Example usage for java.io File exists

List of usage examples for java.io File exists

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Introduction

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

Prototype

public boolean exists()

Source Link

Document

Tests whether the file or directory denoted by this abstract pathname exists.

Usage

From source file:dk.statsbiblioteket.netark.dvenabler.Command.java

@SuppressWarnings("CallToPrintStackTrace")
public static void main(String[] args) throws IOException {
    CommandLine cli;//from  w ww . ja va  2 s . co  m
    try {
        cli = new GnuParser().parse(getOptions(), args);
    } catch (ParseException e) {
        System.err.println("Exception parsing arguments");
        e.printStackTrace();
        usage();
        return;
    }

    if (cli.hasOption(HELP)) {
        usage();
        return;
    }

    if (!cli.hasOption(INPUT)) {
        System.err.println("input index must be specified");
        usage();
        return;
    }

    final File in = new File(cli.getOptionValue(INPUT));
    if (!in.exists() || !in.isDirectory()) {
        System.err.println("Unable to access index folder '" + in + "'");
        usage();
        return;
    }

    final boolean verbose = cli.hasOption(VERBOSE);
    if (cli.hasOption(LIST)) {
        list(in, verbose);
        return;
    }

    if (cli.hasOption(CONVERT)) {
        if (!cli.hasOption(OUTPUT)) {
            System.err.println("convert is specified but output is missing");
            usage();
            return;
        }
        final File out = new File(cli.getOptionValue(OUTPUT));
        if (!cli.hasOption(FIELDS)) {
            System.err.println("convert is specified but no fields are defined.\n"
                    + "Use '.' to signal that no fields should be changed");
            usage();
            return;
        }
        final String[] rawFields = cli.getOptionValues(FIELDS);
        List<DVConfig> dvFields = getTweakedFields(in, rawFields);
        if (dvFields == null) {
            System.err.println("Invalid field specification");
            usage();
            return;
        }
        convert(in, out, dvFields, verbose);
        return;
    }

    System.out.println("Nothing to do");
    usage();
}

From source file:MainClass.java

public static void main(String[] Args) {
    String filepath = "C:/myFile.txt";
    File aFile = new File(filepath);
    FileOutputStream outputFile = null;
    if (aFile.isFile()) {
        File newFile = aFile;
        do {//from   www  .  ja v a2 s  .  c o  m
            String name = newFile.getName();
            int period = name.indexOf('.');
            newFile = new File(newFile.getParent(),
                    name.substring(0, period) + "_old" + name.substring(period));
        } while (newFile.exists());
        aFile.renameTo(newFile);
    }
    try {
        outputFile = new FileOutputStream(aFile);
        System.out.println("myFile.txt output stream created");
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
    }
}

From source file:org.apache.s4.adapter.Adapter.java

public static void main(String args[]) {
    Options options = new Options();

    options.addOption(OptionBuilder.withArgName("corehome").hasArg().withDescription("core home").create("c"));

    options.addOption(/*  www  . j  a  va  2s.c om*/
            OptionBuilder.withArgName("instanceid").hasArg().withDescription("instance id").create("i"));

    options.addOption(
            OptionBuilder.withArgName("configtype").hasArg().withDescription("configuration type").create("t"));

    options.addOption(OptionBuilder.withArgName("userconfig").hasArg()
            .withDescription("user-defined legacy data adapter configuration file").create("d"));

    CommandLineParser parser = new GnuParser();
    CommandLine commandLine = null;

    try {
        commandLine = parser.parse(options, args);
    } catch (ParseException pe) {
        System.err.println(pe.getLocalizedMessage());
        System.exit(1);
    }

    int instanceId = -1;
    if (commandLine.hasOption("i")) {
        String instanceIdStr = commandLine.getOptionValue("i");
        try {
            instanceId = Integer.parseInt(instanceIdStr);
        } catch (NumberFormatException nfe) {
            System.err.println("Bad instance id: %s" + instanceIdStr);
            System.exit(1);
        }
    }

    if (commandLine.hasOption("c")) {
        coreHome = commandLine.getOptionValue("c");
    }

    String configType = "typical";
    if (commandLine.hasOption("t")) {
        configType = commandLine.getOptionValue("t");
    }

    String userConfigFilename = null;
    if (commandLine.hasOption("d")) {
        userConfigFilename = commandLine.getOptionValue("d");
    }

    File userConfigFile = new File(userConfigFilename);
    if (!userConfigFile.isFile()) {
        System.err.println("Bad user configuration file: " + userConfigFilename);
        System.exit(1);
    }

    File coreHomeFile = new File(coreHome);
    if (!coreHomeFile.isDirectory()) {
        System.err.println("Bad core home: " + coreHome);
        System.exit(1);
    }

    if (instanceId > -1) {
        System.setProperty("instanceId", "" + instanceId);
    } else {
        System.setProperty("instanceId", "" + S4Util.getPID());
    }

    String configBase = coreHome + File.separatorChar + "conf" + File.separatorChar + configType;
    String configPath = configBase + File.separatorChar + "adapter-conf.xml";
    File configFile = new File(configPath);
    if (!configFile.exists()) {
        System.err.printf("adapter config file %s does not exist\n", configPath);
        System.exit(1);
    }

    // load adapter config xml
    ApplicationContext coreContext;
    coreContext = new FileSystemXmlApplicationContext("file:" + configPath);
    ApplicationContext context = coreContext;

    Adapter adapter = (Adapter) context.getBean("adapter");

    ApplicationContext appContext = new FileSystemXmlApplicationContext(
            new String[] { "file:" + userConfigFilename }, context);
    Map listenerBeanMap = appContext.getBeansOfType(EventProducer.class);
    if (listenerBeanMap.size() == 0) {
        System.err.println("No user-defined listener beans");
        System.exit(1);
    }
    EventProducer[] eventListeners = new EventProducer[listenerBeanMap.size()];

    int index = 0;
    for (Iterator it = listenerBeanMap.keySet().iterator(); it.hasNext(); index++) {
        String beanName = (String) it.next();
        System.out.println("Adding producer " + beanName);
        eventListeners[index] = (EventProducer) listenerBeanMap.get(beanName);
    }

    adapter.setEventListeners(eventListeners);
}

From source file:com.tsavo.trade.TradeBot.java

public static void main(String[] args)
        throws InterruptedException, EngineException, AudioException, EngineStateError, PropertyVetoException,
        KeyManagementException, NoSuchAlgorithmException, ExchangeException, NotAvailableFromExchangeException,
        NotYetImplementedForExchangeException, IOException {
    //initSSL(); // Setup the SSL certificate to interact with mtgox over
    // secure http.

    //System.setProperty("org.joda.money.CurrencyUnitDataProvider", "org.joda.money.CryptsyCurrencyUnitDataProvider");
    Portfolio portfolio = new Portfolio();
    File dest = new File("portfolio.json");
    if (dest.exists()) {
        InputStream file;//from   w  w w. ja v a2s  .c  om
        try {
            file = new FileInputStream(dest);
            InputStream buffer = new BufferedInputStream(file);
            // ObjectInput input;
            // input = new ObjectInputStream(buffer);
            ObjectMapper mapper = new ObjectMapper();
            portfolio = mapper.readValue(buffer, Portfolio.class);
            file.close();
            // input.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    Finder finder = new Finder(portfolio);
    System.out.println("System initialized successfully. Looking for opportunities...");
    while (true) {
        finder.run();
        Thread.sleep(10000);
    }
}

From source file:MainGeneratePicasaIniFile.java

public static void main(String[] args) {
    try {/*  w w  w . ja v  a  2s.c om*/

        Calendar start = Calendar.getInstance();

        start.set(1899, 11, 30, 0, 0);

        PicasawebService myService = new PicasawebService("My Application");
        myService.setUserCredentials(args[0], args[1]);

        // Get a list of all entries
        URL metafeedUrl = new URL("http://picasaweb.google.com/data/feed/api/user/" + args[0] + "?kind=album");
        System.out.println("Getting Picasa Web Albums entries...\n");
        UserFeed resultFeed = myService.getFeed(metafeedUrl, UserFeed.class);

        // resultFeed.

        File root = new File(args[2]);
        File[] albuns = root.listFiles();

        int j = 0;
        List<GphotoEntry> entries = resultFeed.getEntries();
        for (int i = 0; i < entries.size(); i++) {
            GphotoEntry entry = entries.get(i);
            String href = entry.getHtmlLink().getHref();

            String name = entry.getTitle().getPlainText();

            for (File album : albuns) {
                if (album.getName().equals(name) && !href.contains("02?")) {
                    File picasaini = new File(album, "Picasa.ini");

                    if (!picasaini.exists()) {
                        StringBuilder builder = new StringBuilder();

                        builder.append("\n");
                        builder.append("[Picasa]\n");
                        builder.append("name=");
                        builder.append(name);
                        builder.append("\n");
                        builder.append("location=");
                        Collection<Extension> extensions = entry.getExtensions();

                        for (Extension extension : extensions) {

                            if (extension instanceof GphotoLocation) {
                                GphotoLocation location = (GphotoLocation) extension;
                                if (location.getValue() != null) {
                                    builder.append(location.getValue());
                                }
                            }
                        }
                        builder.append("\n");
                        builder.append("category=Folders on Disk");
                        builder.append("\n");
                        builder.append("date=");
                        String source = name.substring(0, 10);

                        DateFormat formater = new SimpleDateFormat("yyyy-MM-dd");

                        Date date = formater.parse(source);

                        Calendar end = Calendar.getInstance();

                        end.setTime(date);

                        builder.append(daysBetween(start, end));
                        builder.append(".000000");
                        builder.append("\n");
                        builder.append(args[0]);
                        builder.append("_lh=");
                        builder.append(entry.getGphotoId());
                        builder.append("\n");
                        builder.append("P2category=Folders on Disk");
                        builder.append("\n");

                        URL feedUrl = new URL("https://picasaweb.google.com/data/feed/api/user/" + args[0]
                                + "/albumid/" + entry.getGphotoId());

                        AlbumFeed feed = myService.getFeed(feedUrl, AlbumFeed.class);

                        for (GphotoEntry photo : feed.getEntries()) {
                            builder.append("\n");
                            builder.append("[");
                            builder.append(photo.getTitle().getPlainText());
                            builder.append("]");
                            builder.append("\n");
                            long id = Long.parseLong(photo.getGphotoId());

                            builder.append("IIDLIST_");
                            builder.append(args[0]);
                            builder.append("_lh=");
                            builder.append(Long.toHexString(id));
                            builder.append("\n");
                        }

                        System.out.println(builder.toString());
                        IOUtils.write(builder.toString(), new FileOutputStream(picasaini));
                        j++;
                    }
                }

            }

        }
        System.out.println(j);
        System.out.println("\nTotal Entries: " + entries.size());
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.act.biointerpretation.desalting.ChemicalDesalter.java

public static void main(String[] args) throws Exception {
    Options opts = new Options();
    for (Option.Builder b : OPTION_BUILDERS) {
        opts.addOption(b.build());/*www. ja  va  2 s .  co m*/
    }

    CommandLine cl = null;
    try {
        CommandLineParser parser = new DefaultParser();
        cl = parser.parse(opts, args);
    } catch (ParseException e) {
        System.err.format("Argument parsing failed: %s\n", e.getMessage());
        HELP_FORMATTER.printHelp(LoadPlateCompositionIntoDB.class.getCanonicalName(), HELP_MESSAGE, opts, null,
                true);
        System.exit(1);
    }

    if (cl.hasOption("help")) {
        HELP_FORMATTER.printHelp(ReactionDesalter.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        return;
    }

    ChemicalDesalter runner = new ChemicalDesalter();
    String outAnalysis = cl.getOptionValue(OPTION_OUTPUT_PREFIX);
    if (cl.hasOption(OPTION_INCHI_INPUT_LIST)) {
        File inputFile = new File(cl.getOptionValue(OPTION_INCHI_INPUT_LIST));
        if (!inputFile.exists()) {
            System.err.format("Cannot find input file at %s\n", inputFile.getAbsolutePath());
            HELP_FORMATTER.printHelp(LoadPlateCompositionIntoDB.class.getCanonicalName(), HELP_MESSAGE, opts,
                    null, true);
            System.exit(1);
        }
        runner.exampleChemicalsList(outAnalysis, inputFile);
    }
}

From source file:net.minecraftforge.fml.common.patcher.GenDiffSet.java

public static void main(String[] args) throws IOException {
    String sourceJar = args[0]; //Clean Vanilla jar minecraft.jar or minecraft_server.jar
    String targetDir = args[1]; //Directory containing obfed output classes, typically mcp/reobf/minecraft
    String deobfData = args[2]; //Path to FML's deobfusication_data.lzma
    String outputDir = args[3]; //Path to place generated .binpatch
    String killTarget = args[4]; //"true" if we should destroy the target file if it generated a successful .binpatch

    LogManager.getLogger("GENDIFF").log(Level.INFO,
            String.format("Creating patches at %s for %s from %s", outputDir, sourceJar, targetDir));
    Delta delta = new Delta();
    FMLDeobfuscatingRemapper remapper = FMLDeobfuscatingRemapper.INSTANCE;
    remapper.setupLoadOnly(deobfData, false);
    JarFile sourceZip = new JarFile(sourceJar);
    boolean kill = killTarget.equalsIgnoreCase("true");

    File f = new File(outputDir);
    f.mkdirs();/*from ww  w .  j  a  va2 s.c om*/

    for (String name : remapper.getObfedClasses()) {
        //            Logger.getLogger("GENDIFF").info(String.format("Evaluating path for data :%s",name));
        String fileName = name;
        String jarName = name;
        if (RESERVED_NAMES.contains(name.toUpperCase(Locale.ENGLISH))) {
            fileName = "_" + name;
        }
        File targetFile = new File(targetDir, fileName.replace('/', File.separatorChar) + ".class");
        jarName = jarName + ".class";
        if (targetFile.exists()) {
            String sourceClassName = name.replace('/', '.');
            String targetClassName = remapper.map(name).replace('/', '.');
            JarEntry entry = sourceZip.getJarEntry(jarName);
            byte[] vanillaBytes = toByteArray(sourceZip, entry);
            byte[] patchedBytes = Files.toByteArray(targetFile);

            byte[] diff = delta.compute(vanillaBytes, patchedBytes);

            ByteArrayDataOutput diffOut = ByteStreams.newDataOutput(diff.length + 50);
            // Original name
            diffOut.writeUTF(name);
            // Source name
            diffOut.writeUTF(sourceClassName);
            // Target name
            diffOut.writeUTF(targetClassName);
            // exists at original
            diffOut.writeBoolean(entry != null);
            if (entry != null) {
                diffOut.writeInt(Hashing.adler32().hashBytes(vanillaBytes).asInt());
            }
            // length of patch
            diffOut.writeInt(diff.length);
            // patch
            diffOut.write(diff);

            File target = new File(outputDir, targetClassName + ".binpatch");
            target.getParentFile().mkdirs();
            Files.write(diffOut.toByteArray(), target);
            Logger.getLogger("GENDIFF").info(String.format("Wrote patch for %s (%s) at %s", name,
                    targetClassName, target.getAbsolutePath()));
            if (kill) {
                targetFile.delete();
                Logger.getLogger("GENDIFF").info(String.format("  Deleted target: %s", targetFile.toString()));
            }
        }
    }
    sourceZip.close();
}

From source file:MainClass.java

public static void main(String args[]) {
    File f1 = new File("MainClass.java");
    System.out.println("File Name:" + f1.getName());
    System.out.println("Path:" + f1.getPath());
    System.out.println("Abs Path:" + f1.getAbsolutePath());
    System.out.println("Parent:" + f1.getParent());
    System.out.println(f1.exists() ? "exists" : "does not exist");
    System.out.println(f1.canWrite() ? "is writeable" : "is not writeable");
    System.out.println(f1.canRead() ? "is readable" : "is not readable");
    System.out.println("is a directory" + f1.isDirectory());
    System.out.println(f1.isFile() ? "is normal file" : "might be a named pipe");
    System.out.println(f1.isAbsolute() ? "is absolute" : "is not absolute");
    System.out.println("File last modified:" + f1.lastModified());
    System.out.println("File size:" + f1.length() + " Bytes");
}

From source file:com.jaeksoft.searchlib.parser.ExternalParser.java

public final static void main(String[] args) {
    Results results = null;//from   www.  j  a  v  a  2s  .c o m
    try {
        File fileParserConfig = new File(FILE_PARSER_CONFIG);
        if (!fileParserConfig.exists())
            throw new FileNotFoundException(fileParserConfig.getAbsolutePath());
        XPathParser xpp = new XPathParser(fileParserConfig);
        Parser parser = (Parser) ParserFactory.create(null, xpp, xpp.getNode("/parser"));
        if (parser == null)
            throw new SearchLibException("Parser not found");
        File fileParserCommand = new File(FILE_PARSER_COMMAND);
        if (!fileParserCommand.exists())
            throw new FileNotFoundException(fileParserCommand.getAbsolutePath());
        Command command = JsonUtils.getObject(fileParserCommand, Command.class);
        if (command == null)
            throw new SearchLibException("Not parsing command found");
        StartStopListener.OPENSEARCHSERVER_DATA_FILE = new File(command.opensearchserver_data_path);
        IndexDocument indexSourceDocument = command.sourceDocument == null ? null
                : DocumentUpdate.getIndexDocument(command.sourceDocument);
        StreamLimiterFile streamLimiterFile = new StreamLimiterFile(parser.getSizeLimit(),
                new File(command.filePath), command.originalURL);
        parser.doParserContent(indexSourceDocument, streamLimiterFile, command.lang);
        results = parser.getExternalResults();
    } catch (Exception e) {
        results = new Results(e);
    } finally {
        File fileParserResults = new File(FILE_PARSER_RESULTS);
        if (fileParserResults.exists())
            fileParserResults.delete();
        try {
            JsonUtils.jsonToFile(results, fileParserResults);
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
    }
    System.exit(0);
}

From source file:com.turn.ttorrent.cli.TorrentMain.java

/**
 * Torrent reader and creator./* www  . jav a2s  .  co m*/
 *
 * <p>
 * You can use the {@code main()} function of this class to read or create
 * torrent files. See usage for details.
 * </p>
 *
 */
public static void main(String[] args) {
    BasicConfigurator.configure(new ConsoleAppender(new PatternLayout("%-5p: %m%n")));

    CmdLineParser parser = new CmdLineParser();
    CmdLineParser.Option help = parser.addBooleanOption('h', "help");
    CmdLineParser.Option filename = parser.addStringOption('t', "torrent");
    CmdLineParser.Option create = parser.addBooleanOption('c', "create");
    CmdLineParser.Option pieceLength = parser.addIntegerOption('l', "length");
    CmdLineParser.Option announce = parser.addStringOption('a', "announce");

    try {
        parser.parse(args);
    } catch (CmdLineParser.OptionException oe) {
        System.err.println(oe.getMessage());
        usage(System.err);
        System.exit(1);
    }

    // Display help and exit if requested
    if (Boolean.TRUE.equals((Boolean) parser.getOptionValue(help))) {
        usage(System.out);
        System.exit(0);
    }

    String filenameValue = (String) parser.getOptionValue(filename);
    if (filenameValue == null) {
        usage(System.err, "Torrent file must be provided!");
        System.exit(1);
    }

    Integer pieceLengthVal = (Integer) parser.getOptionValue(pieceLength);
    if (pieceLengthVal == null) {
        pieceLengthVal = Torrent.DEFAULT_PIECE_LENGTH;
    } else {
        pieceLengthVal = pieceLengthVal * 1024;
    }
    logger.info("Using piece length of {} bytes.", pieceLengthVal);

    Boolean createFlag = (Boolean) parser.getOptionValue(create);

    //For repeated announce urls
    @SuppressWarnings("unchecked")
    Vector<String> announceURLs = (Vector<String>) parser.getOptionValues(announce);

    String[] otherArgs = parser.getRemainingArgs();

    if (Boolean.TRUE.equals(createFlag) && (otherArgs.length != 1 || announceURLs.isEmpty())) {
        usage(System.err,
                "Announce URL and a file or directory must be " + "provided to create a torrent file!");
        System.exit(1);
    }

    OutputStream fos = null;
    try {
        if (Boolean.TRUE.equals(createFlag)) {
            if (filenameValue != null) {
                fos = new FileOutputStream(filenameValue);
            } else {
                fos = System.out;
            }

            //Process the announce URLs into URIs
            List<URI> announceURIs = new ArrayList<URI>();
            for (String url : announceURLs) {
                announceURIs.add(new URI(url));
            }

            //Create the announce-list as a list of lists of URIs
            //Assume all the URI's are first tier trackers
            List<List<URI>> announceList = new ArrayList<List<URI>>();
            announceList.add(announceURIs);

            File source = new File(otherArgs[0]);
            if (!source.exists() || !source.canRead()) {
                throw new IllegalArgumentException(
                        "Cannot access source file or directory " + source.getName());
            }

            String creator = String.format("%s (ttorrent)", System.getProperty("user.name"));

            Torrent torrent = null;
            if (source.isDirectory()) {
                List<File> files = new ArrayList<File>(
                        FileUtils.listFiles(source, TrueFileFilter.TRUE, TrueFileFilter.TRUE));
                Collections.sort(files);
                torrent = Torrent.create(source, files, pieceLengthVal, announceList, creator);
            } else {
                torrent = Torrent.create(source, pieceLengthVal, announceList, creator);
            }

            torrent.save(fos);
        } else {
            Torrent.load(new File(filenameValue), true);
        }
    } catch (Exception e) {
        logger.error("{}", e.getMessage(), e);
        System.exit(2);
    } finally {
        if (fos != System.out) {
            IOUtils.closeQuietly(fos);
        }
    }
}