Package com.intellij.openapi.vfs.newvfs.persistent

Class PersistentFSImpl

java.lang.Object

com.intellij.openapi.vfs.newvfs.ManagingFS

com.intellij.openapi.vfs.newvfs.persistent.PersistentFS

com.intellij.openapi.vfs.newvfs.persistent.PersistentFSImpl

All Implemented Interfaces:

Disposable, FileSystemInterface

public final class PersistentFSImpl
extends PersistentFS
implements Disposable

Nested Class Summary

Nested classes/interfaces inherited from class com.intellij.openapi.vfs.newvfs.persistent.PersistentFS

PersistentFS.Attributes

Nested classes/interfaces inherited from interface com.intellij.openapi.Disposable

Disposable.Parent

Field Summary

Fields inherited from interface com.intellij.openapi.vfs.newvfs.FileSystemInterface

DEFAULT_LENGTH, DEFAULT_TIMESTAMP

Constructor Summary

Constructors

Constructor and Description
PersistentFSImpl()

Method Summary

Modifier and Type	Method and Description
int	acquireContent(VirtualFile file)
boolean	areChildrenLoaded(VirtualFile dir)
void	cleanPersistedContent(int id)
void	cleanPersistedContents()
void	clearIdCache()
byte []	contentsToByteArray(int contentId)
byte []	contentsToByteArray(VirtualFile file)
byte []	contentsToByteArray(VirtualFile file, boolean cacheContent)
VirtualFile	copyFile(java.lang.Object requestor, VirtualFile file, VirtualFile parent, java.lang.String name)
VirtualFile	createChildDirectory(java.lang.Object requestor, VirtualFile parent, java.lang.String dir)
VirtualFile	createChildFile(java.lang.Object requestor, VirtualFile parent, java.lang.String file)
void	deleteFile(java.lang.Object requestor, VirtualFile file)
void	dispose() Usually not invoked directly, see class javadoc.
boolean	exists(VirtualFile fileOrDirectory)
NewVirtualFile	findFileById(int id)
NewVirtualFile	findFileByIdIfCached(int id)
VirtualFileSystemEntry	findRoot(java.lang.String path, NewVirtualFileSystem fs)
VirtualFileSystemEntry	getCachedDir(int id)
byte []	getContentHashIfStored(VirtualFile file)
long	getCreationTimestamp()
int	getCurrentContentId(VirtualFile file)
int	getFileAttributes(int id)
int	getFilesystemModificationCount()
int	getId(VirtualFile parent, java.lang.String childName, NewVirtualFileSystem fs)
java.io.InputStream	getInputStream(VirtualFile file) Does NOT strip the BOM from the beginning of the stream, unlike the VirtualFile.getInputStream()
long	getLastRecordedLength(VirtualFile file)
long	getLength(VirtualFile file)
VirtualFile []	getLocalRoots()
int	getModificationCount()
int	getModificationCount(VirtualFile file)
java.lang.String	getName(int id)
VirtualFileSystemEntry	getOrCacheDir(int id, VirtualDirectoryImpl newDir)
java.io.OutputStream	getOutputStream(VirtualFile file, java.lang.Object requestor, long modStamp, long timeStamp) Does NOT add the BOM to the beginning of the stream, unlike the VirtualFile.getOutputStream(Object)
VirtualFile []	getRoots()
VirtualFile []	getRoots(NewVirtualFileSystem fs)
int	getStructureModificationCount()
long	getTimeStamp(VirtualFile file)
void	incStructuralModificationCount()
boolean	isDirectory(VirtualFile file)
boolean	isHidden(VirtualFile file)
boolean	isSymLink(VirtualFile file)
boolean	isWritable(VirtualFile file)
java.lang.String []	list(VirtualFile file)
FSRecords.NameId []	listAll(VirtualFile file)
java.lang.String []	listPersisted(VirtualFile parent)
boolean	mayHaveChildren(int id)
void	moveFile(java.lang.Object requestor, VirtualFile file, VirtualFile newParent)
void	processEvents(java.util.List<? extends VFileEvent> events)
java.io.DataInputStream	readAttribute(VirtualFile file, FileAttribute att)
void	releaseContent(int contentId)
void	renameFile(java.lang.Object requestor, VirtualFile file, java.lang.String newName)
java.lang.String	resolveSymLink(VirtualFile file)
void	setTimeStamp(VirtualFile file, long modStamp)
void	setWritable(VirtualFile file, boolean writableFlag)
int	storeUnlinkedContent(byte [] bytes)
java.lang.String	toString()
boolean	wereChildrenAccessed(VirtualFile dir)
java.io.DataOutputStream	writeAttribute(VirtualFile file, FileAttribute att)

Methods inherited from class com.intellij.openapi.vfs.newvfs.persistent.PersistentFS

getInstance, isDirectory, isHidden, isSpecialFile, isSymLink, isWritable, replaceWithNativeFS, toFileAttributes

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentFSImpl

public PersistentFSImpl()

Method Detail

dispose

public void dispose()

Description copied from interface: Disposable

Usually not invoked directly, see class javadoc.

Specified by:

dispose in interface Disposable

areChildrenLoaded

public boolean areChildrenLoaded(VirtualFile dir)

Specified by:

areChildrenLoaded in class ManagingFS

getCreationTimestamp

public long getCreationTimestamp()

Specified by:

getCreationTimestamp in class ManagingFS

getOrCacheDir

public VirtualFileSystemEntry getOrCacheDir(int id,
                                            VirtualDirectoryImpl newDir)

getCachedDir

public VirtualFileSystemEntry getCachedDir(int id)

wereChildrenAccessed

public boolean wereChildrenAccessed(VirtualFile dir)

Specified by:

wereChildrenAccessed in class ManagingFS

list

public java.lang.String [] list(VirtualFile file)

Specified by:

list in interface FileSystemInterface

listPersisted

public java.lang.String [] listPersisted(VirtualFile parent)

Specified by:

listPersisted in class PersistentFS

listAll

public FSRecords.NameId [] listAll(VirtualFile file)

Specified by:

listAll in class PersistentFS

readAttribute

public java.io.DataInputStream readAttribute(VirtualFile file,
                                             FileAttribute att)

Specified by:

readAttribute in class ManagingFS

writeAttribute

public java.io.DataOutputStream writeAttribute(VirtualFile file,
                                               FileAttribute att)

Specified by:

writeAttribute in class ManagingFS

storeUnlinkedContent

public int storeUnlinkedContent(byte [] bytes)

Specified by:

storeUnlinkedContent in class PersistentFS

getModificationCount

public int getModificationCount(VirtualFile file)

Specified by:

getModificationCount in class ManagingFS

Returns:

a number that's incremented every time something changes for the file: name, size, flags, content. This number is persisted between IDE sessions and so it'll always increase. This method invocation means disk access, so it's not terribly cheap.

getModificationCount

public int getModificationCount()

Specified by:

getModificationCount in class ManagingFS

Returns:

a number that's incremented every time something changes in the VFS, i.e. file hierarchy, names, flags, attributes, contents. This only counts modifications done in current IDE session.

See Also:

ManagingFS.getStructureModificationCount(), ManagingFS.getFilesystemModificationCount()

getStructureModificationCount

public int getStructureModificationCount()

Specified by:

getStructureModificationCount in class ManagingFS

Returns:

a number that's incremented every time something changes in the VFS structure, i.e. file hierarchy or names. This only counts modifications done in current IDE session.

See Also:

ManagingFS.getModificationCount()

incStructuralModificationCount

public void incStructuralModificationCount()

getFilesystemModificationCount

public int getFilesystemModificationCount()

Specified by:

getFilesystemModificationCount in class ManagingFS

Returns:

a number that's incremented every time modification count for some file is advanced, @see ManagingFS.getModificationCount(VirtualFile). This number is persisted between IDE sessions and so it'll always increase. This method invocation means disk access, so it's not terribly cheap.

getFileAttributes

public int getFileAttributes(int id)

Specified by:

getFileAttributes in class PersistentFS

isDirectory

public boolean isDirectory(VirtualFile file)

Specified by:

isDirectory in interface FileSystemInterface

exists

public boolean exists(VirtualFile fileOrDirectory)

Specified by:

exists in interface FileSystemInterface

getTimeStamp

public long getTimeStamp(VirtualFile file)

Specified by:

getTimeStamp in interface FileSystemInterface

setTimeStamp

public void setTimeStamp(VirtualFile file,
                         long modStamp)
                  throws java.io.IOException

Specified by:

setTimeStamp in interface FileSystemInterface

Throws:

java.io.IOException

isSymLink

public boolean isSymLink(VirtualFile file)

Specified by:

isSymLink in interface FileSystemInterface

resolveSymLink

public java.lang.String resolveSymLink(VirtualFile file)

Specified by:

resolveSymLink in interface FileSystemInterface

isWritable

public boolean isWritable(VirtualFile file)

Specified by:

isWritable in interface FileSystemInterface

isHidden

public boolean isHidden(VirtualFile file)

Specified by:

isHidden in class PersistentFS

setWritable

public void setWritable(VirtualFile file,
                        boolean writableFlag)
                 throws java.io.IOException

Specified by:

setWritable in interface FileSystemInterface

Throws:

java.io.IOException

getId

public int getId(VirtualFile parent,
                 java.lang.String childName,
                 NewVirtualFileSystem fs)

Specified by:

getId in class PersistentFS

getLength

public long getLength(VirtualFile file)

Specified by:

getLength in interface FileSystemInterface

getLastRecordedLength

public long getLastRecordedLength(VirtualFile file)

Specified by:

getLastRecordedLength in class PersistentFS

copyFile

public VirtualFile copyFile(java.lang.Object requestor,
                            VirtualFile file,
                            VirtualFile parent,
                            java.lang.String name)
                     throws java.io.IOException

Specified by:

copyFile in interface FileSystemInterface

Throws:

java.io.IOException

createChildDirectory

public VirtualFile createChildDirectory(java.lang.Object requestor,
                                        VirtualFile parent,
                                        java.lang.String dir)
                                 throws java.io.IOException

Specified by:

createChildDirectory in interface FileSystemInterface

Throws:

java.io.IOException

createChildFile

public VirtualFile createChildFile(java.lang.Object requestor,
                                   VirtualFile parent,
                                   java.lang.String file)
                            throws java.io.IOException

Specified by:

createChildFile in interface FileSystemInterface

Throws:

java.io.IOException

deleteFile

public void deleteFile(java.lang.Object requestor,
                       VirtualFile file)
                throws java.io.IOException

Specified by:

deleteFile in interface FileSystemInterface

Throws:

java.io.IOException

renameFile

public void renameFile(java.lang.Object requestor,
                       VirtualFile file,
                       java.lang.String newName)
                throws java.io.IOException

Specified by:

renameFile in interface FileSystemInterface

Throws:

java.io.IOException

contentsToByteArray

public byte [] contentsToByteArray(VirtualFile file)
                            throws java.io.IOException

Specified by:

contentsToByteArray in interface FileSystemInterface

Throws:

java.io.IOException

contentsToByteArray

public byte [] contentsToByteArray(VirtualFile file,
                                   boolean cacheContent)
                            throws java.io.IOException

Specified by:

contentsToByteArray in class PersistentFS

Throws:

java.io.IOException

contentsToByteArray

public byte [] contentsToByteArray(int contentId)
                            throws java.io.IOException

Specified by:

contentsToByteArray in class PersistentFS

Throws:

java.io.IOException

getInputStream

public java.io.InputStream getInputStream(VirtualFile file)
                                   throws java.io.IOException

Description copied from interface: FileSystemInterface

Does NOT strip the BOM from the beginning of the stream, unlike the VirtualFile.getInputStream()

Specified by:

getInputStream in interface FileSystemInterface

Throws:

java.io.IOException

getContentHashIfStored

public byte [] getContentHashIfStored(VirtualFile file)

getOutputStream

public java.io.OutputStream getOutputStream(VirtualFile file,
                                            java.lang.Object requestor,
                                            long modStamp,
                                            long timeStamp)

Description copied from interface: FileSystemInterface

Does NOT add the BOM to the beginning of the stream, unlike the VirtualFile.getOutputStream(Object)

Specified by:

getOutputStream in interface FileSystemInterface

acquireContent

public int acquireContent(VirtualFile file)

Specified by:

acquireContent in class PersistentFS

releaseContent

public void releaseContent(int contentId)

Specified by:

releaseContent in class PersistentFS

getCurrentContentId

public int getCurrentContentId(VirtualFile file)

Specified by:

getCurrentContentId in class PersistentFS

moveFile

public void moveFile(java.lang.Object requestor,
                     VirtualFile file,
                     VirtualFile newParent)
              throws java.io.IOException

Specified by:

moveFile in interface FileSystemInterface

Throws:

java.io.IOException

processEvents

public void processEvents(java.util.List<? extends VFileEvent> events)

Specified by:

processEvents in class PersistentFS

findRoot

public VirtualFileSystemEntry findRoot(java.lang.String path,
                                       NewVirtualFileSystem fs)

Specified by:

findRoot in class ManagingFS

clearIdCache

public void clearIdCache()

Specified by:

clearIdCache in class PersistentFS

findFileById

public NewVirtualFile findFileById(int id)

Specified by:

findFileById in class ManagingFS

findFileByIdIfCached

public NewVirtualFile findFileByIdIfCached(int id)

Specified by:

findFileByIdIfCached in class PersistentFS

getRoots

public VirtualFile [] getRoots()

Specified by:

getRoots in class ManagingFS

getRoots

public VirtualFile [] getRoots(NewVirtualFileSystem fs)

Specified by:

getRoots in class ManagingFS

getLocalRoots

public VirtualFile [] getLocalRoots()

Specified by:

getLocalRoots in class ManagingFS

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getName

public java.lang.String getName(int id)

Specified by:

getName in class PersistentFS

cleanPersistedContent

public void cleanPersistedContent(int id)

cleanPersistedContents

public void cleanPersistedContents()

mayHaveChildren

public boolean mayHaveChildren(int id)

Specified by:

mayHaveChildren in class PersistentFS