile(VirtualFile mountPoint, VirtualFile target)
isFile
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
true
if the file exists and is a plain file, false
otherwisepublic boolean isDirectory(VirtualFile mountPoint, VirtualFile target)
isDirectory
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
true
if the file exists and is a directory, false
otherwisepublic List<String> getDirectoryEntries(VirtualFile mountPoint, VirtualFile target)
getDirectoryEntries
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
public CodeSigner[] getCodeSigners(VirtualFile mountPoint, VirtualFile target)
CodeSigner
s for a the virtual file.
getCodeSigners
in interface FileSystem
mountPoint
- the mount point of the filesystem instance (guaranteed to be a parent of target
)target
- the virtual file to act upon
CodeSigner
for the virtual file or null if not signed.public File getMountSource()
File
source provided at mount time.
getMountSource
in interface FileSystem
public void close() throws IOException
IOException
s.
close
in interface Closeable
close
in interface FileSystem
IOException
- if an I/O error occurs during close
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