Example usage for org.apache.commons.io LineIterator hasNext

Introduction

In this page you can find the example usage for org.apache.commons.io LineIterator hasNext.

Prototype

public boolean hasNext() 

Source Link

Document

Indicates whether the Reader has more lines.

Usage

From source file:com.mewmew.fairy.v1.book.Xargs.java

public static void exec(Map<String, String> env, String cmd[], boolean redirectError, Output<String> output)
        throws IOException, InterruptedException {
    ProcessBuilder pb = new ProcessBuilder(cmd);
    if (env != null) {
        pb.environment().putAll(env);/* w  w  w.j av a  2s . c o  m*/
    }
    if (redirectError) {
        pb.redirectErrorStream(true);
    }
    final Process p = pb.start();
    if (!redirectError) {
        new Thread(new Runnable() {
            public void run() {
                try {
                    LineIterator err = new LineIterator(new InputStreamReader(p.getErrorStream()));
                    while (err.hasNext()) {
                        err.next();
                    }
                } finally {
                }
            }
        }).start();
    }
    LineIterator out = new LineIterator(new InputStreamReader(p.getInputStream()));
    while (out.hasNext()) {
        output.output(out.nextLine());
    }
    int code = p.waitFor();
    if (code != 0) {
        throw new RuntimeException(String.format("return != 0, code = %d", code));
    }
}

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From source file:edu.umn.msi.tropix.proteomics.test.VerifyUtils.java

public static void verifyMGF(final InputStream stream) {
    final LineIterator lineIterator = IOUtils.lineIterator(new InputStreamReader(stream));
    assert lineIterator.hasNext();
    String line = lineIterator.nextLine();
    assert line.startsWith("COM=");
    assert lineIterator.hasNext();
    line = lineIterator.nextLine();//from w  w  w.j av  a  2  s  .  c  o  m
    assert line.startsWith("CHARGE=");
    while (true) {
        if (!lineIterator.hasNext()) {
            break;
        }
        line = lineIterator.nextLine();
        assert line.equals("BEGIN IONS") : line;
        line = lineIterator.nextLine();
        assert line.matches(
                "PEPMASS=(\\d*\\.?\\d*)( (\\d*\\.?\\d*))?") : "Does not appear to be a peptide mass line "
                        + line;
        line = lineIterator.nextLine();
        assert line.matches("CHARGE=[\\d, \\+]+") : line;
        line = lineIterator.nextLine();
        assert line.startsWith("SCANS=") : line;
        line = lineIterator.nextLine();
        assert line.startsWith("TITLE=") : line;
        while (true) {
            line = lineIterator.nextLine();

            if (line.equals("END IONS")) {
                break;
            } else if (line
                    .matches(RegexUtils.FLOATING_POINT_LITERAL + "\\s+" + RegexUtils.FLOATING_POINT_LITERAL)) {
                continue;
            } else {
                assert false : "MGF contains invalid line " + line;
            }
        }
    }
}

---

From source file:com.comcast.cats.monitor.util.FileSearchUtil.java

public static List<String> getLinesByRegex(String filePath, String expression) throws IOException {
    if ((null == expression) || (expression.isEmpty()) || (null == filePath) || (filePath.isEmpty())) {
        throw new IllegalArgumentException("Expressions/FilePath is NULL of EMPTY !!!");
    }//  ww  w  .java 2 s.  c om

    File file = new File(filePath);
    Pattern pattern = Pattern.compile(expression);

    List<String> lines = new LinkedList<String>();

    if (file.exists()) {
        LineIterator lineIterator = FileUtils.lineIterator(file, UTF_8_ENCODING);
        try {
            while (lineIterator.hasNext()) {
                String line = lineIterator.nextLine();

                if (pattern.matcher(line).find()) {
                    lines.add(line);
                }
            }
        } finally {
            LineIterator.closeQuietly(lineIterator);
        }
    }

    return lines;
}

---

From source file:mitm.common.postfix.PostfixMainConfigParser.java

private static List<String> normalize(Reader config) {
    List<String> lines = new LinkedList<String>();

    LineIterator it = new LineIterator(config);

    String line = "";

    try {/*from ww  w.  j  av a2  s .  co m*/
        while (it.hasNext()) {
            String nextLine = it.nextLine();

            Matcher matcher = CONTINUATION.matcher(nextLine);

            if (!nextLine.trim().startsWith("#") && matcher.matches()) {
                /* its a continuation line */
                line = line + LF + nextLine;
            } else {
                matcher = NAME_VALUE.matcher(nextLine);

                if (matcher.matches()) {
                    /* its a name/value line */

                    if (StringUtils.isNotEmpty(line)) {
                        /* store the previous line because it is finished */
                        lines.add(line);
                    }

                    line = nextLine;
                } else {
                    /* it's some other line like a comment */
                    if (StringUtils.isNotEmpty(line)) {
                        /* store the previous line because it is finished */
                        lines.add(line);
                    }
                    lines.add(nextLine);

                    line = "";
                }
            }
        }
        if (StringUtils.isNotEmpty(line)) {
            lines.add(line);
        }
    } finally {
        LineIterator.closeQuietly(it);
    }

    return lines;
}

---

From source file:it.geosolutions.tools.io.file.writer.Writer.java

/**
 * Open 'destination' file in append mode and append content of the
 * 'toAppend' file/*from   w  ww  . ja  va  2s. c o m*/
 * 
 * @param toAppend
 * @param destination
 * @throws IOException
 */
public static void appendFile(File toAppend, File destination) throws IOException {
    FileWriter fw = null;
    BufferedWriter bw = null;
    LineIterator it = null;
    try {
        fw = new FileWriter(destination, true);
        bw = new BufferedWriter(fw);
        it = FileUtils.lineIterator(toAppend);
        while (it.hasNext()) {
            bw.append(it.nextLine());
            bw.newLine();
        }
        bw.flush();
    } finally {
        if (it != null) {
            it.close();
        }
        if (bw != null) {
            IOUtils.closeQuietly(bw);
        }
        if (fw != null) {
            IOUtils.closeQuietly(fw);
        }
    }
}

---

From source file:com.polytech4A.cuttingstock.core.resolution.util.context.ContextLoaderUtils.java

/**
 * Line Parser of global first infomrations.
 *
 * @param iterator iterator of the openfile.
 * @param regex    regex of the line./*w  ww .  j a v  a  2s  . c  o m*/
 * @return value loaded.
 * @throws MalformedContextFileException if the Context file don't have the right structure.
 */
private static Double loadLine(LineIterator iterator, String regex) throws MalformedContextFileException {
    MalformedContextFileException mctx = new MalformedContextFileException();
    if (iterator.hasNext()) {
        String line = iterator.nextLine();
        if (line.matches(regex)) {
            return Double.parseDouble(line.split("=")[1]);
        } else {
            throw mctx;
        }
    } else {
        throw mctx;
    }
}

---

From source file:fr.ericlab.util.Util.java

static public LinkedList<String> readStopWords(String pathToStopwordsFile) {
    LinkedList<String> stopWords = new LinkedList<>();
    if (pathToStopwordsFile != null) {
        LineIterator it = null;
        try {/*w ww.  j  a v  a2s  .com*/
            it = FileUtils.lineIterator(new File(pathToStopwordsFile), "UTF-8");
            while (it.hasNext()) {
                stopWords.add(it.nextLine());
            }
        } catch (IOException ex) {
            Logger.getLogger(MABED.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            LineIterator.closeQuietly(it);
        }
    }
    return stopWords;
}

---

From source file:com.redhat.rhn.common.util.FileUtils.java

/**
 * Reads and returns the last n lines from a given file as string.
 * @param pathToFile path to file//from www  .j a  va 2  s  . c om
 * @param lines size of the tail
 * @return tail of file as string
 */
public static String getTailOfFile(String pathToFile, Integer lines) {
    InputStream fileStream = null;
    CircularFifoBuffer buffer = new CircularFifoBuffer(lines);
    try {
        fileStream = new FileInputStream(pathToFile);
        LineIterator it = org.apache.commons.io.IOUtils.lineIterator(fileStream, (String) null);
        while (it.hasNext()) {
            buffer.add(it.nextLine());
        }
    } catch (FileNotFoundException e) {
        log.error("File not found: " + pathToFile);
        throw new RuntimeException(e);
    } catch (IOException e) {
        log.error("Could not read from: " + pathToFile);
        throw new RuntimeException(e);
    } finally {
        org.apache.commons.io.IOUtils.closeQuietly(fileStream);
    }
    // Construct a string from the buffered lines
    StringBuilder sb = new StringBuilder();
    for (Object s : buffer) {
        sb.append(s);
        sb.append(System.getProperty("line.separator"));
    }
    return sb.toString();
}

---

From source file:automaticdatabaseupdate.FileHandler.java

/**
 *
 * @param strFilePath    - path of given file          e.g. "D:\\EGYETEM\\Szakdolgozat\\Mernoki_tervezes\\update files\\sr28upd\\ADD_NUTR.txt"
 * @param strFileType    - type of the given file      e.g. AddFood
 * @param TList          - list to fill with data      e.g. List<FileFoodStruct> ListFFS
 *//* w w w .  ja  v a 2 s .  c om*/
public static <T> void readFile(String strFilePath, List<T> TList, String strFileType) {
    TList.clear();

    try {

        File file = FileUtils.getFile(strFilePath);
        LineIterator iter = FileUtils.lineIterator(file);

        while (iter.hasNext()) {
            String strLine = iter.next();

            switch (strFileType) {
            case "ADD_FOOD": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileFoodStruct Object = new FileFoodStruct(Integer.valueOf(strList.get(0)), strList.get(2),
                        strList.get(3), Integer.valueOf(strList.get(8)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "ADD_NUTR": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileNutrientStruct Object = new FileNutrientStruct(Integer.valueOf(strList.get(0)),
                        Integer.valueOf(strList.get(1)), Double.valueOf(strList.get(2)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "ADD_WGT": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileWeightStruct Object = new FileWeightStruct(Integer.valueOf(strList.get(0)),
                        Double.valueOf(strList.get(2)), strList.get(3), Double.valueOf(strList.get(4)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "CHG_FOOD": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileFoodStruct Object = new FileFoodStruct(Integer.valueOf(strList.get(0)), strList.get(2),
                        strList.get(3), Integer.valueOf(strList.get(8)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "CHG_NUTR": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileNutrientStruct Object = new FileNutrientStruct(Integer.valueOf(strList.get(0)),
                        Integer.valueOf(strList.get(1)), Double.valueOf(strList.get(2)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "CHG_WGT": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileWeightStruct Object = new FileWeightStruct(Integer.valueOf(strList.get(0)),
                        Double.valueOf(strList.get(2)), strList.get(3), Double.valueOf(strList.get(4)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "DEL_FOOD": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileFoodStruct Object = new FileFoodStruct(Integer.valueOf(strList.get(0)), strList.get(1));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "DEL_NUTR": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileNutrientStruct Object = new FileNutrientStruct(Integer.valueOf(strList.get(0)),
                        Integer.valueOf(strList.get(1)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "DEL_WGT": {
                ArrayList<String> strList = ParseUpdateFile(strLine);
                FileWeightStruct Object = new FileWeightStruct(Integer.valueOf(strList.get(0)),
                        Double.valueOf(strList.get(2)), strList.get(3), Double.valueOf(strList.get(4)));
                TList.add((T) Object);
                System.out.println(Object.toString());
                break;
            }
            case "LOG_FILE": {
                ArrayList<String> strList = ParseLogFile(strLine);
                TraceMessage Object = new TraceMessage(strList.get(0), strList.get(1));
                TList.add((T) Object);
                break;
            }
            }
        }
        //System.out.println( "Total line: " + moduleCounter );
        iter.close();

    } catch (IOException ex) {
        Logger.getLogger(FileHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:fr.inria.maestro.lga.graph.model.impl.nodenamer.NodeNamerImpl.java

private static int countLines(final File file, final String encoding) throws IOException {
    int count = 0;
    final LineIterator it = FileUtils.lineIterator(file, encoding);
    try {//w w  w  . j  a va2  s . com
        while (it.hasNext()) {
            it.next();
            count++;
        }
    } finally {
        it.close();
    }

    return count;
}

---

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