lumis.portal.filesystem
Interface IFileSystemManager

All Known Implementing Classes:

FileSystemManager

public interface IFileSystemManager

Provides operations for manipulating the file system.

Since:

4.1.0

Method Summary

void	copyFile(PortalFile source, PortalFile destination) Performs a file copy.
void	lockFileForRead(File file) Locks a file for reading operations.
void	lockFileForWrite(File file) Locks a file for writing operations.
void	unlockFileForRead(File file) Unlocks a file locked by lockFileForRead(File).
void	unlockFileForWrite(File file) Unlocks a file locked by lockFileForWrite(File).
void	writeFile(PortalFile file, byte[] content) Writes content in the specified file.
void	writeFile(PortalFile file, InputStream content) Writes content in the specified file.

Method Detail

lockFileForRead

void lockFileForRead(File file)

Locks a file for reading operations. This lock is obeyed only by threads in the same JVM that also use a lock method available in this manager.

Many threads may acquire read locks simultaneously, but if a thread acquire a write lock for a file, no other thread can acquire any lock. If the file is already locked anyway that this thread cannot acquire the lock, it is blocked until the lock can be acquired.

unlockFileForRead(File) must be executed after this method. A try/finally block should be used in order to guarantee this.

Parameters:

file - the file to be locked.

Since:

4.1.0

See Also:

unlockFileForRead(File), lockFileForWrite(File)

unlockFileForRead

void unlockFileForRead(File file)

Unlocks a file locked by lockFileForRead(File).

Parameters:

file - the file to be unlocked.

Since:

4.1.0

See Also:

lockFileForRead(File)

lockFileForWrite

void lockFileForWrite(File file)

Locks a file for writing operations. This lock is obeyed only by threads in the same JVM that also use a lock method available in this manager.

Many threads may acquire read locks simultaneously, but if a thread acquire a write lock for a file, no other thread can acquire any lock. If the file is already locked anyway that this thread cannot acquire the lock, it is blocked until the lock can be acquired.

unlockFileForWrite(File) must be executed after this method. A try/finally block should be used in order to guarantee this.

Parameters:

file - the file to be locked.

Since:

4.1.0

See Also:

unlockFileForWrite(File), lockFileForRead(File)

unlockFileForWrite

void unlockFileForWrite(File file)

Unlocks a file locked by lockFileForWrite(File).

Parameters:

file - the file to be unlocked.

Since:

4.1.0

See Also:

lockFileForWrite(File)

writeFile

void writeFile(PortalFile file,
               byte[] content)
               throws IOException

Writes content in the specified file. The change is replicated across the cluster.

Parameters:

file - the file to write. If it already exists it is overwritten.

content - the content.

Throws:

IOException

Since:

4.1.0

writeFile

void writeFile(PortalFile file,
               InputStream content)
               throws IOException

Writes content in the specified file. The change is replicated across the cluster.

Parameters:

file - the file to write. If it already exists it is overwritten.

content - the content.

Throws:

IOException

Since:

4.1.0

copyFile

void copyFile(PortalFile source,
              PortalFile destination)
              throws IOException

Performs a file copy. The copy operation is repeated across the cluster.

Parameters:

source - the source file.

destination - the destination file. If it already exists it is overwritten.

Throws:

IOException

Since:

4.1.0