VolD: de.zib.vold.backend.WriteLogger Class Reference

VolD 0.1

Incomplete implementation of PartitionedDirectoryBackend which serves as logfile. More...

Inheritance diagram for de.zib.vold.backend.WriteLogger:

Collaboration diagram for de.zib.vold.backend.WriteLogger:

List of all members.

Public Member Functions
	WriteLogger (String logfilename)
	Construct a WriteLogger with all necessary informations.
	WriteLogger ()
	Construct a BabuDirectory without initialization.
void	setLogfile (String logfilename)
	Set the path to the logfile.
void	checkState ()
	Internal method which acts as part of the guard of all public methods.
void	open ()
	Open the database.
void	close ()
	Close the database.
boolean	isopen ()
	Query the state of the database.
void	insert (int partition, List< String > key, List< String > value)
	Log the request for an insert.
void	delete (int partition, List< String > key)
	Log a request for a delete.
List< String >	lookup (int partition, List< String > key)
	Not implemented.
Map< List< String >, List < String > >	prefixlookup (int partition, List< String > key)
	Not implemented.
Protected Attributes
final Logger	log = LoggerFactory.getLogger( this.getClass() )
Private Attributes
String	logfilename
FileWriter	logfile
BufferedWriter	out

Detailed Description

Incomplete implementation of PartitionedDirectoryBackend which serves as logfile.

This backend simply log all write requests on the database to a single logfile.

See also:: PartitionedDirectoryBackend

Author:: Jörg Bachmann (bachmann@zib.de)

Definition at line 28 of file WriteLogger.java.

Constructor & Destructor Documentation

de.zib.vold.backend.WriteLogger.WriteLogger ( String logfilename )

Construct a WriteLogger with all necessary informations.

Note:: This constructor will not open the interface. This still has to be done using the open method.

Parameters:

logfilename The path to the logfile.

Definition at line 44 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.logfile, de.zib.vold.backend.WriteLogger.logfilename, and de.zib.vold.backend.WriteLogger.out.

de.zib.vold.backend.WriteLogger.WriteLogger ( )

Construct a BabuDirectory without initialization.

Definition at line 55 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.logfile, de.zib.vold.backend.WriteLogger.logfilename, and de.zib.vold.backend.WriteLogger.out.

Member Function Documentation

void de.zib.vold.backend.WriteLogger.checkState ( )

Internal method which acts as part of the guard of all public methods.

Definition at line 88 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.logfilename.

Referenced by de.zib.vold.backend.WriteLogger.close(), de.zib.vold.backend.WriteLogger.delete(), de.zib.vold.backend.WriteLogger.insert(), and de.zib.vold.backend.WriteLogger.open().

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void de.zib.vold.backend.WriteLogger.close ( )

Close the database.

Note:: The annotation PreDestroy is used by the spring framework to call this method right before it will be destroyed.

Implements de.zib.vold.backend.PartitionedDirectoryBackend.

Definition at line 142 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.checkState(), de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.log, de.zib.vold.backend.WriteLogger.logfile, and de.zib.vold.backend.WriteLogger.out.

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void de.zib.vold.backend.WriteLogger.delete	(	int	partition,
		List< String >	key
	)

Log a request for a delete.

Parameters:

partition	The partition to delete the key from.
key	The key to delete.

Exceptions:

VoldException

Implements de.zib.vold.backend.PartitionedDirectory.

Definition at line 231 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.checkState(), de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.log, and de.zib.vold.backend.WriteLogger.out.

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void de.zib.vold.backend.WriteLogger.insert	(	int	partition,
		List< String >	key,
		List< String >	value
	)

Log the request for an insert.

Parameters:

partition	The partition to store the key in.
key	The key to store.
param	The values to store.

Exceptions:

VoldException

Implements de.zib.vold.backend.PartitionedDirectory.

Definition at line 197 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.checkState(), de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.log, and de.zib.vold.backend.WriteLogger.out.

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boolean de.zib.vold.backend.WriteLogger.isopen ( )

Query the state of the database.

Returns:: true iff the logfile is set and open.

Implements de.zib.vold.backend.PartitionedDirectoryBackend.

Definition at line 182 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.logfile, and de.zib.vold.backend.WriteLogger.out.

Referenced by de.zib.vold.backend.WriteLogger.close(), de.zib.vold.backend.WriteLogger.delete(), de.zib.vold.backend.WriteLogger.insert(), de.zib.vold.backend.WriteLogger.open(), and de.zib.vold.backend.WriteLogger.setLogfile().

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List< String > de.zib.vold.backend.WriteLogger.lookup	(	int	partition,
		List< String >	key
	)

Not implemented.

Implements de.zib.vold.backend.PartitionedDirectory.

Definition at line 260 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.log.

void de.zib.vold.backend.WriteLogger.open ( )

Open the database.

Note:: The annotation PostConstruct is used by the spring framework to call this method right after all properties have been set.

Implements de.zib.vold.backend.PartitionedDirectoryBackend.

Definition at line 105 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.checkState(), de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.log, de.zib.vold.backend.WriteLogger.logfile, de.zib.vold.backend.WriteLogger.logfilename, and de.zib.vold.backend.WriteLogger.out.

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Map< List< String >, List< String > > de.zib.vold.backend.WriteLogger.prefixlookup	(	int	partition,
		List< String >	key
	)

Not implemented.

Implements de.zib.vold.backend.PartitionedDirectory.

Definition at line 274 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.log.

void de.zib.vold.backend.WriteLogger.setLogfile ( String logfilename )

Set the path to the logfile.

Note:: If the writelogger is already opened, the properties will only take effect on restart (close and immediate open).

Parameters:

logfilename The path to the logfile.

Definition at line 72 of file WriteLogger.java.

References de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.log, and de.zib.vold.backend.WriteLogger.logfilename.

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Member Data Documentation

final Logger de.zib.vold.backend.WriteLogger.log = LoggerFactory.getLogger( this.getClass() ) [protected]

Definition at line 30 of file WriteLogger.java.

Referenced by de.zib.vold.backend.WriteLogger.close(), de.zib.vold.backend.WriteLogger.delete(), de.zib.vold.backend.WriteLogger.insert(), de.zib.vold.backend.WriteLogger.lookup(), de.zib.vold.backend.WriteLogger.open(), de.zib.vold.backend.WriteLogger.prefixlookup(), and de.zib.vold.backend.WriteLogger.setLogfile().

FileWriter de.zib.vold.backend.WriteLogger.logfile [private]

Definition at line 33 of file WriteLogger.java.

Referenced by de.zib.vold.backend.WriteLogger.close(), de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.open(), and de.zib.vold.backend.WriteLogger.WriteLogger().

String de.zib.vold.backend.WriteLogger.logfilename [private]

Definition at line 32 of file WriteLogger.java.

Referenced by de.zib.vold.backend.WriteLogger.checkState(), de.zib.vold.backend.WriteLogger.open(), de.zib.vold.backend.WriteLogger.setLogfile(), and de.zib.vold.backend.WriteLogger.WriteLogger().

BufferedWriter de.zib.vold.backend.WriteLogger.out [private]

Definition at line 34 of file WriteLogger.java.

Referenced by de.zib.vold.backend.WriteLogger.close(), de.zib.vold.backend.WriteLogger.delete(), de.zib.vold.backend.WriteLogger.insert(), de.zib.vold.backend.WriteLogger.isopen(), de.zib.vold.backend.WriteLogger.open(), and de.zib.vold.backend.WriteLogger.WriteLogger().

The documentation for this class was generated from the following file:

server/src/main/java/de/zib/vold/backend/WriteLogger.java

de
zib
vold
backend
WriteLogger
Generated on Tue Nov 29 2011 19:01:41 for VolD by 1.7.3