Examples with JanusGraphException org.janusgraph.core.JanusGraphException used on opensource projects

Example 6 with JanusGraphException

use of org.janusgraph.core.JanusGraphException in project janusgraph by JanusGraph.

the class ManagementUtil method awaitIndexUpdate.

private static void awaitIndexUpdate(JanusGraph g, String indexName, String relationTypeName, long time, TemporalUnit unit) {
    Preconditions.checkArgument(g != null && g.isOpen(), "Need to provide valid, open graph instance");
    Preconditions.checkArgument(time > 0 && unit != null, "Need to provide valid time interval");
    Preconditions.checkArgument(StringUtils.isNotBlank(indexName), "Need to provide an index name");
    StandardJanusGraph graph = (StandardJanusGraph) g;
    TimestampProvider times = graph.getConfiguration().getTimestampProvider();
    Instant end = times.getTime().plus(Duration.of(time, unit));
    boolean isStable = false;
    while (times.getTime().isBefore(end)) {
        JanusGraphManagement management = graph.openManagement();
        try {
            if (StringUtils.isNotBlank(relationTypeName)) {
                RelationTypeIndex idx = management.getRelationIndex(management.getRelationType(relationTypeName), indexName);
                Preconditions.checkArgument(idx != null, "Index could not be found: %s @ %s", indexName, relationTypeName);
                isStable = idx.getIndexStatus().isStable();
            } else {
                JanusGraphIndex idx = management.getGraphIndex(indexName);
                Preconditions.checkArgument(idx != null, "Index could not be found: %s", indexName);
                isStable = true;
                for (PropertyKey key : idx.getFieldKeys()) {
                    if (!idx.getIndexStatus(key).isStable())
                        isStable = false;
                }
            }
        } finally {
            management.rollback();
        }
        if (isStable)
            break;
        try {
            times.sleepFor(Duration.ofMillis(500));
        } catch (InterruptedException ignored) {
        }
    }
    if (!isStable)
        throw new JanusGraphException("Index did not stabilize within the given amount of time. For sufficiently long " + "wait periods this is most likely caused by a failed/incorrectly shut down JanusGraph instance or a lingering transaction.");
}

Example 7 with JanusGraphException

use of org.janusgraph.core.JanusGraphException in project janusgraph by JanusGraph.

the class Backend method getConfiguration.

private static KCVSConfiguration getConfiguration(final BackendOperation.TransactionalProvider txProvider, final KeyColumnValueStore store, final String identifier, final Configuration config) {
    try {
        KCVSConfiguration keyColumnValueStoreConfiguration = new KCVSConfiguration(txProvider, config, store, identifier);
        keyColumnValueStoreConfiguration.setMaxOperationWaitTime(config.get(SETUP_WAITTIME));
        return keyColumnValueStoreConfiguration;
    } catch (BackendException e) {
        throw new JanusGraphException("Could not open global configuration", e);
    }
}

Example 8 with JanusGraphException

use of org.janusgraph.core.JanusGraphException in project janusgraph by JanusGraph.

the class ElasticSearchIndex method checkForOrCreateIndex.

/**
 * If ES already contains this instance's target index, then do nothing.
 * Otherwise, create the index, then wait {@link #CREATE_SLEEP}.
 * <p>
 * The {@code client} field must point to a live, connected client.
 * The {@code indexName} field must be non-null and point to the name
 * of the index to check for existence or create.
 *
 * @param index index name
 * @throws IOException if the index status could not be checked or index could not be created
 */
private void checkForOrCreateIndex(String index) throws IOException {
    Preconditions.checkState(null != client);
    Preconditions.checkNotNull(index);
    // Create index if it does not useExternalMappings and if it does not already exist
    if (!useExternalMappings && !client.indexExists(index)) {
        client.createIndex(index, indexSetting);
        try {
            log.debug("Sleeping {} ms after {} index creation returned from actionGet()", createSleep, index);
            Thread.sleep(createSleep);
        } catch (final InterruptedException e) {
            throw new JanusGraphException("Interrupted while waiting for index to settle in", e);
        }
    }
    Preconditions.checkState(client.indexExists(index), "Could not create index: %s", index);
    if (!useMultitypeIndex) {
        client.addAlias(indexName, index);
    }
}

Example 9 with JanusGraphException

use of org.janusgraph.core.JanusGraphException in project janusgraph by JanusGraph.

the class ManagementSystem method updateIndex.

/* --------------
    Schema Update
     --------------- */
@Override
public IndexJobFuture updateIndex(Index index, SchemaAction updateAction) {
    Preconditions.checkArgument(index != null, "Need to provide an index");
    Preconditions.checkArgument(updateAction != null, "Need to provide update action");
    JanusGraphSchemaVertex schemaVertex = getSchemaVertex(index);
    Set<JanusGraphSchemaVertex> dependentTypes;
    Set<PropertyKeyVertex> keySubset = ImmutableSet.of();
    if (index instanceof RelationTypeIndex) {
        dependentTypes = ImmutableSet.of((JanusGraphSchemaVertex) ((InternalRelationType) schemaVertex).getBaseType());
        if (!updateAction.isApplicableStatus(schemaVertex.getStatus()))
            return null;
    } else if (index instanceof JanusGraphIndex) {
        IndexType indexType = schemaVertex.asIndexType();
        dependentTypes = Sets.newHashSet();
        if (indexType.isCompositeIndex()) {
            if (!updateAction.isApplicableStatus(schemaVertex.getStatus()))
                return null;
            for (PropertyKey key : ((JanusGraphIndex) index).getFieldKeys()) {
                dependentTypes.add((PropertyKeyVertex) key);
            }
        } else {
            keySubset = Sets.newHashSet();
            MixedIndexType mixedIndexType = (MixedIndexType) indexType;
            Set<SchemaStatus> applicableStatus = updateAction.getApplicableStatus();
            for (ParameterIndexField field : mixedIndexType.getFieldKeys()) {
                if (applicableStatus.contains(field.getStatus()))
                    keySubset.add((PropertyKeyVertex) field.getFieldKey());
            }
            if (keySubset.isEmpty())
                return null;
            dependentTypes.addAll(keySubset);
        }
    } else
        throw new UnsupportedOperationException("Updates not supported for index: " + index);
    IndexIdentifier indexId = new IndexIdentifier(index);
    StandardScanner.Builder builder;
    IndexJobFuture future;
    switch(updateAction) {
        case REGISTER_INDEX:
            setStatus(schemaVertex, SchemaStatus.INSTALLED, keySubset);
            updatedTypes.add(schemaVertex);
            updatedTypes.addAll(dependentTypes);
            setUpdateTrigger(new UpdateStatusTrigger(graph, schemaVertex, SchemaStatus.REGISTERED, keySubset));
            future = new EmptyIndexJobFuture();
            break;
        case REINDEX:
            builder = graph.getBackend().buildEdgeScanJob();
            builder.setFinishJob(indexId.getIndexJobFinisher(graph, SchemaAction.ENABLE_INDEX));
            builder.setJobId(indexId);
            builder.setJob(VertexJobConverter.convert(graph, new IndexRepairJob(indexId.indexName, indexId.relationTypeName)));
            try {
                future = builder.execute();
            } catch (BackendException e) {
                throw new JanusGraphException(e);
            }
            break;
        case ENABLE_INDEX:
            setStatus(schemaVertex, SchemaStatus.ENABLED, keySubset);
            updatedTypes.add(schemaVertex);
            if (!keySubset.isEmpty())
                updatedTypes.addAll(dependentTypes);
            future = new EmptyIndexJobFuture();
            break;
        case DISABLE_INDEX:
            setStatus(schemaVertex, SchemaStatus.INSTALLED, keySubset);
            updatedTypes.add(schemaVertex);
            if (!keySubset.isEmpty())
                updatedTypes.addAll(dependentTypes);
            setUpdateTrigger(new UpdateStatusTrigger(graph, schemaVertex, SchemaStatus.DISABLED, keySubset));
            future = new EmptyIndexJobFuture();
            break;
        case REMOVE_INDEX:
            if (index instanceof RelationTypeIndex) {
                builder = graph.getBackend().buildEdgeScanJob();
            } else {
                JanusGraphIndex graphIndex = (JanusGraphIndex) index;
                if (graphIndex.isMixedIndex())
                    throw new UnsupportedOperationException("External mixed indexes must be removed in the indexing system directly.");
                builder = graph.getBackend().buildGraphIndexScanJob();
            }
            builder.setFinishJob(indexId.getIndexJobFinisher());
            builder.setJobId(indexId);
            builder.setJob(new IndexRemoveJob(graph, indexId.indexName, indexId.relationTypeName));
            try {
                future = builder.execute();
            } catch (BackendException e) {
                throw new JanusGraphException(e);
            }
            break;
        default:
            throw new UnsupportedOperationException("Update action not supported: " + updateAction);
    }
    return future;
}

Example 10 with JanusGraphException

use of org.janusgraph.core.JanusGraphException in project janusgraph by JanusGraph.

the class IndexRemoveJob method process.

@Override
public void process(StaticBuffer key, Map<SliceQuery, EntryList> entries, ScanMetrics metrics) {
    // The queries are already tailored enough => everything should be removed
    try {
        BackendTransaction mutator = writeTx.getTxHandle();
        final List<Entry> deletions;
        if (entries.size() == 1)
            deletions = Iterables.getOnlyElement(entries.values());
        else {
            final int size = IteratorUtils.stream(entries.values().iterator()).map(List::size).reduce(0, (x, y) -> x + y);
            deletions = new ArrayList<>(size);
            entries.values().forEach(deletions::addAll);
        }
        metrics.incrementCustom(DELETED_RECORDS_COUNT, deletions.size());
        if (isRelationTypeIndex()) {
            mutator.mutateEdges(key, KCVSCache.NO_ADDITIONS, deletions);
        } else {
            mutator.mutateIndex(key, KCVSCache.NO_ADDITIONS, deletions);
        }
    } catch (final Exception e) {
        managementSystem.rollback();
        writeTx.rollback();
        metrics.incrementCustom(FAILED_TX);
        throw new JanusGraphException(e.getMessage(), e);
    }
}