Example usage for java.io PrintWriter PrintWriter

Introduction

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

Prototype

public PrintWriter(File file) throws FileNotFoundException 

Source Link

Document

Creates a new PrintWriter, without automatic line flushing, with the specified file.

Usage

From source file:de.tudarmstadt.ukp.dkpro.c4corpus.hadoop.statistics.StatisticsTableCreator.java

public static void saveTableToCsv(Table<String, String, Long> table, OutputStream outputStream) {
    PrintWriter pw = new PrintWriter(outputStream);
    pw.write(";");
    for (String columnKey : table.columnKeySet()) {
        pw.printf("%s;", columnKey);
    }//from w  ww.jav  a  2s. co  m
    pw.println();

    for (String rowKey : table.rowKeySet()) {
        pw.printf("%s;", rowKey);
        for (String columnKey : table.columnKeySet()) {
            Long value = table.get(rowKey, columnKey);
            pw.printf("%d;", value != null ? value : 0);
        }
        pw.println();
    }

    IOUtils.closeQuietly(pw);
}

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From source file:biz.wolschon.finance.jgnucash.helper.HttpFetcher.java

/**
 * Fetch the given URL with http-basic-auth.
 * @param url the URL/*from   www . j  ava 2 s .  c  om*/
 * @param username username
 * @param password password
 * @return the page-content or null
 */
public static String fetchURL(final URL url, final String username, final String password) {
    StringWriter sw = new StringWriter();

    try {
        PrintWriter pw = new PrintWriter(sw);
        InputStream content = fetchURLStream(url, username, password);
        BufferedReader in = new BufferedReader(new InputStreamReader(content));
        String line;
        while ((line = in.readLine()) != null) {
            pw.println(line);
        }
    } catch (MalformedURLException e) {
        e.printStackTrace();
        LOGGER.error("cannot fetch malformed URL " + url, e);
        return null;
    } catch (IOException e) {
        e.printStackTrace();
        LOGGER.error("cannot fetch URL " + url, e);
        return null;
    }
    return sw.toString();
}

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From source file:fr.inria.atlanmod.dag.instantiator.Launcher.java

public static void main(String[] args) throws GenerationException, IOException {

    ResourceSetImpl resourceSet = new ResourceSetImpl();
    { // initializing the registry

        resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap().put(EcorePackage.eNS_PREFIX,
                new EcoreResourceFactoryImpl());
        resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap()
                .put(Resource.Factory.Registry.DEFAULT_EXTENSION, new XMIResourceFactoryImpl());
        resourceSet.getResourceFactoryRegistry().getProtocolToFactoryMap().put(NeoEMFURI.NEOEMF_HBASE_SCHEME,
                NeoEMFResourceFactory.eINSTANCE);

    }/*from   ww  w . j a  v a  2 s .  c  o m*/

    Options options = new Options();

    configureOptions(options);

    CommandLineParser parser = new GnuParser();

    try {
        CommandLine commandLine = parser.parse(options, args);

        //         String epackage_class = commandLine.getOptionValue(E_PACKAGE_CLASS);
        //         
        //         LOGGER.info("Start loading the package");
        //         Class<?> inClazz = Launcher.class.getClassLoader().loadClass(epackage_class);
        //         EPackage _package = (EPackage) inClazz.getMethod("init").invoke(null);
        //         
        //         Resource metamodelResource = new XMIResourceImpl(URI.createFileURI("dummy"));
        //          metamodelResource.getContents().add(_package);
        //          LOGGER.info("Finish loading the package");

        int size = Launcher.DEFAULT_AVERAGE_MODEL_SIZE;
        if (commandLine.hasOption(SIZE)) {
            Number number = (Number) commandLine.getParsedOptionValue(SIZE);
            size = (int) Math.min(Integer.MAX_VALUE, number.longValue());
        }

        float variation = Launcher.DEFAULT_DEVIATION;
        if (commandLine.hasOption(VARIATION)) {
            Number number = (Number) commandLine.getParsedOptionValue(VARIATION);
            if (number.floatValue() < 0.0f || number.floatValue() > 1.0f) {
                throw new ParseException(MessageFormat.format("Invalid value for option -{0}: {1}", VARIATION,
                        number.floatValue()));
            }
            variation = number.floatValue();
        }

        float propVariation = Launcher.DEFAULT_DEVIATION;
        if (commandLine.hasOption(PROP_VARIATION)) {
            Number number = (Number) commandLine.getParsedOptionValue(PROP_VARIATION);
            if (number.floatValue() < 0.0f || number.floatValue() > 1.0f) {
                throw new ParseException(MessageFormat.format("Invalid value for option -{0}: {1}",
                        PROP_VARIATION, number.floatValue()));
            }
            propVariation = number.floatValue();
        }

        long seed = System.currentTimeMillis();
        if (commandLine.hasOption(SEED)) {
            seed = ((Number) commandLine.getParsedOptionValue(SEED)).longValue();
        }

        Range<Integer> range = Range.between(Math.round(size * (1 - variation)),
                Math.round(size * (1 + variation)));

        ISpecimenConfiguration config = new DagMetamodelConfig(range, seed);
        IGenerator generator = new DagGenerator(config, config.getSeed());

        GenericMetamodelGenerator modelGen = new GenericMetamodelGenerator(generator);

        if (commandLine.hasOption(OUTPUT_PATH)) {
            String outDir = commandLine.getOptionValue(OUTPUT_PATH);
            //java.net.URI intermediateURI = java.net.URI.create(outDir);
            modelGen.setSamplesPath(outDir);
        }

        int numberOfModels = 1;
        if (commandLine.hasOption(N_MODELS)) {
            numberOfModels = ((Number) commandLine.getParsedOptionValue(N_MODELS)).intValue();
        }

        int valuesSize = GenericMetamodelConfig.DEFAULT_AVERAGE_VALUES_LENGTH;
        if (commandLine.hasOption(VALUES_SIZE)) {
            Number number = (Number) commandLine.getParsedOptionValue(VALUES_SIZE);
            valuesSize = (int) Math.min(Integer.MAX_VALUE, number.longValue());
        }

        int referencesSize = GenericMetamodelConfig.DEFAULT_AVERAGE_REFERENCES_SIZE;
        if (commandLine.hasOption(DEGREE)) {
            Number number = (Number) commandLine.getParsedOptionValue(DEGREE);
            referencesSize = (int) Math.min(Integer.MAX_VALUE, number.longValue());
        }

        config.setValuesRange(Math.round(valuesSize * (1 - propVariation)),
                Math.round(valuesSize * (1 + propVariation)));

        config.setReferencesRange(Math.round(referencesSize * (1 - propVariation)),
                Math.round(referencesSize * (1 + propVariation)));

        config.setPropertiesRange(Math.round(referencesSize * (1 - propVariation)),
                Math.round(referencesSize * (1 + propVariation)));

        long start = System.currentTimeMillis();
        modelGen.runGeneration(resourceSet, numberOfModels, size, variation);
        long end = System.currentTimeMillis();
        LOGGER.info(
                MessageFormat.format("Generation finished after {0} s", Long.toString((end - start) / 1000)));

        //         for (Resource rsc : resourceSet.getResources()) {
        //            if (rsc.getContents().get(0) instanceof DAG) {
        //               
        //            }
        //               
        //         }

        if (commandLine.hasOption(DIAGNOSE)) {
            for (Resource resource : resourceSet.getResources()) {
                LOGGER.info(
                        MessageFormat.format("Requested validation for resource ''{0}''", resource.getURI()));
                BasicDiagnostic diagnosticChain = diagnoseResource(resource);
                if (!isFailed(diagnosticChain)) {
                    LOGGER.info(MessageFormat.format("Result of the diagnosis of resurce ''{0}'' is ''OK''",
                            resource.getURI()));
                } else {
                    LOGGER.severe(MessageFormat.format("Found ''{0}'' error(s) in the resource ''{1}''",
                            diagnosticChain.getChildren().size(), resource.getURI()));
                    for (Diagnostic diagnostic : diagnosticChain.getChildren()) {
                        LOGGER.fine(diagnostic.getMessage());
                    }
                }
            }
            LOGGER.info("Validation finished");
        }

    } catch (ParseException e) {
        System.err.println(e.getLocalizedMessage());
        HelpFormatter formatter = new HelpFormatter();
        formatter.setOptionComparator(new OptionComarator<Option>());
        try {
            formatter.setWidth(Math.max(Terminal.getTerminal().getTerminalWidth(), 80));
        } catch (Throwable t) {
            LOGGER.warning("Unable to get console information");
        }
        ;
        formatter.printHelp("java -jar <this-file.jar>", options, true);
        System.exit(ERROR);
    } catch (Throwable t) {
        System.err.println("ERROR: " + t.getLocalizedMessage());
        StringWriter stringWriter = new StringWriter();
        t.printStackTrace(new PrintWriter(stringWriter));
        System.err.println(t);
        LOGGER.severe(stringWriter.toString());
        System.exit(ERROR);
    }
}

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From source file:de.alpharogroup.exception.ExceptionExtensions.java

/**
 * Gets the stacktrace as string.//ww w . ja v  a  2s  .  c  o m
 *
 * @param throwable
 *            the throwable
 * @return the stacktrace as string.
 */
public static String getStackTrace(final Throwable throwable) {
    if (null == throwable) {
        return null;
    }
    StringWriter sw = null;
    PrintWriter pw = null;
    String stacktrace = null;
    try {
        sw = new StringWriter();
        pw = new PrintWriter(sw);
        throwable.printStackTrace(pw);
        stacktrace = sw.toString();
    } finally {
        StreamExtensions.closeWriter(sw);
        StreamExtensions.closeWriter(pw);
    }
    return stacktrace;
}

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From source file:com.mymita.vaadlets.demo.AddonDemoApplication.java

private static VerticalLayout createStackTraceLabel(final Exception e) {
    final VerticalLayout vl = new VerticalLayout();
    vl.setMargin(true);/*from  www.  j a v  a 2 s. c  o  m*/
    vl.addComponent(new Label("<h1>Error</h1>", Label.CONTENT_XHTML));
    final StringWriter buf = new StringWriter();
    e.printStackTrace(new PrintWriter(buf));
    vl.addComponent(new Label(buf.toString(), Label.CONTENT_PREFORMATTED));
    return vl;
}

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From source file:csiro.pidsvc.helper.Http.java

/**
 * Return specific HTTP response code and add a message to HTTP header.
 * /* w  ww  .j a  v a2s .c  om*/
 * @param response HttpServletResponse object.
 * @param httpResponseCode HTTP response code.
 * @param exception Exception object.
 */
public static void returnErrorCode(HttpServletResponse response, int httpResponseCode, Exception exception) {
    try {
        String message = (exception.getMessage() == null ? "" : exception.getMessage())
                + (exception.getCause() == null ? "" : "\n" + exception.getCause().getMessage());

        StringWriter sw = new StringWriter();
        exception.printStackTrace(new PrintWriter(sw));

        response.addHeader(PID_SERVICE_ERROR_HTTP_HEADER, message);
        response.addHeader(PID_SERVICE_MSG_HTTP_HEADER, sw.toString());
        response.sendError(httpResponseCode, exception.getMessage());
    } catch (IOException e) {
        _logger.debug(e);
    }
}

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From source file:Main.java

public static String toString(Element element) {
    if (element == null)
        return "null";

    Source source = new DOMSource(element);

    StringWriter stringWriter = new StringWriter();
    PrintWriter printWriter = new PrintWriter(stringWriter);
    Result result = new StreamResult(printWriter);

    try {/*from   ww w. ja  v a 2s .co  m*/
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.transform(source, result);
    } catch (Exception e) {
        throw new RuntimeException("couldn't write element '" + element.getTagName() + "' to string", e);
    }

    printWriter.close();

    return stringWriter.toString();
}

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From source file:Main.java

private static void renderErrorMessage(Exception e, Writer out) {
    PrintWriter pw = (out instanceof PrintWriter) ? (PrintWriter) out : new PrintWriter(out);
    pw.print("<u>");
    pw.print(e.getMessage());//from   w  ww  .j av a 2 s  . co m
    pw.print("</u> <pre>");
    e.printStackTrace(pw);
    pw.print("</pre>");
}

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From source file:com.gsinnovations.howdah.CommandLineUtil.java

/**
 * Print the options supported by <code>GenericOptionsParser</code>.
 * In addition to the options supported by the job, passed in as the
 * group parameter.// w  w w. j a  v a  2  s .co m
 *
 * @param group job-specific command-line options.
 */
public static void printHelpWithGenericOptions(Group group) {
    org.apache.commons.cli.Options ops = new org.apache.commons.cli.Options();
    new GenericOptionsParser(new Configuration(), ops, new String[0]);
    org.apache.commons.cli.HelpFormatter fmt = new org.apache.commons.cli.HelpFormatter();
    fmt.printHelp("<command> [Generic Options] [Job-Specific Options]", "Generic Options:", ops, "");

    PrintWriter pw = new PrintWriter(System.out);
    HelpFormatter formatter = new HelpFormatter();
    formatter.setGroup(group);
    formatter.setPrintWriter(pw);
    formatter.printHelp();
    pw.flush();
}

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From source file:com.granita.contacticloudsync.log.ExternalFileLogger.java

public ExternalFileLogger(Context context, String fileName, boolean verbose) throws IOException {
    this.verbose = verbose;

    File dir = getDirectory(context);
    if (dir == null)
        throw new IOException("External media not available for log creation");

    name = StringUtils.remove(StringUtils.remove(fileName, File.pathSeparatorChar), File.separatorChar);

    File log = new File(dir, name);
    writer = new PrintWriter(log);
}

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