Example usage for com.google.common.primitives Longs fromByteArray

Introduction

In this page you can find the example usage for com.google.common.primitives Longs fromByteArray.

Prototype

public static long fromByteArray(byte[] bytes) 

Source Link

Document

Returns the long value whose big-endian representation is stored in the first 8 bytes of bytes ; equivalent to ByteBuffer.wrap(bytes).getLong() .

Usage

From source file:com.outerspacecat.util.Cookies.java

/**
 * Parses a session cookie previously generated by
 * {@link #generateSessionCookie(byte[], byte[], byte[], byte[])}.
 * //from  ww w  .  j  a va  2s  . c o m
 * @param key the key that was used to create the cookie. Must be non
 *        {@code null}.
 * @param sessionKey the session key that was used to create the cookie. Must
 *        be non {@code null}.
 * @param cookie the cookie value to parse. Must be non {@code null}.
 * @return a tuple containing the id and data used to create the cookie, along
 *         with a timestamp of when the cookie was created. Never {@code null}
 *         , all tuple values are non {@code null}.
 * @throws IOException if {@code cookie} is not a valid cookie or if it was
 *         not created using {@code key} and {@code sessionKey}.
 */
public static Tuple3<byte[], byte[], Instant> parseSessionCookie(final byte[] key, final byte[] sessionKey,
        final CharSequence cookie) throws IOException {
    Preconditions.checkNotNull(key, "key required");
    Preconditions.checkNotNull(sessionKey, "sessionKey required");
    Preconditions.checkNotNull(cookie, "cookie required");

    String[] parts = cookie.toString().split("\\$");
    if (parts[0].equals("1")) {
        if (parts.length != 6)
            throw new IllegalArgumentException("invalid cookie: " + cookie);

        if (parts[1].length() % 2 != 0 || !HEX_PATTERN.matcher(parts[1]).matches() || parts[2].length() != 16
                || !HEX_PATTERN.matcher(parts[2]).matches() || parts[3].length() != 32
                || !HEX_PATTERN.matcher(parts[3]).matches() || parts[4].length() % 2 != 0
                || !HEX_PATTERN.matcher(parts[4]).matches() || parts[5].length() % 2 != 0
                || !HEX_PATTERN.matcher(parts[5]).matches())
            throw new IOException("invalid cookie: " + cookie);

        byte[] id = Utils.fromHex(parts[1].toCharArray());

        byte[] created = Utils.fromHex(parts[2].toCharArray());

        byte[] k = Utils.hmacSha1(Bytes.concat(id, created), key);

        byte[] iv = Utils.fromHex(parts[3].toCharArray());

        byte[] data = Utils.decryptAes128Cbc(Utils.fromHex(parts[4].toCharArray()), Utils.md5(k), iv);

        byte[] hmac = Utils.hmacSha1(Bytes.concat(id, created, data, sessionKey), k);

        if (!Utils.constantEquals(parts[5], new String(Utils.toHex(hmac))))
            throw new IOException("cookie tampering detected: " + cookie);

        return Tuple3.of(id, data, Instant.ofEpochMilli(Longs.fromByteArray(created)));
    } else {
        throw new IOException("invalid cookie: " + cookie);
    }
}

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From source file:pl.coffeepower.blog.messagebus.MessageBusTestHelper.java

Future<Boolean> createSubscriberFuture(final String cloudNode, final Engine engine) {
    return cloud.node(cloudNode).submit((Callable<Boolean> & Serializable) () -> {
        Fixtures fixtures = new Fixtures();
        AtomicBoolean state = new AtomicBoolean(true);
        AtomicLong lastReceived = new AtomicLong();
        AtomicLong messagesCounter = new AtomicLong();
        Subscriber subscriber = Guice.createInjector(Stage.PRODUCTION, new TestConfigurationModule(),
                new BytesEventModule(), engine.getModule()).getInstance(Subscriber.class);
        subscriber.register((data, length) -> {
            messagesCounter.incrementAndGet();
            if (state.get()) {
                long prevReceivedValue = lastReceived.getAndSet(Longs.fromByteArray(data));
                long lastReceivedValue = lastReceived.get();
                if (lastReceivedValue != (prevReceivedValue + 1)
                        || data[length - 1] != fixtures.getLastAdditionalDataByte()) {
                    state.set(false);/*from w w w. j a va  2 s  . c o  m*/
                }
            }
        });
        IdleStrategy idleStrategy = new SleepingIdleStrategy(TimeUnit.MICROSECONDS.toNanos(1L));
        while (state.get() && lastReceived.get() < fixtures.getNumberOfMessages()) {
            idleStrategy.idle();
        }
        subscriber.close();
        if (!state.get()) {
            System.out.println("Broken connection on messageId=" + lastReceived.get());
            System.out.println("Last messageId=" + lastReceived);
        }
        return state.get();
    });
}

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From source file:cn.codepub.redis.directory.RedisDirectory.java

private RedisFile loadRedisToFile(String fileName) {
    byte[] hget = inputOutputStream.hget(Constants.DIR_METADATA_BYTES, fileName.getBytes(), FILE_LENGTH);
    long lenght = Longs.fromByteArray(hget);
    RedisFile redisFile = new RedisFile(fileName, lenght);
    long blockSize = getBlockSize(lenght);
    List<byte[]> bytes = inputOutputStream.loadFileOnce(Constants.FILE_METADATA, fileName, blockSize);
    redisFile.setBuffers(bytes);//from  www .ja  va2  s.  c  om
    return redisFile;
}

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From source file:org.apache.storm.verify.VerifyUtils.java

public static String toString(byte[] bytes, Class type) {
    if (String.class.equals(type)) {
        return new String(bytes);
    } else if (Long.class.equals(type)) {
        return String.valueOf(Longs.fromByteArray(bytes));
    } else if (Integer.class.equals(type)) {
        return String.valueOf(Ints.fromByteArray(bytes));
    } else {/*from w ww.j  a  v  a  2 s  .com*/
        throw new IllegalArgumentException("currently we only support String, Long and Integer types");
    }
}

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From source file:org.opendedup.mtools.FDisk.java

private void checkDedupFile(File mapFile) throws IOException {
    if (closed) {
        this.failed = true;
        return;//  w w w. j  a  v  a2 s.  c  o m
    }
    LongByteArrayMap mp = null;
    try {
        if (mapFile.getName().endsWith(".lz4"))
            mp = LongByteArrayMap.getMap(mapFile.getName().substring(0, mapFile.getName().length() - 8));
        else
            mp = LongByteArrayMap.getMap(mapFile.getName().substring(0, mapFile.getName().length() - 4));

        if (closed) {
            this.failed = true;
            return;
        }
        mp.iterInit();
        SparseDataChunk ck = mp.nextValue(false);
        while (ck != null) {
            if (closed) {
                this.failed = true;
                return;
            }
            List<HashLocPair> al = ck.getFingers();
            for (HashLocPair p : al) {
                boolean added = DedupFileStore.addRef(p.hash, Longs.fromByteArray(p.hashloc));
                if (!added)
                    SDFSLogger.getLog().warn("ref not added for " + mapFile + " at " + ck.getFpos());

            }
            ck = mp.nextValue(false);
        }

        synchronized (fEvt) {
            fEvt.curCt++;
        }
    } catch (Throwable e) {
        SDFSLogger.getLog().info("error while checking file [" + mapFile.getPath() + "]", e);
        this.failed = true;
    } finally {
        mp.close();
        mp = null;
    }
    this.files.incrementAndGet();
}

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From source file:com.liaison.javabasics.serialization.BytesUtil.java

/**
 * TODO//from w  ww .ja v a  2 s.  c o  m
 * @param bytes TODO
 * @return TODO
 */
public static Long toLong(final byte[] bytes) {
    // TODO: determine constant values programmatically, or make them constant
    if (bytes != null && bytes.length >= 8) {
        return Long.valueOf(Longs.fromByteArray(bytes));
    }
    return null;
}

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From source file:org.voltdb.sysprocs.saverestore.CSVSnapshotWritePlan.java

static private List<Long> computeDedupedLocalSites(long txnId, SiteTracker tracker) {
    MessageDigest digest;// ww  w. j  a  va2  s  . co m
    try {
        digest = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException e) {
        throw new AssertionError(e);
    }

    /*
     * List of partitions to include if this snapshot is
     * going to be deduped. Attempts to break up the work
     * by seeding and RNG selecting
     * a random replica to do the work. Will not work in failure
     * cases, but we don't use dedupe when we want durability.
     *
     * Originally used the partition id as the seed, but it turns out
     * that nextInt(2) returns a 1 for seeds 0-4095. Now use SHA-1
     * on the txnid + partition id.
     */
    List<Long> sitesToInclude = new ArrayList<Long>();
    for (long localSite : tracker.getLocalSites()) {
        final int partitionId = tracker.getPartitionForSite(localSite);
        List<Long> sites = new ArrayList<Long>(
                tracker.getSitesForPartition(tracker.getPartitionForSite(localSite)));
        Collections.sort(sites);

        digest.update(Longs.toByteArray(txnId));
        final long seed = Longs.fromByteArray(Arrays.copyOf(digest.digest(Ints.toByteArray(partitionId)), 8));

        int siteIndex = new java.util.Random(seed).nextInt(sites.size());
        if (localSite == sites.get(siteIndex)) {
            sitesToInclude.add(localSite);
        }
    }
    return sitesToInclude;
}

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From source file:org.apache.apex.malhar.lib.state.managed.IncrementalCheckpointManager.java

/**
 * Retrieves artifacts available for all the windows saved by the enclosing partitions.
 * @return  artifact saved per window.//from  www. j  ava 2  s  .  com
 * @throws IOException
 */
public Map<Long, Object> retrieveAllWindows() throws IOException {
    Map<Long, Object> artifactPerWindow = new HashMap<>();
    FileSystemWAL.FileSystemWALReader reader = getWal().getReader();
    reader.seek(getWal().getWalStartPointer());

    Slice windowSlice = readNext(reader);
    while (reader.getCurrentPointer().compareTo(getWal().getWalEndPointerAfterRecovery()) < 0
            && windowSlice != null) {
        long window = Longs.fromByteArray(windowSlice.toByteArray());
        Object data = fromSlice(readNext(reader));
        artifactPerWindow.put(window, data);
        windowSlice = readNext(reader); //null or next window
    }
    reader.seek(getWal().getWalStartPointer());
    return artifactPerWindow;
}

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From source file:org.roqmessaging.core.SubscriberConnectionManager.java

public void run() {
    knownHosts = new ArrayList<String>();
    //      Comparator<byte[]> comparator = UnsignedBytes.lexicographicalComparator();
    int counter = 0;
    while (init() != 0) {
        try {//w ww.java2  s.c o  m
            Thread.sleep(2500);
        } catch (InterruptedException e) {
            logger.error("Error when thread sleeping (init phase)", e);
        }
        logger.info("Retrying connection...");
    }

    this.items = new ZMQ.Poller(2);
    this.items.register(monitorSub);
    this.items.register(exchSub);

    Timer timer = new Timer();
    timer.schedule(new Stats(), 0, 60000);

    logger.info("Worker connected");

    while (running) {
        items.poll(10);
        if (items.pollin(0)) { // Info from Monitor

            String info[] = new String(monitorSub.recv(0)).split(",");
            int infoCode = Integer.parseInt(info[0]);

            if (infoCode == RoQConstant.REQUEST_UPDATE_EXCHANGE_LIST && !info[1].equals("")) {
                // new Exchange  available message
                connectToBroker(info[1]);

            }
        }

        if (items.pollin(1)) {//From Exchange
            byte[] request = null;
            //Get the key
            exchSub.recv(0);
            if (exchSub.hasReceiveMore()) {
                //the ID of the publisher
                request = exchSub.recv(0);
            }
            if (exchSub.hasReceiveMore()) {
                //the payload
                request = exchSub.recv(0);
            }
            if (exchSub.hasReceiveMore()) {
                //the time stamp
                byte[] bTimeStamp = exchSub.recv(0);
                counter++;
                if (counter == 1000) {
                    computeLatency(Longs.fromByteArray(bTimeStamp));
                    counter = 0;
                }
            }
            //logger.debug("Recieving message " +  new String(request,0,request.length) + " key : "+ new String(request,0,request.length));
            //delivering to the message listener
            this.subscriber.onEvent(request != null ? request : new byte[] {});
            received++;
        }
    }
    this.logger.debug("Closing subscriber sockets");
    timer.cancel();
    timer.purge();
    knownHosts.clear();
    this.exchSub.setLinger(0);
    this.exchSub.close();
    this.initReq.setLinger(0);
    this.initReq.close();
    logger.info("Closed.");
}

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From source file:com.indeed.lsmtree.recordcache.MemcachedCache.java

public boolean checkAvailability(String key) {
    long time = System.nanoTime();
    key += "-" + UUID.randomUUID().toString();
    OperationFuture<Boolean> future = memcache.set(key, CACHE_EXPIRY_SECONDS, Longs.toByteArray(time),
            identityTranscoder);//from  w w  w  .  j  av  a 2  s.  c  o m
    try {
        if (!future.get())
            return false;
    } catch (Exception e) {
        return false;
    }
    byte[] bytes = memcache.get(key, identityTranscoder);
    memcache.delete(key);
    return bytes != null && Longs.fromByteArray(bytes) == time;
}

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