Example usage for java.io LineNumberReader LineNumberReader

Introduction

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

Prototype

public LineNumberReader(Reader in) 

Source Link

Document

Create a new line-numbering reader, using the default input-buffer size.

Usage

From source file:org.kalypso.model.hydrology.internal.postprocessing.LzsToGml.java

private double readLzgFile(final FileReader fileReader) throws NumberFormatException, IOException {
    final LineNumberReader reader = new LineNumberReader(fileReader);

    ChannelStatus status = ChannelStatus.SEARCH_HEADER;

    final String iniDate = m_dateFormat.format(m_initialDate);

    while (reader.ready()) {
        final String line = reader.readLine();
        if (line == null)
            break;

        final String cleanLine = line.trim().replaceAll("\\s+", " "); //$NON-NLS-1$ //$NON-NLS-2$
        switch (status) {
        case SEARCH_HEADER:
            if (cleanLine.endsWith("qgs") && cleanLine.startsWith(iniDate)) //$NON-NLS-1$
                // 19960521 00 h 1 qgs
                // 1 0.000
                status = ChannelStatus.READ_QGS;
            break;

        case READ_QGS: // Gesamtabfluss
            final String[] strings = cleanLine.split(" "); //$NON-NLS-1$
            return Double.valueOf(strings[1]);
        }/*from w ww  . j  ava2s  .c  o m*/
    }

    return Double.NaN;
}

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From source file:org.apache.james.server.core.MimeMessageWrapper.java

/**
 * Corrects JavaMail 1.1 version which always returns -1. Only corrected for
 * content less than 5000 bytes, to avoid memory hogging.
 *//*from   w w w  .j a  v a2  s  .co  m*/
@Override
public int getLineCount() throws MessagingException {
    InputStream in;
    try {
        in = getContentStream();
    } catch (Exception e) {
        return -1;
    }
    if (in == null) {
        return -1;
    }
    // Wrap input stream in LineNumberReader
    // Not sure what encoding to use really...
    try (InputStream input = in; InputStreamReader isr = builderReader(input)) {
        // Read through all the data
        char[] block = new char[4096];
        try (LineNumberReader counter = new LineNumberReader(isr)) {
            while (counter.read(block) > -1) {
                // Just keep reading
            }
            return counter.getLineNumber();
        }
    } catch (IOException ioe) {
        return -1;
    }
}

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From source file:org.apache.james.core.MimeMessageWrapper.java

/**
 * Corrects JavaMail 1.1 version which always returns -1. Only corrected for
 * content less than 5000 bytes, to avoid memory hogging.
 */// www. j ava  2s .com
@Override
public int getLineCount() throws MessagingException {
    InputStream in;
    try {
        in = getContentStream();
    } catch (Exception e) {
        return -1;
    }
    if (in == null) {
        return -1;
    }
    // Wrap input stream in LineNumberReader
    // Not sure what encoding to use really...
    InputStreamReader isr = null;
    LineNumberReader counter = null;
    try {
        if (getEncoding() != null) {
            isr = new InputStreamReader(in, getEncoding());
            counter = new LineNumberReader(isr);
        } else {
            isr = new InputStreamReader(in);
            counter = new LineNumberReader(isr);
        }
        // Read through all the data
        char[] block = new char[4096];
        while (counter.read(block) > -1) {
            // Just keep reading
        }
        return counter.getLineNumber();
    } catch (IOException ioe) {
        return -1;
    } finally {
        IOUtils.closeQuietly(counter);
        IOUtils.closeQuietly(isr);
        IOUtils.closeQuietly(in);
    }
}

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From source file:edu.stanford.muse.index.Indexer.java

public static Set<String> readFileAndInternStrings(String file) {
    Set<String> result = new LinkedHashSet<String>();
    try {//  w w w  .  j ava  2 s . c om
        Reader r = null;
        if (file.toLowerCase().endsWith(".gz"))
            r = new InputStreamReader(new GZIPInputStream(new FileInputStream(file)));
        else
            r = new FileReader(file);

        LineNumberReader lnr = new LineNumberReader(r);
        while (true) {
            String word = lnr.readLine();
            if (word == null) {
                lnr.close();
                break;
            }
            word = word.trim();
            if (word.startsWith("#") || word.length() == 0)
                continue;
            word = IndexUtils.canonicalizeMultiWordTerm(word, false); // TOFIX: not really sure if stemming shd be on
            word = InternTable.intern(word);
            result.add(word);
        }
    } catch (IOException e) {
        log.warn("Exception reading file " + file + ": " + e + Util.stackTrace(e));
    }

    return result;
}

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

@Override
public DynamicTag findNextDynTag(String aTemplate, ApplicationContext con) throws Exception {
    int valueTagStartPos;
    int oldPos;/*from  ww  w . j av  a  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;
}

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From source file:org.beanfuse.struts2.action.EntityDrivenAction.java

/**
 * /* w  w w  .  j a v a 2 s . c  o  m*/
 * 
 * @param upload
 * @param clazz
 * @return
 */
protected EntityImporter buildEntityImporter(String upload, Class clazz) {
    try {
        File[] files = (File[]) ActionContext.getContext().getParameters().get(upload);
        if (files == null || files.length < 1) {
            logger.error("cannot get {} file.", upload);
        }
        String fileName = get(upload + "FileName");
        InputStream is = new FileInputStream(files[0]);
        if (fileName.endsWith(".xls")) {
            HSSFWorkbook wb = new HSSFWorkbook(is);
            if (wb.getNumberOfSheets() < 1 || wb.getSheetAt(0).getLastRowNum() == 0) {
                return null;
            }
            EntityImporter importer = (clazz == null) ? new DefaultEntityImporter()
                    : new DefaultEntityImporter(clazz);
            importer.setReader(new ExcelItemReader(wb, 1));
            put("importer", importer);
            return importer;
        } else {
            LineNumberReader reader = new LineNumberReader(new InputStreamReader(is));
            if (null == reader.readLine())
                return null;
            reader.reset();
            EntityImporter importer = (clazz == null) ? new DefaultEntityImporter()
                    : new DefaultEntityImporter(clazz);
            importer.setReader(new CSVReader(reader));
            return importer;
        }
    } catch (Exception e) {
        logger.error("error", e);
        return null;
    }
}

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From source file:org.guzz.util.PropertyUtil.java

/**
 * Mysql?my.cnf???[key]keykey[key]value?PropertiesMap
 * //from   ww w.  ja v  a  2  s.c  o m
 * @param resource ???resource
 * @return Map ??vsprop?Properties[]?null
 */
public static Map loadGroupedProps(Resource resource) {
    Map resources = new HashMap();

    LineNumberReader lnr = null;
    String line = null;

    String groupName = null;
    Properties props = null;

    try {
        lnr = new LineNumberReader(new InputStreamReader(resource.getInputStream()));

        while ((line = lnr.readLine()) != null) {
            line = line.trim();
            int length = line.length();

            if (length == 0)
                continue;
            if (line.charAt(0) == '#')
                continue;
            if (line.startsWith("rem "))
                continue;

            if (line.charAt(0) == '[' && line.charAt(length - 1) == ']') {//[xxxx]
                //??
                if (groupName != null) {
                    Properties[] p = (Properties[]) resources.get(groupName);

                    if (p == null) {
                        resources.put(groupName, new Properties[] { props });
                    } else {
                        resources.put(groupName, ArrayUtil.addToArray(p, props));
                    }
                }

                //?
                groupName = line.substring(1, length - 1).trim();
                props = new Properties();
            } else { //
                if (groupName == null) {
                    log.warn("ignore ungrouped config property:" + line);
                } else {
                    int pos = line.indexOf('=');

                    if (pos < 1) {
                        props.put(line, "");
                        log.warn("loading special config property:" + line);
                    } else {
                        String key = line.substring(0, pos).trim();
                        String value = line.substring(pos + 1, length).trim();

                        props.put(key, value);
                    }
                }
            }
        }
    } catch (Exception e) {
        if (log.isDebugEnabled()) {
            log.debug("load resource failed. resouce:[" + resource + "], msg:" + e.getMessage());
        }

        return null;
    } finally {
        CloseUtil.close(lnr);
        CloseUtil.close(resource);
    }

    //??
    if (groupName != null) {
        Properties[] p = (Properties[]) resources.get(groupName);

        if (p == null) {
            resources.put(groupName, new Properties[] { props });
        } else {
            resources.put(groupName, ArrayUtil.addToArray(p, props));
        }
    }

    return resources;

}

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From source file:de.upb.timok.run.GenericSmacPipeline.java

private void splitTrainTestFile(String timedInputFile, String timedInputTrainFile, String timedInputTestFile,
        double trainPercentage, double testPercentage, double anomalyPercentage, boolean isRti)
        throws IOException {
    logger.info("TimedInputFile=" + timedInputFile);
    final File f = new File(timedInputFile);
    System.out.println(f);//from  www  . ja  v a 2 s  .  c  o  m
    final LineNumberReader lnr = new LineNumberReader(new FileReader(timedInputFile));
    lnr.skip(Long.MAX_VALUE);
    int samples = lnr.getLineNumber();
    lnr.close();
    final int trainingSamples = (int) (samples * trainPercentage);
    final int testSamples = (int) (samples * testPercentage);
    final int anomalies = (int) (anomalyPercentage * testSamples);
    final int writtenTrainingSamples = 0;
    final int writtenTestSamples = 0;
    int insertedAnomalies = 0;
    final BufferedReader br = Files.newBufferedReader(Paths.get(timedInputFile), StandardCharsets.UTF_8);
    String line = null;
    final BufferedWriter trainWriter = Files.newBufferedWriter(Paths.get(timedInputTrainFile),
            StandardCharsets.UTF_8);
    final BufferedWriter testWriter = Files.newBufferedWriter(Paths.get(timedInputTestFile),
            StandardCharsets.UTF_8);
    final Random r = new Random(MasterSeed.nextLong());
    final Random mutation = new Random(MasterSeed.nextLong());
    boolean force = false;
    int lineIndex = 0;
    int linesLeft;
    int anomaliesToInsert;
    if (isRti) {
        br.readLine();
        samples--;
    }
    while ((line = br.readLine()) != null) {
        if (writtenTrainingSamples < trainingSamples && writtenTestSamples < testSamples) {
            // choose randomly according to train/test percentage
            if (r.nextDouble() > testPercentage) {
                // write to train
                writeSample(new TimedSequence(line, true, false).toTrebaString(), trainWriter);
            } else {
                // write to test
                insertedAnomalies = testAndWriteAnomaly(anomalies, insertedAnomalies, anomalyPercentage, line,
                        testWriter, mutation, force);
            }
        } else if (writtenTrainingSamples >= trainingSamples) {
            insertedAnomalies = testAndWriteAnomaly(anomalies, insertedAnomalies, anomalyPercentage, line,
                    testWriter, mutation, force);
        } else if (writtenTestSamples >= testSamples) {
            // only write trainSamples from now on
            writeSample(new TimedSequence(line, true, false).toTrebaString(), trainWriter);
        }
        lineIndex++;
        linesLeft = samples - lineIndex;
        anomaliesToInsert = anomalies - insertedAnomalies;
        if (linesLeft <= anomaliesToInsert) {
            force = true;
        }
    }
    br.close();
    trainWriter.close();
    testWriter.close();
}

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From source file:gpl.pierrick.brihaye.aramorph.InMemoryDictionaryHandler.java

/** Loads a compatibility table into a <CODE>Set</CODE>.
 * @param set The set// ww  w.ja v a 2 s.  c om
 * @param name A human-readable name
 * @param is The stream
 * @throws RuntimeException If a problem occurs when reading the compatibility table
 */
private static void loadCompatibilityTable(Set set, String name, InputStream is) throws RuntimeException {
    System.out.print("Loading compatibility table : " + name + " ");
    try {
        LineNumberReader IN = new LineNumberReader(new InputStreamReader(is, "ISO8859_1"));
        String line = null;
        while ((line = IN.readLine()) != null) {
            if ((IN.getLineNumber() % 1000) == 1)
                System.out.print(".");
            if (!line.startsWith(";")) { //Ignore comments
                line = line.trim();
                line = line.replaceAll("\\s+", " ");
                set.add(line);
            }
        }
        IN.close();
        System.out.println();
        System.out.println(set.size() + " entries");
    } catch (IOException e) {
        throw new RuntimeException("Can not open : " + name);
    }
}

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From source file:com.raulexposito.alarife.sqlexecutor.SQLExecutor.java

/**
 * Reads the content of a script file and, for each command on it, generates a single command
 * @param file the script file with the commands
 * @return a list with the commands of the script
 * @throws java.io.IOException if the file cannot be readed
 *///from  w ww.jav a2  s .co  m
protected static List<String> getSQLCommandsFromScriptFile(final InputStream file) throws IOException {
    // list of commands to be returned
    final List<String> SQLCommands = new ArrayList<String>();

    // reader for the script file
    final LineNumberReader scriptFile = new LineNumberReader(
            new InputStreamReader(new BufferedInputStream(file), "ISO-8859-1"));

    // string builder where append the lines of the file
    final StringBuilder content = new StringBuilder();

    // next line to be readed from the script file
    String line;

    while ((line = scriptFile.readLine()) != null) {
        log.trace(line);
        line = line.trim();

        // deletes the comments
        if (line.indexOf(SQL_COMMENT) != NOT_EXISTS) {
            line = line.substring(0, line.indexOf(SQL_COMMENT));
        }

        content.append(line);

        // is the end of the command?
        if (line.endsWith(SQL_END_OF_COMMAND)) {
            SQLCommands.add(content.toString());
            content.setLength(0);
        }
    }

    return SQLCommands;
}

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