| commit | author | age | ||
| 15ed25 | 1 | package de.uhilger.avdirektor; |
| U | 2 | |
| 3 | import java.io.BufferedReader; | |
| 4 | import java.io.File; | |
| 5 | import java.io.FileInputStream; | |
| 6 | import java.io.FileNotFoundException; | |
| 7 | import java.io.IOException; | |
| 8 | import java.io.InputStream; | |
| 9 | import java.io.InputStreamReader; | |
| 10 | import java.util.logging.Logger; | |
| 11 | ||
| 12 | /** | |
| 13 | * | |
| 14 | * @author ulrich | |
| 15 | */ | |
| 16 | public class OMXLogLeser { | |
| 17 | ||
| 18 | private static final Logger logger = Logger.getLogger(OMXLogLeser.class.getName()); | |
| 19 | ||
| 20 | public String lesen(File logfile) throws FileNotFoundException, IOException { | |
| 21 | InputStream is = new FileInputStream(logfile); | |
| 22 | BufferedReader r = new BufferedReader(new InputStreamReader(is)); | |
| 23 | String firstLine = r.readLine(); | |
| 24 | String lastLine = ""; | |
| 25 | if(firstLine != null) { | |
| 26 | long size = logfile.length(); | |
| 27 | long pos = size - (long) 1000; | |
| 28 | logger.info("Size: " + size + ", Pos: " + pos); // 2.341.930 Bytes | |
| 29 | long skipped = r.skip(pos); | |
| 30 | logger.info("skipped: " + skipped); | |
| 31 | String line = r.readLine(); | |
| 32 | while(line != null) { | |
| 33 | lastLine = line; | |
| 34 | logger.info(lastLine); | |
| 35 | line = r.readLine(); | |
| 36 | } | |
| 37 | } | |
| 38 | r.close(); | |
| 39 | is.close(); | |
| 40 | StringBuilder sb = new StringBuilder(); | |
| 41 | sb.append("\r\n---"); | |
| 42 | sb.append("\r\nfirst line:\r\n"); | |
| 43 | sb.append(firstLine); | |
| 44 | sb.append("\r\n\r\nlastLine\r\n"); | |
| 45 | sb.append(lastLine); | |
| 46 | String lines = sb.toString(); | |
| 47 | logger.info(lines); | |
| 48 | return lines; | |
| 49 | } | |
| 50 | ||
| 51 | } | |
