Package ghidra.framework.store.db

Class PackedDatabase

java.lang.Object

db.Database

ghidra.framework.store.db.PackedDatabase

public class PackedDatabase
extends Database

PackedDatabase provides a packed form of Database which compresses a single version into a file.
When opening a packed database, a PackedDBHandle is returned after first expanding the file into a temporary Database.

Nested Class Summary

Nested classes/interfaces inherited from class db.Database

Database.DBBufferFileManager

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	READ_ONLY_DIRECTORY_LOCK_FILE	Presence of the directory lock file will prevent the creation or modification of any packed database files contained within that directory or any sub-directory.

Fields inherited from class db.Database

bfMgr, CHANGE_FILE_PREFIX, CUMULATIVE_CHANGE_FILENAME, CUMULATIVE_MODMAP_FILENAME, currentVersion, DATABASE_FILE_PREFIX, dbDir, dbDirCreated, dbFileListener, isCheckOutCopy, isVersioned, lastModified, minVersion, syncObject, updateAllowed, VERSION_FILE_PREFIX

Method Summary

Modifier and Type	Method	Description
static void	cleanupOldTempDatabases()	Attempt to remove all old temporary databases.
void	delete()	Deletes the storage file associated with this packed database.
static void	delete(java.io.File packedDbFile)	Deletes the storage file associated with this packed database.
void	dispose()	Free resources consumed by this object.
protected void	finalize()
java.lang.String	getContentType()	Returns the user defined content type associated with this database.
static PackedDatabase	getPackedDatabase(ResourceFile packedDbFile, boolean neverCache, TaskMonitor monitor)	Get a packed database whose unpacking may be cached if possible provided doNotCache is false.
static PackedDatabase	getPackedDatabase(java.io.File packedDbFile, boolean neverCache, TaskMonitor monitor)	Get a packed database whose unpacking may be cached if possible provided doNotCache is false.
static PackedDatabase	getPackedDatabase(java.io.File packedDbFile, TaskMonitor monitor)	Get a packed database which whose unpacking will be cached if possible
ResourceFile	getPackedFile()	Returns the storage file associated with this packed database.
boolean	isReadOnly()
static boolean	isReadOnlyPDBDirectory(ResourceFile directory)	Check for the presence of directory read-only lock
DBHandle	open(TaskMonitor monitor)	Open the stored database for non-update use.
DBHandle	openForUpdate(TaskMonitor monitor)	Open the stored database for update use.
static void	packDatabase(DBHandle dbh, java.lang.String itemName, java.lang.String contentType, java.io.File outputFile, TaskMonitor monitor)	Serialize (i.e., pack) an open database into the specified outputFile.
static void	unpackDatabase(BufferFileManager bfMgr, long checkinId, java.io.File packedFile, TaskMonitor monitor)	Create a new Database with data provided by an ItemDeserializer.

Methods inherited from class db.Database

deleteDir, getCurrentVersion, lastModified, length, refresh, scanFiles, setSynchronizationObject

Methods inherited from class java.lang.Object

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

Field Detail

READ_ONLY_DIRECTORY_LOCK_FILE

public static final java.lang.String READ_ONLY_DIRECTORY_LOCK_FILE

Presence of the directory lock file will prevent the creation or modification of any packed database files contained within that directory or any sub-directory.

See Also:

Constant Field Values

Method Detail

isReadOnly

public boolean isReadOnly()

getPackedDatabase

public static PackedDatabase getPackedDatabase(java.io.File packedDbFile,
                                               TaskMonitor monitor)
                                        throws java.io.IOException,
                                               CancelledException

Get a packed database which whose unpacking will be cached if possible

Parameters:

packedDbFile -

monitor -

Returns:

packed database which corresponds to the specified packedDbFile

Throws:

java.io.IOException

CancelledException

getPackedDatabase

public static PackedDatabase getPackedDatabase(java.io.File packedDbFile,
                                               boolean neverCache,
                                               TaskMonitor monitor)
                                        throws java.io.IOException,
                                               CancelledException

Get a packed database whose unpacking may be cached if possible provided doNotCache is false.

Parameters:

packedDbFile -

neverCache - if true unpacking will never be cache.

monitor -

Returns:

packed database which corresponds to the specified packedDbFile

Throws:

java.io.IOException

CancelledException

getPackedDatabase

public static PackedDatabase getPackedDatabase(ResourceFile packedDbFile,
                                               boolean neverCache,
                                               TaskMonitor monitor)
                                        throws java.io.IOException,
                                               CancelledException

Get a packed database whose unpacking may be cached if possible provided doNotCache is false.

Parameters:

packedDbFile -

neverCache - if true unpacking will never be cache.

monitor -

Returns:

packed database which corresponds to the specified packedDbFile

Throws:

java.io.IOException

CancelledException

isReadOnlyPDBDirectory

public static boolean isReadOnlyPDBDirectory(ResourceFile directory)

Check for the presence of directory read-only lock

Parameters:

directory -

Returns:

true if read-only lock exists+

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

dispose

public void dispose()

Free resources consumed by this object. If there is an associated database handle it will be closed.

getContentType

public java.lang.String getContentType()

Returns the user defined content type associated with this database.

getPackedFile

public ResourceFile getPackedFile()

Returns the storage file associated with this packed database.

delete

public void delete()
            throws java.io.IOException

Deletes the storage file associated with this packed database. This method should not be called while the database is open, if it is an attempt will be made to close the handle.

Throws:

java.io.IOException

delete

public static void delete(java.io.File packedDbFile)
                   throws java.io.IOException

Deletes the storage file associated with this packed database.

Throws:

java.io.IOException

unpackDatabase

public static void unpackDatabase(BufferFileManager bfMgr,
                                  long checkinId,
                                  java.io.File packedFile,
                                  TaskMonitor monitor)
                           throws java.io.IOException,
                                  CancelledException

Create a new Database with data provided by an ItemDeserializer.

Parameters:

bfMgr - the buffer manager for the database

checkinId - the check-in id

packedFile - the file to unpack

monitor - the task monitor

Throws:

CancelledException

java.io.IOException

packDatabase

public static void packDatabase(DBHandle dbh,
                                java.lang.String itemName,
                                java.lang.String contentType,
                                java.io.File outputFile,
                                TaskMonitor monitor)
                         throws CancelledException,
                                java.io.IOException

Serialize (i.e., pack) an open database into the specified outputFile.

Parameters:

dbh - open database handle

itemName - item name to associate with packed content

contentType - supported content type

outputFile - packed output file to be created

monitor - progress monitor

Throws:

java.io.IOException

CancelledException - if monitor cancels operation

open

public DBHandle open(TaskMonitor monitor)
              throws CancelledException,
                     java.io.IOException

Description copied from class: Database

Open the stored database for non-update use. The returned handle does not support the Save operation.

Overrides:

open in class Database

Parameters:

monitor - task monitor (may be null)

Returns:

database handle

Throws:

CancelledException - if cancelled by monitor

FileInUseException - thrown if unable to obtain the required database lock(s).

java.io.IOException - thrown if IO error occurs.

openForUpdate

public DBHandle openForUpdate(TaskMonitor monitor)
                       throws CancelledException,
                              java.io.IOException

Description copied from class: Database

Open the stored database for update use.

Overrides:

openForUpdate in class Database

Parameters:

monitor - task monitor (may be null)

Returns:

buffer file

Throws:

CancelledException - if cancelled by monitor

FileInUseException - thrown if unable to obtain the required database lock(s).

java.io.IOException - thrown if IO error occurs.

cleanupOldTempDatabases

public static void cleanupOldTempDatabases()

Attempt to remove all old temporary databases. Those still open by an existing process should not be removed by the operating system.