Example usage for java.io LineNumberReader skip

List of usage examples for java.io LineNumberReader skip

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Introduction

In this page you can find the example usage for java.io LineNumberReader skip.

Prototype

public long skip(long n) throws IOException

Source Link

Document

Skip characters.

Usage

From source file:com.saptarshidebnath.lib.processrunner.process.RunnerFactoryTest.java

private int getFileLineNumber(final File fileToCountLineNumber) throws IOException {
    LineNumberReader lnr = null;
    int lineNumber;
    try {/*from  w ww.j  a va 2 s.  co m*/
        lnr = new LineNumberReader(new InputStreamReader(new FileInputStream(fileToCountLineNumber)));
        long skipValue = Long.MAX_VALUE;
        while (skipValue != 0) {
            skipValue = lnr.skip(Long.MAX_VALUE);
        }
        lineNumber = lnr.getLineNumber() + 1; // Add 1 because line index starts at 0
    } finally {
        if (lnr != null) {
            lnr.close();
        }
    }
    return lineNumber;
}

From source file:core.Inject.java

private String[] loadPayloadsFromfile(String pathTo_payloads) {
    String[] _payloads = null;// ww w.  ja  va 2s  .  co  m

    try {
        FileInputStream fstream = new FileInputStream(pathTo_payloads);
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String strLine;
        int i = 0;

        LineNumberReader lnr = new LineNumberReader(new FileReader(pathTo_payloads));
        lnr.skip(Long.MAX_VALUE);

        _payloads = new String[lnr.getLineNumber()];

        while ((strLine = br.readLine()) != null) {
            _payloads[i] = strLine;
            i++;
        }

        in.close();
    } catch (Exception e) {
        Debug.printError("ERROR: unable to load the attack payloads");
        HaltHandler.quit_nok();
    }

    return _payloads;
}

From source file:com.jkoolcloud.tnt4j.streams.utils.Utils.java

/**
 * Counts text lines available in input.
 *
 * @param reader/* w  ww  . j a va2 s  . co m*/
 *            a {@link java.io.Reader} object to provide the underlying input stream
 * @return number of lines currently available in input
 * @throws java.io.IOException
 *             If an I/O error occurs
 * @deprecated use {@link #countLines(java.io.InputStream)} instead
 */
@Deprecated
public static int countLines(Reader reader) throws IOException {
    int lCount = 0;
    LineNumberReader lineReader = null;
    try {
        lineReader = new LineNumberReader(reader);
        lineReader.skip(Long.MAX_VALUE);
        // NOTE: Add 1 because line index starts at 0
        lCount = lineReader.getLineNumber() + 1;
    } finally {
        close(lineReader);
    }

    return lCount;
}

From source file:net.flamefeed.ftb.modpackupdater.FileOperator.java

/**
 * This method will download the hash-file from the server and
 * will extract data from it and populate the remoteHashes 2d array.
 *
 * @throws java.lang.IOException/*from  w w w .  j a  va2  s  .co m*/
 */

private void parseHashfile() throws IOException {
    int numRemoteFiles;
    String[] currentLine;
    FileReader fr;
    BufferedReader br;
    LineNumberReader lnr;

    downloadFile(HASHFILE_NAME);

    /*
     * Compute the number of lines in the hash-file. This corresponds to the
     * number of files on the remote server, and therefore the length of the 
     * hashFiles outer array.
     */

    fr = new FileReader(pathMinecraft + "/" + HASHFILE_NAME);
    lnr = new LineNumberReader(fr);
    lnr.skip(Long.MAX_VALUE);
    numRemoteFiles = lnr.getLineNumber();
    fr.close();

    /*
     * Populate the remoteHashes[][] array with data from the hash file
     */

    remoteHashes = new String[numRemoteFiles][2];

    fr = new FileReader(pathMinecraft + "/" + HASHFILE_NAME);
    br = new BufferedReader(fr);

    /*
     * The hash-file format is as follows:
     * <MD5 hash><tab character><relative filename><newline character>
     * Splitting each line using a tab character "\t" separates the filename
     * from the MD5 hash.
     */

    for (int i = 0; i < numRemoteFiles; i++) {
        currentLine = br.readLine().split("\t", 2);
        remoteHashes[i][MD5HASH] = currentLine[MD5HASH];
        remoteHashes[i][FILENAME] = currentLine[FILENAME];
    }

    fr.close();
}

From source file:org.silverpeas.core.silvertrace.DefaultSilverpeasTrace.java

@Deprecated
@Override// w w  w .  j a  v  a2  s  . c o m
public String[] getEndFileTrace(String nbLines) {
    LineNumberReader lnr = null;
    File theFile = new File(errorDir + "/traces.txt");
    List<String> ar = new ArrayList<String>();
    try {
        // Get file length
        long fileLength = theFile.length();
        if (fileLength == 0L) {
            return ArrayUtils.EMPTY_STRING_ARRAY;
        }
        int nbl = Integer.parseInt(nbLines);
        lnr = new LineNumberReader(new FileReader(theFile));
        if (nbl > 0) {
            if ((nbl + 1) * 100 < fileLength) {
                lnr.skip(fileLength - ((nbl + 1) * 100));
            }
        }
        String line = lnr.readLine();
        while (line != null) {
            line = lnr.readLine();
            if (line != null) {
                ar.add(line);
            }
        }
        return ar.toArray(new String[ar.size()]);
    } catch (Exception e) {
        error("silvertrace", "SilverTrace.getEndFileTrace()", "silvertrace.ERR_RUNTIME_ERROR_OCCUR",
                "File NOT FOUND :" + errorDir + "/traces.txt", e);
        return ArrayUtils.EMPTY_STRING_ARRAY;
    } finally {
        IOUtils.closeQuietly(lnr);
    }
}

From source file:com.stratelia.silverpeas.silvertrace.SilverTrace.java

static public String[] getEndFileTrace(String nbLines) {
    LineNumberReader lnr = null;
    File theFile = new File(errorDir + "/traces.txt");
    List<String> ar = new ArrayList<String>();
    try {/*from www  . ja  v  a2  s  .c  om*/
        // Get file length
        long fileLength = theFile.length();
        if (fileLength == 0L) {
            return ArrayUtils.EMPTY_STRING_ARRAY;
        }
        int nbl = Integer.parseInt(nbLines);
        lnr = new LineNumberReader(new FileReader(theFile));
        if (nbl > 0) {
            if ((nbl + 1) * 100 < fileLength) {
                lnr.skip(fileLength - ((nbl + 1) * 100));
            }
        }
        String line = lnr.readLine();
        while (line != null) {
            line = lnr.readLine();
            if (line != null) {
                ar.add(line);
            }
        }
        return ar.toArray(new String[ar.size()]);
    } catch (Exception e) {
        SilverTrace.error("silvertrace", "SilverTrace.getEndFileTrace()", "silvertrace.ERR_RUNTIME_ERROR_OCCUR",
                "File NOT FOUND :" + errorDir + "/traces.txt", e);
        return ArrayUtils.EMPTY_STRING_ARRAY;
    } finally {
        IOUtils.closeQuietly(lnr);
    }
}

From source file:org.agnitas.beans.impl.MailingImpl.java

@Override
public DynamicTag findNextDynTag(String aTemplate, ApplicationContext con) throws Exception {
    int valueTagStartPos;
    int oldPos;//from w  w  w.  java  2 s .c o  m
    DynamicTag aDynTag = null;
    TagDetails aStartTag = null;
    TagDetails aEndTag = null;
    TagDetails aValueTag = null;

    aStartTag = getOneTag(aTemplate, "agnDYN", searchPos, con);
    if (aStartTag == null)
        return null;

    aStartTag.analyzeParameters();
    aStartTag.findTagParameters();

    searchPos = aStartTag.getEndPos();

    aDynTag = (DynamicTag) con.getBean("DynamicTag");
    aDynTag.setCompanyID(companyID);
    aDynTag.setMailingID(id);
    aDynTag.setComplex(aStartTag.isComplex());
    aDynTag.setDynName(aStartTag.getName());
    int group = 0;

    Map<String, String> params = aStartTag.getTagParameters();

    if (params != null) {
        String gname = (String) params.get("group");

        if (gname != null) {
            DynamicTagDao dao = (DynamicTagDao) con.getBean("DynamicTagDao");
            group = dao.getIdForName(this.id, gname);
        }
    }
    aDynTag.setGroup(group);

    if (aStartTag.isComplex()) {
        oldPos = searchPos;
        do {
            aEndTag = getOneTag(aTemplate, "/agnDYN", searchPos, con);
            if (aEndTag == null) {
                LineNumberReader aReader = new LineNumberReader(new StringReader(aTemplate));
                aReader.skip(searchPos);
                throw new Exception("NoEndTag$" + aReader.getLineNumber() + "$" + aStartTag.getName());
            }
            searchPos = aEndTag.getEndPos();
            aEndTag.analyzeParameters();
        } while (aStartTag.getName().compareTo(aEndTag.getName()) != 0);
        String valueArea = aTemplate.substring(aStartTag.getEndPos(), aEndTag.getStartPos());
        valueTagStartPos = 0;
        do {
            aValueTag = getOneTag(valueArea, "agnDVALUE", valueTagStartPos, con);
            if (aValueTag == null) {
                LineNumberReader aReader = new LineNumberReader(new StringReader(aTemplate));
                aReader.skip(searchPos);
                throw new Exception("NoValueTag$" + aReader.getLineNumber() + "$" + aStartTag.getName());
            }
            valueTagStartPos = aValueTag.getEndPos();
            aValueTag.analyzeParameters();
        } while (aStartTag.getName().compareTo(aValueTag.getName()) != 0);
        searchPos = oldPos;
        aDynTag.setStartTagStart(aStartTag.getStartPos());
        aDynTag.setStartTagEnd(aStartTag.getEndPos());
        aDynTag.setValueTagStart(aStartTag.getEndPos() + aValueTag.getStartPos());
        aDynTag.setValueTagEnd(aStartTag.getEndPos() + aValueTag.getEndPos());
        aDynTag.setEndTagStart(aEndTag.getStartPos());
        aDynTag.setEndTagEnd(aEndTag.getEndPos());
    } else {
        aDynTag.setStartTagStart(aStartTag.getStartPos());
        aDynTag.setStartTagEnd(aStartTag.getEndPos());
    }

    return aDynTag;
}

From source file:org.ngrinder.perftest.service.PerfTestService.java

private int getRecordInterval(int imageWidth, File dataFile) {
    int pointCount = Math.max(imageWidth, MAX_POINT_COUNT);
    FileInputStream in = null;// w  ww . ja v  a  2  s  . co m
    InputStreamReader isr = null;
    LineNumberReader lnr = null;
    int interval = 0;
    try {
        in = new FileInputStream(dataFile);
        isr = new InputStreamReader(in);
        lnr = new LineNumberReader(isr);
        lnr.skip(dataFile.length());
        interval = Math.max((lnr.getLineNumber() + 1) / pointCount, 1);
    } catch (FileNotFoundException e) {
        LOGGER.error("data file not exist:{}", dataFile);
        LOGGER.error(e.getMessage(), e);
    } catch (IOException e) {
        LOGGER.error("Error while getting data file:{}", dataFile);
        LOGGER.error(e.getMessage(), e);
    } finally {
        IOUtils.closeQuietly(lnr);
        IOUtils.closeQuietly(isr);
        IOUtils.closeQuietly(in);
    }
    return interval;
}

From source file:org.ngrinder.perftest.service.PerfTestService.java

/**
 * Get the monitor data interval value. In the normal, the image width is 700, and if the data count is too big,
 * there will be too many points in the chart. So we will calculate the interval to get appropriate count of data to
 * display. For example, interval value "2" means, get one record for every "2" records.
 *
 * @param testId     test id// w  w  w . ja v  a 2 s  .  c o  m
 * @param targetIP   ip address of monitor target
 * @param imageWidth image with of the chart.
 * @return interval value.
 */
public int getMonitorGraphInterval(long testId, String targetIP, int imageWidth) {
    File monitorDataFile = new File(config.getHome().getPerfTestReportDirectory(String.valueOf(testId)),
            MONITOR_FILE_PREFIX + targetIP + ".data");

    int pointCount = Math.max(imageWidth, MAX_POINT_COUNT);
    FileInputStream in = null;
    InputStreamReader isr = null;
    LineNumberReader lnr = null;
    int interval = 0;
    try {
        in = new FileInputStream(monitorDataFile);
        isr = new InputStreamReader(in);
        lnr = new LineNumberReader(isr);
        lnr.skip(monitorDataFile.length());
        int lineNumber = lnr.getLineNumber() + 1;
        interval = Math.max(lineNumber / pointCount, 1);
    } catch (FileNotFoundException e) {
        LOGGER.info("Monitor data file does not exist at {}", monitorDataFile);
    } catch (IOException e) {
        LOGGER.info("Error while getting monitor:{} data file:{}", targetIP, monitorDataFile);
    } finally {
        IOUtils.closeQuietly(lnr);
        IOUtils.closeQuietly(isr);
        IOUtils.closeQuietly(in);
    }
    return interval;
}

From source file:org.ngrinder.perftest.service.PerfTestService.java

/**
 * get the data point interval of report data. Use dataPointCount / imgWidth as the interval. if interval is 1, it
 * means we will get all point from report. If interval is 2, it means we will get 1 point from every 2 data.
 *
 * @param testId   test id/*from ww w . jav a 2s .  com*/
 * @param dataType data type
 * @param imgWidth image width
 * @return interval interval value
 */
public int getReportDataInterval(long testId, String dataType, int imgWidth) {
    int pointCount = Math.max(imgWidth, MAX_POINT_COUNT);
    File reportFolder = config.getHome().getPerfTestReportDirectory(String.valueOf(testId));
    int interval = 0;
    File targetFile = new File(reportFolder, dataType + DATA_FILE_EXTENSION);
    if (!targetFile.exists()) {
        LOGGER.warn("Report {} for test {} does not exist.", dataType, testId);
        return 0;
    }
    LineNumberReader lnr = null;

    FileInputStream in = null;
    InputStreamReader isr = null;
    try {
        in = new FileInputStream(targetFile);
        isr = new InputStreamReader(in);
        lnr = new LineNumberReader(isr);
        lnr.skip(targetFile.length());
        int lineNumber = lnr.getLineNumber() + 1;
        interval = Math.max(lineNumber / pointCount, 1);
    } catch (Exception e) {
        LOGGER.error("Failed to get report data for {}", dataType, e);
    } finally {
        IOUtils.closeQuietly(lnr);
        IOUtils.closeQuietly(isr);
        IOUtils.closeQuietly(in);
    }

    return interval;
}