Modifier and Type	Class and Description
public static interface	HistogramLogScanner.EncodableHistogramSupplier
public static interface	HistogramLogScanner.EventHandler Handles log events, return true to stop processing.
private static class	HistogramLogScanner.LazyHistogramReader

Modifier and Type	Field and Description
private final HistogramLogScanner.LazyHistogramReader	lazyReader
protected final Scanner	scanner

Constructor Summary

Access	Constructor and Description
public	HistogramLogScanner(final String The name of the file to read from inputFileName) Constructs a new HistogramLogReader that produces intervals read from the specified file name.
public	HistogramLogScanner(final InputStream The InputStream to read from inputStream) Constructs a new HistogramLogReader that produces intervals read from the specified InputStream.
public	HistogramLogScanner(final File The File to read from inputFile) Constructs a new HistogramLogReader that produces intervals read from the specified file.
private	HistogramLogScanner(Scanner scanner)

Method Summary

Modifier and Type	Method and Description
public void	close() Implements java.io.Closeable.close. Close underlying scanner.
public boolean	Returns: true if additional intervals may exist in the log hasNextLine() Indicates whether or not additional intervals may exist in the log
private void	initScanner()
public void	process(HistogramLogScanner.EventHandler handler)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

lazyReader	back to summary
private final HistogramLogScanner.LazyHistogramReader lazyReader

scanner	back to summary
protected final Scanner scanner

Constructor Detail

HistogramLogScanner	back to summary
public HistogramLogScanner(final String inputFileName) throws FileNotFoundException Constructs a new HistogramLogReader that produces intervals read from the specified file name. Parameters inputFileName:String The name of the file to read from Exceptions FileNotFoundException: when unable to find inputFileName

HistogramLogScanner

back to summary

public HistogramLogScanner(final String inputFileName) throws FileNotFoundException

Constructs a new HistogramLogReader that produces intervals read from the specified file name.

Parameters

inputFileName:String: The name of the file to read from

Exceptions

FileNotFoundException:: when unable to find inputFileName

HistogramLogScanner back to summary

HistogramLogScanner	back to summary
public HistogramLogScanner(final InputStream inputStream) Constructs a new HistogramLogReader that produces intervals read from the specified InputStream. Note that log readers constructed through this constructor do not assume ownership of stream and will not close it on `close()`. Parameters inputStream:InputStream The InputStream to read from

public HistogramLogScanner(final InputStream inputStream)

Constructs a new HistogramLogReader that produces intervals read from the specified InputStream. Note that log readers constructed through this constructor do not assume ownership of stream and will not close it on close().

Parameters

inputStream:InputStream: The InputStream to read from

HistogramLogScanner	back to summary
public HistogramLogScanner(final File inputFile) throws FileNotFoundException Constructs a new HistogramLogReader that produces intervals read from the specified file. Parameters inputFile:File The File to read from Exceptions FileNotFoundException: when unable to find inputFile

HistogramLogScanner

back to summary

public HistogramLogScanner(final File inputFile) throws FileNotFoundException

Constructs a new HistogramLogReader that produces intervals read from the specified file.

Parameters

inputFile:File: The File to read from

Exceptions

FileNotFoundException:: when unable to find inputFile

HistogramLogScanner	back to summary
private HistogramLogScanner(Scanner scanner)

Method Detail

close	back to summary
public void close() Implements java.io.Closeable.close. Close underlying scanner. Annotations @Override

back to summary

public void close()

Implements java.io.Closeable.close.

Close underlying scanner.

Annotations

@Override

hasNextLine	back to summary
public boolean hasNextLine() Indicates whether or not additional intervals may exist in the log Returns:boolean true if additional intervals may exist in the log

hasNextLine

back to summary

public boolean hasNextLine()

Indicates whether or not additional intervals may exist in the log

Returns:boolean: true if additional intervals may exist in the log

initScanner	back to summary
private void initScanner()

process	back to summary
public void process(HistogramLogScanner.EventHandler handler)

org.HdrHistogram back to summary

public Interface HistogramLogScanner.EncodableHistogramSupplier

Known Direct Implementers: org.HdrHistogram.HistogramLogScanner.LazyHistogramReader

Method Summary

Modifier and Type	Method and Description
public EncodableHistogram	read()

Method Detail

read	back to summary
public EncodableHistogram read() throws DataFormatException

org.HdrHistogram back to summary

public Interface HistogramLogScanner.EventHandler

Handles log events, return true to stop processing.

Method Summary

Modifier and Type	Method and Description
public boolean	onBaseTime(double secondsSinceEpoch)
public boolean	onComment(String comment)
public boolean	onException(Throwable t)
public boolean	Returns: true to stop processing, false to continue. onHistogram(String histogram tag or null if none exist tag, double logged timestamp timestamp, double logged interval length length, HistogramLogScanner.EncodableHistogramSupplier to be called if the histogram needs to be deserialized, given the tag/timestamp etc. lazyReader) A lazy reader is provided to allow fast skipping of bulk of work where tag or timestamp are to be used as a basis for filtering the `EncodableHistogram` anyway.
public boolean	onStartTime(double secondsSinceEpoch)

Method Detail

onBaseTime	back to summary
public boolean onBaseTime(double secondsSinceEpoch)

onComment	back to summary
public boolean onComment(String comment)

onException	back to summary
public boolean onException(Throwable t)

onHistogram back to summary

onHistogram	back to summary
public boolean onHistogram(String tag, double timestamp, double length, HistogramLogScanner.EncodableHistogramSupplier lazyReader) A lazy reader is provided to allow fast skipping of bulk of work where tag or timestamp are to be used as a basis for filtering the `EncodableHistogram` anyway. The reader is to be called only once. Parameters tag:String histogram tag or null if none exist timestamp:double logged timestamp length:double logged interval length lazyReader:HistogramLogScanner.EncodableHistogramSupplier to be called if the histogram needs to be deserialized, given the tag/timestamp etc. Returns:boolean true to stop processing, false to continue.

public boolean onHistogram(String tag, double timestamp, double length, HistogramLogScanner.EncodableHistogramSupplier lazyReader)

A lazy reader is provided to allow fast skipping of bulk of work where tag or timestamp are to be used as a basis for filtering the EncodableHistogram anyway. The reader is to be called only once.

Parameters

tag:String: histogram tag or null if none exist
timestamp:double: logged timestamp
length:double: logged interval length
lazyReader:HistogramLogScanner.EncodableHistogramSupplier: to be called if the histogram needs to be deserialized, given the tag/timestamp etc.

Returns:boolean

true to stop processing, false to continue.

onStartTime	back to summary
public boolean onStartTime(double secondsSinceEpoch)

org.HdrHistogram back to summary

private Class HistogramLogScanner.LazyHistogramReader

Class Inheritance

extends Object
implements EncodableHistogramSupplier

java.lang.Object
org.HdrHistogram.HistogramLogScanner.LazyHistogramReader

All Implemented Interfaces

org.HdrHistogram.HistogramLogScanner.EncodableHistogramSupplier

Field Summary

Modifier and Type	Field and Description
private boolean	gotIt
private final Scanner	scanner

Constructor Summary

Access	Constructor and Description
private	LazyHistogramReader(Scanner scanner)

Method Summary

Modifier and Type	Method and Description
private void	allowGet()
public EncodableHistogram	read() Implements org.HdrHistogram.HistogramLogScanner.EncodableHistogramSupplier.read.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

gotIt	back to summary
private boolean gotIt

scanner	back to summary
private final Scanner scanner

Constructor Detail

LazyHistogramReader	back to summary
private LazyHistogramReader(Scanner scanner)

Method Detail

allowGet	back to summary
private void allowGet()

read	back to summary
public EncodableHistogram read() throws DataFormatException Implements org.HdrHistogram.HistogramLogScanner.EncodableHistogramSupplier.read. Annotations @Override

read

back to summary

public EncodableHistogram read() throws DataFormatException

Implements org.HdrHistogram.HistogramLogScanner.EncodableHistogramSupplier.read.

Annotations

@Override

public Class HistogramLogScanner

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Interface HistogramLogScanner.EncodableHistogramSupplier

Method Summary

Method Detail

public Interface HistogramLogScanner.EventHandler

Method Summary

Method Detail

private Class HistogramLogScanner.LazyHistogramReader

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail