Example usage for java.io File exists

List of usage examples for java.io File exists

  1. HOME
  2. Java
  3. java
  4. java.io.*
  5. File
  6. exists

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:com.meltmedia.rodimus.RodimusCli.java

public static void main(String... args) {
    try {//from w w  w.ja v  a  2  s .c om
        final Cli<RodimusInterface> cli = CliFactory.createCli(RodimusInterface.class);
        final RodimusInterface options = cli.parseArguments(args);

        // if help was requested, then display the help message and exit.
        if (options.isHelp()) {
            System.out.println(cli.getHelpMessage());
            return;
        }

        final boolean verbose = options.isVerbose();

        if (options.getFiles() == null || options.getFiles().size() < 1) {
            System.out.println(cli.getHelpMessage());
            return;
        }

        // get the input file.
        File inputFile = options.getFiles().get(0);

        // get the output file.
        File outputDir = null;
        if (options.getFiles().size() > 1) {
            outputDir = options.getFiles().get(1);
        } else {
            outputDir = new File(inputFile.getName().replaceFirst("\\.[^.]+\\Z", ""));
        }
        if (outputDir.exists() && !outputDir.isDirectory()) {
            throw new Exception(outputDir + " is not a directory.");
        }
        outputDir.mkdirs();

        transformDocument(inputFile, outputDir, verbose);
    } catch (Exception e) {
        e.printStackTrace(System.err);
    }
}

From source file:de.uni_koblenz.jgralab.utilities.tgraphbrowser.TGraphBrowserServer.java

/**
 * Runs the server. Needed args: -w --workspace the workspace
 * /*from  w  w w . j  a v  a 2  s.c o  m*/
 * @param args
 */
public static void main(String[] args) {
    CommandLine comLine = processCommandLineOptions(args);
    assert comLine != null;
    try {
        starttime = System.currentTimeMillis();
        String portnumber = comLine.getOptionValue("p");
        String workspacePath;

        if (comLine.hasOption("r")) {
            TwoDVisualizer.PRINT_ROLE_NAMES = true;
        }

        if (comLine.hasOption("w")) {
            workspacePath = comLine.getOptionValue("w");
        } else {
            File workspace = new File(System.getProperty("java.io.tmpdir") + File.separator + "tgraphbrowser");
            if (!workspace.exists()) {
                if (!workspace.mkdir()) {
                    logger.info("The temp folder " + workspace.getAbsolutePath() + " could not be created.");
                }
            }
            workspace = new File(workspace.getAbsoluteFile() + File.separator + "workspace");
            if (!workspace.exists()) {
                if (!workspace.mkdir()) {
                    logger.info(
                            "The default workspace " + workspace.getAbsolutePath() + " could not be created.");
                }
            }
            workspacePath = workspace.getAbsolutePath();
        }
        new TGraphBrowserServer(portnumber == null ? DEFAULT_PORT : Integer.parseInt(portnumber), workspacePath,
                comLine.getOptionValue("m"), comLine.getOptionValue("s")).start();
        if (comLine.getOptionValue("ic") != null) {
            TabularVisualizer.NUMBER_OF_INCIDENCES_PER_PAGE = Math
                    .max(Integer.parseInt(comLine.getOptionValue("ic")), 1);
        }
        if (comLine.hasOption("d")) {
            StateRepository.dot = comLine.getOptionValue("d");
        } else {
            System.out.println("The 2D-Visualization is disabled because parameter -d is not set.");
        }
        String timeout = comLine.getOptionValue("t");
        String checkIntervall = comLine.getOptionValue("i");
        new DeleteUnusedStates(timeout == null ? 600 : Integer.parseInt(timeout),
                checkIntervall == null ? 60 : Integer.parseInt(checkIntervall)).start();
        if (comLine.hasOption("td")) {
            TwoDVisualizer.SECONDS_TO_WAIT_FOR_DOT = Integer.parseInt(comLine.getOptionValue("td"));
        }
    } catch (IOException e) {
        System.out.println(e);
    }
}

From source file:PKCS12Import.java

public static void main(String[] args) throws Exception {
    if (args.length < 1) {
        System.err.println("usage: java PKCS12Import {pkcs12file} [newjksfile]");
        System.exit(1);/*from   w  w  w  .jav  a  2 s  .  c o  m*/
    }

    File fileIn = new File(args[0]);
    File fileOut;
    if (args.length > 1) {
        fileOut = new File(args[1]);
    } else {
        fileOut = new File("newstore.jks");
    }

    if (!fileIn.canRead()) {
        System.err.println("Unable to access input keystore: " + fileIn.getPath());
        System.exit(2);
    }

    if (fileOut.exists() && !fileOut.canWrite()) {
        System.err.println("Output file is not writable: " + fileOut.getPath());
        System.exit(2);
    }

    KeyStore kspkcs12 = KeyStore.getInstance("pkcs12");
    KeyStore ksjks = KeyStore.getInstance("jks");

    System.out.print("Enter input keystore passphrase: ");
    char[] inphrase = readPassphrase();
    System.out.print("Enter output keystore passphrase: ");
    char[] outphrase = readPassphrase();

    kspkcs12.load(new FileInputStream(fileIn), inphrase);

    ksjks.load((fileOut.exists()) ? new FileInputStream(fileOut) : null, outphrase);

    Enumeration eAliases = kspkcs12.aliases();
    int n = 0;
    while (eAliases.hasMoreElements()) {
        String strAlias = (String) eAliases.nextElement();
        System.err.println("Alias " + n++ + ": " + strAlias);

        if (kspkcs12.isKeyEntry(strAlias)) {
            System.err.println("Adding key for alias " + strAlias);
            Key key = kspkcs12.getKey(strAlias, inphrase);

            Certificate[] chain = kspkcs12.getCertificateChain(strAlias);

            ksjks.setKeyEntry(strAlias, key, outphrase, chain);
        }
    }

    OutputStream out = new FileOutputStream(fileOut);
    ksjks.store(out, outphrase);
    out.close();
}

From source file:com.github.s4ke.moar.cli.Main.java

public static void main(String[] args) throws ParseException, IOException {
    // create Options object
    Options options = new Options();

    options.addOption("rf", true,
            "file containing the regexes to test against (multiple regexes are separated by one empty line)");
    options.addOption("r", true, "regex to test against");

    options.addOption("mf", true, "file/folder to read the MOA from");
    options.addOption("mo", true, "folder to export the MOAs to (overwrites if existent)");

    options.addOption("sf", true, "file to read the input string(s) from");
    options.addOption("s", true, "string to test the MOA/Regex against");

    options.addOption("m", false, "multiline matching mode (search in string for regex)");

    options.addOption("ls", false, "treat every line of the input string file as one string");
    options.addOption("t", false, "trim lines if -ls is set");

    options.addOption("d", false, "only do determinism check");

    options.addOption("help", false, "prints this dialog");

    CommandLineParser parser = new DefaultParser();
    CommandLine cmd = parser.parse(options, args);

    if (args.length == 0 || cmd.hasOption("help")) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("moar-cli", options);
        return;/*from   www.j a  v  a 2  s  .  c o m*/
    }

    List<String> patternNames = new ArrayList<>();
    List<MoaPattern> patterns = new ArrayList<>();
    List<String> stringsToCheck = new ArrayList<>();

    if (cmd.hasOption("r")) {
        String regexStr = cmd.getOptionValue("r");
        try {
            patterns.add(MoaPattern.compile(regexStr));
            patternNames.add(regexStr);
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }

    if (cmd.hasOption("rf")) {
        String fileName = cmd.getOptionValue("rf");
        List<String> regexFileContents = readFileContents(new File(fileName));
        int emptyLineCountAfterRegex = 0;
        StringBuilder regexStr = new StringBuilder();
        for (String line : regexFileContents) {
            if (emptyLineCountAfterRegex >= 1) {
                if (regexStr.length() > 0) {
                    patterns.add(MoaPattern.compile(regexStr.toString()));
                    patternNames.add(regexStr.toString());
                }
                regexStr.setLength(0);
                emptyLineCountAfterRegex = 0;
            }
            if (line.trim().equals("")) {
                if (regexStr.length() > 0) {
                    ++emptyLineCountAfterRegex;
                }
            } else {
                regexStr.append(line);
            }
        }
        if (regexStr.length() > 0) {
            try {
                patterns.add(MoaPattern.compile(regexStr.toString()));
                patternNames.add(regexStr.toString());
            } catch (Exception e) {
                System.out.println(e.getMessage());
                return;
            }
            regexStr.setLength(0);
        }
    }

    if (cmd.hasOption("mf")) {
        String fileName = cmd.getOptionValue("mf");
        File file = new File(fileName);
        if (file.isDirectory()) {
            System.out.println(fileName + " is a directory, using all *.moar files as patterns");
            File[] moarFiles = file.listFiles(pathname -> pathname.getName().endsWith(".moar"));
            for (File moar : moarFiles) {
                String jsonString = readWholeFile(moar);
                patterns.add(MoarJSONSerializer.fromJSON(jsonString));
                patternNames.add(moar.getAbsolutePath());
            }
        } else {
            System.out.println(fileName + " is a single file. using it directly (no check for *.moar suffix)");
            String jsonString = readWholeFile(file);
            patterns.add(MoarJSONSerializer.fromJSON(jsonString));
            patternNames.add(fileName);
        }
    }

    if (cmd.hasOption("s")) {
        String str = cmd.getOptionValue("s");
        stringsToCheck.add(str);
    }

    if (cmd.hasOption("sf")) {
        boolean treatLineAsString = cmd.hasOption("ls");
        boolean trim = cmd.hasOption("t");
        String fileName = cmd.getOptionValue("sf");
        StringBuilder stringBuilder = new StringBuilder();
        boolean firstLine = true;
        for (String str : readFileContents(new File(fileName))) {
            if (treatLineAsString) {
                if (trim) {
                    str = str.trim();
                    if (str.length() == 0) {
                        continue;
                    }
                }
                stringsToCheck.add(str);
            } else {
                if (!firstLine) {
                    stringBuilder.append("\n");
                }
                if (firstLine) {
                    firstLine = false;
                }
                stringBuilder.append(str);
            }
        }
        if (!treatLineAsString) {
            stringsToCheck.add(stringBuilder.toString());
        }
    }

    if (cmd.hasOption("d")) {
        //at this point we have already built the Patterns
        //so just give the user a short note.
        System.out.println("All Regexes seem to be deterministic.");
        return;
    }

    if (patterns.size() == 0) {
        System.out.println("no patterns to check");
        return;
    }

    if (cmd.hasOption("mo")) {
        String folder = cmd.getOptionValue("mo");
        File folderFile = new File(folder);
        if (!folderFile.exists()) {
            System.out.println(folder + " does not exist. creating...");
            if (!folderFile.mkdirs()) {
                System.out.println("folder " + folder + " could not be created");
            }
        }
        int cnt = 0;
        for (MoaPattern pattern : patterns) {
            String patternAsJSON = MoarJSONSerializer.toJSON(pattern);
            try (BufferedWriter writer = new BufferedWriter(
                    new FileWriter(new File(folderFile, "pattern" + ++cnt + ".moar")))) {
                writer.write(patternAsJSON);
            }
        }
        System.out.println("stored " + cnt + " patterns in " + folder);
    }

    if (stringsToCheck.size() == 0) {
        System.out.println("no strings to check");
        return;
    }

    boolean multiline = cmd.hasOption("m");

    for (String string : stringsToCheck) {
        int curPattern = 0;
        for (MoaPattern pattern : patterns) {
            MoaMatcher matcher = pattern.matcher(string);
            if (!multiline) {
                if (matcher.matches()) {
                    System.out.println("\"" + patternNames.get(curPattern) + "\" matches \"" + string + "\"");
                } else {
                    System.out.println(
                            "\"" + patternNames.get(curPattern) + "\" does not match \"" + string + "\"");
                }
            } else {
                StringBuilder buffer = new StringBuilder(string);
                int additionalCharsPerMatch = ("<match>" + "</match>").length();
                int matchCount = 0;
                while (matcher.nextMatch()) {
                    buffer.replace(matcher.getStart() + matchCount * additionalCharsPerMatch,
                            matcher.getEnd() + matchCount * additionalCharsPerMatch,
                            "<match>" + string.substring(matcher.getStart(), matcher.getEnd()) + "</match>");
                    ++matchCount;
                }
                System.out.println(buffer.toString());
            }
        }
        ++curPattern;
    }
}

From source file:com.zarkonnen.longan.Main.java

public static void main(String[] args) throws IOException {
    // Use Apache Commons CLI (packaged into the Jar) to parse command line options.
    Options options = new Options();
    Option helpO = OptionBuilder.withDescription("print help").create("h");
    Option versionO = OptionBuilder.withDescription("print version").create("v");
    Option outputO = OptionBuilder.withDescription("output file").withLongOpt("out").hasArg()
            .withArgName("file").create("o");
    Option formatO = OptionBuilder
            .withDescription("output format: one of plaintext (default) and visualize (debug output in png)")
            .hasArg().withArgName("format").withLongOpt("format").create();
    Option serverO = OptionBuilder.withDescription("launches server mode: Server mode reads "
            + "command line strings one per line exactly as above. If no output file is "
            + "specified, returns a line containing the number of output lines before the "
            + "output. If there is an error, returns a single line with the error message. "
            + "Shut down server by sending \"quit\".").withLongOpt("server").create();
    Option openCLO = OptionBuilder
            .withDescription(//from  ww  w  . j av  a  2s.  c o  m
                    "enables use of the graphics card to " + "support the OCR system. Defaults to true.")
            .withLongOpt("enable-opencl").hasArg().withArgName("enabled").create();
    options.addOption(helpO);
    options.addOption(versionO);
    options.addOption(outputO);
    options.addOption(formatO);
    options.addOption(serverO);
    options.addOption(openCLO);
    CommandLineParser clp = new GnuParser();
    try {
        CommandLine line = clp.parse(options, args);
        if (line.hasOption("h")) {
            new HelpFormatter().printHelp(INVOCATION, options);
            System.exit(0);
        }
        if (line.hasOption("v")) {
            System.out.println(Longan.VERSION);
            System.exit(0);
        }
        boolean enableOpenCL = true;
        if (line.hasOption("enable-opencl")) {
            enableOpenCL = line.getOptionValue("enable-opencl").toLowerCase().equals("true")
                    || line.getOptionValue("enable-opencl").equals("1");
        }
        if (line.hasOption("server")) {
            Longan longan = Longan.getDefaultImplementation(enableOpenCL);
            BufferedReader inputR = new BufferedReader(new InputStreamReader(System.in));
            while (true) {
                String input = inputR.readLine();
                if (input.trim().equals("quit")) {
                    return;
                }
                String[] args2 = splitInput(input);
                Options o2 = new Options();
                o2.addOption(outputO);
                o2.addOption(formatO);
                try {
                    line = clp.parse(o2, args2);

                    File outFile = null;
                    if (line.hasOption("o")) {
                        outFile = new File(line.getOptionValue("o"));
                    }

                    ResultConverter format = FORMATS.get(line.getOptionValue("format", "plaintext"));
                    if (format != DEFAULT_FORMAT && outFile == null) {
                        System.out.println("You must specify an output file for non-plaintext output.");
                        continue;
                    }

                    if (line.getArgList().isEmpty()) {
                        System.out.println("Please specify an input image.");
                        continue;
                    }
                    if (line.getArgList().size() > 1) {
                        System.err.println("Please specify one input image at a time");
                        continue;
                    }

                    File inFile = new File((String) line.getArgList().get(0));

                    if (!inFile.exists()) {
                        System.out.println("The input image does not exist.");
                        continue;
                    }

                    try {
                        Result result = longan.process(ImageIO.read(inFile));
                        if (outFile == null) {
                            String txt = DEFAULT_FORMAT.convert(result);
                            System.out.println(numNewlines(txt) + 1);
                            System.out.print(txt);
                        } else {
                            if (outFile.getAbsoluteFile().getParentFile() != null
                                    && !outFile.getAbsoluteFile().getParentFile().exists()) {
                                outFile.getParentFile().mkdirs();
                            }
                            FileOutputStream fos = new FileOutputStream(outFile);
                            try {
                                format.write(result, fos);
                            } finally {
                                fos.close();
                            }
                        }
                    } catch (Exception e) {
                        System.out.println("Processing error: " + exception(e));
                    }
                } catch (ParseException e) {
                    System.out.println("Input not recognized: " + exception(e));
                }
            } // End server loop
        } else {
            // Single invocation
            File outFile = null;
            if (line.hasOption("o")) {
                outFile = new File(line.getOptionValue("o"));
            }

            ResultConverter format = FORMATS.get(line.getOptionValue("format", "plaintext"));
            if (format != DEFAULT_FORMAT && outFile == null) {
                System.err.println("You must specify an output file for non-plaintext output.");
                System.exit(1);
            }

            if (line.getArgList().isEmpty()) {
                System.err.println("Please specify an input image.");
                new HelpFormatter().printHelp(INVOCATION, options);
                System.exit(1);
            }
            if (line.getArgList().size() > 1) {
                System.err.println("Please specify one input image only. To process multiple "
                        + "images, use server mode.");
                System.exit(1);
            }
            File inFile = new File((String) line.getArgList().get(0));

            if (!inFile.exists()) {
                System.err.println("The input image does not exist.");
                System.exit(1);
            }

            try {
                Result result = Longan.getDefaultImplementation(enableOpenCL).process(ImageIO.read(inFile));
                if (outFile == null) {
                    String txt = DEFAULT_FORMAT.convert(result);
                    System.out.print(txt);
                } else {
                    if (outFile.getAbsoluteFile().getParentFile() != null
                            && !outFile.getAbsoluteFile().getParentFile().exists()) {
                        outFile.getParentFile().mkdirs();
                    }
                    FileOutputStream fos = new FileOutputStream(outFile);
                    try {
                        format.write(format.convert(result), fos);
                    } finally {
                        fos.close();
                    }
                }
            } catch (Exception e) {
                System.err.println("Processing error: " + exception(e));
                System.exit(1);
            }
        }
    } catch (ParseException e) {
        System.err.println("Parsing command line input failed: " + exception(e));
        System.exit(1);
    }
}

From source file:org.jahia.loganalyzer.internal.JahiaLogAnalyzerImpl.java

public static void main(String[] args) {
    JahiaLogAnalyzer jahiaLogAnalyzer = new JahiaLogAnalyzerImpl();
    File inputFile = null;
    if (args != null && args.length > 0) {
        inputFile = new File(args[0]);
        if (inputFile.exists()) {
            log.info("Analyzing logs in " + inputFile + "...");
        } else {/* w  w w.ja v a 2 s.co m*/
            inputFile = null;
        }
    } else {
        initUI();
    }
    jahiaLogAnalyzer.start(inputFile, null);
}

From source file:act.installer.UniprotInstaller.java

public static void main(String[] args)
        throws IOException, SAXException, ParserConfigurationException, CompoundNotFoundException {
    Options opts = new Options();
    for (Option.Builder b : OPTION_BUILDERS) {
        opts.addOption(b.build());//www .ja  v  a 2s  .c o  m
    }

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

    if (cl.hasOption("help")) {
        HELP_FORMATTER.printHelp(UniprotInstaller.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        System.exit(1);
    }

    File uniprotFile = new File(cl.getOptionValue(OPTION_UNIPROT_PATH));
    String dbName = cl.getOptionValue(OPTION_DB_NAME);

    if (!uniprotFile.exists()) {
        String msg = String.format("Uniprot file path is null");
        LOGGER.error(msg);
        throw new RuntimeException(msg);
    } else {
        MongoDB db = new MongoDB("localhost", 27017, dbName);

        DBIterator iter = db.getDbIteratorOverOrgs();

        Iterator<Organism> orgIterator = new Iterator<Organism>() {
            @Override
            public boolean hasNext() {
                boolean hasNext = iter.hasNext();
                if (!hasNext)
                    iter.close();
                return hasNext;
            }

            @Override
            public Organism next() {
                DBObject o = iter.next();
                return db.convertDBObjectToOrg(o);
            }

        };

        OrgMinimalPrefixGenerator prefixGenerator = new OrgMinimalPrefixGenerator(orgIterator);
        Map<String, String> minimalPrefixMapping = prefixGenerator.getMinimalPrefixMapping();

        UniprotInstaller installer = new UniprotInstaller(uniprotFile, db, minimalPrefixMapping);
        installer.init();
    }
}

From source file:TaskManager.java

public static void main(String[] args) {
    String configFileName = "tasks.conf";

    if (args.length == 1) {
        configFileName = args[0];//from ww w. j  ava 2 s  .c o  m
    }

    File configFile = new File(configFileName);

    if (!configFile.exists() || !configFile.canRead()) {
        System.err.println("Can't read config file '" + configFileName + "'");
        System.exit(1);
    }

    FileReader configReader = null;

    try {
        configReader = new FileReader(configFile);
    } catch (FileNotFoundException fnfX) {
    }

    Tasks taskList = new Tasks(configReader);

    try {
        configReader.close();
    } catch (IOException ioX) {
    }

    TaskManager ex = new TaskManager(taskList);
}

From source file:com.act.utils.parser.GenbankInterpreter.java

public static void main(String[] args) throws Exception {
    Options opts = new Options();
    for (Option.Builder b : OPTION_BUILDERS) {
        opts.addOption(b.build());//from w  w  w  . jav a 2s .c om
    }

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

    if (cl.hasOption("help")) {
        HELP_FORMATTER.printHelp(GenbankInterpreter.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        System.exit(1);
    }

    File genbankFile = new File(cl.getOptionValue(OPTION_GENBANK_PATH));
    String seq_type = cl.getOptionValue(OPTION_SEQ_TYPE);

    if (!genbankFile.exists()) {
        String msg = "Genbank file path is null";
        LOGGER.error(msg);
        throw new RuntimeException(msg);
    } else {
        GenbankInterpreter reader = new GenbankInterpreter(genbankFile, seq_type);
        reader.init();
        reader.printSequences();
    }
}

From source file:com.zimbra.cs.mailbox.util.MetadataDump.java

public static void main(String[] args) {
    try {/*w w  w  .j a v a  2  s .  c o m*/
        CliUtil.toolSetup("WARN");
        int mboxId = 0;
        int itemId = 0;

        PrintStream out = new PrintStream(System.out, true, "utf-8");

        CommandLine cl = parseArgs(args);
        if (cl.hasOption(OPT_HELP)) {
            usage(null);
            System.exit(0);
        }

        // Get data from file.
        String infileName = cl.getOptionValue(OPT_FILE);
        if (infileName != null) {
            File file = new File(infileName);
            if (file.exists()) {
                String encoded = loadFromFile(file);
                Metadata md = new Metadata(encoded);
                String pretty = md.prettyPrint();
                out.println(pretty);
                return;
            } else {
                System.err.println("File " + infileName + " does not exist");
                System.exit(1);
            }
        }

        // Get data from input String.
        String encoded = cl.getOptionValue(OPT_STR);
        if (!StringUtil.isNullOrEmpty(encoded)) {
            Metadata md = new Metadata(encoded);
            String pretty = md.prettyPrint();
            out.println(pretty);
            return;
        }

        // Get data from db.
        DbPool.startup();
        DbConnection conn = null;

        try {
            boolean fromDumpster = cl.hasOption(OPT_DUMPSTER);
            String mboxIdStr = cl.getOptionValue(OPT_MAILBOX_ID);
            String itemIdStr = cl.getOptionValue(OPT_ITEM_ID);
            if (mboxIdStr == null || itemIdStr == null) {
                usage(null);
                System.exit(1);
                return;
            }
            if (mboxIdStr.matches("\\d+")) {
                try {
                    mboxId = Integer.parseInt(mboxIdStr);
                } catch (NumberFormatException e) {
                    System.err.println("Invalid mailbox id " + mboxIdStr);
                    System.exit(1);
                }
            } else {
                conn = DbPool.getConnection();
                mboxId = lookupMailboxIdFromEmail(conn, mboxIdStr);
            }
            try {
                itemId = Integer.parseInt(itemIdStr);
            } catch (NumberFormatException e) {
                usage(null);
                System.exit(1);
            }

            if (conn == null)
                conn = DbPool.getConnection();
            doDump(conn, mboxId, itemId, fromDumpster, out);
        } finally {
            DbPool.quietClose(conn);
        }
    } catch (Exception e) {
        System.err.println(e.getMessage());
        System.err.println();
        System.err.println();
        e.printStackTrace();
        System.exit(1);
    }
}