Example usage for java.io PrintWriter PrintWriter

List of usage examples for java.io PrintWriter PrintWriter

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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

/**
 * Parse file to xml type//from  w  w w . ja  va2s  . co  m
 *
 * @param transformer
 * @param source
 * @param file
 * @throws FileNotFoundException
 * @throws TransformerException
 */
public static void parseFileToXML(Transformer transformer, DOMSource source, File file)
        throws FileNotFoundException, TransformerException {
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    PrintWriter pw = new PrintWriter(file);
    StreamResult streamResult = new StreamResult(pw);
    transformer.transform(source, streamResult);
}

From source file:Main.java

public static void saveXml(Document doc, String filename) {
    try {//from   w w w  .j av  a  2  s.c  o  m
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        DOMSource source = new DOMSource(doc);
        transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
        PrintWriter pw = new PrintWriter(new FileOutputStream(filename));
        StreamResult result = new StreamResult(pw);
        transformer.transform(source, result);
    } catch (TransformerException tfe) {
        tfe.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:by.FTPClientExample.java

public static void main(String[] args) throws UnknownHostException {
    boolean storeFile = false, binaryTransfer = false, error = false, listFiles = false, listNames = false,
            hidden = false;/*from  w w  w.j  av  a  2s .co m*/
    boolean localActive = false, useEpsvWithIPv4 = false, feat = false, printHash = false;
    boolean mlst = false, mlsd = false;
    boolean lenient = false;
    long keepAliveTimeout = -1;
    int controlKeepAliveReplyTimeout = -1;
    int minParams = 5; // listings require 3 params
    String protocol = null; // SSL protocol
    String doCommand = null;
    String trustmgr = null;
    String proxyHost = null;
    int proxyPort = 80;
    String proxyUser = null;
    String proxyPassword = null;
    String username = null;
    String password = null;

    int base = 0;
    for (base = 0; base < args.length; base++) {
        if (args[base].equals("-s")) {
            storeFile = true;
        } else if (args[base].equals("-a")) {
            localActive = true;
        } else if (args[base].equals("-A")) {
            username = "anonymous";
            password = System.getProperty("user.name") + "@" + InetAddress.getLocalHost().getHostName();
        } else if (args[base].equals("-b")) {
            binaryTransfer = true;
        } else if (args[base].equals("-c")) {
            doCommand = args[++base];
            minParams = 3;
        } else if (args[base].equals("-d")) {
            mlsd = true;
            minParams = 3;
        } else if (args[base].equals("-e")) {
            useEpsvWithIPv4 = true;
        } else if (args[base].equals("-f")) {
            feat = true;
            minParams = 3;
        } else if (args[base].equals("-h")) {
            hidden = true;
        } else if (args[base].equals("-k")) {
            keepAliveTimeout = Long.parseLong(args[++base]);
        } else if (args[base].equals("-l")) {
            listFiles = true;
            minParams = 3;
        } else if (args[base].equals("-L")) {
            lenient = true;
        } else if (args[base].equals("-n")) {
            listNames = true;
            minParams = 3;
        } else if (args[base].equals("-p")) {
            protocol = args[++base];
        } else if (args[base].equals("-t")) {
            mlst = true;
            minParams = 3;
        } else if (args[base].equals("-w")) {
            controlKeepAliveReplyTimeout = Integer.parseInt(args[++base]);
        } else if (args[base].equals("-T")) {
            trustmgr = args[++base];
        } else if (args[base].equals("-PrH")) {
            proxyHost = args[++base];
            String parts[] = proxyHost.split(":");
            if (parts.length == 2) {
                proxyHost = parts[0];
                proxyPort = Integer.parseInt(parts[1]);
            }
        } else if (args[base].equals("-PrU")) {
            proxyUser = args[++base];
        } else if (args[base].equals("-PrP")) {
            proxyPassword = args[++base];
        } else if (args[base].equals("-#")) {
            printHash = true;
        } else {
            break;
        }
    }

    int remain = args.length - base;
    if (username != null) {
        minParams -= 2;
    }
    if (remain < minParams) // server, user, pass, remote, local [protocol]
    {
        System.err.println(USAGE);
        System.exit(1);
    }

    String server = args[base++];
    int port = 0;
    String parts[] = server.split(":");
    if (parts.length == 2) {
        server = parts[0];
        port = Integer.parseInt(parts[1]);
    }
    if (username == null) {
        username = args[base++];
        password = args[base++];
    }

    String remote = null;
    if (args.length - base > 0) {
        remote = args[base++];
    }

    String local = null;
    if (args.length - base > 0) {
        local = args[base++];
    }

    final FTPClient ftp;
    if (protocol == null) {
        if (proxyHost != null) {
            System.out.println("Using HTTP proxy server: " + proxyHost);
            ftp = new FTPHTTPClient(proxyHost, proxyPort, proxyUser, proxyPassword);
        } else {
            ftp = new FTPClient();
        }
    } else {
        FTPSClient ftps;
        if (protocol.equals("true")) {
            ftps = new FTPSClient(true);
        } else if (protocol.equals("false")) {
            ftps = new FTPSClient(false);
        } else {
            String prot[] = protocol.split(",");
            if (prot.length == 1) { // Just protocol
                ftps = new FTPSClient(protocol);
            } else { // protocol,true|false
                ftps = new FTPSClient(prot[0], Boolean.parseBoolean(prot[1]));
            }
        }
        ftp = ftps;
        if ("all".equals(trustmgr)) {
            ftps.setTrustManager(TrustManagerUtils.getAcceptAllTrustManager());
        } else if ("valid".equals(trustmgr)) {
            ftps.setTrustManager(TrustManagerUtils.getValidateServerCertificateTrustManager());
        } else if ("none".equals(trustmgr)) {
            ftps.setTrustManager(null);
        }
    }

    if (printHash) {
        ftp.setCopyStreamListener(createListener());
    }
    if (keepAliveTimeout >= 0) {
        ftp.setControlKeepAliveTimeout(keepAliveTimeout);
    }
    if (controlKeepAliveReplyTimeout >= 0) {
        ftp.setControlKeepAliveReplyTimeout(controlKeepAliveReplyTimeout);
    }
    ftp.setListHiddenFiles(hidden);

    // suppress login details
    ftp.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

    try {
        int reply;
        if (port > 0) {
            System.out.println(server + ":" + port);
            ftp.connect(server, port);
        } else {
            ftp.connect(server);
        }
        System.out.println("Connected to " + server + " on " + (port > 0 ? port : ftp.getDefaultPort()));

        // After connection attempt, you should check the reply code to verify
        // success.
        reply = ftp.getReplyCode();

        if (!FTPReply.isPositiveCompletion(reply)) {
            ftp.disconnect();
            System.err.println("FTP server refused connection.");
            System.exit(1);
        }
    } catch (IOException e) {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
        System.err.println("Could not connect to server.");
        e.printStackTrace();
        System.exit(1);
    }

    __main: try {
        System.out.println("???" + username + "," + password);
        if (!ftp.login(username, password)) {
            ftp.logout();
            error = true;
            break __main;
        }

        System.out.println("Remote system is " + ftp.getSystemType());

        if (binaryTransfer) {
            ftp.setFileType(FTP.BINARY_FILE_TYPE);
        } else {
            // in theory this should not be necessary as servers should default to ASCII
            // but they don't all do so - see NET-500
            ftp.setFileType(FTP.ASCII_FILE_TYPE);
        }

        // Use passive mode as default because most of us are
        // behind firewalls these days.
        if (localActive) {
            ftp.enterLocalActiveMode();
        } else {
            ftp.enterLocalPassiveMode();
        }

        ftp.setUseEPSVwithIPv4(useEpsvWithIPv4);

        if (storeFile) {
            InputStream input;

            input = new FileInputStream(local);

            ftp.storeFile(remote, input);

            input.close();
        } else if (listFiles) {
            if (lenient) {
                FTPClientConfig config = new FTPClientConfig();
                config.setLenientFutureDates(true);
                ftp.configure(config);
            }

            for (FTPFile f : ftp.listFiles(remote)) {
                System.out.println(f.getRawListing());
                System.out.println(f.toFormattedString());
            }
        } else if (mlsd) {
            for (FTPFile f : ftp.mlistDir(remote)) {
                System.out.println(f.getRawListing());
                System.out.println(f.toFormattedString());
            }
        } else if (mlst) {
            FTPFile f = ftp.mlistFile(remote);
            if (f != null) {
                System.out.println(f.toFormattedString());
            }
        } else if (listNames) {
            for (String s : ftp.listNames(remote)) {
                System.out.println(s);
            }
        } else if (feat) {
            // boolean feature check
            if (remote != null) { // See if the command is present
                if (ftp.hasFeature(remote)) {
                    System.out.println("Has feature: " + remote);
                } else {
                    if (FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
                        System.out.println("FEAT " + remote + " was not detected");
                    } else {
                        System.out.println("Command failed: " + ftp.getReplyString());
                    }
                }

                // Strings feature check
                String[] features = ftp.featureValues(remote);
                if (features != null) {
                    for (String f : features) {
                        System.out.println("FEAT " + remote + "=" + f + ".");
                    }
                } else {
                    if (FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
                        System.out.println("FEAT " + remote + " is not present");
                    } else {
                        System.out.println("Command failed: " + ftp.getReplyString());
                    }
                }
            } else {
                if (ftp.features()) {
                    //                        Command listener has already printed the output
                } else {
                    System.out.println("Failed: " + ftp.getReplyString());
                }
            }
        } else if (doCommand != null) {
            if (ftp.doCommand(doCommand, remote)) {
                //                  Command listener has already printed the output
                //                    for(String s : ftp.getReplyStrings()) {
                //                        System.out.println(s);
                //                    }
            } else {
                System.out.println("Failed: " + ftp.getReplyString());
            }
        } else {
            OutputStream output;

            output = new FileOutputStream(local);

            ftp.retrieveFile(remote, output);

            output.close();
        }

        ftp.noop(); // check that control connection is working OK

        ftp.logout();
    } catch (FTPConnectionClosedException e) {
        error = true;
        System.err.println("Server closed connection.");
        e.printStackTrace();
    } catch (IOException e) {
        error = true;
        e.printStackTrace();
    } finally {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
    }

    System.exit(error ? 1 : 0);
}

From source file:Main.java

public static String getErrorInfo(Throwable arg1) {
    Writer writer = new StringWriter();
    PrintWriter pw = new PrintWriter(writer);
    arg1.printStackTrace(pw);/*ww  w . j av a 2 s.  co  m*/
    pw.close();
    String error = writer.toString();
    return error;
}

From source file:Main.java

/**
 * Print a DOM tree to an output stream or if there is an exception while doing so, print the
 * stack trace./*www.j  a  v a 2  s.co  m*/
 *
 * @param dom
 * @param os
 */
public static void printDom(Node dom, OutputStream os) {
    Transformer trans;
    PrintWriter w = new PrintWriter(os);
    try {
        TransformerFactory fact = TransformerFactory.newInstance();
        trans = fact.newTransformer();
        trans.transform(new DOMSource(dom), new StreamResult(new OutputStreamWriter(os)));
    } catch (TransformerException e) {
        w.println("An error ocurred while transforming the given DOM:");
        e.printStackTrace(w);
    }
}

From source file:Main.java

public static String dumpException(Throwable e) {
    StringWriter sw = new StringWriter(160);
    sw.write(e.getClass().getName());/*from  w w  w. j ava2  s  .com*/
    sw.write(":\n");
    e.printStackTrace(new PrintWriter(sw));
    return sw.toString();
}

From source file:ddc.commons.ftp.FTPClientExample.java

public static void main(String[] args) throws UnknownHostException {
    boolean storeFile = false, binaryTransfer = false, error = false, listFiles = false, listNames = false,
            hidden = false;//  w  ww . j a va 2 s . c  o  m
    boolean localActive = false, useEpsvWithIPv4 = false, feat = false, printHash = false;
    boolean mlst = false, mlsd = false;
    boolean lenient = false;
    long keepAliveTimeout = -1;
    int controlKeepAliveReplyTimeout = -1;
    int minParams = 5; // listings require 3 params
    String protocol = null; // SSL protocol
    String doCommand = null;
    String trustmgr = null;
    String proxyHost = null;
    int proxyPort = 80;
    String proxyUser = null;
    String proxyPassword = null;
    String username = null;
    String password = null;

    int base = 0;
    for (base = 0; base < args.length; base++) {
        if (args[base].equals("-s")) {
            storeFile = true;
        } else if (args[base].equals("-a")) {
            localActive = true;
        } else if (args[base].equals("-A")) {
            username = "anonymous";
            password = System.getProperty("user.name") + "@" + InetAddress.getLocalHost().getHostName();
        } else if (args[base].equals("-b")) {
            binaryTransfer = true;
        } else if (args[base].equals("-c")) {
            doCommand = args[++base];
            minParams = 3;
        } else if (args[base].equals("-d")) {
            mlsd = true;
            minParams = 3;
        } else if (args[base].equals("-e")) {
            useEpsvWithIPv4 = true;
        } else if (args[base].equals("-f")) {
            feat = true;
            minParams = 3;
        } else if (args[base].equals("-h")) {
            hidden = true;
        } else if (args[base].equals("-k")) {
            keepAliveTimeout = Long.parseLong(args[++base]);
        } else if (args[base].equals("-l")) {
            listFiles = true;
            minParams = 3;
        } else if (args[base].equals("-L")) {
            lenient = true;
        } else if (args[base].equals("-n")) {
            listNames = true;
            minParams = 3;
        } else if (args[base].equals("-p")) {
            protocol = args[++base];
        } else if (args[base].equals("-t")) {
            mlst = true;
            minParams = 3;
        } else if (args[base].equals("-w")) {
            controlKeepAliveReplyTimeout = Integer.parseInt(args[++base]);
        } else if (args[base].equals("-T")) {
            trustmgr = args[++base];
        } else if (args[base].equals("-PrH")) {
            proxyHost = args[++base];
            String parts[] = StringUtils.split(proxyHost, ':');
            if (parts.length == 2) {
                proxyHost = parts[0];
                proxyPort = Integer.parseInt(parts[1]);
            }
        } else if (args[base].equals("-PrU")) {
            proxyUser = args[++base];
        } else if (args[base].equals("-PrP")) {
            proxyPassword = args[++base];
        } else if (args[base].equals("-#")) {
            printHash = true;
        } else {
            break;
        }
    }

    int remain = args.length - base;
    if (username != null) {
        minParams -= 2;
    }
    if (remain < minParams) // server, user, pass, remote, local [protocol]
    {
        System.err.println(USAGE);
        System.exit(1);
    }

    String server = args[base++];
    int port = 0;
    String parts[] = server.split(":");
    if (parts.length == 2) {
        server = parts[0];
        port = Integer.parseInt(parts[1]);
    }
    if (username == null) {
        username = args[base++];
        password = args[base++];
    }

    String remote = null;
    if (args.length - base > 0) {
        remote = args[base++];
    }

    String local = null;
    if (args.length - base > 0) {
        local = args[base++];
    }

    final FTPClient ftp;
    if (protocol == null) {
        if (proxyHost != null) {
            System.out.println("Using HTTP proxy server: " + proxyHost);
            ftp = new FTPHTTPClient(proxyHost, proxyPort, proxyUser, proxyPassword);
        } else {
            ftp = new FTPClient();
        }
    } else {
        FTPSClient ftps;
        if (protocol.equals("true")) {
            ftps = new FTPSClient(true);
        } else if (protocol.equals("false")) {
            ftps = new FTPSClient(false);
        } else {
            String prot[] = protocol.split(",");
            if (prot.length == 1) { // Just protocol
                ftps = new FTPSClient(protocol);
            } else { // protocol,true|false
                ftps = new FTPSClient(prot[0], Boolean.parseBoolean(prot[1]));
            }
        }
        ftp = ftps;
        if ("all".equals(trustmgr)) {
            ftps.setTrustManager(TrustManagerUtils.getAcceptAllTrustManager());
        } else if ("valid".equals(trustmgr)) {
            ftps.setTrustManager(TrustManagerUtils.getValidateServerCertificateTrustManager());
        } else if ("none".equals(trustmgr)) {
            ftps.setTrustManager(null);
        }
    }

    if (printHash) {
        ftp.setCopyStreamListener(createListener());
    }
    if (keepAliveTimeout >= 0) {
        ftp.setControlKeepAliveTimeout(keepAliveTimeout);
    }
    if (controlKeepAliveReplyTimeout >= 0) {
        ftp.setControlKeepAliveReplyTimeout(controlKeepAliveReplyTimeout);
    }
    ftp.setListHiddenFiles(hidden);

    // suppress login details
    ftp.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

    try {
        int reply;
        if (port > 0) {
            ftp.connect(server, port);
        } else {
            ftp.connect(server);
        }
        System.out.println("Connected to " + server + " on " + (port > 0 ? port : ftp.getDefaultPort()));

        // After connection attempt, you should check the reply code to verify
        // success.
        reply = ftp.getReplyCode();

        if (!FTPReply.isPositiveCompletion(reply)) {
            ftp.disconnect();
            System.err.println("FTP server refused connection.");
            System.exit(1);
        }
    } catch (IOException e) {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
        System.err.println("Could not connect to server.");
        e.printStackTrace();
        System.exit(1);
    }

    __main: try {
        if (!ftp.login(username, password)) {
            ftp.logout();
            error = true;
            break __main;
        }

        System.out.println("Remote system is " + ftp.getSystemType());

        if (binaryTransfer) {
            ftp.setFileType(FTP.BINARY_FILE_TYPE);
        } else {
            // in theory this should not be necessary as servers should default to ASCII
            // but they don't all do so - see NET-500
            ftp.setFileType(FTP.ASCII_FILE_TYPE);
        }

        // Use passive mode as default because most of us are
        // behind firewalls these days.
        if (localActive) {
            ftp.enterLocalActiveMode();
        } else {
            ftp.enterLocalPassiveMode();
        }

        ftp.setUseEPSVwithIPv4(useEpsvWithIPv4);

        if (storeFile) {
            InputStream input;

            input = new FileInputStream(local);

            ftp.storeFile(remote, input);

            input.close();
        } else if (listFiles) {
            if (lenient) {
                FTPClientConfig config = new FTPClientConfig();
                config.setLenientFutureDates(true);
                ftp.configure(config);
            }

            for (FTPFile f : ftp.listFiles(remote)) {
                System.out.println(f.getRawListing());
                System.out.println(f.toFormattedString());
            }
        } else if (mlsd) {
            for (FTPFile f : ftp.mlistDir(remote)) {
                System.out.println(f.getRawListing());
                System.out.println(f.toFormattedString());
            }
        } else if (mlst) {
            FTPFile f = ftp.mlistFile(remote);
            if (f != null) {
                System.out.println(f.toFormattedString());
            }
        } else if (listNames) {
            for (String s : ftp.listNames(remote)) {
                System.out.println(s);
            }
        } else if (feat) {
            // boolean feature check
            if (remote != null) { // See if the command is present
                if (ftp.hasFeature(remote)) {
                    System.out.println("Has feature: " + remote);
                } else {
                    if (FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
                        System.out.println("FEAT " + remote + " was not detected");
                    } else {
                        System.out.println("Command failed: " + ftp.getReplyString());
                    }
                }

                // Strings feature check
                String[] features = ftp.featureValues(remote);
                if (features != null) {
                    for (String f : features) {
                        System.out.println("FEAT " + remote + "=" + f + ".");
                    }
                } else {
                    if (FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
                        System.out.println("FEAT " + remote + " is not present");
                    } else {
                        System.out.println("Command failed: " + ftp.getReplyString());
                    }
                }
            } else {
                if (ftp.features()) {
                    //                        Command listener has already printed the output
                } else {
                    System.out.println("Failed: " + ftp.getReplyString());
                }
            }
        } else if (doCommand != null) {
            if (ftp.doCommand(doCommand, remote)) {
                //                  Command listener has already printed the output
                //                    for(String s : ftp.getReplyStrings()) {
                //                        System.out.println(s);
                //                    }
            } else {
                System.out.println("Failed: " + ftp.getReplyString());
            }
        } else {
            OutputStream output;

            output = new FileOutputStream(local);

            ftp.retrieveFile(remote, output);

            output.close();
        }

        ftp.noop(); // check that control connection is working OK

        ftp.logout();
    } catch (FTPConnectionClosedException e) {
        error = true;
        System.err.println("Server closed connection.");
        e.printStackTrace();
    } catch (IOException e) {
        error = true;
        e.printStackTrace();
    } finally {
        if (ftp.isConnected()) {
            try {
                ftp.disconnect();
            } catch (IOException f) {
                // do nothing
            }
        }
    }

    System.exit(error ? 1 : 0);
}

From source file:Main.java

public static Boolean writeToSDFile(String directory, String file_name, String text) {

    // Find the root of the external storage.
    // See/*from ww  w  .j  av  a  2 s.c o m*/
    // http://developer.android.com/guide/topics/data/data-storage.html#filesExternal

    File root = Environment.getExternalStorageDirectory();

    // See
    // http://stackoverflow.com/questions/3551821/android-write-to-sd-card-folder

    File dir = new File(root.getAbsolutePath() + "/" + directory);
    dir.mkdirs();
    File file = new File(dir, file_name);

    try {
        FileOutputStream f = new FileOutputStream(file);
        PrintWriter pw = new PrintWriter(f);
        pw.println(text);
        pw.flush();
        pw.close();
        f.close();
        // Log.v(TAG, "file written to sd card");
        return true;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        // Log.i(TAG, "******* File not found. Did you" +
        // " add a WRITE_EXTERNAL_STORAGE permission to the manifest?");
        return false;
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }
}

From source file:Main.java

public static boolean appendFile(String strThrift, String filePath) {
    PrintWriter out = null;/*from   w w  w  .  j  av  a  2  s.co  m*/
    try {
        out = new PrintWriter(new BufferedWriter(new FileWriter(filePath, true)));
        out.println(strThrift);
        out.flush();
        out.close();
    } catch (IOException e) {
        return false;
    }
    return true;

}

From source file:Main.java

/**
 * Get a string representation of the current stack state of all the active threads.
 *///  w ww  .  java  2 s  .c  o  m
public static String getStackTraces() {
    StringWriter stringWriter = new StringWriter(5000);
    printStackTraces(new PrintWriter(stringWriter));
    return stringWriter.toString();
}