org.apache.geronimo.transaction.log

Class HOWLLog

java.lang.Object

org.apache.geronimo.transaction.log.HOWLLog

All Implemented Interfaces:

TransactionLog

public class HOWLLog
extends Object
implements TransactionLog

Constructor Summary

Constructors

Constructor and Description
HOWLLog(String bufferClassName, int bufferSize, boolean checksumEnabled, boolean adler32Checksum, int flushSleepTimeMilliseconds, String logFileDir, String logFileExt, String logFileName, int maxBlocksPerFile, int maxBuffers, int maxLogFiles, int minBuffers, int threadsWaitingForceThreshold, boolean flushPartialBuffers, XidFactory xidFactory, File serverBaseDir)
HOWLLog(String bufferClassName, int bufferSize, boolean checksumEnabled, boolean adler32Checksum, int flushSleepTimeMilliseconds, String logFileDir, String logFileExt, String logFileName, int maxBlocksPerFile, int maxBuffers, int maxLogFiles, int minBuffers, int threadsWaitingForceThreshold, XidFactory xidFactory, File serverBaseDir)

Method Summary

Modifier and Type	Method and Description
void	begin(Xid xid)
void	commit(Xid xid, Object logMark)
void	doFail()
void	doStart()
void	doStop()
int	getAverageBytesPerForce()
int	getAverageForceTime()
String	getBufferClassName()
int	getBufferSizeKBytes()
int	getFlushSleepTimeMilliseconds()
String	getLogFileDir()
String	getLogFileExt()
String	getLogFileName()
int	getMaxBlocksPerFile()
int	getMaxBuffers()
int	getMaxLogFiles()
int	getMinBuffers()
int	getThreadsWaitingForceThreshold()
String	getXMLStats()
boolean	isAdler32ChecksumEnabled()
boolean	isChecksumEnabled()
boolean	isFlushPartialBuffers()
Object	prepare(Xid xid, List<? extends TransactionBranchInfo> branches) log prepare for the global xid xid and the list of TransactionBranchInfo branches
Collection<Recovery.XidBranchesPair>	recover(XidFactory xidFactory) Recovers the log, returning a map of (top level) xid to List of TransactionBranchInfo for the branches.
void	rollback(Xid xid, Object logMark)
void	setAdler32Checksum(boolean checksumOption)
void	setBufferClassName(String bufferClassName)
void	setBufferSizeKBytes(int bufferSize)
void	setChecksumEnabled(boolean checksumOption)
void	setFlushPartialBuffers(boolean flushPartialBuffers)
void	setFlushSleepTimeMilliseconds(int flushSleepTime)
void	setLogFileDir(String logDirName)
void	setLogFileExt(String logFileExt)
void	setLogFileName(String logFileName)
void	setMaxBlocksPerFile(int maxBlocksPerFile)
void	setMaxBuffers(int maxBuffers)
void	setMaxLogFiles(int maxLogFiles)
void	setMinBuffers(int minBuffers)
void	setThreadsWaitingForceThreshold(int threadsWaitingForceThreshold)

Methods inherited from class java.lang.Object

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

Constructor Detail

HOWLLog

public HOWLLog(String bufferClassName,
               int bufferSize,
               boolean checksumEnabled,
               boolean adler32Checksum,
               int flushSleepTimeMilliseconds,
               String logFileDir,
               String logFileExt,
               String logFileName,
               int maxBlocksPerFile,
               int maxBuffers,
               int maxLogFiles,
               int minBuffers,
               int threadsWaitingForceThreshold,
               XidFactory xidFactory,
               File serverBaseDir)
        throws IOException,
               org.objectweb.howl.log.LogConfigurationException

Throws:

IOException

org.objectweb.howl.log.LogConfigurationException

HOWLLog

public HOWLLog(String bufferClassName,
               int bufferSize,
               boolean checksumEnabled,
               boolean adler32Checksum,
               int flushSleepTimeMilliseconds,
               String logFileDir,
               String logFileExt,
               String logFileName,
               int maxBlocksPerFile,
               int maxBuffers,
               int maxLogFiles,
               int minBuffers,
               int threadsWaitingForceThreshold,
               boolean flushPartialBuffers,
               XidFactory xidFactory,
               File serverBaseDir)
        throws IOException,
               org.objectweb.howl.log.LogConfigurationException

Throws:

IOException

org.objectweb.howl.log.LogConfigurationException

Method Detail

getLogFileDir

public String getLogFileDir()

setLogFileDir

public void setLogFileDir(String logDirName)

getLogFileExt

public String getLogFileExt()

setLogFileExt

public void setLogFileExt(String logFileExt)

getLogFileName

public String getLogFileName()

setLogFileName

public void setLogFileName(String logFileName)

isChecksumEnabled

public boolean isChecksumEnabled()

setChecksumEnabled

public void setChecksumEnabled(boolean checksumOption)

isAdler32ChecksumEnabled

public boolean isAdler32ChecksumEnabled()

setAdler32Checksum

public void setAdler32Checksum(boolean checksumOption)

getBufferSizeKBytes

public int getBufferSizeKBytes()

setBufferSizeKBytes

public void setBufferSizeKBytes(int bufferSize)
                         throws org.objectweb.howl.log.LogConfigurationException

Throws:

org.objectweb.howl.log.LogConfigurationException

getBufferClassName

public String getBufferClassName()

setBufferClassName

public void setBufferClassName(String bufferClassName)

getMaxBuffers

public int getMaxBuffers()

setMaxBuffers

public void setMaxBuffers(int maxBuffers)
                   throws org.objectweb.howl.log.LogConfigurationException

Throws:

org.objectweb.howl.log.LogConfigurationException

getMinBuffers

public int getMinBuffers()

setMinBuffers

public void setMinBuffers(int minBuffers)
                   throws org.objectweb.howl.log.LogConfigurationException

Throws:

org.objectweb.howl.log.LogConfigurationException

getFlushSleepTimeMilliseconds

public int getFlushSleepTimeMilliseconds()

setFlushSleepTimeMilliseconds

public void setFlushSleepTimeMilliseconds(int flushSleepTime)

getThreadsWaitingForceThreshold

public int getThreadsWaitingForceThreshold()

setThreadsWaitingForceThreshold

public void setThreadsWaitingForceThreshold(int threadsWaitingForceThreshold)

getMaxBlocksPerFile

public int getMaxBlocksPerFile()

setMaxBlocksPerFile

public void setMaxBlocksPerFile(int maxBlocksPerFile)

getMaxLogFiles

public int getMaxLogFiles()

setMaxLogFiles

public void setMaxLogFiles(int maxLogFiles)

isFlushPartialBuffers

public boolean isFlushPartialBuffers()

setFlushPartialBuffers

public void setFlushPartialBuffers(boolean flushPartialBuffers)

doStart

public void doStart()
             throws Exception

Throws:

Exception

doStop

public void doStop()
            throws Exception

Throws:

Exception

doFail

public void doFail()

begin

public void begin(Xid xid)
           throws LogException

Specified by:

begin in interface TransactionLog

Throws:

LogException

prepare

public Object prepare(Xid xid,
                      List<? extends TransactionBranchInfo> branches)
               throws LogException

Description copied from interface: TransactionLog

log prepare for the global xid xid and the list of TransactionBranchInfo branches

Specified by:

prepare in interface TransactionLog

Parameters:

xid - global xid for the transactions

branches - List of TransactionBranchInfo

Returns:

log mark to use in commit/rollback calls.

Throws:

LogException - on error

commit

public void commit(Xid xid,
                   Object logMark)
            throws LogException

Specified by:

commit in interface TransactionLog

Throws:

LogException

rollback

public void rollback(Xid xid,
                     Object logMark)
              throws LogException

Specified by:

rollback in interface TransactionLog

Throws:

LogException

recover

public Collection<Recovery.XidBranchesPair> recover(XidFactory xidFactory)
                                             throws LogException

Description copied from interface: TransactionLog

Recovers the log, returning a map of (top level) xid to List of TransactionBranchInfo for the branches. Uses the XidFactory to reconstruct the xids.

Specified by:

recover in interface TransactionLog

Parameters:

xidFactory - Xid factory

Returns:

Map of recovered xid to List of TransactionBranchInfo representing the branches.

Throws:

LogException - on error

getXMLStats

public String getXMLStats()

Specified by:

getXMLStats in interface TransactionLog

getAverageForceTime

public int getAverageForceTime()

Specified by:

getAverageForceTime in interface TransactionLog

getAverageBytesPerForce

public int getAverageBytesPerForce()

Specified by:

getAverageBytesPerForce in interface TransactionLog