com.sleepycat.je.log

Class StatsFileReader

java.lang.Object

com.sleepycat.je.log.FileReader

com.sleepycat.je.log.DumpFileReader

com.sleepycat.je.log.StatsFileReader

public class StatsFileReader
extends DumpFileReader

The StatsFileReader generates stats about the log entries read, such as the count of each type of entry, the number of bytes, minimum and maximum sized log entry.

Nested Class Summary

Nested classes/interfaces inherited from class com.sleepycat.je.log.FileReader

FileReader.EOFException, FileReader.ReadWindow

Field Summary

Fields inherited from class com.sleepycat.je.log.DumpFileReader

verbose

Fields inherited from class com.sleepycat.je.log.FileReader

cksumValidator, currentEntryHeader, currentEntryOffset, currentEntryPrevOffset, envImpl, eof, fileManager, forward, logger, nextEntryOffset, startLsn, window

Constructor Summary

Constructors

Constructor and Description
StatsFileReader(EnvironmentImpl envImpl, int readBufferSize, long startLsn, long finishLsn, long endOfFileLsn, String entryTypes, String dbIds, String txnIds, boolean verbose, boolean repEntriesOnly, boolean forwards) Create this reader to start at a given LSN.

Method Summary

Modifier and Type	Method and Description
protected boolean	processEntry(ByteBuffer entryBuffer) This reader collects stats about the log entry.
void	summarize(boolean csvFormat)

Methods inherited from class com.sleepycat.je.log.DumpFileReader

isTargetEntry, matchEntry, needMatchEntry

Methods inherited from class com.sleepycat.je.log.FileReader

entryIsReplicated, getAndResetNReads, getLastEntrySize, getLastLsn, getLastVlsn, getLogVersion, getNRepeatIteratorReads, getNumRead, handleGapInBackwardsScan, initStartingPosition, makeWindow, readNextEntry, readNextEntryAllowExceptions, setAlwaysValidateChecksum, setBackwardPosition, setForwardPosition, skipData, skipEntry

Methods inherited from class java.lang.Object

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

Constructor Detail

StatsFileReader

public StatsFileReader(EnvironmentImpl envImpl,
                       int readBufferSize,
                       long startLsn,
                       long finishLsn,
                       long endOfFileLsn,
                       String entryTypes,
                       String dbIds,
                       String txnIds,
                       boolean verbose,
                       boolean repEntriesOnly,
                       boolean forwards)
                throws DatabaseException

Create this reader to start at a given LSN.

Throws:

DatabaseException

Method Detail

processEntry

protected boolean processEntry(ByteBuffer entryBuffer)

This reader collects stats about the log entry.

Specified by:

processEntry in class FileReader

Parameters:

entryBuffer - A ByteBuffer that the logrec data and is positioned at the start of the logrec body (i.e., just after the logrec header).

Returns:

true if this entry should be returned to the caller of readNextEntry().

summarize

public void summarize(boolean csvFormat)

Overrides:

summarize in class DumpFileReader