Example usage for java.nio ByteBuffer putLong

List of usage examples for java.nio ByteBuffer putLong

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Introduction

In this page you can find the example usage for java.nio ByteBuffer putLong.

Prototype

public abstract ByteBuffer putLong(long value);

Source Link

Document

Writes the given long to the current position and increases the position by 8.

Usage

From source file:edu.tsinghua.lumaqq.qq.packets.out._05.TransferPacket.java

@Override
protected void putBody(ByteBuffer buf) {
    if (!requestSend) {
        // 2. 8/*w  w w . ja  va  2s .  c  o m*/
        buf.putLong(0x0100000000000000L);
        // 3. session id, 4           
        buf.putInt(sessionId);
        // 4
        buf.putInt(0);
        // ??
        if (dataReply) {
            buf.putChar((char) 0x0001);
            buf.put((byte) 0x02);
        } else {
            buf.putChar((char) 0x04);
            buf.putInt(0);
        }
    } else if (data) {
        // 2. 8??0x1000000000000001?
        if (last)
            buf.putLong(0x0100000000000000L);
        else
            buf.putLong(0x0100000000000001L);
        // 3. session id, 4
        buf.putInt(sessionId);
        // 4. 4
        buf.putInt(0);
        // 5. ?2
        buf.putChar((char) fragment.length);
        // 6. ?
        buf.put(fragment);
    } else {
        // 2. 8
        buf.putLong(0x0100000000000000L);
        // 3. session id, 4
        buf.putInt(sessionId);
        // 4. 4
        buf.putInt(0);
        // 5. ???2
        buf.putChar((char) 0);
        // 6. 25?
        int pos = buf.position();
        buf.putChar((char) 0);
        // 7. md5
        buf.put(md5);
        // 8. ??md5
        byte[] fileNameBytes = fileName.getBytes();
        buf.put(md5(fileNameBytes));
        // 9. 4
        buf.putInt(imageLength);
        // 10. ??2
        buf.putChar((char) fileName.length());
        // 11. ??
        buf.put(fileNameBytes);
        // 12. 8
        buf.putLong(0);

        char len = (char) (buf.position() - pos);
        buf.putChar(pos - 2, len);
        buf.putChar(pos, len);
    }
}

From source file:voldemort.store.cachestore.impl.LogChannel.java

private void writeIndexBlock(long keyOffset2Len, int record, long dataOffset2Len, short nodeId,
        long block2Version, byte status) throws IOException {
    long pos = OFFSET + (long) record * RECORD_SIZE;
    checkFileSize(pos, RECORD_SIZE);/*w  w  w  .ja v a  2s . co  m*/
    ByteBuffer buf = ByteBuffer.allocate(RECORD_SIZE);
    buf.put(status);
    buf.putLong(keyOffset2Len);
    buf.putLong(dataOffset2Len);
    buf.putLong(block2Version);
    buf.putShort(nodeId);
    buf.flip();
    getIndexChannel().write(buf, pos);
}

From source file:com.btoddb.fastpersitentqueue.flume.FpqChannelTest.java

@Test
public void testThreading() throws Exception {
    final int numEntries = 1000;
    final int numPushers = 4;
    final int numPoppers = 4;
    final int entrySize = 1000;
    channel.setMaxTransactionSize(2000);
    final int popBatchSize = 100;
    channel.setMaxMemorySegmentSizeInBytes(10000000);
    channel.setMaxJournalFileSize(10000000);
    channel.setMaxJournalDurationInMs(30000);
    channel.setFlushPeriodInMs(1000);/*from www .j  a  v  a 2  s .co  m*/
    channel.setNumberOfFlushWorkers(4);

    final Random pushRand = new Random(1000L);
    final Random popRand = new Random(1000000L);
    final AtomicInteger pusherFinishCount = new AtomicInteger();
    final AtomicInteger numPops = new AtomicInteger();
    final AtomicLong counter = new AtomicLong();
    final AtomicLong pushSum = new AtomicLong();
    final AtomicLong popSum = new AtomicLong();

    channel.start();

    ExecutorService execSrvc = Executors.newFixedThreadPool(numPushers + numPoppers);

    Set<Future> futures = new HashSet<Future>();

    // start pushing
    for (int i = 0; i < numPushers; i++) {
        Future future = execSrvc.submit(new Runnable() {
            @Override
            public void run() {
                for (int i = 0; i < numEntries; i++) {
                    try {
                        long x = counter.getAndIncrement();
                        pushSum.addAndGet(x);
                        ByteBuffer bb = ByteBuffer.wrap(new byte[entrySize]);
                        bb.putLong(x);

                        Transaction tx = channel.getTransaction();
                        tx.begin();
                        MyEvent event1 = new MyEvent();
                        event1.addHeader("x", String.valueOf(x)).setBody(new byte[numEntries - 8]); // take out size of long
                        channel.put(event1);
                        tx.commit();
                        tx.close();

                        Thread.sleep(pushRand.nextInt(5));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
                pusherFinishCount.incrementAndGet();
            }
        });
        futures.add(future);
    }

    // start popping
    for (int i = 0; i < numPoppers; i++) {
        Future future = execSrvc.submit(new Runnable() {
            @Override
            public void run() {
                while (pusherFinishCount.get() < numPushers || !channel.isEmpty()) {
                    try {
                        Transaction tx = channel.getTransaction();
                        tx.begin();

                        Event event;
                        int count = popBatchSize;
                        while (null != (event = channel.take()) && count-- > 0) {
                            popSum.addAndGet(Long.valueOf(event.getHeaders().get("x")));
                            numPops.incrementAndGet();
                        }

                        tx.commit();
                        tx.close();

                        Thread.sleep(popRand.nextInt(10));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        });
        futures.add(future);
    }

    boolean finished = false;
    while (!finished) {
        try {
            for (Future f : futures) {
                f.get();
            }
            finished = true;
        } catch (InterruptedException e) {
            // ignore
            Thread.interrupted();
        }
    }

    assertThat(numPops.get(), is(numEntries * numPushers));
    assertThat(channel.isEmpty(), is(true));
    assertThat(pushSum.get(), is(popSum.get()));
}

From source file:com.sm.connector.server.ServerStore.java

private void writeIndexBlock(CacheBlock<byte[]> block, long keyOffset2Len, FileChannel channel)
        throws IOException {
    long pos = OFFSET + (long) block.getRecordNo() * RECORD_SIZE;
    checkFileSize(pos, RECORD_SIZE);//from   ww  w .j  a  v a  2s  .c om
    ByteBuffer buf = ByteBuffer.allocate(RECORD_SIZE);
    buf.put(block.getStatus());
    buf.putLong(keyOffset2Len);
    buf.putLong(block.getDataOffset2Len());
    buf.putLong(block.getBlock2Version());
    buf.putShort(block.getNode());
    buf.flip();
    channel.write(buf, pos);
}

From source file:io.v.android.libs.discovery.ble.BlePlugin.java

private void readvertise() {
    if (advertiseCallback != null) {
        bluetoothLeAdvertise.stopAdvertising(advertiseCallback);
        advertiseCallback = null;//from   w w  w .  ja  v a  2s. c o  m
    }
    if (advertisements.size() == 0) {
        return;
    }

    int hash = advertisements.hashCode();

    AdvertiseData.Builder builder = new AdvertiseData.Builder();
    ByteBuffer buf = ByteBuffer.allocate(9);
    buf.put((byte) 8);
    buf.putLong(hash);
    builder.addManufacturerData(1001, buf.array());
    AdvertiseSettings.Builder settingsBuilder = new AdvertiseSettings.Builder();
    settingsBuilder.setAdvertiseMode(AdvertiseSettings.ADVERTISE_MODE_LOW_LATENCY);
    settingsBuilder.setConnectable(true);
    advertiseCallback = new AdvertiseCallback() {
        @Override
        public void onStartSuccess(AdvertiseSettings settingsInEffect) {
            Log.i("vanadium", "Successfully started " + settingsInEffect);
        }

        @Override
        public void onStartFailure(int errorCode) {
            Log.i("vanadium", "Failed to start advertising " + errorCode);
        }
    };
    bluetoothLeAdvertise.startAdvertising(settingsBuilder.build(), builder.build(), advertiseCallback);
}

From source file:mobisocial.musubi.nearby.GpsBroadcastTask.java

@Override
protected Void doInBackground(Void... params) {
    if (DBG)/*from ww w  .  j a  v a  2  s  . c  o m*/
        Log.d(TAG, "Uploading group for nearby gps...");
    while (!mmLocationScanComplete) {
        synchronized (mmLocationResult) {
            if (!mmLocationScanComplete) {
                try {
                    if (DBG)
                        Log.d(TAG, "Waiting for location results...");
                    mmLocationResult.wait();
                } catch (InterruptedException e) {
                }
            }
        }
    }
    if (DBG)
        Log.d(TAG, "Got location " + mmLocation);
    if (isCancelled()) {
        return null;
    }

    try {
        SQLiteOpenHelper db = App.getDatabaseSource(mContext);
        FeedManager fm = new FeedManager(db);
        IdentitiesManager im = new IdentitiesManager(db);
        String group_name = UiUtil.getFeedNameFromMembersList(fm, mFeed);
        byte[] group_capability = mFeed.capability_;
        List<MIdentity> owned = im.getOwnedIdentities();
        MIdentity sharer = null;
        for (MIdentity i : owned) {
            if (i.type_ != Authority.Local) {
                sharer = i;
                break;
            }
        }
        String sharer_name = UiUtil.safeNameForIdentity(sharer);
        byte[] sharer_hash = sharer.principalHash_;

        byte[] thumbnail = fm.getFeedThumbnailForId(mFeed.id_);
        if (thumbnail == null)
            thumbnail = im.getMusubiThumbnail(sharer) != null ? sharer.musubiThumbnail_
                    : im.getThumbnail(sharer);
        int member_count = fm.getFeedMemberCount(mFeed.id_);

        JSONObject group = new JSONObject();
        group.put("group_name", group_name);
        group.put("group_capability", Base64.encodeToString(group_capability, Base64.DEFAULT));
        group.put("sharer_name", sharer_name);
        group.put("sharer_type", sharer.type_.ordinal());
        group.put("sharer_hash", Base64.encodeToString(sharer_hash, Base64.DEFAULT));
        if (thumbnail != null)
            group.put("thumbnail", Base64.encodeToString(thumbnail, Base64.DEFAULT));
        group.put("member_count", member_count);

        byte[] key = Util.sha256(("happysalt621" + mmPassword).getBytes());
        byte[] data = group.toString().getBytes();
        byte[] iv = new byte[16];
        new SecureRandom().nextBytes(iv);

        byte[] partial_enc_data;
        Cipher cipher;
        AlgorithmParameterSpec iv_spec;
        SecretKeySpec sks;
        try {
            cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
        } catch (Exception e) {
            throw new RuntimeException("AES not supported on this platform", e);
        }
        try {
            iv_spec = new IvParameterSpec(iv);
            sks = new SecretKeySpec(key, "AES");
            cipher.init(Cipher.ENCRYPT_MODE, sks, iv_spec);
        } catch (Exception e) {
            throw new RuntimeException("bad iv or key", e);
        }
        try {
            partial_enc_data = cipher.doFinal(data);
        } catch (Exception e) {
            throw new RuntimeException("body encryption failed", e);
        }

        TByteArrayList bal = new TByteArrayList(iv.length + partial_enc_data.length);
        bal.add(iv);
        bal.add(partial_enc_data);
        byte[] enc_data = bal.toArray();

        if (DBG)
            Log.d(TAG, "Posting to gps server...");

        Uri uri = Uri.parse("http://bumblebee.musubi.us:6253/nearbyapi/0/sharegroup");

        StringBuffer sb = new StringBuffer();
        DefaultHttpClient client = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(uri.toString());
        httpPost.addHeader("Content-Type", "application/json");
        JSONArray buckets = new JSONArray();
        JSONObject descriptor = new JSONObject();

        double lat = mmLocation.getLatitude();
        double lng = mmLocation.getLongitude();
        long[] coords = GridHandler.getGridCoords(lat, lng, 5280 / 2);
        for (long c : coords) {
            MessageDigest md;
            try {
                byte[] obfuscate = ("sadsalt193s" + mmPassword).getBytes();
                md = MessageDigest.getInstance("SHA-256");
                ByteBuffer b = ByteBuffer.allocate(8 + obfuscate.length);
                b.putLong(c);
                b.put(obfuscate);
                String secret_bucket = Base64.encodeToString(md.digest(b.array()), Base64.DEFAULT);
                buckets.put(buckets.length(), secret_bucket);
            } catch (NoSuchAlgorithmException e) {
                throw new RuntimeException("your platform does not support sha256", e);
            }
        }
        descriptor.put("buckets", buckets);
        descriptor.put("data", Base64.encodeToString(enc_data, Base64.DEFAULT));
        descriptor.put("expiration", new Date().getTime() + 1000 * 60 * 60);

        httpPost.setEntity(new StringEntity(descriptor.toString()));
        try {
            HttpResponse execute = client.execute(httpPost);
            InputStream content = execute.getEntity().getContent();
            BufferedReader buffer = new BufferedReader(new InputStreamReader(content));
            String s = "";
            while ((s = buffer.readLine()) != null) {
                if (isCancelled()) {
                    return null;
                }
                sb.append(s);
            }
            if (sb.toString().equals("ok"))
                mSucceeded = true;
            else {
                System.err.println(sb);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        //TODO: report failures etc
    } catch (Exception e) {
        Log.e(TAG, "Failed to broadcast group", e);
    }
    return null;
}

From source file:org.cosmo.common.util.Util.java

public static short[] longToShorts2(long value) {
    short[] shorts = new short[4];
    ByteBuffer b = ByteBuffer.allocate(8);
    b.putLong(value);

    b.rewind();/*from   w ww  .jav  a 2  s . c  o m*/
    shorts[0] = b.getShort();
    shorts[1] = b.getShort();
    shorts[2] = b.getShort();
    shorts[3] = b.getShort();
    return shorts;

}

From source file:org.apache.hadoop.hbase.filter.DirectoryRowFilter.java

/**
 * Serialize the filter//  w w  w. ja v  a2s  . c o  m
 */
@Override
public byte[] toByteArray() throws IOException {

    ByteBuffer bb = ByteBuffer.wrap(new byte[4 * 8]).order(ByteOrder.BIG_ENDIAN);

    bb.putLong(instanceModulus);
    bb.putLong(instanceRemainder);
    bb.putLong(threadModulus);
    bb.putLong(threadRemainder);

    return bb.array();
}

From source file:org.jboss.dashboard.workspace.WorkspacesManager.java

/**
 * Generate a unique workspace identifier
 *///from  w w w .j  a v  a  2s .com
public synchronized String generateWorkspaceId() throws Exception {
    UUID uuid = UUID.randomUUID();
    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());
    return Base64.encodeBase64URLSafeString(bb.array());
}

From source file:com.openteach.diamond.network.waverider.network.Packet.java

/**
 * ByteBuffer/*from   w w w .j a  v  a2 s.  c  om*/
 * @return
 */
public ByteBuffer marshall() {
    int size = getSize();
    ByteBuffer buffer = ByteBuffer.allocate(size);
    buffer.put(magic.getBytes());
    buffer.putLong(sequence);
    buffer.putLong(type);
    buffer.putInt(size);
    buffer.put(payLoad);
    buffer.flip();
    return buffer;
}