cn.orionsec.kit.ext.tail.delay

Class AbstractDelayTracker

java.lang.Object

cn.orionsec.kit.ext.tail.Tracker

cn.orionsec.kit.ext.tail.delay.AbstractDelayTracker

All Implemented Interfaces:

SafeCloseable, Stoppable, Closeable, AutoCloseable, Runnable

Direct Known Subclasses:

DelayTracker, DelayTrackerListener

public abstract class AbstractDelayTracker
extends Tracker

延时文件追踪器

Since:

2020/5/14 16:13

Version:

1.0.0

Author:

Jiahang Li

Field Summary

Fields

Modifier and Type	Field and Description
protected String	charset 编码集
protected int	delayMillis 延迟时间
protected FileOffsetMode	fileOffsetMode 启动时文件偏移 处理模式
protected FileMinusMode	minusMode 运行时文件大小减少 处理模式
protected FileNotFoundMode	notFoundMode 启动时未找到文件 处理模式
protected int	notFountTimes 启动时未找到文件 处理次数
protected long	offset 开始监听的文件偏移量 = -1 从文件当前大小开始 = 0 从0开始 > 0 BYTE 从length - offset 开始 > 0 LINE 倒数第几行开始
protected RandomAccessFile	reader RandomAccessFile
protected File	tailFile 追踪的文件

Fields inherited from class cn.orionsec.kit.ext.tail.Tracker

run

Constructor Summary

Constructors

Constructor and Description
AbstractDelayTracker(File tailFile)
AbstractDelayTracker(String tailFile)

Method Summary

Modifier and Type	Method and Description
AbstractDelayTracker	charset(String charset)
void	close() 安全关闭
AbstractDelayTracker	delayMillis(int delayMillis)
protected boolean	init() 初始化
AbstractDelayTracker	minusMode(FileMinusMode minusMode)
AbstractDelayTracker	notFoundMode(FileNotFoundMode notFoundMode)
AbstractDelayTracker	notFoundMode(FileNotFoundMode notFoundMode, int notFountTimes)
AbstractDelayTracker	offset(FileOffsetMode fileOffsetMode, long offset)
AbstractDelayTracker	offset(long offset)
protected abstract void	read() 读取
protected void	resetSeek() 重新设置初始化位置
boolean	setFileLastModifyTime() 设置文件最后更新时间
protected void	setSeek() 设置初始化位置
void	tail() 开启tail
String	toString()

Methods inherited from class cn.orionsec.kit.ext.tail.Tracker

isRun, run, stop

Methods inherited from class java.lang.Object

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

Field Detail

tailFile

protected File tailFile

追踪的文件

reader

protected RandomAccessFile reader

RandomAccessFile

charset

protected String charset

编码集

delayMillis

protected int delayMillis

延迟时间

fileOffsetMode

protected FileOffsetMode fileOffsetMode

启动时文件偏移 处理模式

offset

protected long offset

开始监听的文件偏移量

= -1 从文件当前大小开始 = 0 从0开始 > 0 BYTE 从length - offset 开始 > 0 LINE 倒数第几行开始

notFoundMode

protected FileNotFoundMode notFoundMode

启动时未找到文件 处理模式

notFountTimes

protected int notFountTimes

启动时未找到文件 处理次数

minusMode

protected FileMinusMode minusMode

运行时文件大小减少 处理模式

Constructor Detail

AbstractDelayTracker

public AbstractDelayTracker(String tailFile)

AbstractDelayTracker

public AbstractDelayTracker(File tailFile)

Method Detail

tail

public void tail()

Description copied from class: Tracker

开启tail

Specified by:

tail in class Tracker

init

protected boolean init()
                throws IOException

初始化

Returns:

是否初始化成功

Throws:

IOException - IOException

setSeek

protected void setSeek()
                throws IOException

设置初始化位置

Throws:

IOException

resetSeek

protected void resetSeek()
                  throws IOException

重新设置初始化位置

Throws:

IOException

read

protected abstract void read()
                      throws IOException

读取

Throws:

IOException - IOException

setFileLastModifyTime

public boolean setFileLastModifyTime()

设置文件最后更新时间

charset

public AbstractDelayTracker charset(String charset)

offset

public AbstractDelayTracker offset(long offset)

offset

public AbstractDelayTracker offset(FileOffsetMode fileOffsetMode,
                                   long offset)

delayMillis

public AbstractDelayTracker delayMillis(int delayMillis)

notFoundMode

public AbstractDelayTracker notFoundMode(FileNotFoundMode notFoundMode)

notFoundMode

public AbstractDelayTracker notFoundMode(FileNotFoundMode notFoundMode,
                                         int notFountTimes)

minusMode

public AbstractDelayTracker minusMode(FileMinusMode minusMode)

close

public void close()

Description copied from interface: SafeCloseable

安全关闭

toString

public String toString()

Overrides:

toString in class Object