Examples with Version voldemort.versioning.Version used on opensource projects

Example 6 with Version

use of voldemort.versioning.Version in project voldemort by voldemort.

the class RocksDbStorageEngine method delete.

@Override
public boolean delete(ByteArray key, Version version) throws PersistenceFailureException {
    StoreUtils.assertValidKey(key);
    long startTimeNs = -1;
    if (logger.isTraceEnabled())
        startTimeNs = System.nanoTime();
    synchronized (this.locks.lockFor(key.get())) {
        try {
            byte[] value = getRocksDB().get(storeHandle, key.get());
            if (value == null) {
                return false;
            }
            if (version == null) {
                // unversioned delete. Just blow away the whole thing
                getRocksDB().remove(storeHandle, key.get());
                return true;
            } else {
                // versioned deletes; need to determine what to delete
                List<Versioned<byte[]>> vals = StoreBinaryFormat.fromByteArray(value);
                Iterator<Versioned<byte[]>> iter = vals.iterator();
                int numVersions = vals.size();
                int numDeletedVersions = 0;
                // supplied version
                while (iter.hasNext()) {
                    Versioned<byte[]> curr = iter.next();
                    Version currentVersion = curr.getVersion();
                    if (currentVersion.compare(version) == Occurred.BEFORE) {
                        iter.remove();
                        numDeletedVersions++;
                    }
                }
                if (numDeletedVersions < numVersions) {
                    // we still have some valid versions
                    value = StoreBinaryFormat.toByteArray(vals);
                    getRocksDB().put(storeHandle, key.get(), value);
                } else {
                    // we have deleted all the versions; so get rid of the
                    // entry
                    // in the database
                    getRocksDB().remove(storeHandle, key.get());
                }
                return numDeletedVersions > 0;
            }
        } catch (RocksDBException e) {
            logger.error(e);
            throw new PersistenceFailureException(e);
        } finally {
            if (logger.isTraceEnabled()) {
                logger.trace("Completed DELETE (" + getName() + ") of key " + ByteUtils.toHexString(key.get()) + " (keyRef: " + System.identityHashCode(key) + ") in " + (System.nanoTime() - startTimeNs) + " ns at " + System.currentTimeMillis());
            }
        }
    }
}

Example 7 with Version

use of voldemort.versioning.Version in project voldemort by voldemort.

the class UpdateElementById method update.

@Override
public void update(StoreClient<Map<String, Object>, Map<String, Object>> storeClient) {
    Versioned<Map<String, Object>> nodeMap = storeClient.get(_key.mapValue());
    if (nodeMap == null)
        throw new IndexOutOfBoundsException("invalid id " + _key.getId());
    Version version = (_version != null) ? _version : nodeMap.getVersion();
    VListNode<E> listNode = VListNode.valueOf(nodeMap.getValue());
    if (!listNode.isStable()) {
        throw new ObsoleteVersionException("node " + _key.getId() + " not stable.");
    }
    _result = listNode.getValue();
    VListNode<E> newNode = new VListNode<E>(_element, listNode.getId(), listNode.getPreviousId(), listNode.getNextId(), true);
    storeClient.put(_key.mapValue(), new Versioned<Map<String, Object>>(newNode.mapValue(), version));
}

Example 8 with Version

use of voldemort.versioning.Version in project voldemort by voldemort.

the class GetVersionRequestHandler method writeResponse.

@Override
public void writeResponse(DataOutputStream outputStream) throws IOException {
    outputStream.writeShort(0);
    outputStream.writeInt(results.size());
    for (Version v : results) {
        byte[] clock = ((VectorClock) v).toBytes();
        outputStream.writeInt(clock.length);
        outputStream.write(clock);
    }
}

Example 9 with Version

use of voldemort.versioning.Version in project voldemort by voldemort.

the class DynamicTimeoutStoreClient method putWithCustomTimeout.

/**
     * Performs a put operation with the specified composite request object
     * 
     * @param requestWrapper A composite request object containing the key and
     *        value
     * @return Version of the value for the successful put
     */
public Version putWithCustomTimeout(CompositeVoldemortRequest<K, V> requestWrapper) {
    validateTimeout(requestWrapper.getRoutingTimeoutInMs());
    List<Versioned<V>> versionedValues;
    long startTime = System.currentTimeMillis();
    String keyHexString = "";
    if (logger.isDebugEnabled()) {
        ByteArray key = (ByteArray) requestWrapper.getKey();
        keyHexString = RestUtils.getKeyHexString(key);
        logger.debug("PUT requested for key: " + keyHexString + " , for store: " + this.storeName + " at time(in ms): " + startTime + " . Nested GET and PUT VERSION requests to follow ---");
    }
    // We use the full timeout for doing the Get. In this, we're being
    // optimistic that the subsequent put might be faster such that all the
    // steps might finish within the allotted time
    requestWrapper.setResolveConflicts(true);
    versionedValues = getWithCustomTimeout(requestWrapper);
    Versioned<V> versioned = getItemOrThrow(requestWrapper.getKey(), null, versionedValues);
    long endTime = System.currentTimeMillis();
    if (versioned == null)
        versioned = Versioned.value(requestWrapper.getRawValue(), new VectorClock());
    else
        versioned.setObject(requestWrapper.getRawValue());
    // This should not happen unless there's a bug in the
    // getWithCustomTimeout
    long timeLeft = requestWrapper.getRoutingTimeoutInMs() - (endTime - startTime);
    if (timeLeft <= 0) {
        throw new StoreTimeoutException("PUT request timed out");
    }
    CompositeVersionedPutVoldemortRequest<K, V> putVersionedRequestObject = new CompositeVersionedPutVoldemortRequest<K, V>(requestWrapper.getKey(), versioned, timeLeft);
    putVersionedRequestObject.setRequestOriginTimeInMs(requestWrapper.getRequestOriginTimeInMs());
    Version result = putVersionedWithCustomTimeout(putVersionedRequestObject);
    long endTimeInMs = System.currentTimeMillis();
    if (logger.isDebugEnabled()) {
        logger.debug("PUT response received for key: " + keyHexString + " , for store: " + this.storeName + " at time(in ms): " + endTimeInMs);
    }
    return result;
}

Example 10 with Version

use of voldemort.versioning.Version in project voldemort by voldemort.

the class DefaultStoreClient method put.

public Version put(K key, V value) {
    Version version = getVersionForPut(key);
    Versioned<V> versioned = Versioned.value(value, version);
    return put(key, versioned);
}