pro.fessional.mirana.stat

Class LogStat

java.lang.Object

pro.fessional.mirana.stat.LogStat

public class LogStat
extends Object

Reads small log files that do not exceed the number of Integer.Max lines. Do not exceed 10k for a single line. access.log for example, 71301287 = 17G.

Since:

2021-07-12

Author:

trydofor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LogStat.Stat
static class	LogStat.Word

Field Summary

Fields

Modifier and Type	Field and Description
static int	Preview
static String	Suffix

Constructor Summary

Constructors

Constructor and Description
LogStat()

Method Summary

Modifier and Type	Method and Description
static LogStat.Stat	buildStat(String log, long from, Collection<? extends LogStat.Word> keys) Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.
static LogStat.Stat	buildStat(String log, long from, Collection<? extends LogStat.Word> keys, String suffix)
static LogStat.Stat	buildStat(String log, long from, Collection<? extends LogStat.Word> keys, String suffix, int preview)
static List<String>	clean(String log, int days) Clear N days old scanned files
static List<String>	clean(String log, int days, String suffix)
static void	main(String[] args)
static @NotNull LogStat.Stat	stat(String log, long from, byte[]... keys)
static @NotNull LogStat.Stat	stat(String log, long from, Collection<? extends LogStat.Word> keys)
static @NotNull LogStat.Stat	stat(String log, long from, int preview, byte[]... keys) Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.
static @NotNull LogStat.Stat	stat(String log, long from, int preview, Collection<? extends LogStat.Word> keys) Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.
static @NotNull LogStat.Stat	stat(String log, long from, int preview, LogStat.Word... keys) Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.
static @NotNull LogStat.Stat	stat(String log, long from, int preview, String... keys) Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.
static @NotNull LogStat.Stat	stat(String log, long from, LogStat.Word... keys)
static @NotNull LogStat.Stat	stat(String log, long from, String... keys)

Methods inherited from class java.lang.Object

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

Field Detail

Suffix

public static final String Suffix

See Also:

Constant Field Values

Preview

public static final int Preview

See Also:

Constant Field Values

Constructor Detail

LogStat

public LogStat()

Method Detail

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  String... keys)

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  int preview,
                                                  String... keys)

Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.

Parameters:

log - the log file

from - Start byte, negative means start at the end

keys - keyword in utf8

preview - preview lines after matched key

Returns:

stat

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  byte[]... keys)

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  int preview,
                                                  byte[]... keys)

Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.

Parameters:

log - the log file

from - Start byte, negative means start at the end

keys - keyword in bytes

preview - preview lines after matched key

Returns:

stat

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  LogStat.Word... keys)

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  int preview,
                                                  LogStat.Word... keys)

Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.

Parameters:

log - the log file

from - Start byte, negative means start at the end

keys - keyword

preview - preview lines after matched key

Returns:

stat

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  Collection<? extends LogStat.Word> keys)

stat

@NotNull
public static @NotNull LogStat.Stat stat(String log,
                                                  long from,
                                                  int preview,
                                                  Collection<? extends LogStat.Word> keys)

Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.

Parameters:

log - the log file

from - Start byte, negative means start at the end

keys - keyword

preview - preview lines after matched key

Returns:

stat

clean

public static List<String> clean(String log,
                                 int days)

Clear N days old scanned files

Parameters:

log - the log file

days - Days, less than zero, treated as zero

Returns:

Paths of cleaned files

clean

public static List<String> clean(String log,
                                 int days,
                                 String suffix)

buildStat

public static LogStat.Stat buildStat(String log,
                                     long from,
                                     Collection<? extends LogStat.Word> keys)
                              throws IOException

Directly obtain statistics, which may be overwritten when logs are output at the same time within the same millisecond of the same log.

Parameters:

log - the log file

from - Start byte, negative means start at the end

keys - keyword

Returns:

stat

Throws:

IOException

buildStat

public static LogStat.Stat buildStat(String log,
                                     long from,
                                     Collection<? extends LogStat.Word> keys,
                                     String suffix)
                              throws IOException

Throws:

IOException

buildStat

public static LogStat.Stat buildStat(String log,
                                     long from,
                                     Collection<? extends LogStat.Word> keys,
                                     String suffix,
                                     int preview)
                              throws IOException

Throws:

IOException

main

public static void main(String[] args)