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:pl.otros.logview.importer.UtilLoggingXmlLogImporter.java

@Override
public void importLogs(InputStream in, LogDataCollector collector, ParsingContext parsingContext) {

    StringBuffer sb = new StringBuffer();
    try {//from   w ww .ja  va 2 s  .c om
        LineNumberReader bin = new LineNumberReader(new InputStreamReader(in, ENCODING));
        String line = null;

        while ((line = bin.readLine()) != null) {
            sb.append(line).append("\n");
            if (bin.getLineNumber() % 30 == 0) {
                decodeEvents(sb.toString(), collector, parsingContext);
                sb.setLength(0);
            }
        }

    } catch (UnsupportedEncodingException e) {
        LOGGER.severe("Cant load codepage " + e.getMessage());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } finally {
        decodeEvents(sb.toString(), collector, parsingContext);
    }

}

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From source file:org.apache.streams.rss.test.RssStreamProviderIT.java

@Test
public void testRssStreamProvider() throws Exception {

    final String configfile = "./target/test-classes/RssStreamProviderIT.conf";
    final String outfile = "./target/test-classes/RssStreamProviderIT.stdout.txt";

    InputStream is = RssStreamProviderIT.class.getResourceAsStream("/top100.txt");
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    RssStreamConfiguration configuration = new RssStreamConfiguration();
    List<FeedDetails> feedArray = new ArrayList<>();
    try {// w ww.  j  a v a  2s . c  o  m
        while (br.ready()) {
            String line = br.readLine();
            if (!StringUtils.isEmpty(line)) {
                feedArray.add(new FeedDetails().withUrl(line).withPollIntervalMillis(5000L));
            }
        }
        configuration.setFeeds(feedArray);
    } catch (Exception ex) {
        ex.printStackTrace();
        Assert.fail();
    }

    org.junit.Assert.assertThat(configuration.getFeeds().size(), greaterThan(70));

    OutputStream os = new FileOutputStream(configfile);
    OutputStreamWriter osw = new OutputStreamWriter(os);
    BufferedWriter bw = new BufferedWriter(osw);

    // write conf
    ObjectNode feedsNode = mapper.convertValue(configuration, ObjectNode.class);
    JsonNode configNode = mapper.createObjectNode().set("rss", feedsNode);

    bw.write(mapper.writeValueAsString(configNode));
    bw.flush();
    bw.close();

    File config = new File(configfile);
    assert (config.exists());
    assert (config.canRead());
    assert (config.isFile());

    RssStreamProvider.main(new String[] { configfile, outfile });

    File out = new File(outfile);
    assert (out.exists());
    assert (out.canRead());
    assert (out.isFile());

    FileReader outReader = new FileReader(out);
    LineNumberReader outCounter = new LineNumberReader(outReader);

    while (outCounter.readLine() != null) {
    }

    assert (outCounter.getLineNumber() >= 200);

}

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From source file:de.griffel.confluence.plugins.plantuml.type.UmlSourceBuilder.java

public UmlSourceBuilder append(StringReader stringReader) throws IOException {
    final LineNumberReader reader = new LineNumberReader(stringReader);
    String line = reader.readLine();
    if ("ditaa".equals(line) && DiagramType.UML == diagramType) {
        isDitaa = true;/*w  w  w.  ja  va2 s .com*/
    }
    while (line != null) {
        appendLine(line);
        line = reader.readLine();
    }
    return this;
}

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From source file:org.onecmdb.core.utils.transform.csv.CSVDataSource.java

public synchronized List<String> load() throws IOException {
    if (loaded) {
        return (lines);
    }//  www. ja  v a  2  s.c om

    lines = new ArrayList<String>();
    int lineIndex = 0;
    for (URL url : urls) {
        URL nUrl = url;
        if (rootPath != null) {
            nUrl = new URL(nUrl.getProtocol(), nUrl.getHost(), nUrl.getPort(), rootPath + "/" + nUrl.getFile());
        }
        InputStream in = nUrl.openStream();
        try {
            LineNumberReader lin = new LineNumberReader(new InputStreamReader(in));
            boolean eof = false;
            while (!eof) {

                String line = lin.readLine();
                if (line == null) {
                    eof = true;
                    continue;
                }
                // Check if line is not terminated due to nl in fields.
                line = handleEndOfLine(lin, line);
                lineIndex++;
                if (lineIndex < headerLines) {
                    log.debug("Add Header:" + line);
                    headers.add(line);
                    continue;
                }
                log.debug("Add Line:[" + lineIndex + "]" + line);
                lines.add(line);
            }
        } catch (IOException de) {
            IOException e = new IOException("Parse error in <" + url.toExternalForm() + ">, ");
            e.initCause(de);
            throw e;
        } finally {
            if (in != null) {
                in.close();
            }
        }
    }
    loaded = true;

    String header = getHeaderData();
    if (headers != null) {
        String headers[] = header.split(getColDelimiter());
        for (int i = 0; i < headers.length; i++) {
            headerMap.put(headers[i], i);
        }
    }
    return (lines);
}

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From source file:org.chenillekit.demo.components.LeftSideMenu.java

/**
 * build the menu item list.//w w  w  . j av  a  2s  .c  o  m
 *
 * @return list of menu items
 */
private List<MenuConfiguration> buildMenuItemList() {
    List<MenuConfiguration> menuEntryList = CollectionFactory.newList();
    LineNumberReader lineNumberReader = null;

    try {
        lineNumberReader = new LineNumberReader(new FileReader(new File(configFile.toURL().toURI())));

        String readedLine;
        while ((readedLine = lineNumberReader.readLine()) != null) {
            String[] values = StringUtils.split(readedLine, '|');
            if (!values[0].equalsIgnoreCase("separator")) {
                Object[] contextParameters = null;
                if (values.length == 4 && parameters != null) {
                    String[] placeHolders = values[3].split(",");
                    contextParameters = new Object[placeHolders.length];
                    for (int i = 0; i < placeHolders.length; i++) {
                        String placeHolder = placeHolders[i];
                        contextParameters[i] = parameters.get(placeHolder);
                    }
                }

                menuEntryList.add(new MenuConfiguration(values[0].trim(), values[1].trim(), values[2].trim(),
                        contextParameters));
            } else
                menuEntryList.add(new MenuConfiguration());
        }

        return menuEntryList;
    } catch (FileNotFoundException e) {
        throw new RuntimeException(e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    } catch (URISyntaxException e) {
        throw new RuntimeException(e);
    } finally {
        try {
            if (lineNumberReader != null)
                lineNumberReader.close();
        } catch (IOException e) {
        }
    }
}

---

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

/**
 * imports all ts from given blockfile/*from  ww w.ja va  2s  . com*/
 */
public void importBlockFile(final File blockFile) {
    LineNumberReader reader = null;
    try {
        reader = new LineNumberReader(new FileReader(blockFile));

        final BlockTimeStep timeStep = searchTimeoffset(reader);

        while (reader.ready()) {
            final Entry<String, Integer> blockInfo = searchBlockHeader(reader);
            if (blockInfo == null)
                break;

            final String key = blockInfo.getKey();
            final int valuesCount = blockInfo.getValue();

            // Add values to existing block
            final Block block = getOrCreateBlock(key, timeStep);
            block.readValues(reader, valuesCount);
        }
        reader.close();
    } catch (final Exception e) {
        e.printStackTrace();
        System.out.println("could not read blockfile "); //$NON-NLS-1$
    } finally {
        IOUtils.closeQuietly(reader);
    }
}

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From source file:edu.umn.msi.tropix.common.io.IOUtilsTest.java

@Test(groups = "unit", expectedExceptions = IORuntimeException.class)
public void lineReaderException() {
    final LineNumberReader reader = new LineNumberReader(new ClosedReader());
    ioUtils.readLine(reader);//  www  . j  a  va  2  s .c  o  m
}

---

From source file:org.gsoft.admin.ScriptRunner.java

/**
 * Runs an SQL script (read in using the Reader parameter) using the
 * connection passed in//from   w  w  w  . j  av a  2  s .c  o m
 * 
 * @param conn
 *            - the connection to use for the script
 * @param reader
 *            - the source of the script
 * @throws SQLException
 *             if any SQL errors occur
 * @throws IOException
 *             if there is an error reading from the Reader
 */
private void runScript(Connection conn, Reader reader) throws IOException, SQLException {
    StringBuffer command = null;
    try {
        LineNumberReader lineReader = new LineNumberReader(reader);
        String line = null;
        while ((line = lineReader.readLine()) != null) {
            if (command == null) {
                command = new StringBuffer();
            }
            String trimmedLine = line.trim();
            if (trimmedLine.startsWith("--")) {
                println(trimmedLine);
            } else if (trimmedLine.length() < 1 || trimmedLine.startsWith("//")) {
                // Do nothing
            } else if (trimmedLine.length() < 1 || trimmedLine.startsWith("--")) {
                // Do nothing
            } else if (!fullLineDelimiter && trimmedLine.endsWith(getDelimiter())
                    || fullLineDelimiter && trimmedLine.equals(getDelimiter())) {
                command.append(line.substring(0, line.lastIndexOf(getDelimiter())));
                command.append(" ");
                Statement statement = conn.createStatement();

                println(command);

                boolean hasResults = false;
                if (stopOnError) {
                    hasResults = statement.execute(command.toString());
                } else {
                    try {
                        statement.execute(command.toString());
                    } catch (SQLException e) {
                        e.fillInStackTrace();
                        printlnError("Error executing: " + command);
                        printlnError(e);
                    }
                }

                if (autoCommit && !conn.getAutoCommit()) {
                    conn.commit();
                }

                ResultSet rs = statement.getResultSet();
                if (hasResults && rs != null) {
                    ResultSetMetaData md = rs.getMetaData();
                    int cols = md.getColumnCount();
                    for (int i = 0; i < cols; i++) {
                        String name = md.getColumnLabel(i);
                        print(name + "\t");
                    }
                    println("");
                    while (rs.next()) {
                        for (int i = 0; i < cols; i++) {
                            String value = rs.getString(i);
                            print(value + "\t");
                        }
                        println("");
                    }
                }

                command = null;
                try {
                    statement.close();
                } catch (Exception e) {
                    // Ignore to workaround a bug in Jakarta DBCP
                }
                Thread.yield();
            } else {
                command.append(line);
                command.append(" ");
            }
        }
        if (!autoCommit) {
            conn.commit();
        }
    } catch (SQLException e) {
        e.fillInStackTrace();
        printlnError("Error executing: " + command);
        printlnError(e);
        throw e;
    } catch (IOException e) {
        e.fillInStackTrace();
        printlnError("Error executing: " + command);
        printlnError(e);
        throw e;
    } finally {
        conn.rollback();
        flush();
    }
}

---

From source file:com.fortmoon.utils.CSVDBLoader.java

public void load() throws InterruptedException {
    file = new File(fileName);
    tableName = fileName.substring(0, fileName.indexOf('.'));
    String line = null;/*from w  w w . ja  va  2s. c om*/
    String statement = null;
    int counter = 0;
    try {
        reader = new FileReader(file);
        lr = new LineNumberReader(reader);
        line = lr.readLine();
        if (line != null)
            getColumns(line); //Now we read the header, mark the file position for future resets
        //lr.mark(999999);
        getColumnClasses();
        getInsertPreamble();
        createTable();
        resetReader();

        Runnable r = new Runnable() {
            @Override
            public void run() {
                executeBatch();
            }
        };
        Thread t = new Thread(r, "BatchRunner");
        t.start();
        ArrayList<String> statements = new ArrayList<String>(batchSize);
        line = lr.readLine();
        while (line != null) {
            counter++;
            statement = getStatement(line, counter);
            //this.statements.add(statement);
            statements.add(statement);
            // update every 1000 records
            if (counter % batchSize == 0) {
                log.info("Executing batch for line " + counter + " of " + this.numLines);
                //executeBatch();
                queue.put(statements);
                statements = new ArrayList<String>(batchSize);
                /*               try {
                                  Thread.sleep(100);
                               }
                               catch(InterruptedException ie ) {}
                */ }
            line = lr.readLine();
        }
        // get the last ones
        log.info("Executing final batch");
        queue.put(statements);
        //executeBatch();

    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } finally {
        try {
            reader.close();
        } catch (IOException e) {
            log.error("Non-Fatal Exception closing FileReader: " + e.getMessage(), e);
        }
    }
}

---

From source file:eu.eexcess.diversityasurement.wikipedia.RDFCategoryExtractor.java

private long getTotalNumberOfLines(File file) throws FileNotFoundException, IOException {
    long lines = 0;
    LineNumberReader lineNumberReader = new LineNumberReader(new FileReader(file));
    lineNumberReader.skip(Long.MAX_VALUE);
    lines = lineNumberReader.getLineNumber();
    lineNumberReader.close();//w  w w. ja va  2s . c om
    return lines;
}

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