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:com.quartzdesk.executor.common.db.DatabaseScriptExecutor.java

/**
 * Read a script from the given resource and build a String containing the lines.
 *
 * @param scriptUrl the SQL script URL to be read from.
 * @return {@code String} containing the script lines.
 * @throws IOException in case of I/O errors.
 *//* w  w  w. jav a  2  s  .c om*/
private String readScript(URL scriptUrl) throws IOException {
    String statementSeparatorStart = commentPrefix + ' ' + STATEMENT_SEPARATOR_START;
    String statementSeparatorEnd = commentPrefix + ' ' + STATEMENT_SEPARATOR_END;

    LineNumberReader lnr = new LineNumberReader(
            new InputStreamReader(scriptUrl.openStream(), sqlScriptEncoding));
    try {
        String currentStatement = lnr.readLine();
        StringBuilder scriptBuilder = new StringBuilder();
        while (currentStatement != null) {
            if (StringUtils.isNotBlank(currentStatement)) {
                if (commentPrefix != null && !currentStatement.startsWith(commentPrefix)) {
                    if (scriptBuilder.length() > 0) {
                        scriptBuilder.append('\n');
                    }
                    scriptBuilder.append(currentStatement);
                }
                if (commentPrefix != null && (currentStatement.startsWith(statementSeparatorStart)
                        || currentStatement.startsWith(statementSeparatorEnd))) {
                    if (scriptBuilder.length() > 0) {
                        scriptBuilder.append('\n');
                    }
                    scriptBuilder.append(currentStatement);
                }
            }

            currentStatement = lnr.readLine();
        }
        maybeAddSeparatorToScript(scriptBuilder);
        return scriptBuilder.toString();
    } finally {
        IOUtils.close(lnr);
    }
}

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From source file:com.l2jfree.gameserver.instancemanager.leaderboards.ArenaManager.java

public void engineInit() {
    _ranks = new FastMap<Integer, ArenaRank>();
    String line = null;/* w  ww .j  a va2s  .com*/
    LineNumberReader lnr = null;
    String lineId = "";
    ArenaRank rank = null;
    File file = new File(Config.DATAPACK_ROOT, "data/arena.dat");

    try {
        boolean created = file.createNewFile();
        if (created)
            _log.info("ArenaManager: arena.dat was not existing and has been created.");
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            lnr = new LineNumberReader(new BufferedReader(new FileReader(file)));
            while ((line = lnr.readLine()) != null) {
                if (line.trim().length() == 0 || line.startsWith("#"))
                    continue;

                lineId = line;
                line = line.replaceAll(" ", "");

                String t[] = line.split(":");

                int owner = Integer.parseInt(t[0]);
                rank = new ArenaRank();

                rank.kills = Integer.parseInt(t[1].split("-")[0]);
                rank.death = Integer.parseInt(t[1].split("-")[1]);

                rank.name = t[2];

                _ranks.put(owner, rank);
            }
        } catch (Exception e) {
            _log.warn("ArenaManager.engineInit() >> last line parsed is \n[" + lineId + "]\n", e);
        } finally {
            IOUtils.closeQuietly(lnr);
        }

        startSaveTask();
        _log.info("ArenaManager: Loaded " + _ranks.size() + " player(s).");
    }
}

---

From source file:com.github.magicsky.sya.checkers.TestSourceReader.java

/**
 * Reads a section in comments form the source of the given class. The section
 * is started with '// {tag}' and ends with the first line not started by '//'
 *
 * @since 4.0/*w  w  w  .ja  v a2  s  .  co m*/
 */
public static String readTaggedComment(Bundle bundle, String srcRoot, Class clazz, final String tag)
        throws IOException {
    IPath filePath = new Path(srcRoot + '/' + clazz.getName().replace('.', '/') + ".java");

    InputStream in = FileLocator.openStream(bundle, filePath, false);
    LineNumberReader reader = new LineNumberReader(new InputStreamReader(in));
    boolean found = false;
    final StringBuilder content = new StringBuilder();
    try {
        String line = reader.readLine();
        while (line != null) {
            line = line.trim();
            if (line.startsWith("//")) {
                line = line.substring(2);
                if (found) {
                    content.append(line);
                    content.append('\n');
                } else {
                    line = line.trim();
                    if (line.startsWith("{" + tag)) {
                        if (line.length() == tag.length() + 1
                                || !Character.isJavaIdentifierPart(line.charAt(tag.length() + 1))) {
                            found = true;
                        }
                    }
                }
            } else if (found) {
                break;
            }
            line = reader.readLine();
        }
    } finally {
        reader.close();
    }
    Assert.assertTrue("Tag '" + tag + "' is not defined inside of '" + filePath + "'.", found);
    return content.toString();
}

---

From source file:com.l2jfree.gameserver.instancemanager.leaderboards.FishermanManager.java

public void engineInit() {
    _ranks = new FastMap<Integer, FishRank>();
    String line = null;/*from   www  .  ja va 2 s  .  c o  m*/
    LineNumberReader lnr = null;
    String lineId = "";
    FishRank rank = null;
    File file = new File(Config.DATAPACK_ROOT, "data/fish.dat");

    try {
        boolean created = file.createNewFile();
        if (created)
            _log.info("FishManager: fish.dat was not existing and has been created.");
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            lnr = new LineNumberReader(new BufferedReader(new FileReader(file)));
            while ((line = lnr.readLine()) != null) {
                if (line.trim().length() == 0 || line.startsWith("#"))
                    continue;

                lineId = line;
                line = line.replaceAll(" ", "");

                String t[] = line.split(":");

                int owner = Integer.parseInt(t[0]);
                rank = new FishRank();

                rank.cought = Integer.parseInt(t[1].split("-")[0]);
                rank.escaped = Integer.parseInt(t[1].split("-")[1]);

                rank.name = t[2];

                _ranks.put(owner, rank);
            }
        } catch (Exception e) {
            _log.warn("FishManager.engineInit() >> last line parsed is \n[" + lineId + "]\n", e);
        } finally {
            IOUtils.closeQuietly(lnr);
        }

        startSaveTask();
        _log.info("FishManager: Loaded " + _ranks.size() + " player(s).");
    }
}

---

From source file:org.apache.cocoon.generation.TextGenerator2.java

/**
 * Generate XML data./*from ww w .j  a va  2  s.  c o  m*/
 *
 * @throws IOException
 * @throws ProcessingException
 * @throws SAXException
 */
public void generate() throws IOException, SAXException, ProcessingException {
    InputStreamReader in = null;
    try {
        final InputStream sis = this.inputSource.getInputStream();
        if (sis == null) {
            throw new ProcessingException("Source '" + this.inputSource.getURI() + "' not found");
        }
        if (encoding != null) {
            in = new InputStreamReader(sis, encoding);
        } else {
            in = new InputStreamReader(sis);
        }
    } catch (SourceException se) {
        throw new ProcessingException("Error during resolving of '" + this.source + "'.", se);
    }
    LocatorImpl locator = new LocatorImpl();
    locator.setSystemId(this.inputSource.getURI());
    locator.setLineNumber(1);
    locator.setColumnNumber(1);
    /* Do not pass the source URI to the contentHandler, assuming that that is the LexicalTransformer. It does not have to be.
      contentHandler.setDocumentLocator(locator);
    */
    contentHandler.startDocument();
    AttributesImpl atts = new AttributesImpl();
    if (localizable) {
        atts.addAttribute("", "source", "source", "CDATA", locator.getSystemId());
        atts.addAttribute("", "line", "line", "CDATA", String.valueOf(locator.getLineNumber()));
        atts.addAttribute("", "column", "column", "CDATA", String.valueOf(locator.getColumnNumber()));
    }
    String nsPrefix = this.element.contains(":") ? this.element.replaceFirst(":.+$", "") : "";
    String localName = this.element.replaceFirst("^.+:", "");
    if (this.namespace.length() > 1)
        contentHandler.startPrefixMapping(nsPrefix, this.namespace);
    contentHandler.startElement(this.namespace, localName, this.element, atts);
    LineNumberReader reader = new LineNumberReader(in);
    String line;
    String newline = null;
    while (true) {
        if (newline == null) {
            line = convertNonXmlChars(reader.readLine());
        } else {
            line = newline;
        }
        if (line == null) {
            break;
        }
        newline = convertNonXmlChars(reader.readLine());
        if (newline != null) {
            line += SystemUtils.LINE_SEPARATOR;
        }
        locator.setLineNumber(reader.getLineNumber());
        locator.setColumnNumber(1);
        contentHandler.characters(line.toCharArray(), 0, line.length());
        if (newline == null) {
            break;
        }
    }
    reader.close();
    contentHandler.endElement(this.namespace, localName, this.element);
    if (this.namespace.length() > 1)
        contentHandler.endPrefixMapping(nsPrefix);
    contentHandler.endDocument();
}

---

From source file:org.marketcetera.strategyagent.StrategyAgent.java

/**
 * Parses the commands from the supplied commands file.
 *
 * @param inFile the file path/*from  w  ww  .ja v  a  2s . c  o  m*/
 *
 * @throws IOException if there were errors parsing the file.
 *
 * @return the number of errors encountered when parsing the command file.
 */
private int parseCommands(String inFile) throws IOException {
    int numErrors = 0;
    LineNumberReader reader = new LineNumberReader(new UnicodeFileReader(inFile));
    try {
        String line;
        while ((line = reader.readLine()) != null) {
            if (line.startsWith("#") || line.trim().isEmpty()) { //$NON-NLS-1$
                //Ignore comments and empty lines.
                continue;
            }
            int idx = line.indexOf(';'); //$NON-NLS-1$
            if (idx > 0) {
                String key = line.substring(0, idx);
                CommandRunner runner = sRunners.get(key);
                if (runner == null) {
                    numErrors++;
                    Messages.INVALID_COMMAND_NAME.error(this, key, reader.getLineNumber());
                    continue;
                }
                mCommands.add(new Command(runner, line.substring(++idx), reader.getLineNumber()));
            } else {
                numErrors++;
                Messages.INVALID_COMMAND_SYNTAX.error(this, line, reader.getLineNumber());
            }
        }
        return numErrors;
    } finally {
        reader.close();
    }
}

---

From source file:org.codehaus.groovy.grails.web.errors.GrailsWrappedRuntimeException.java

/**
 * @param servletContext The ServletContext instance
 * @param t The exception that was thrown
 *//*from   www  . j  ava2 s. c  o m*/
public GrailsWrappedRuntimeException(ServletContext servletContext, Throwable t) {
    super(t.getMessage(), t);
    cause = t;
    FastStringPrintWriter pw = FastStringPrintWriter.newInstance();
    cause.printStackTrace(pw);
    stackTrace = pw.toString();

    while (cause.getCause() != cause) {
        if (cause.getCause() == null) {
            break;
        }
        cause = cause.getCause();
    }

    stackTraceLines = stackTrace.split("\\n");

    if (cause instanceof MultipleCompilationErrorsException) {
        MultipleCompilationErrorsException mcee = (MultipleCompilationErrorsException) cause;
        Object message = mcee.getErrorCollector().getErrors().iterator().next();
        if (message instanceof SyntaxErrorMessage) {
            SyntaxErrorMessage sem = (SyntaxErrorMessage) message;
            lineNumber = sem.getCause().getLine();
            className = sem.getCause().getSourceLocator();
            sem.write(pw);
        }
    } else {
        Matcher m1 = PARSE_DETAILS_STEP1.matcher(stackTrace);
        Matcher m2 = PARSE_DETAILS_STEP2.matcher(stackTrace);
        Matcher gsp = PARSE_GSP_DETAILS_STEP1.matcher(stackTrace);
        try {
            if (gsp.find()) {
                className = gsp.group(2);
                lineNumber = Integer.parseInt(gsp.group(3));
                gspFile = URL_PREFIX + "views/" + gsp.group(1) + '/' + className;
            } else {
                if (m1.find()) {
                    do {
                        className = m1.group(1);
                        lineNumber = Integer.parseInt(m1.group(2));
                    } while (m1.find());
                } else {
                    while (m2.find()) {
                        className = m2.group(1);
                        lineNumber = Integer.parseInt(m2.group(2));
                    }
                }
            }
        } catch (NumberFormatException nfex) {
            // ignore
        }
    }

    LineNumberReader reader = null;
    try {
        checkIfSourceCodeAware(t);
        checkIfSourceCodeAware(cause);

        if (getLineNumber() > -1) {
            String fileLocation;
            String url = null;

            if (fileName != null) {
                fileLocation = fileName;
            } else {
                String urlPrefix = "";
                if (gspFile == null) {
                    fileName = className.replace('.', '/') + ".groovy";

                    GrailsApplication application = WebApplicationContextUtils
                            .getRequiredWebApplicationContext(servletContext)
                            .getBean(GrailsApplication.APPLICATION_ID, GrailsApplication.class);
                    // @todo Refactor this to get the urlPrefix from the ArtefactHandler
                    if (application.isArtefactOfType(ControllerArtefactHandler.TYPE, className)) {
                        urlPrefix += "/controllers/";
                    } else if (application.isArtefactOfType(TagLibArtefactHandler.TYPE, className)) {
                        urlPrefix += "/taglib/";
                    } else if (application.isArtefactOfType(ServiceArtefactHandler.TYPE, className)) {
                        urlPrefix += "/services/";
                    }
                    url = URL_PREFIX + urlPrefix + fileName;
                } else {
                    url = gspFile;
                    GrailsApplicationAttributes attrs = new DefaultGrailsApplicationAttributes(servletContext);
                    GroovyPagesTemplateEngine engine = attrs.getPagesTemplateEngine();
                    int[] lineNumbers = engine.calculateLineNumbersForPage(servletContext, url);
                    if (lineNumber < lineNumbers.length) {
                        lineNumber = lineNumbers[lineNumber - 1];
                    }
                }
                fileLocation = "grails-app" + urlPrefix + fileName;
            }

            InputStream in = null;
            if (!StringUtils.isBlank(url)) {
                in = servletContext.getResourceAsStream(url);
                LOG.debug("Attempting to display code snippet found in url " + url);
            }
            if (in == null) {
                Resource r = null;
                try {
                    r = resolver.getResource(fileLocation);
                    in = r.getInputStream();
                } catch (Throwable e) {
                    r = resolver.getResource("file:" + fileLocation);
                    if (r.exists()) {
                        try {
                            in = r.getInputStream();
                        } catch (IOException e1) {
                            // ignore
                        }
                    }
                }
            }

            if (in != null) {
                reader = new LineNumberReader(new InputStreamReader(in));
                String currentLine = reader.readLine();
                StringBuilder buf = new StringBuilder();
                while (currentLine != null) {
                    int currentLineNumber = reader.getLineNumber();
                    if ((lineNumber > 0 && currentLineNumber == lineNumber - 1)
                            || (currentLineNumber == lineNumber)) {
                        buf.append(currentLineNumber).append(": ").append(currentLine).append("\n");
                    } else if (currentLineNumber == lineNumber + 1) {
                        buf.append(currentLineNumber).append(": ").append(currentLine);
                        break;
                    }
                    currentLine = reader.readLine();
                }
                codeSnippet = buf.toString().split("\n");
            }
        }
    } catch (IOException e) {
        LOG.warn("[GrailsWrappedRuntimeException] I/O error reading line diagnostics: " + e.getMessage(), e);
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }
}

---

From source file:com.puppycrawl.tools.checkstyle.checks.javadoc.WriteTagCheckTest.java

@Override
protected void verify(Checker checker, File[] processedFiles, String messageFileName, String... expected)
        throws Exception {
    stream.flush();//  w  ww  . ja  va 2 s.c  om
    final List<File> theFiles = Lists.newArrayList();
    Collections.addAll(theFiles, processedFiles);
    final int errs = checker.process(theFiles);

    // process each of the lines
    final ByteArrayInputStream localStream = new ByteArrayInputStream(stream.toByteArray());
    try (final LineNumberReader lnr = new LineNumberReader(
            new InputStreamReader(localStream, StandardCharsets.UTF_8))) {

        for (int i = 0; i < expected.length; i++) {
            final String expectedResult = messageFileName + ":" + expected[i];
            final String actual = lnr.readLine();
            assertEquals("error message " + i, expectedResult, actual);
        }

        assertTrue("unexpected output: " + lnr.readLine(), expected.length >= errs);
    }
    checker.destroy();
}

---

From source file:net.pms.dlna.RootFolder.java

private void addWebFolder(File webConf) {
    if (webConf.exists()) {
        try {/*from  www .java2  s .  c  om*/
            LineNumberReader br = new LineNumberReader(
                    new InputStreamReader(new FileInputStream(webConf), "UTF-8"));
            String line;
            while ((line = br.readLine()) != null) {
                line = line.trim();

                if (line.length() > 0 && !line.startsWith("#") && line.indexOf("=") > -1) {
                    String key = line.substring(0, line.indexOf("="));
                    String value = line.substring(line.indexOf("=") + 1);
                    String[] keys = parseFeedKey(key);

                    try {
                        if (keys[0].equals("imagefeed") || keys[0].equals("audiofeed")
                                || keys[0].equals("videofeed") || keys[0].equals("audiostream")
                                || keys[0].equals("videostream")) {
                            String[] values = parseFeedValue(value);
                            DLNAResource parent = null;

                            if (keys[1] != null) {
                                StringTokenizer st = new StringTokenizer(keys[1], ",");
                                DLNAResource currentRoot = this;

                                while (st.hasMoreTokens()) {
                                    String folder = st.nextToken();
                                    parent = currentRoot.searchByName(folder);

                                    if (parent == null) {
                                        parent = new VirtualFolder(folder, "");
                                        currentRoot.addChild(parent);
                                    }

                                    currentRoot = parent;
                                }
                            }

                            if (parent == null) {
                                parent = this;
                            }

                            if (keys[0].equals("imagefeed")) {
                                parent.addChild(new ImagesFeed(values[0]));
                            } else if (keys[0].equals("videofeed")) {
                                parent.addChild(new VideosFeed(values[0]));
                            } else if (keys[0].equals("audiofeed")) {
                                parent.addChild(new AudiosFeed(values[0]));
                            } else if (keys[0].equals("audiostream")) {
                                parent.addChild(new WebAudioStream(values[0], values[1], values[2]));
                            } else if (keys[0].equals("videostream")) {
                                parent.addChild(new WebVideoStream(values[0], values[1], values[2]));
                            }
                        }
                    } catch (ArrayIndexOutOfBoundsException e) {
                        // catch exception here and go with parsing
                        logger.info("Error at line " + br.getLineNumber() + " of WEB.conf: " + e.getMessage());
                        logger.debug(null, e);
                    }
                }
            }

            br.close();
        } catch (IOException e) {
            logger.info("Unexpected error in WEB.conf" + e.getMessage());
            logger.debug(null, e);
        }
    }
}

---

From source file:org.diffkit.diff.sns.DKFileSource.java

private void open() throws IOException {
    if (_isOpen)//w ww .  j a v a 2s  .c o m
        return;
    _isOpen = true;
    this.validateFile();
    _lineReader = new LineNumberReader(new BufferedReader(new FileReader(_file)));
    this.readHeader();
}

---

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