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

Example 1 with BackendException

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

the class ElasticSearchConfigTest method testExternalMappingsViaTemplate.

@Test
public void testExternalMappingsViaTemplate() throws Exception {
    final Duration maxWrite = Duration.ofMillis(2000L);
    final String storeName = "test_mapping";
    final Configuration indexConfig = GraphDatabaseConfiguration.buildGraphConfiguration().set(USE_EXTERNAL_MAPPINGS, true, INDEX_NAME).restrictTo(INDEX_NAME);
    final IndexProvider idx = open(indexConfig);
    final ElasticMajorVersion version = ((ElasticSearchIndex) idx).getVersion();
    final HttpPut newTemplate = new HttpPut("_template/template_1");
    final Map<String, Object> content = ImmutableMap.of("template", "janusgraph_test_mapping*", "mappings", readMapping(version, "/strict_mapping.json").getMappings());
    newTemplate.setEntity(new StringEntity(objectMapper.writeValueAsString(content), Charset.forName("UTF-8")));
    executeRequest(newTemplate);
    final HttpPut newMapping = new HttpPut("janusgraph_" + storeName);
    executeRequest(newMapping);
    final KeyInformation.IndexRetriever indexRetriever = IndexProviderTest.getIndexRetriever(IndexProviderTest.getMapping(idx.getFeatures(), ANALYZER_ENGLISH, ANALYZER_KEYWORD));
    final BaseTransactionConfig txConfig = StandardBaseTransactionConfig.of(TimestampProviders.MILLI);
    final IndexTransaction itx = new IndexTransaction(idx, indexRetriever, txConfig, maxWrite);
    // Test date property OK
    idx.register(storeName, "date", IndexProviderTest.getMapping(idx.getFeatures(), ANALYZER_ENGLISH, ANALYZER_KEYWORD).get("date"), itx);
    // Test weight property KO
    try {
        idx.register(storeName, "weight", IndexProviderTest.getMapping(idx.getFeatures(), ANALYZER_ENGLISH, ANALYZER_KEYWORD).get("weight"), itx);
        fail("should fail");
    } catch (final BackendException ignored) {
    }
    itx.rollback();
    idx.close();
}

Example 2 with BackendException

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

the class AstyanaxStoreManager method getRetryPolicy.

private static RetryPolicy getRetryPolicy(String serializedRetryPolicy) throws BackendException {
    String[] tokens = serializedRetryPolicy.split(",");
    String policyClassName = tokens[0];
    int argCount = tokens.length - 1;
    Integer[] args = new Integer[argCount];
    for (int i = 1; i < tokens.length; i++) {
        args[i - 1] = Integer.valueOf(tokens[i]);
    }
    try {
        RetryPolicy rp = instantiate(policyClassName, args, serializedRetryPolicy);
        log.debug("Instantiated RetryPolicy object {} from config string \"{}\"", rp, serializedRetryPolicy);
        return rp;
    } catch (Exception e) {
        throw new PermanentBackendException("Failed to instantiate Astyanax Retry Policy class", e);
    }
}

Example 3 with BackendException

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

the class CassandraThriftStoreManager method ensureColumnFamilyExists.

private void ensureColumnFamilyExists(String ksName, String cfName) throws BackendException {
    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()) {
            String curCfName = cfDef.getName();
            if (curCfName.equals(cfName))
                foundColumnFamily = true;
        }
        if (!foundColumnFamily) {
            createColumnFamily(client, ksName, cfName, "org.apache.cassandra.db.marshal.BytesType");
        } else {
            log.debug("Keyspace {} and ColumnFamily {} were found.", ksName, cfName);
        }
    } catch (SchemaDisagreementException e) {
        throw new TemporaryBackendException(e);
    } catch (Exception e) {
        throw new PermanentBackendException(e);
    } finally {
        pool.returnObjectUnsafe(ksName, conn);
    }
}

Example 4 with BackendException

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

the class CassandraThriftStoreManager method getCompressionOptions.

@Override
public Map<String, String> getCompressionOptions(String cf) throws BackendException {
    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)) {
                result = cfDef.getCompression_options();
                break;
            }
        }
        return result;
    } catch (InvalidRequestException e) {
        log.debug("Keyspace {} does not exist", keySpaceName);
        return null;
    } catch (Exception e) {
        throw new TemporaryBackendException(e);
    } finally {
        pool.returnObjectUnsafe(keySpaceName, conn);
    }
}

Example 5 with BackendException

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

the class CassandraThriftStoreManager method getLocalKeyPartition.

@Override
public List<KeyRange> getLocalKeyPartition() throws BackendException {
    CTConnection conn = null;
    IPartitioner partitioner = getCassandraPartitioner();
    if (!(partitioner instanceof AbstractByteOrderedPartitioner))
        throw new UnsupportedOperationException("getLocalKeyPartition() only supported by byte ordered partitioner.");
    Token.TokenFactory tokenFactory = partitioner.getTokenFactory();
    try {
        // Resist the temptation to describe SYSTEM_KS.  It has no ring.
        // Instead, we'll create our own keyspace (or check that it exists), then describe it.
        ensureKeyspaceExists(keySpaceName);
        conn = pool.borrowObject(keySpaceName);
        final List<TokenRange> ranges = conn.getClient().describe_ring(keySpaceName);
        final List<KeyRange> keyRanges = new ArrayList<>(ranges.size());
        for (TokenRange range : ranges) {
            if (!NetworkUtil.hasLocalAddress(range.endpoints))
                continue;
            keyRanges.add(CassandraHelper.transformRange(tokenFactory.fromString(range.start_token), tokenFactory.fromString(range.end_token)));
        }
        return keyRanges;
    } catch (Exception e) {
        throw CassandraThriftKeyColumnValueStore.convertException(e);
    } finally {
        pool.returnObjectUnsafe(keySpaceName, conn);
    }
}