Examples with LineReader com.google.common.io.LineReader used on opensource projects

Example 6 with LineReader

use of com.google.common.io.LineReader in project cdap by caskdata.

the class CommandPortService method serve.

/**
 * Starts accepting incoming request. This method would block until this service is stopped.
 *
 * @throws IOException If any I/O error occurs on the socket connection.
 */
private void serve() throws IOException {
    while (isRunning()) {
        try {
            Socket socket = serverSocket.accept();
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(), "UTF-8"));
            try {
                // Read the client command and dispatch
                String command = new LineReader(new InputStreamReader(socket.getInputStream(), "UTF-8")).readLine();
                CommandHandler handler = handlers.get(command);
                if (handler != null) {
                    try {
                        handler.handle(writer);
                    } catch (Throwable t) {
                        LOG.error(String.format("Exception thrown from CommandHandler for command %s", command), t);
                    }
                }
            } finally {
                writer.flush();
                socket.close();
            }
        } catch (Throwable th) {
            // NOTE: catch any exception to keep the main service running
            // Trigger by serverSocket.close() through the call from stop().
            LOG.debug(th.getMessage(), th);
        }
    }
}

Example 7 with LineReader

use of com.google.common.io.LineReader in project opencast by opencast.

the class VideoSegmenterServiceImpl method runSegmentationFFmpeg.

/**
 * Does the actual segmentation with an FFmpeg call, adds the segments to the given videoContent of a catalog and
 * returns a list with the resulting segments
 *
 * @param track the element to analyze
 * @param videoContent the videoContent of the Mpeg7Catalog that the segments should be added to
 * @param mediaFile the file of the track to analyze
 * @param changesThreshold the changesThreshold that is used as option for the FFmpeg call
 * @return a list of the resulting segments
 * @throws IOException
 */
protected LinkedList<Segment> runSegmentationFFmpeg(Track track, Video videoContent, File mediaFile, float changesThreshold) throws IOException {
    String[] command = new String[] { binary, "-nostats", "-i", mediaFile.getAbsolutePath().replaceAll(" ", "\\ "), "-filter:v", "select=gt(scene\\," + changesThreshold + "),showinfo", "-f", "null", "-" };
    String commandline = StringUtils.join(command, " ");
    logger.info("Running {}", commandline);
    ProcessBuilder pbuilder = new ProcessBuilder(command);
    List<String> segmentsStrings = new LinkedList<String>();
    Process process = pbuilder.start();
    BufferedReader reader = new BufferedReader(new InputStreamReader(process.getErrorStream()));
    try {
        LineReader lr = new LineReader(reader);
        String line = lr.readLine();
        while (null != line) {
            if (line.startsWith("[Parsed_showinfo")) {
                segmentsStrings.add(line);
            }
            line = lr.readLine();
        }
    } catch (IOException e) {
        logger.error("Error executing ffmpeg: {}", e.getMessage());
    } finally {
        reader.close();
    }
    // [Parsed_showinfo_1 @ 0x157fb40] n:0 pts:12 pts_time:12 pos:227495
    // fmt:rgb24 sar:0/1 s:320x240 i:P iskey:1 type:I checksum:8DF39EA9
    // plane_checksum:[8DF39EA9]
    int segmentcount = 1;
    LinkedList<Segment> segments = new LinkedList<Segment>();
    if (segmentsStrings.size() == 0) {
        Segment s = videoContent.getTemporalDecomposition().createSegment("segment-" + segmentcount);
        s.setMediaTime(new MediaRelTimeImpl(0, track.getDuration()));
        segments.add(s);
    } else {
        long starttime = 0;
        long endtime = 0;
        Pattern pattern = Pattern.compile("pts_time\\:\\d+(\\.\\d+)?");
        for (String seginfo : segmentsStrings) {
            Matcher matcher = pattern.matcher(seginfo);
            String time = "0";
            while (matcher.find()) {
                time = matcher.group().substring(9);
            }
            endtime = (long) (Float.parseFloat(time) * 1000);
            long segmentLength = endtime - starttime;
            if (1000 * stabilityThresholdPrefilter < segmentLength) {
                Segment segment = videoContent.getTemporalDecomposition().createSegment("segment-" + segmentcount);
                segment.setMediaTime(new MediaRelTimeImpl(starttime, endtime - starttime));
                segments.add(segment);
                segmentcount++;
                starttime = endtime;
            }
        }
        // Add last segment
        Segment s = videoContent.getTemporalDecomposition().createSegment("segment-" + segmentcount);
        s.setMediaTime(new MediaRelTimeImpl(endtime, track.getDuration() - endtime));
        segments.add(s);
    }
    logger.info("Segmentation of {} yields {} segments", mediaFile.toURI().toURL(), segments.size());
    return segments;
}

Example 8 with LineReader

use of com.google.common.io.LineReader in project Truck-Factor by aserg-ufmg.

the class Alias method readFile.

private static Alias[] readFile(String fileName) throws IOException {
    List<Alias> fileAliases = new ArrayList<Alias>();
    BufferedReader br = new BufferedReader(new FileReader(fileName));
    LineReader lineReader = new LineReader(br);
    String sCurrentLine;
    String[] values;
    int countcfs = 0;
    while ((sCurrentLine = lineReader.readLine()) != null) {
        values = sCurrentLine.split(";");
        if (values.length < 3)
            System.err.println("Erro na linha " + countcfs);
        String rep = values[0];
        String dev1 = values[1];
        String dev2 = values[2];
        fileAliases.add(new Alias(rep, dev1, dev2));
        countcfs++;
    }
    return fileAliases.toArray(new Alias[0]);
}

Example 9 with LineReader

use of com.google.common.io.LineReader in project Truck-Factor by aserg-ufmg.

the class FileInfoReader method getFileInfo.

public static Map<String, List<LineInfo>> getFileInfo(String fileName) throws IOException {
    Map<String, List<LineInfo>> fileInfoMap = new HashMap<String, List<LineInfo>>();
    BufferedReader br = new BufferedReader(new FileReader(fileName));
    LineReader lineReader = new LineReader(br);
    String sCurrentLine;
    String[] values;
    int countcfs = 0;
    while ((sCurrentLine = lineReader.readLine()) != null) {
        if (sCurrentLine.startsWith("#"))
            continue;
        values = sCurrentLine.split(";");
        if (values.length < 3)
            System.err.println("Erro na linha " + countcfs);
        String rep = values[0];
        if (!fileInfoMap.containsKey(rep)) {
            fileInfoMap.put(rep, new ArrayList<LineInfo>());
        }
        fileInfoMap.get(rep).add(new LineInfo(rep, Arrays.asList(values).subList(1, values.length)));
    }
    // lineReader.close();
    return fileInfoMap;
}

Example 10 with LineReader

use of com.google.common.io.LineReader in project maven-plugins by apache.

the class ServicesResourceTransformer method processResource.

public void processResource(String resource, InputStream is, final List<Relocator> relocators) throws IOException {
    ServiceStream out = serviceEntries.get(resource);
    if (out == null) {
        out = new ServiceStream();
        serviceEntries.put(resource, out);
    }
    final ServiceStream fout = out;
    final String content = IOUtils.toString(is);
    StringReader reader = new StringReader(content);
    LineReader lineReader = new LineReader(reader);
    String line;
    while ((line = lineReader.readLine()) != null) {
        String relContent = line;
        for (Relocator relocator : relocators) {
            if (relocator.canRelocateClass(relContent)) {
                relContent = relocator.applyToSourceContent(relContent);
            }
        }
        fout.append(relContent + "\n");
    }
    if (this.relocators == null) {
        this.relocators = relocators;
    }
}