com.videobug.agent.logging.perthread

Class PerThreadBinaryFileAggregatedLogger

java.lang.Object

com.videobug.agent.logging.perthread.PerThreadBinaryFileAggregatedLogger

All Implemented Interfaces:

ThreadEventCountProvider, AggregatedFileLogger

public class PerThreadBinaryFileAggregatedLogger
extends Object
implements AggregatedFileLogger, ThreadEventCountProvider

This class is a stream specialized to write a sequence of events into files. A triple of data ID, thread ID, and a value observed in the event is recorded.

While a regular stream like FileOutputStream generates a single file, this stream creates a number of files whose size is limited by the number of events (MAX_EVENTS_PER_FILE field).

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_EVENTS_PER_FILE The number of events stored in a single file.
static int	WRITE_BYTE_BUFFER_SIZE

Constructor Summary

Constructors

Constructor and Description
PerThreadBinaryFileAggregatedLogger(FileNameGenerator fileNameGenerator, IErrorLogger logger, RawFileCollector fileCollector) Create an instance of stream.

Method Summary

Modifier and Type	Method and Description
void	close() Close the stream.
long	getNextEventId()
AtomicInteger	getThreadEventCount(int currentThreadId)
void	shutdown()
void	writeEvent(int probeId, long valueId)
void	writeEvent(int probeId, long valueId, byte[] toByteArray) Block type: 7 Event with object value serialized
void	writeEvent(int probeId, long valueId, ByteArrayOutputStream outputStream)
void	writeNewException(byte[] exceptionBytes)
void	writeNewObjectType(long id, long typeId)
void	writeNewString(long id, String stringObject)
void	writeNewTypeRecord(int typeId, String typeName, byte[] toString)
void	writeWeaveInfo(byte[] byteArray)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_EVENTS_PER_FILE

public static final int MAX_EVENTS_PER_FILE

The number of events stored in a single file.

See Also:

Constant Field Values

WRITE_BYTE_BUFFER_SIZE

public static final int WRITE_BYTE_BUFFER_SIZE

See Also:

Constant Field Values

Constructor Detail

PerThreadBinaryFileAggregatedLogger

public PerThreadBinaryFileAggregatedLogger(FileNameGenerator fileNameGenerator,
                                           IErrorLogger logger,
                                           RawFileCollector fileCollector)

Create an instance of stream.

Parameters:

fileNameGenerator - file generator for output data

logger - is to report errors that occur in this class.

fileCollector - collects the dataEvent log files, creates indexes,

Method Detail

close

public void close()

Close the stream.

writeNewObjectType

public void writeNewObjectType(long id,
                               long typeId)

Specified by:

writeNewObjectType in interface AggregatedFileLogger

writeNewString

public void writeNewString(long id,
                           String stringObject)

Specified by:

writeNewString in interface AggregatedFileLogger

writeNewException

public void writeNewException(byte[] exceptionBytes)

Specified by:

writeNewException in interface AggregatedFileLogger

writeEvent

public void writeEvent(int probeId,
                       long valueId)

Specified by:

writeEvent in interface AggregatedFileLogger

getNextEventId

public long getNextEventId()

writeNewTypeRecord

public void writeNewTypeRecord(int typeId,
                               String typeName,
                               byte[] toString)

Specified by:

writeNewTypeRecord in interface AggregatedFileLogger

writeWeaveInfo

public void writeWeaveInfo(byte[] byteArray)

Specified by:

writeWeaveInfo in interface AggregatedFileLogger

shutdown

public void shutdown()
              throws IOException,
                     InterruptedException

Specified by:

shutdown in interface AggregatedFileLogger

Throws:

IOException

InterruptedException

writeEvent

public void writeEvent(int probeId,
                       long valueId,
                       byte[] toByteArray)

Block type: 7 Event with object value serialized

Specified by:

writeEvent in interface AggregatedFileLogger

Parameters:

probeId - probe id

valueId - value

toByteArray - serialized object representation

writeEvent

public void writeEvent(int probeId,
                       long valueId,
                       ByteArrayOutputStream outputStream)

Specified by:

writeEvent in interface AggregatedFileLogger

getThreadEventCount

public AtomicInteger getThreadEventCount(int currentThreadId)

Specified by:

getThreadEventCount in interface ThreadEventCountProvider