Example usage for java.io FileNotFoundException printStackTrace

Introduction

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

Prototype

public void printStackTrace(PrintStream s)

Source Link

Document

Prints this throwable and its backtrace to the specified print stream.

Usage

From source file:net.schweerelos.parrot.CombinedParrotApp.java

/**
 * @param args//  ww  w . j  a  v a  2s  . c om
 */
@SuppressWarnings("static-access")
public static void main(String[] args) {
    CommandLineParser parser = new PosixParser();
    // create the Options
    Options options = new Options();
    options.addOption(OptionBuilder.withLongOpt("help")
            .withDescription("Shows usage information and quits the program").create("h"));

    options.addOption(
            OptionBuilder.withLongOpt("datafile").withDescription("The file with instances to use (required)")
                    .hasArg().withArgName("file").isRequired().create("f"));

    options.addOption(OptionBuilder.withLongOpt("properties")
            .withDescription("Properties file to use. Default: " + System.getProperty("user.home")
                    + File.separator + ".digital-parrot" + File.separator + "parrot.properties")
            .hasArg().withArgName("prop").create("p"));
    try {
        // parse the command line arguments
        CommandLine line = parser.parse(options, args);

        if (line.hasOption("h")) {
            // this is only executed when all required options are present _and_ the help option is specified!
            printHelp(options);
            return;
        }

        String datafile = line.getOptionValue("f");
        if (!datafile.startsWith("file:") || !datafile.startsWith("http:")) {
            datafile = "file:" + datafile;
        }

        String propertiesPath = System.getProperty("user.home") + File.separator + ".digital-parrot"
                + File.separator + "parrot.properties";
        if (line.hasOption("p")) {
            propertiesPath = line.getOptionValue("p");
        }
        final Properties properties = new Properties();
        File propertiesFile = new File(propertiesPath);
        if (propertiesFile.exists() && propertiesFile.canRead()) {
            try {
                properties.load(new FileReader(propertiesFile));
            } catch (FileNotFoundException e) {
                e.printStackTrace(System.err);
                System.exit(1);
            } catch (IOException e) {
                e.printStackTrace(System.err);
                System.exit(1);
            }
        }

        final String url = datafile; // we need a "final" var for the anonymous class
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                CombinedParrotApp inst = null;
                try {
                    inst = new CombinedParrotApp(properties);
                    inst.loadModel(url);
                } catch (Exception e) {
                    JOptionPane.showMessageDialog(null,
                            "There has been an error while starting the program.\nThe program will exit now.",
                            APP_TITLE + "  Error", JOptionPane.ERROR_MESSAGE);
                    e.printStackTrace(System.err);
                    System.exit(1);
                }
                if (inst != null) {
                    inst.setLocationRelativeTo(null);
                    inst.setVisible(true);
                }
            }
        });
    } catch (ParseException exp) {
        printHelp(options);
    }
}

From source file:com.iflytek.spider.util.DomUtil.java

/**
 * Returns parsed dom tree or null if any error
 * //ww  w .j  av  a 2 s . c om
 * @param is
 * @return A parsed DOM tree from the given {@link InputStream}.
 */
public static Element getDom(InputStream is) {

    Element element = null;

    DOMParser parser = new DOMParser();

    InputSource input;
    try {
        input = new InputSource(is);
        input.setEncoding("UTF-8");
        parser.parse(input);
        int i = 0;
        while (!(parser.getDocument().getChildNodes().item(i) instanceof Element)) {
            i++;
        }
        element = (Element) parser.getDocument().getChildNodes().item(i);
    } catch (FileNotFoundException e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (SAXException e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (IOException e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
    }
    return element;
}