Example usage for java.io DataOutputStream write

Introduction

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

Prototype

public synchronized void write(int b) throws IOException 

Source Link

Document

Writes the specified byte (the low eight bits of the argument b) to the underlying output stream.

Usage

From source file:com.vimc.ahttp.HurlWorker.java

private void writeDataStart(DataOutputStream out, String paramaName, String fileName, String boundary)
        throws IOException {
    StringBuffer sb = new StringBuffer();
    sb.append(TWO_HYPHENS);//from w  ww  .  j ava  2s  .c  om
    sb.append(boundary);
    sb.append(LINE_END);
    sb.append("Content-Disposition: form-data; name=\"" + paramaName + "\"; filename=\"" + fileName + "\""
            + LINE_END);
    sb.append("Content-Type: application/octet-stream; charset=" + "utf-8" + LINE_END);
    sb.append(LINE_END);
    out.write(sb.toString().getBytes());
}

---

From source file:com.kitware.tangoproject.paraviewtangorecorder.PointCloudActivity.java

private void writePointCloudToFile(TangoXyzIjData xyzIj, byte[] buffer,
        ArrayList<TangoCoordinateFramePair> framePairs) {

    ByteBuffer myBuffer = ByteBuffer.allocate(xyzIj.xyzCount * 3 * 4);
    myBuffer.order(ByteOrder.LITTLE_ENDIAN);
    myBuffer.put(buffer, xyzIj.xyzParcelFileDescriptorOffset, myBuffer.capacity());

    File mainDir = new File(mMainDirPath);
    if (!mainDir.exists()) {
        boolean created = mainDir.mkdir();
        if (created) {
            Log.i(TAG, "Folder: \"" + mMainDirPath + "\" created\n");
        }/*from ww w .j  a v  a2 s .  c  o m*/
    }

    File dir = new File(mSaveDirAbsPath);
    if (!dir.exists()) {
        boolean created = dir.mkdir();
        if (created) {
            Log.i(TAG, "Folder: \"" + mSaveDirAbsPath + "\" created\n");
        }
    }

    mFilename = "pc_" + mNowTimeString + "_" + String.format("%03d", mNumberOfFilesWritten) + ".vtk";
    mFilenameBuffer.add(mSaveDirAbsPath + mFilename);
    File file = new File(dir, mFilename);

    try {

        DataOutputStream out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file)));

        out.write(("# vtk DataFile Version 3.0\n" + "vtk output\n" + "BINARY\n" + "DATASET POLYDATA\n"
                + "POINTS " + xyzIj.xyzCount + " float\n").getBytes());

        for (int i = 0; i < xyzIj.xyzCount; i++) {

            out.writeFloat(myBuffer.getFloat(3 * i * 4));
            out.writeFloat(myBuffer.getFloat((3 * i + 1) * 4));
            out.writeFloat(myBuffer.getFloat((3 * i + 2) * 4));
        }

        out.write(("\nVERTICES 1 " + String.valueOf(xyzIj.xyzCount + 1) + "\n").getBytes());
        out.writeInt(xyzIj.xyzCount);
        for (int i = 0; i < xyzIj.xyzCount; i++) {
            out.writeInt(i);
        }

        out.write(("\nFIELD FieldData 1\n" + "timestamp 1 1 float\n").getBytes());
        out.writeFloat((float) xyzIj.timestamp);

        out.close();
        mNumberOfFilesWritten++;
        mTimeToTakeSnap = false;

    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:com.kitware.tangoproject.paraviewtangorecorder.PointCloudActivity.java

private void writePoseToFile(int numPoints) {

    File mainDir = new File(mMainDirPath);
    if (!mainDir.exists()) {
        boolean created = mainDir.mkdir();
        if (created) {
            Log.i(TAG, "Folder: \"" + mMainDirPath + "\" created\n");
        }//from w w w .j  a  v  a2s  .co  m
    }

    File dir = new File(mSaveDirAbsPath);
    if (!dir.exists()) {
        boolean created = dir.mkdir();
        if (created) {
            Log.i(TAG, "Folder: \"" + mSaveDirAbsPath + "\" created\n");
        }
    }
    String poseFileName = "pc_" + mNowTimeString + "_poses.vtk";
    mFilenameBuffer.add(mSaveDirAbsPath + poseFileName);
    File file = new File(dir, poseFileName);

    try {
        DataOutputStream out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file)));

        out.write(("# vtk DataFile Version 3.0\n" + "vtk output\n" + "BINARY\n" + "DATASET POLYDATA\n"
                + "POINTS " + numPoints + " float\n").getBytes());

        for (int i = 0; i < numPoints; i++) {
            out.writeFloat(mPosePositionBuffer.get(i)[0]);
            out.writeFloat(mPosePositionBuffer.get(i)[1]);
            out.writeFloat(mPosePositionBuffer.get(i)[2]);
        }

        out.write(("\nLINES 1 " + String.valueOf(numPoints + 1) + "\n").getBytes());
        out.writeInt(numPoints);
        for (int i = 0; i < numPoints; i++) {
            out.writeInt(i);
        }

        out.write(("\nPOINT_DATA " + String.valueOf(numPoints) + "\n" + "FIELD FieldData 2\n" + "orientation 4 "
                + String.valueOf(numPoints) + " float\n").getBytes());

        for (int i = 0; i < numPoints; i++) {
            out.writeFloat(mPoseOrientationBuffer.get(i)[0]);
            out.writeFloat(mPoseOrientationBuffer.get(i)[1]);
            out.writeFloat(mPoseOrientationBuffer.get(i)[2]);
            out.writeFloat(mPoseOrientationBuffer.get(i)[3]);
        }

        out.write(("\ntimestamp 1 " + String.valueOf(numPoints) + " float\n").getBytes());
        for (int i = 0; i < numPoints; i++) {
            out.writeFloat(mPoseTimestampBuffer.get(i));
        }

        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:com.chaosinmotion.securechat.server.messages.NotificationSocket.java

/**
 * Internal method for sending a message to the specified device. This
 * encodes the message as a binary array and transmits it as a single 
 * packet to the listening device. This allows users to receive messages
 * during chat as soon as we are able to, for (more or less) just in time
 * messaging.//ww w  . j  a  va  2s .  c  om
 * 
 * The packet returned here is similar to the packet returned by the
 * getmessages api, except we serialize as binary.
 * 
 * @param messageid
 * @param senderid
 * @param sendername
 * @param ts
 * @param message
 * @throws IOException 
 */
void sendMessage(int messageid, int senderid, String sendername, boolean toflag, Timestamp ts, byte[] message)
        throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);

    /*
     * Encode. First byte is 0x20
     */

    String date;
    synchronized (format) {
        date = format.format(ts);
    }

    /*
     * Formulate packet in expected format
     */
    dos.writeByte(0x20); // marker
    dos.writeBoolean(toflag);
    dos.writeInt(messageid);
    dos.writeInt(senderid);
    dos.writeUTF(date);
    dos.writeUTF(sendername);
    dos.writeInt(message.length);
    dos.write(message);

    /*
     * Flush and write packet to device. Our protocol does not depend on
     * the device actually receiving this message, as we wait until the
     * device deletes the messages by a separate command.
     */
    dos.flush();
    out.writeData(baos.toByteArray());
}

---

From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileATimes(final DataOutput header) throws IOException {
    int numAccessDates = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasAccessDate()) {
            ++numAccessDates;/*from ww  w .java  2s. c om*/
        }
    }
    if (numAccessDates > 0) {
        header.write(NID.kATime);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numAccessDates != files.size()) {
            out.write(0);
            final BitSet aTimes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                aTimes.set(i, files.get(i).getHasAccessDate());
            }
            writeBits(out, aTimes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasAccessDate()) {
                out.writeLong(Long.reverseBytes(SevenZArchiveEntry.javaTimeToNtfsTime(entry.getAccessDate())));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

---

From source file:com.linkedin.pinot.core.common.datatable.DataTableImplV2.java

private byte[] serializeMetadata() throws IOException {
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    DataOutputStream dataOutputStream = new DataOutputStream(byteArrayOutputStream);

    dataOutputStream.writeInt(_metadata.size());
    for (Entry<String, String> entry : _metadata.entrySet()) {
        byte[] keyBytes = entry.getKey().getBytes(UTF_8);
        dataOutputStream.writeInt(keyBytes.length);
        dataOutputStream.write(keyBytes);

        byte[] valueBytes = entry.getValue().getBytes(UTF_8);
        dataOutputStream.writeInt(valueBytes.length);
        dataOutputStream.write(valueBytes);
    }/*from   w w w.j a va2 s .  c om*/

    return byteArrayOutputStream.toByteArray();
}

---

From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileCTimes(final DataOutput header) throws IOException {
    int numCreationDates = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasCreationDate()) {
            ++numCreationDates;// w w w .j a  v a  2s .c o  m
        }
    }
    if (numCreationDates > 0) {
        header.write(NID.kCTime);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numCreationDates != files.size()) {
            out.write(0);
            final BitSet cTimes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                cTimes.set(i, files.get(i).getHasCreationDate());
            }
            writeBits(out, cTimes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasCreationDate()) {
                out.writeLong(
                        Long.reverseBytes(SevenZArchiveEntry.javaTimeToNtfsTime(entry.getCreationDate())));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

---

From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileWindowsAttributes(final DataOutput header) throws IOException {
    int numWindowsAttributes = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasWindowsAttributes()) {
            ++numWindowsAttributes;//  ww w.  j a  v a  2  s.  c o m
        }
    }
    if (numWindowsAttributes > 0) {
        header.write(NID.kWinAttributes);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numWindowsAttributes != files.size()) {
            out.write(0);
            final BitSet attributes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                attributes.set(i, files.get(i).getHasWindowsAttributes());
            }
            writeBits(out, attributes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasWindowsAttributes()) {
                out.writeInt(Integer.reverseBytes(entry.getWindowsAttributes()));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

---

From source file:bobs.is.compress.sevenzip.SevenZOutputFile.java

private void writeFileMTimes(final DataOutput header) throws IOException {
    int numLastModifiedDates = 0;
    for (final SevenZArchiveEntry entry : files) {
        if (entry.getHasLastModifiedDate()) {
            ++numLastModifiedDates;//from  w  w w. ja  v a 2s  .  c  o  m
        }
    }
    if (numLastModifiedDates > 0) {
        header.write(NID.kMTime);

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        final DataOutputStream out = new DataOutputStream(baos);
        if (numLastModifiedDates != files.size()) {
            out.write(0);
            final BitSet mTimes = new BitSet(files.size());
            for (int i = 0; i < files.size(); i++) {
                mTimes.set(i, files.get(i).getHasLastModifiedDate());
            }
            writeBits(out, mTimes, files.size());
        } else {
            out.write(1); // "allAreDefined" == true
        }
        out.write(0);
        for (final SevenZArchiveEntry entry : files) {
            if (entry.getHasLastModifiedDate()) {
                out.writeLong(
                        Long.reverseBytes(SevenZArchiveEntry.javaTimeToNtfsTime(entry.getLastModifiedDate())));
            }
        }
        out.flush();
        final byte[] contents = baos.toByteArray();
        writeUint64(header, contents.length);
        header.write(contents);
    }
}

---

From source file:org.fenixedu.parking.ui.Action.ParkingManagerDispatchAction.java

public ActionForward showPhoto(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    Party party = FenixFramework.getDomainObject(request.getParameter("personID"));
    if (party.isPerson()) {
        Person person = (Person) party;//from w  w w . ja  v  a  2 s  . c o m
        Photograph personalPhoto = person.getPersonalPhoto();
        if (personalPhoto != null) {
            try {
                byte[] avatar = personalPhoto.getDefaultAvatar();
                response.setContentType(ContentType.PNG.getMimeType());
                DataOutputStream dos = new DataOutputStream(response.getOutputStream());
                dos.write(avatar);
                dos.close();
            } catch (java.io.IOException e) {
                throw new FenixActionException(e);
            }
        }
    }
    return null;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• »