Java Doc for AbstractFileSystem.java in  » Scripting » oscript-2.10.4 » oscript » fs » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » oscript 2.10.4 » oscript.fs 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   oscript.fs.AbstractFileSystem

All known Subclasses:   oscript.fs.LocalFileSystem,  oscript.fs.JarFileSystem,
AbstractFileSystem
abstract public class AbstractFileSystem (Code)
An interface implemented by something that can resolve AbstractFiles.
author:
   Rob Clark (rob@ti.com)
author:
  
version:
   1.17

Inner Class :protected static class BogusFile implements AbstractFile
Inner Class :public static class MountPointFile extends BogusFile

Field Summary
final public static  charSEPERATOR_CHAR
     The seperator character used for paths.
final protected static  booleanenableWindozeHacks
    


Method Summary
public static  Stringbasename(String path)
     Given a normalized path, return basename.
public static synchronized  Collectionchildren(String path)
     Get an iterator of the children of the specified file.
public static  Collectionchildren(AbstractFile file)
     Get an iterator of the children of the specified file.
abstract protected  CollectionchildrenInFileSystem(String mountPath, String path)
     Return an iterator of children of the specified path.
public static  Stringdirname(String path)
     Given a normalized path, return dirname.
abstract protected  voidflush()
     Flush any pending changes within this filesystem.
public static  StringgetCwd()
     Get the current working directory.
protected  longlastModified()
     Return the last modification time of the root of the mount point itself.
public static synchronized  voidmount(AbstractFileSystem fs, String path)
     Mount a new filesystem.
public static  Stringnormalize(String path)
     Normalize the path.
public static  Stringnormalize(String cwd, String path)
    
public static synchronized  AbstractFileresolve(String path)
     Try to load the specified file from one of the mounted filesystems.
abstract protected  AbstractFileresolveInFileSystem(String mountPath, String path)
     Try to resolve the specified path.
public static  voidsetCwd(String cwd)
     Set the current working directory.
protected static synchronized  voidtouchMountPoint(AbstractFileSystem fs)
     When a file is created/deleted in the topmost directory in a mounted file system, it needs some way to cause the timestamp on the directory(s) it is mounted into to change.

Field Detail
SEPERATOR_CHAR
final public static char SEPERATOR_CHAR(Code)
The seperator character used for paths. The implementation of the filesystem may translate this character into whatever is required for the native implementation of the filesystem.



enableWindozeHacks
final protected static boolean enableWindozeHacks(Code)





Method Detail
basename
public static String basename(String path)(Code)
Given a normalized path, return basename. Ie. the last component of the path.



children
public static synchronized Collection children(String path) throws IOException(Code)
Get an iterator of the children of the specified file. If the specified file is not a directory, this will return an empty iterator.
Parameters:
  path - the path to the file to get children of Collection of AbstractFile
See Also:   AbstractFileSystem.children(AbstractFile)



children
public static Collection children(AbstractFile file) throws IOException(Code)
Get an iterator of the children of the specified file. If the specified file is not a directory, this will return an empty iterator.
Parameters:
  file - the file to get children of Collection of AbstractFile
See Also:   AbstractFileSystem.children(String)



childrenInFileSystem
abstract protected Collection childrenInFileSystem(String mountPath, String path) throws IOException(Code)
Return an iterator of children of the specified path.
Parameters:
  mountPath - the path this fs is mounted at to resolve the requested file
Parameters:
  path - path to file, relative to mountPath a collection of AbstractFile



dirname
public static String dirname(String path)(Code)
Given a normalized path, return dirname. Ie. everything but the last component in the path.



flush
abstract protected void flush() throws IOException(Code)
Flush any pending changes within this filesystem.



getCwd
public static String getCwd()(Code)
Get the current working directory. string
See Also:   AbstractFileSystem.setCwd



lastModified
protected long lastModified() throws IOException(Code)
Return the last modification time of the root of the mount point itself. This is the same as the last modified time for the root of the filesystem.



mount
public static synchronized void mount(AbstractFileSystem fs, String path)(Code)
Mount a new filesystem. A filesystem can be mounted at any position within the virtual filesystem. A mounted filesystem could potentially eclipse a file. If multiple filesystems are mounted at the same point, the result is the union of all those filesystems.
Parameters:
  fs - the filesystem to mount
Parameters:
  path - the path to the location to mount (ex: "/")



normalize
public static String normalize(String path)(Code)
Normalize the path. This involves ensuring the path is fully qualified (begins with "/"), and gets rid of any extra "." and "/".



normalize
public static String normalize(String cwd, String path)(Code)



resolve
public static synchronized AbstractFile resolve(String path) throws IOException(Code)
Try to load the specified file from one of the mounted filesystems.
Parameters:
  path - the file to resolve
throws:
  IOException - if something goes wrong when reading file
See Also:   AbstractFileSystem.addScriptPath(AbstractFileSystem)



resolveInFileSystem
abstract protected AbstractFile resolveInFileSystem(String mountPath, String path) throws IOException(Code)
Try to resolve the specified path. If unresolved, return null. Note that this gets called under the synchronization of the abstract file system, so it does not need to be re-entrant.
Parameters:
  mountPath - the path this fs is mounted at to resolve the requested file
Parameters:
  path - path to file, relative to mountPath file or null



setCwd
public static void setCwd(String cwd) throws IOException(Code)
Set the current working directory. If the path is not an absolute path, it is postpended to the current cwd. If the path does not exist, or is not a directory, this will throw java.lang.IllegalArgumentException .
Parameters:
  cwd - the new current working directory
throws:
  IOException - if the specified path is invalid.
See Also:   AbstractFileSystem.getCwd



touchMountPoint
protected static synchronized void touchMountPoint(AbstractFileSystem fs) throws IOException(Code)
When a file is created/deleted in the topmost directory in a mounted file system, it needs some way to cause the timestamp on the directory(s) it is mounted into to change.
Parameters:
  fs - the filesystem that was modified



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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