Example usage for java.io DataOutputStream DataOutputStream

List of usage examples for java.io DataOutputStream DataOutputStream

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Introduction

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

Prototype

public DataOutputStream(OutputStream out)

Source Link

Document

Creates a new data output stream to write data to the specified underlying output stream.

Usage

From source file:tachyon.master.Image.java

/**
 * Write a new image to path. This method assumes having a lock on the master info.
 * //from  w w  w .j a v a 2  s .  c  o  m
 * @param info the master info to generate the image
 * @param path the new image path
 * @throws IOException
 */
public static void create(MasterInfo info, String path) throws IOException {
    String tPath = path + ".tmp";
    String parentFolder = path.substring(0, path.lastIndexOf(TachyonURI.SEPARATOR));
    LOG.info("Creating the image file: " + tPath);
    UnderFileSystem ufs = UnderFileSystem.get(path, info.getTachyonConf());
    if (!ufs.exists(parentFolder)) {
        LOG.info("Creating parent folder " + parentFolder);
        ufs.mkdirs(parentFolder, true);
    }
    OutputStream os = ufs.create(tPath);
    DataOutputStream imageOs = new DataOutputStream(os);
    ObjectWriter writer = JsonObject.createObjectMapper().writer();

    info.writeImage(writer, imageOs);
    imageOs.flush();
    imageOs.close();

    LOG.info("Succefully created the image file: " + tPath);
    ufs.delete(path, false);
    ufs.rename(tPath, path);
    ufs.delete(tPath, false);
    LOG.info("Renamed " + tPath + " to " + path);
    // safe to close, nothing created here with scope outside function
    ufs.close();
}

From source file:CounterApp.java

public int getCount() throws Exception {
    java.net.URL url = new java.net.URL(servletURL);
    java.net.URLConnection con = url.openConnection();
    if (sessionCookie != null) {
        con.setRequestProperty("cookie", sessionCookie);
    }// w  ww. j av  a 2 s  . c om
    con.setUseCaches(false);
    con.setDoOutput(true);
    con.setDoInput(true);
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(byteOut);
    out.flush();
    byte buf[] = byteOut.toByteArray();
    con.setRequestProperty("Content-type", "application/octet-stream");
    con.setRequestProperty("Content-length", "" + buf.length);
    DataOutputStream dataOut = new DataOutputStream(con.getOutputStream());
    dataOut.write(buf);
    dataOut.flush();
    dataOut.close();
    DataInputStream in = new DataInputStream(con.getInputStream());
    int count = in.readInt();
    in.close();
    if (sessionCookie == null) {
        String cookie = con.getHeaderField("set-cookie");
        if (cookie != null) {
            sessionCookie = parseCookie(cookie);
            System.out.println("Setting session ID=" + sessionCookie);
        }
    }

    return count;
}

From source file:ImageTransfer.java

public void javaToNative(Object object, TransferData transferData) {
    if (!checkImage(object) || !isSupportedType(transferData)) {
        DND.error(DND.ERROR_INVALID_DATA);
    }//  w w  w .j  av a2 s .co  m
    ImageData imdata = (ImageData) object;
    try {
        // write data to a byte array and then ask super to convert to
        // pMedium
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        DataOutputStream writeOut = new DataOutputStream(out);
        ImageLoader loader = new ImageLoader();
        loader.data = new ImageData[] { imdata };
        loader.save(writeOut, SWT.IMAGE_BMP);
        writeOut.close();
        byte[] buffer = out.toByteArray();
        super.javaToNative(buffer, transferData);
        out.close();
    } catch (IOException e) {
    }
}

From source file:org.jfree.chart.demo.SocketThread.java

@Override
public void run() {
    // TODO Auto-generated method stub
    try {/*from  w w w.  j ava 2  s  . co m*/
        ServerSocket ss = new ServerSocket(4444);
        Socket socket = null;
        while (Islive) {
            System.out.println("Started :) ");
            socket = ss.accept(); /*  */
            System.out.println("Got a client :) ");

            InputStream sin = socket.getInputStream();
            OutputStream sout = socket.getOutputStream();

            in = new DataInputStream(sin);
            out = new DataOutputStream(sout);

            String line = null;

            while (true) {
                line = in.readUTF(); /*    */
                System.out.println("line start sending  = " + line);
                out.writeUTF(data);
                out.flush();
                line = in.readUTF();
                System.out.println(line);
                if (line == "finish")
                    break;
                else {
                    out.writeUTF("ok");
                    out.flush();
                }
            }
        }
        out.writeUTF("finish");
        out.flush();

        in.close();
        out.close();
        socket.close();
    } catch (Exception x) {

        errors += x.toString() + " ;\n";
        error_flag = true;
    }

}

From source file:io.lavagna.model.ProjectMetadata.java

private static String hash(SortedMap<Integer, CardLabel> labels,
        SortedMap<Integer, LabelListValueWithMetadata> labelListValues,
        Map<ColumnDefinition, BoardColumnDefinition> columnsDefinition) {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream daos = new DataOutputStream(baos);

    try {/*from w  w  w .j a va2  s.  com*/

        for (CardLabel cl : labels.values()) {
            hash(daos, cl);
        }

        for (LabelListValueWithMetadata l : labelListValues.values()) {
            hash(daos, l);
        }

        for (BoardColumnDefinition b : columnsDefinition.values()) {
            hash(daos, b);
        }

        daos.flush();
        return DigestUtils.sha256Hex(new ByteArrayInputStream(baos.toByteArray()));
    } catch (IOException e) {
        throw new IllegalStateException(e);
    }
}

From source file:info.magnolia.cms.exchange.simple.Transporter.java

/**
 * http form multipart form post/*from  w ww .j  a  v a 2 s  . c  om*/
 * @param connection
 * @param activationContent
 * @throws ExchangeException
 */
public static void transport(URLConnection connection, ActivationContent activationContent)
        throws ExchangeException {
    FileInputStream fis = null;
    DataOutputStream outStream = null;
    try {
        byte[] buffer = new byte[BUFFER_SIZE];
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setUseCaches(false);
        connection.setRequestProperty("Content-type", "multipart/form-data; boundary=" + BOUNDARY);
        connection.setRequestProperty("Cache-Control", "no-cache");

        outStream = new DataOutputStream(connection.getOutputStream());
        outStream.writeBytes("--" + BOUNDARY + "\r\n");

        // set all resources from activationContent
        Iterator fileNameIterator = activationContent.getFiles().keySet().iterator();
        while (fileNameIterator.hasNext()) {
            String fileName = (String) fileNameIterator.next();
            fis = new FileInputStream(activationContent.getFile(fileName));
            outStream.writeBytes("content-disposition: form-data; name=\"" + fileName + "\"; filename=\""
                    + fileName + "\"\r\n");
            outStream.writeBytes("content-type: application/octet-stream" + "\r\n\r\n");
            while (true) {
                synchronized (buffer) {
                    int amountRead = fis.read(buffer);
                    if (amountRead == -1) {
                        break;
                    }
                    outStream.write(buffer, 0, amountRead);
                }
            }
            fis.close();
            outStream.writeBytes("\r\n" + "--" + BOUNDARY + "\r\n");
        }
        outStream.flush();
        outStream.close();

        log.debug("Activation content sent as multipart/form-data");
    } catch (Exception e) {
        throw new ExchangeException(
                "Simple exchange transport failed: " + ClassUtils.getShortClassName(e.getClass()), e);
    } finally {
        if (fis != null) {
            try {
                fis.close();
            } catch (IOException e) {
                log.error("Exception caught", e);
            }
        }
        if (outStream != null) {
            try {
                outStream.close();
            } catch (IOException e) {
                log.error("Exception caught", e);
            }
        }
    }

}

From source file:jp.xii.relog.customlibrary.DoSuCommand.java

public boolean init() {
    boolean ret = false;

    try {/*from w  w w . j  a  va 2 s  .c  o  m*/
        //su
        _process = Runtime.getRuntime().exec("su");

        //?
        _outputStream = new DataOutputStream(_process.getOutputStream());
        _inputStream = new DataInputStream(_process.getInputStream());

        //???
        ret = true;
        //         if(!write("su -v\n")){
        //         }else{
        //            String[] results = read().split("\n");
        //            for (String line : results) {
        //               if(line.length() > 0){
        //                  //???????
        //                  ret = true;
        //               }
        //            }
        //         }
    } catch (IOException e) {
    }

    return ret;
}

From source file:com.scaleunlimited.classify.vectors.WritableComparableVectorTest.java

@Test
public void testToFromStream() throws Exception {
    WritableComparableVector vector1 = new WritableComparableVector(makeVector());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);
    vector1.write(dos);//from   w  ww  .j  ava2  s.c om
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    DataInputStream dis = new DataInputStream(bais);
    WritableComparableVector vector2 = new WritableComparableVector(null);
    vector2.readFields(dis);
    compareVectors(vector1.getVector(), vector2.getVector());
}

From source file:com.hippo.httpclient.JsonPoster.java

@Override
public void onOutput(HttpURLConnection conn) throws Exception {
    super.onOutput(conn);

    DataOutputStream out = new DataOutputStream(conn.getOutputStream());
    out.write(mJSON.toString().getBytes("utf-8"));
    out.flush();/*from   ww  w .  j a va2  s  .  c o m*/
    out.close();
}

From source file:IOUtilities.java

/**
 * Returns a DataOutputStream object based on the given OutputStream.
 * If the given OutputStream is already an instance of DataOutputStream,
 * the same (given) OutputStream is casted to DataOutputStream and returned,
 * otherwise, a new wrapper DataOutputStream is created and returned.
 *///  w w w.  j  av a 2  s  . c o  m

public static DataOutputStream maybeCreateDataOutputStream(OutputStream out) {
    if (out instanceof DataOutputStream)
        return (DataOutputStream) out;
    else
        return new DataOutputStream(out);
}