package de.uhilger.avdirektor;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.Iterator;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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*
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* @author ulrich
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*/
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public class OMXLogLeser {
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private static final Logger logger = Logger.getLogger(OMXLogLeser.class.getName());
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public static final SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
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private static final long MILLIS = (long) 1000;
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private static final long MINSEC = (long) 60;
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/**
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*
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* <p>Die Spieldauer laut OMX-Log ergibt sich aus dem Zeitstempel des
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* letzten Eintrags abzueglich des Zeitstempels des
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* ersten Eintrags abzueglich der Pausen</p>
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*
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* <p>Eine Pause ist der Zeitraum vom Zeitstempel eines Eintrags mit
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* <code>Keyboard: character p (0x70)</code> bis zum Zeitstempel des
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* nächsten Eintrags mit <code>Keyboard: character p</code></p>
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*
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*
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* @param logfile
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* @return die Spieldauer als String im Format H:MM:SS
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* @throws FileNotFoundException
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* @throws IOException
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* @throws ParseException
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*/
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public String lesen(File logfile) throws FileNotFoundException, IOException, ParseException {
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boolean inPause = false;
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logger.info("Starting to parse log..");
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Date parseStart = new Date();
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long lineCount = 0;
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InputStream is = new FileInputStream(logfile);
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BufferedReader r = new BufferedReader(new InputStreamReader(is));
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String firstLine = r.readLine();
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++lineCount;
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String lastLine = "";
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String line = r.readLine();
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Blocks blocks = new Blocks();
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Block currentBlock = new Block();
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while(line != null) {
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++lineCount;
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if(currentBlock.getStart() == null) {
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currentBlock.setStart(line.substring(0, 8));
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}
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if(line.contains("Keyboard: character p")) {
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if(inPause) {
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currentBlock.setStart(line.substring(0, 8));
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} else {
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currentBlock.setEnd(line.substring(0, 8));
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blocks.add(currentBlock);
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currentBlock = new Block();
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}
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inPause = !inPause;
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}
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lastLine = line;
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line = r.readLine();
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}
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currentBlock.setEnd(lastLine.substring(0, 8));
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blocks.add(currentBlock);
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Date parseEnd = new Date();
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long timeMillis = parseEnd.getTime() - parseStart.getTime();
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long timeSeconds = timeMillis / MILLIS;
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long secMillis = timeSeconds * MILLIS;
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long restMillis = timeMillis - secMillis;
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logger.log(Level.INFO,
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"{0} lines parsed in {1} seconds and {2} milliseconds.",
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new Object[]{lineCount, timeSeconds, restMillis});
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return blocks.getTimeString();
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}
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class Block {
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private String start = null;
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private String end = null;
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public long getDuration() throws ParseException {
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Date startDate = sdf.parse(start);
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Date endDate = sdf.parse(end);
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return endDate.getTime() - startDate.getTime();
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}
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public String getStart() {
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return start;
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}
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public void setStart(String start) {
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//logger.log(Level.FINER, "Start: ''{0}''", start);
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this.start = start;
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}
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public String getEnd() {
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return end;
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}
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public void setEnd(String end) {
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//logger.log(Level.FINER, "End: ''{0}''", end);
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this.end = end;
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}
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}
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class Blocks {
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private final List<Block> blocks = new ArrayList();
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public void add(Block block) {
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blocks.add(block);
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}
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public long getDuration() throws ParseException {
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long duration = (long) 0;
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Iterator<Block> i = blocks.iterator();
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while(i.hasNext()) {
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Block b = i.next();
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duration += b.getDuration();
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}
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return duration;
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}
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public String getTimeString() throws ParseException {
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long diff = getDuration();
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long h = diff / MILLIS / MINSEC / MINSEC;
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long hmillis = h * MINSEC * MINSEC * MILLIS;
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long m = (diff - hmillis) / MILLIS / MINSEC;
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long mmillis = m * MINSEC * MILLIS;
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long s = (diff - hmillis - mmillis) / MILLIS;
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//logger.log(Level.FINER, "{0}:{1}:{2}", new Object[]{h, m, s});
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return h + ":" + m + ":" + s;
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}
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}
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}
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