將日誌文件解析爲CSV格式

Question

我試圖開發一小段代碼，這將幫助我劃定一個日誌文件，該日誌文件已將大量跟蹤路由存儲到一週內發送的不同IP。

我希望能夠在每個跟蹤路線的開始和結束處使用'--- START ---'和'--- END ---'標記將它們分開。例子如下：

--- START --- 
Mon Mar 12 22:45:05 GMT 2012 
traceroute to xxxxxxx (xxxxxxxx), 30 hops max, 60 byte packets 
1 xxxxxxx (xxxxx) 1.085 ms 1.662 ms 2.244 ms 
2 xxxxxxxx (xxxxxxx) 0.792 ms 0.782 ms 0.772 ms 
3 xxxxxxxxx (xxxxxxxxx) 8.545 ms 9.170 ms 9.644 ms 
4 etc 
5 etc 
--- END --- 
--- START --- 
Mon Mar 12 22:45:05 GMT 2012 
traceroute to xxxxxxxxx (xxxxxxxx), 30 hops max, 60 byte packets 
1 139.222.0.1 (xxxxxxxxx) 0.925 ms 1.318 ms 1.954 ms 
2 10.0.0.1 (xxxxxxxx) 0.345 ms 0.438 ms 0.496 ms 
3 172.16.0.34 (xxxxxxxxx) 0.830 ms 2.553 ms 0.809 ms 
4 etc 
5 etc 
6 etc 
--- END --- 

誰能給我一隻手伸進如何做到這一點做，在MATLAB或Java ......我也想算每一跳的路由跟蹤，使量。這是

乾杯--- END ---標籤拋出之前給出的數字...

任何幫助將不勝感激。

Answer 1

快速「N髒例如：

import java.io.*; 
import java.text.*; 
import java.util.*; 
import java.util.regex.*; 

public class Main 
{ 
    private static class Record 
    { 
    public Date date; 

    public String to; 
    public int hops; 
    public int packetSize; 

    public String toString() 
    { 
     return date + " ::: " + to + ", " + hops + " hops, " 
     + packetSize + " bytes"; 
    } 
    } 

    public static void main(String[] args) throws Exception 
    { 
    Scanner s = new Scanner(new FileReader(new File("input.txt"))); 

    Record currentRecord = null; 
    ArrayList<Record> list = new ArrayList<Record>(); 

    while (s.hasNextLine()) { 
     String line = s.nextLine(); 

     if ("--- START ---".equals(line)) { 
     currentRecord = new Record(); 

     } else if ("--- END ---".equals(line)) { 
     list.add(currentRecord); 
     currentRecord = null; 

     } else if (currentRecord.date == null) { 
     currentRecord.date = new SimpleDateFormat(
      "EEE MMM dd HH:mm:ss zzz yyyy").parse(line); 

     } else if (line.startsWith("traceroute to ")) { 
     Pattern p = Pattern.compile(
      "traceroute to ([^ ]+) [^,]+, ([^ ]+) hops max, ([^ ]+) byte packets"); 
     Matcher m = p.matcher(line); 

     if (m.matches()) { 
      currentRecord.to = m.group(1); 
      currentRecord.hops = Integer.parseInt(m.group(2)); 
      currentRecord.packetSize = Integer.parseInt(m.group(3)); 
     } 
     } 
    } 

    for (int i = 0; i < list.size(); i++) 
     System.out.println(list.get(i).toString()); 
    } 

} 

輸出：

Tue Mar 13 04:15:05 GMT+05:30 2012 ::: 203.98.69.105, 30 hops, 60 bytes 
Tue Mar 13 04:15:05 GMT+05:30 2012 ::: 62.193.36.27, 30 hops, 60 bytes 

我指點你在一堆不同的方向（Scanner，Pattern，SimpleDateFormat等）。對於單個「網關」項目，您還可以使用String.split()，使用" "（兩個空格）作爲分隔符。