Examples of CTConnection

com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection
Wraps a {@code Cassandra.Client} instance, its underlying {@code TTransport}instance, and the {@link CTConnectionFactory.Config} instance used to setupthe connection. @see CTConnectionFactory @see CTConnectionPool @author Dan LaRocque

Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

        range.setCount(query.getLimit());
        range.setStart(query.getSliceStart().asByteBuffer());
        range.setFinish(query.getSliceEnd().asByteBuffer());
        predicate.setSlice_range(range);


        CTConnection conn = null;
        try {
            conn = pool.borrowObject(keyspace);
            Cassandra.Client client = conn.getClient();


            List<ByteBuffer> requestKeys = new ArrayList<ByteBuffer>(keys.size());
            {
                for (StaticBuffer key : keys) {
                    requestKeys.add(key.asByteBuffer());

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

        byte[] empty = new byte[0];
        range.setStart(empty);
        range.setFinish(empty);
        predicate.setSlice_range(range);


        CTConnection conn = null;
        try {
            conn = pool.borrowObject(keyspace);
            Cassandra.Client client = conn.getClient();
            List<?> result = client.get_slice(key.asByteBuffer(), parent, predicate, consistency);
            return 0 < result.size();
        } catch (Exception e) {
            throw convertException(e);
        } finally {

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

                    .setFinish(sliceQuery.getSliceEnd().asByteBuffer())
                    .setCount((sliceQuery.hasLimit()) ? sliceQuery.getLimit() : Integer.MAX_VALUE);
        }




        CTConnection connection = null;
        try {
            connection = pool.borrowObject(keyspace);


            List<KeySlice> slices =
                    connection.getClient().get_range_slices(new ColumnParent(columnFamily),
                            new SlicePredicate()
                                    .setSlice_range(sliceRange),
                            keyRange,
                            ConsistencyLevel.QUORUM);

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

    }


    @Override
    @SuppressWarnings("unchecked")
    public IPartitioner<? extends Token<?>> getCassandraPartitioner() throws StorageException {
        CTConnection conn = null;
        try {
            conn = pool.borrowObject(SYSTEM_KS);
            return FBUtilities.newPartitioner(conn.getClient().describe_partitioner());
        } catch (Exception e) {
            throw new TemporaryStorageException(e);
        } finally {
            pool.returnObjectUnsafe(SYSTEM_KS, conn);
        }

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection


                cfmutation.put(columnFamily, thriftMutation);
            }
        }


        CTConnection conn = null;
        try {
            conn = pool.borrowObject(keySpaceName);
            Cassandra.Client client = conn.getClient();
            client.batch_mutate(batch, consistency);
        } catch (Exception ex) {
            throw CassandraThriftKeyColumnValueStore.convertException(ex);
        } finally {
            pool.returnObjectUnsafe(keySpaceName, conn);

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

         * generated a log message, but the docs warn that "generating caller
         * location information is extremely slow and should be avoided unless
         * execution speed is not an issue."
         */


        CTConnection conn = null;
        try {
            conn = pool.borrowObject(SYSTEM_KS);
            Cassandra.Client client = conn.getClient();


            KsDef ksDef;
            try {
                client.set_keyspace(keySpaceName);
                ksDef = client.describe_keyspace(keySpaceName);
            } catch (NotFoundException e) {
                log.debug(lp + "Keyspace {} does not exist, not attempting to truncate.", keySpaceName);
                return;
            } catch (InvalidRequestException e) {
                log.debug(lp + "InvalidRequestException when attempting to describe keyspace {}, not attempting to truncate.", keySpaceName);
                return;
            }




            if (null == ksDef) {
                log.debug(lp + "Received null KsDef for keyspace {}; not truncating its CFs", keySpaceName);
                return;
            }


            List<CfDef> cfDefs = ksDef.getCf_defs();


            if (null == cfDefs) {
                log.debug(lp + "Received empty CfDef list for keyspace {}; not truncating CFs", keySpaceName);
                return;
            }


            for (CfDef cfDef : ksDef.getCf_defs()) {
                client.truncate(cfDef.name);
                log.info(lp + "Truncated CF {} in keyspace {}", cfDef.name, keySpaceName);
            }


            /*
             * Clearing the CTConnectionPool is unnecessary. This method
             * removes no keyspaces. All open Cassandra connections will
             * remain valid.
             */
        } catch (Exception e) {
            throw new TemporaryStorageException(e);
        } finally {
            if (conn != null && conn.getClient() != null) {
                try {
                    conn.getClient().set_keyspace(SYSTEM_KS);
                } catch (InvalidRequestException e) {
                    log.warn("Failed to reset keyspace", e);
                } catch (TException e) {
                    log.warn("Failed to reset keyspace", e);
                }

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection


    private KsDef ensureKeyspaceExists(String keyspaceName)
            throws NotFoundException, InvalidRequestException, TException,
            SchemaDisagreementException, StorageException {


        CTConnection connection = null;


        try {
            connection = pool.borrowObject(SYSTEM_KS);
            Cassandra.Client client = connection.getClient();


            try {
                // Side effect: throws Exception if keyspaceName doesn't exist
                client.set_keyspace(keyspaceName); // Don't remove
                client.set_keyspace(SYSTEM_KS);

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

    private void ensureColumnFamilyExists(String ksName, String cfName) throws StorageException {
        ensureColumnFamilyExists(ksName, cfName, "org.apache.cassandra.db.marshal.BytesType");
    }


    private void ensureColumnFamilyExists(String ksName, String cfName, String comparator) throws StorageException {
        CTConnection conn = null;
        try {
            KsDef keyspaceDef = ensureKeyspaceExists(ksName);


            conn = pool.borrowObject(ksName);
            Cassandra.Client client = conn.getClient();


            log.debug("Looking up metadata on keyspace {}...", ksName);


            boolean foundColumnFamily = false;
            for (CfDef cfDef : keyspaceDef.getCf_defs()) {

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

        log.debug("Added column family {} to keyspace {}.", cfName, ksName);
    }


    @Override
    public Map<String, String> getCompressionOptions(String cf) throws StorageException {
        CTConnection conn = null;
        Map<String, String> result = null;


        try {
            conn = pool.borrowObject(keySpaceName);
            Cassandra.Client client = conn.getClient();


            KsDef ksDef = client.describe_keyspace(keySpaceName);


            for (CfDef cfDef : ksDef.getCf_defs()) {
                if (null != cfDef && cfDef.getName().equals(cf)) {

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Examples of com.thinkaurelius.titan.diskstorage.cassandra.thrift.thriftpool.CTConnection

    public void waitForClusterSize(int minSize) throws InterruptedException, StorageException {
        CTConnectionFactory f = new CTConnectionFactory(new String[]{ address }, port,
                null, null, // username, password
                GraphDatabaseConfiguration.CONNECTION_TIMEOUT_DEFAULT,
                AbstractCassandraStoreManager.THRIFT_DEFAULT_FRAME_SIZE);
        CTConnection conn = null;
        try {
            conn = f.makeRawConnection();
            CTConnectionFactory.waitForClusterSize(conn.getClient(), minSize);
        } catch (TTransportException e) {
            throw new TemporaryStorageException(e);
        } finally {
            if (null != conn)
                if (conn.getTransport().isOpen())
                    conn.getTransport().close();
        }
    }

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