Example usage for java.io PrintWriter PrintWriter

List of usage examples for java.io PrintWriter PrintWriter

  1. HOME
  2. Java
  3. java
  4. java.io.*
  5. PrintWriter
  6. 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:Main.java

public static void writeToFile(Document doc, String file) throws Exception {
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    DOMSource source = new DOMSource(doc);
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
    StreamResult result = new StreamResult(pw);
    transformer.transform(source, result);
}

From source file:edu.cornell.med.icb.goby.reads.ColorSpaceConverter.java

public static void main(final String[] args) throws JSAPException, IOException {
    final JSAP jsap = new JSAP();

    final FlaggedOption sequenceOption = new FlaggedOption("input");
    sequenceOption.setRequired(true);//from  w ww .  j a va  2  s .  c  o m
    sequenceOption.setLongFlag("input");
    sequenceOption.setShortFlag('i');
    sequenceOption.setStringParser(FileStringParser.getParser().setMustBeFile(true).setMustExist(true));
    sequenceOption.setHelp("The input file (in Fasta format) to convert");
    jsap.registerParameter(sequenceOption);

    final FlaggedOption outputOption = new FlaggedOption("output");
    outputOption.setRequired(false);
    outputOption.setLongFlag("output");
    outputOption.setShortFlag('o');
    outputOption.setStringParser(FileStringParser.getParser().setMustBeFile(true));
    outputOption.setHelp("The output file to write to (default = stdout)");
    jsap.registerParameter(outputOption);

    final FlaggedOption titleOption = new FlaggedOption("title");
    titleOption.setRequired(false);
    titleOption.setLongFlag("title");
    titleOption.setShortFlag('t');
    titleOption.setHelp("Title for this conversion");
    jsap.registerParameter(titleOption);

    final Switch verboseOption = new Switch("verbose");
    verboseOption.setLongFlag("verbose");
    verboseOption.setShortFlag('v');
    verboseOption.setHelp("Verbose output");
    jsap.registerParameter(verboseOption);

    final Switch helpOption = new Switch("help");
    helpOption.setLongFlag("help");
    helpOption.setShortFlag('h');
    helpOption.setHelp("Print this message");
    jsap.registerParameter(helpOption);

    jsap.setUsage("Usage: " + ColorSpaceConverter.class.getName() + " " + jsap.getUsage());

    final JSAPResult result = jsap.parse(args);

    if (result.getBoolean("help")) {
        System.out.println(jsap.getHelp());
        System.exit(0);
    }

    if (!result.success()) {
        final Iterator<String> errors = result.getErrorMessageIterator();
        while (errors.hasNext()) {
            System.err.println(errors.next());
        }
        System.err.println(jsap.getUsage());
        System.exit(1);
    }

    final boolean verbose = result.getBoolean("verbose");

    final File sequenceFile = result.getFile("input");
    if (verbose) {
        System.out.println("Reading sequence from: " + sequenceFile);
    }

    // extract the title to use for the output header
    final String title;
    if (result.contains("title")) {
        title = result.getString("title");
    } else {
        title = sequenceFile.getName();
    }

    Reader inputReader = null;
    PrintWriter outputWriter = null;

    try {
        if ("gz".equals(FilenameUtils.getExtension(sequenceFile.getName()))) {
            inputReader = new InputStreamReader(new GZIPInputStream(FileUtils.openInputStream(sequenceFile)));
        } else {
            inputReader = new FileReader(sequenceFile);
        }
        final FastaParser fastaParser = new FastaParser(inputReader);

        final File outputFile = result.getFile("output");
        final OutputStream outputStream;
        if (outputFile != null) {
            outputStream = FileUtils.openOutputStream(outputFile);
            if (verbose) {
                System.out.println("Writing sequence : " + outputFile);
            }
        } else {
            outputStream = System.out;
        }
        outputWriter = new PrintWriter(outputStream);

        // write the header portion of the output
        outputWriter.print("# ");
        outputWriter.print(new Date());
        outputWriter.print(' ');
        outputWriter.print(ColorSpaceConverter.class.getName());
        for (final String arg : args) {
            outputWriter.print(' ');
            outputWriter.print(arg);
        }
        outputWriter.println();
        outputWriter.print("# Cwd: ");
        outputWriter.println(new File(".").getCanonicalPath());
        outputWriter.print("# Title: ");
        outputWriter.println(title);

        // now parse the input sequence
        long sequenceCount = 0;
        final MutableString descriptionLine = new MutableString();
        final MutableString sequence = new MutableString();
        final MutableString colorSpaceSequence = new MutableString();

        while (fastaParser.hasNext()) {
            fastaParser.next(descriptionLine, sequence);
            outputWriter.print('>');
            outputWriter.println(descriptionLine);

            convert(sequence, colorSpaceSequence);
            CompactToFastaMode.writeSequence(outputWriter, colorSpaceSequence);

            sequenceCount++;
            if (verbose && sequenceCount % 10000 == 0) {
                System.out.println("Converted " + sequenceCount + " entries");
            }
        }

        if (verbose) {
            System.out.println("Conversion complete!");
        }
    } finally {
        IOUtils.closeQuietly(inputReader);
        IOUtils.closeQuietly(outputWriter);
    }
}

From source file:Main.java

private static String createPKCS11ConfigFile(String pkcs11LibPath) {
    File f = null;// w  w  w. j a v  a 2  s  . c o  m
    PrintWriter writer = null;
    try {
        f = File.createTempFile("pkcs11", ".cfg");
        f.deleteOnExit();
        writer = new PrintWriter(new FileOutputStream(f));
        writer.println("name = verinice");
        writer.println("description = verinice PKCS#11 configuration");
        writer.println("library = " + pkcs11LibPath);
        writer.close();
    } catch (IOException e) {
        return null;
    } finally {
        if (writer != null)
            writer.close();
    }

    return f.getAbsolutePath();
}

From source file:Main.java

/**
 * Saves an index (Hashtable) to a file.
 * //from  ww  w.j  a v a 2s . co  m
 * @param root_
 *            The file where the index is stored in.
 * @param index
 *            The indextable.
 * @exception IOException
 *                If an internal error prevents the file from being written.
 */
public static void saveIndex(File root_, String name, Hashtable index) throws IOException {
    File indexfile = new File(root_, name);
    PrintWriter out = new PrintWriter(new FileWriter(indexfile));
    Enumeration keys = index.keys();
    String key = null;
    while (keys.hasMoreElements()) {
        key = (String) keys.nextElement();
        out.println(key);
        out.println((Long) index.get(key));
    }
    out.close();
}

From source file:Main.java

/**
 *  This method is used to send a XML request file to web server to process the request and return
 *  xml response containing event id./*w  ww. j a v  a 2s.c o m*/
 */
public static String postXMLWithTimeout(String postUrl, String xml, int readTimeout) throws Exception {

    System.out.println("XMLUtils.postXMLWithTimeout: Connecting to Web Server .......");

    InputStream in = null;
    BufferedReader bufferedReader = null;
    OutputStream out = null;
    PrintWriter printWriter = null;
    StringBuffer responseMessageBuffer = new StringBuffer("");

    try {
        URL url = new URL(postUrl);
        URLConnection con = url.openConnection();

        // Prepare for both input and output
        con.setDoInput(true);
        con.setDoOutput(true);

        // Turn off caching
        con.setUseCaches(false);
        con.setRequestProperty("Content-Type", "text/xml");
        con.setReadTimeout(readTimeout);
        out = con.getOutputStream();
        // Write the arguments as post data
        printWriter = new PrintWriter(out);

        printWriter.println(xml);
        printWriter.flush();

        //Process response and return back to caller function
        in = con.getInputStream();
        bufferedReader = new BufferedReader(new InputStreamReader(in));
        String tempStr = null;

        int tempClearResponseMessageBufferCounter = 0;
        while ((tempStr = bufferedReader.readLine()) != null) {
            tempClearResponseMessageBufferCounter++;
            //clear the buffer for the first time
            if (tempClearResponseMessageBufferCounter == 1)
                responseMessageBuffer.setLength(0);
            responseMessageBuffer.append(tempStr);
        }

    } catch (Exception ex) {
        throw ex;
    } finally {
        System.out.println("Calling finally in POSTXML");
        try {
            if (in != null)
                in.close();
        } catch (Exception eex) {
            System.out.println("COULD NOT Close Input Stream in try");
        }
        try {
            if (out != null)
                out.close();
        } catch (Exception eex) {
            System.out.println("COULD NOT Close Output Stream in try");
        }

    }
    System.out.println("XMLUtils.postXMLWithTimeout: end .......");
    return responseMessageBuffer.toString();
}

From source file:fr.inria.atlanmod.instantiator.neoEMF.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  w ww  .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)));

        GenericMetamodelConfig config = new GenericMetamodelConfig(metamodelResource, range, seed);
        GenericMetamodelGenerator modelGen = new GenericMetamodelGenerator(config);

        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(VALUES_SIZE)) {
            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)));

        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 (ClassNotFoundException t) {
        System.err.println("ERROR: Unable to load class" + t.getLocalizedMessage());
        StringWriter stringWriter = new StringWriter();
        t.printStackTrace(new PrintWriter(stringWriter));
        System.err.println(stringWriter.toString());
    } 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);
    }
}

From source file:com.github.triceo.robozonky.notifications.email.AbstractEmailingListener.java

protected static String stackTraceToString(final Throwable t) {
    final StringWriter sw = new StringWriter();
    final PrintWriter pw = new PrintWriter(sw);
    t.printStackTrace(pw);/*www .ja  va  2  s  .  c  o  m*/
    return sw.toString();
}

From source file:Utilities.java

/**
 * Return the stack trace from the passed exception as a string
 *
 * @param  th  The exception to retrieve stack trace for.
 *//*from www  .j  ava  2s .com*/
public static String getStackTrace(Throwable th) {
    if (th == null) {
        throw new IllegalArgumentException("Throwable == null");
    }

    StringWriter sw = new StringWriter();
    try {
        PrintWriter pw = new PrintWriter(sw);
        try {
            th.printStackTrace(pw);
            return sw.toString();
        } finally {
            pw.close();
        }
    } finally {
        try {
            sw.close();
        } catch (IOException ex) {

        }
    }
}

From source file:Main.java

public static String toString(Node element) throws Exception {
    if (element == null) {
        return "null";
    }//  www  .  j  av  a2s.co m
    Source source = new DOMSource(element);

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

        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.transform(source, result);
    }
    return stringWriter.toString();
}

From source file:io.uengine.util.StringUtils.java

/**
 * Properties? key value ? ./*  w  w w . j  a va2s  .  c o m*/
 *
 * @param properties Properties
 * @return key value ?
 */
public static String propertiesToString(Properties properties) {
    StringWriter writer = new StringWriter();
    PrintWriter out = new PrintWriter(writer);
    Set<Object> keys = properties.keySet();
    for (Object key : keys) {
        out.println(key + "=" + properties.get(key));
    }
    return writer.getBuffer().toString();
}