com.orion.ext.tail.delay.DelayTracker Maven / Gradle / Ivy
/*
* Copyright (c) 2019 - present Jiahang Li (kit.orionsec.cn [email protected]).
*
* The MIT License (MIT)
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.orion.ext.tail.delay;
import com.orion.ext.tail.handler.LineHandler;
import com.orion.lang.constant.Const;
import com.orion.lang.utils.Spells;
import com.orion.lang.utils.Strings;
import com.orion.lang.utils.Valid;
import com.orion.lang.utils.io.FileReaders;
import java.io.File;
import java.io.IOException;
/**
* 延时文件追踪器 行
*
* @author Jiahang Li
* @version 1.0.0
* @since 2020/5/14 16:13
*/
public class DelayTracker extends AbstractDelayTracker {
/**
* 读取的行
*/
private int accessCount;
/**
* 行处理器
*/
private final LineHandler handler;
public DelayTracker(String tailFile, LineHandler handler) {
this(new File(tailFile), handler);
}
public DelayTracker(File tailFile, LineHandler handler) {
super(tailFile);
this.handler = Valid.notNull(handler, "line handler is null");
}
@Override
protected void read() throws IOException {
String read = FileReaders.readAllLines(reader, charset);
if (read == null || read.isEmpty()) {
return;
}
String[] lines = Strings.replaceCRLF(read).split(Const.LF);
for (String line : lines) {
// if (accessCount == 0 && fileOffsetMode.equals(FileOffsetMode.BYTE) && offset > 0) {
// line = cleanMissCode(line);
// }
handler.readLine(line, accessCount++, this);
}
}
/**
* 去除乱码
*
* @param str str
* @return str
*/
public static String cleanMissCode(String str) {
int testCount = Math.min(str.length(), 2);
for (int i = testCount; i > 0; i--) {
if (Spells.isMessyCode(String.valueOf(str.charAt(i - 1)))) {
str = str.substring(i);
break;
}
}
return str;
}
}