Examples with PermanentBackendException org.janusgraph.diskstorage.PermanentBackendException used on opensource projects

Example 16 with PermanentBackendException

use of org.janusgraph.diskstorage.PermanentBackendException in project janusgraph by JanusGraph.

the class BerkeleyJEKeyValueStore method get.

@Override
public StaticBuffer get(StaticBuffer key, StoreTransaction txh) throws BackendException {
    Transaction tx = getTransaction(txh);
    try {
        DatabaseEntry databaseKey = key.as(ENTRY_FACTORY);
        DatabaseEntry data = new DatabaseEntry();
        log.trace("db={}, op=get, tx={}", name, txh);
        OperationStatus status = db.get(tx, databaseKey, data, getLockMode(txh));
        if (status == OperationStatus.SUCCESS) {
            return getBuffer(data);
        } else {
            return null;
        }
    } catch (DatabaseException e) {
        throw new PermanentBackendException(e);
    }
}

Example 17 with PermanentBackendException

use of org.janusgraph.diskstorage.PermanentBackendException in project janusgraph by JanusGraph.

the class BerkeleyJETx method commit.

@Override
public synchronized void commit() throws BackendException {
    super.commit();
    if (tx == null)
        return;
    if (log.isTraceEnabled())
        log.trace("{} committed", this.toString(), new TransactionClose(this.toString()));
    try {
        closeOpenIterators();
        tx.commit();
        tx = null;
    } catch (DatabaseException e) {
        throw new PermanentBackendException(e);
    }
}

Example 18 with PermanentBackendException

use of org.janusgraph.diskstorage.PermanentBackendException in project janusgraph by JanusGraph.

the class AstyanaxKeyColumnValueStore method getKeys.

@Override
public KeyIterator getKeys(KeyRangeQuery query, StoreTransaction txh) throws BackendException {
    // this query could only be done when byte-ordering partitioner is used
    // because Cassandra operates on tokens internally which means that even contiguous
    // range of keys (e.g. time slice) with random partitioner could produce disjoint set of tokens
    // returning ambiguous results to the user.
    Partitioner partitioner = storeManager.getPartitioner();
    if (partitioner != Partitioner.BYTEORDER)
        throw new PermanentBackendException("getKeys(KeyRangeQuery could only be used with byte-ordering partitioner.");
    ByteBuffer start = query.getKeyStart().asByteBuffer(), end = query.getKeyEnd().asByteBuffer();
    RowSliceQuery rowSlice = keyspace.prepareQuery(columnFamily).setConsistencyLevel(getTx(txh).getReadConsistencyLevel().getAstyanax()).withRetryPolicy(retryPolicy.duplicate()).getKeyRange(start, end, null, null, Integer.MAX_VALUE);
    // Astyanax is bad at builder pattern :(
    rowSlice.withColumnRange(query.getSliceStart().asByteBuffer(), query.getSliceEnd().asByteBuffer(), false, query.getLimit());
    // Omit final the query's key end from the result, if present in result
    final Rows<ByteBuffer, ByteBuffer> r;
    try {
        r = ((OperationResult<Rows<ByteBuffer, ByteBuffer>>) rowSlice.execute()).getResult();
    } catch (ConnectionException e) {
        throw new TemporaryBackendException(e);
    }
    Iterator<Row<ByteBuffer, ByteBuffer>> i = Iterators.filter(r.iterator(), new KeySkipPredicate(query.getKeyEnd().asByteBuffer()));
    return new RowIterator(i, query);
}

Example 19 with PermanentBackendException

use of org.janusgraph.diskstorage.PermanentBackendException in project janusgraph by JanusGraph.

the class AstyanaxStoreManager method getCompressionOptions.

@Override
public Map<String, String> getCompressionOptions(String cf) throws BackendException {
    try {
        Keyspace k = keyspaceContext.getClient();
        KeyspaceDefinition keyspaceDefinition = k.describeKeyspace();
        if (null == keyspaceDefinition) {
            throw new PermanentBackendException("Keyspace " + k.getKeyspaceName() + " is undefined");
        }
        ColumnFamilyDefinition columnFamilyDefinition = keyspaceDefinition.getColumnFamily(cf);
        if (null == columnFamilyDefinition) {
            throw new PermanentBackendException("Column family " + cf + " is undefined");
        }
        return columnFamilyDefinition.getCompressionOptions();
    } catch (ConnectionException e) {
        throw new PermanentBackendException(e);
    }
}

Example 20 with PermanentBackendException

use of org.janusgraph.diskstorage.PermanentBackendException in project janusgraph by JanusGraph.

the class CQLStoreManager method initializeCluster.

Cluster initializeCluster() throws PermanentBackendException {
    final Configuration configuration = getStorageConfig();
    final List<InetSocketAddress> contactPoints;
    try {
        contactPoints = Array.of(this.hostnames).map(hostName -> hostName.split(":")).map(array -> Tuple.of(array[0], array.length == 2 ? Integer.parseInt(array[1]) : this.port)).map(tuple -> new InetSocketAddress(tuple._1, tuple._2)).toJavaList();
    } catch (SecurityException | ArrayIndexOutOfBoundsException | NumberFormatException e) {
        throw new PermanentBackendException("Error initialising cluster contact points", e);
    }
    final Builder builder = Cluster.builder().addContactPointsWithPorts(contactPoints).withClusterName(configuration.get(CLUSTER_NAME));
    if (configuration.get(PROTOCOL_VERSION) != 0) {
        builder.withProtocolVersion(ProtocolVersion.fromInt(configuration.get(PROTOCOL_VERSION)));
    }
    if (configuration.has(AUTH_USERNAME) && configuration.has(AUTH_PASSWORD)) {
        builder.withCredentials(configuration.get(AUTH_USERNAME), configuration.get(AUTH_PASSWORD));
    }
    if (configuration.has(LOCAL_DATACENTER)) {
        builder.withLoadBalancingPolicy(new TokenAwarePolicy(DCAwareRoundRobinPolicy.builder().withLocalDc(configuration.get(LOCAL_DATACENTER)).build()));
    }
    if (configuration.get(SSL_ENABLED)) {
        try {
            final TrustManager[] trustManagers;
            try (final FileInputStream keyStoreStream = new FileInputStream(configuration.get(SSL_TRUSTSTORE_LOCATION))) {
                final KeyStore keystore = KeyStore.getInstance("jks");
                keystore.load(keyStoreStream, configuration.get(SSL_TRUSTSTORE_PASSWORD).toCharArray());
                final TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
                trustManagerFactory.init(keystore);
                trustManagers = trustManagerFactory.getTrustManagers();
            }
            final SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, trustManagers, null);
            final JdkSSLOptions sslOptions = JdkSSLOptions.builder().withSSLContext(sslContext).build();
            builder.withSSL(sslOptions);
        } catch (NoSuchAlgorithmException | CertificateException | IOException | KeyStoreException | KeyManagementException e) {
            throw new PermanentBackendException("Error initialising SSL connection properties", e);
        }
    }
    // Build the PoolingOptions based on the configurations
    PoolingOptions poolingOptions = new PoolingOptions();
    poolingOptions.setMaxRequestsPerConnection(HostDistance.LOCAL, configuration.get(LOCAL_MAX_REQUESTS_PER_CONNECTION)).setMaxRequestsPerConnection(HostDistance.REMOTE, configuration.get(REMOTE_MAX_REQUESTS_PER_CONNECTION));
    poolingOptions.setConnectionsPerHost(HostDistance.LOCAL, configuration.get(LOCAL_CORE_CONNECTIONS_PER_HOST), configuration.get(LOCAL_MAX_CONNECTIONS_PER_HOST)).setConnectionsPerHost(HostDistance.REMOTE, configuration.get(REMOTE_CORE_CONNECTIONS_PER_HOST), configuration.get(REMOTE_MAX_CONNECTIONS_PER_HOST));
    return builder.withPoolingOptions(poolingOptions).build();
}