Examples with IndexEntry org.janusgraph.diskstorage.indexing.IndexEntry used on opensource projects

Example 6 with IndexEntry

use of org.janusgraph.diskstorage.indexing.IndexEntry in project janusgraph by JanusGraph.

the class StandardJanusGraph method prepareCommit.

public ModificationSummary prepareCommit(final Collection<InternalRelation> addedRelations, final Collection<InternalRelation> deletedRelations, final Predicate<InternalRelation> filter, final BackendTransaction mutator, final StandardJanusGraphTx tx, final boolean acquireLocks) throws BackendException {
    ListMultimap<Long, InternalRelation> mutations = ArrayListMultimap.create();
    ListMultimap<InternalVertex, InternalRelation> mutatedProperties = ArrayListMultimap.create();
    List<IndexSerializer.IndexUpdate> indexUpdates = Lists.newArrayList();
    // 1) Collect deleted edges and their index updates and acquire edge locks
    for (InternalRelation del : Iterables.filter(deletedRelations, filter)) {
        Preconditions.checkArgument(del.isRemoved());
        for (int pos = 0; pos < del.getLen(); pos++) {
            InternalVertex vertex = del.getVertex(pos);
            if (pos == 0 || !del.isLoop()) {
                if (del.isProperty())
                    mutatedProperties.put(vertex, del);
                mutations.put(vertex.longId(), del);
            }
            if (acquireLock(del, pos, acquireLocks)) {
                Entry entry = edgeSerializer.writeRelation(del, pos, tx);
                mutator.acquireEdgeLock(idManager.getKey(vertex.longId()), entry);
            }
        }
        indexUpdates.addAll(indexSerializer.getIndexUpdates(del));
    }
    // 2) Collect added edges and their index updates and acquire edge locks
    for (InternalRelation add : Iterables.filter(addedRelations, filter)) {
        Preconditions.checkArgument(add.isNew());
        for (int pos = 0; pos < add.getLen(); pos++) {
            InternalVertex vertex = add.getVertex(pos);
            if (pos == 0 || !add.isLoop()) {
                if (add.isProperty())
                    mutatedProperties.put(vertex, add);
                mutations.put(vertex.longId(), add);
            }
            if (!vertex.isNew() && acquireLock(add, pos, acquireLocks)) {
                Entry entry = edgeSerializer.writeRelation(add, pos, tx);
                mutator.acquireEdgeLock(idManager.getKey(vertex.longId()), entry.getColumn());
            }
        }
        indexUpdates.addAll(indexSerializer.getIndexUpdates(add));
    }
    // 3) Collect all index update for vertices
    for (InternalVertex v : mutatedProperties.keySet()) {
        indexUpdates.addAll(indexSerializer.getIndexUpdates(v, mutatedProperties.get(v)));
    }
    // 4) Acquire index locks (deletions first)
    for (IndexSerializer.IndexUpdate update : indexUpdates) {
        if (!update.isCompositeIndex() || !update.isDeletion())
            continue;
        CompositeIndexType iIndex = (CompositeIndexType) update.getIndex();
        if (acquireLock(iIndex, acquireLocks)) {
            mutator.acquireIndexLock((StaticBuffer) update.getKey(), (Entry) update.getEntry());
        }
    }
    for (IndexSerializer.IndexUpdate update : indexUpdates) {
        if (!update.isCompositeIndex() || !update.isAddition())
            continue;
        CompositeIndexType iIndex = (CompositeIndexType) update.getIndex();
        if (acquireLock(iIndex, acquireLocks)) {
            mutator.acquireIndexLock((StaticBuffer) update.getKey(), ((Entry) update.getEntry()).getColumn());
        }
    }
    // 5) Add relation mutations
    for (Long vertexId : mutations.keySet()) {
        Preconditions.checkArgument(vertexId > 0, "Vertex has no id: %s", vertexId);
        final List<InternalRelation> edges = mutations.get(vertexId);
        final List<Entry> additions = new ArrayList<>(edges.size());
        final List<Entry> deletions = new ArrayList<>(Math.max(10, edges.size() / 10));
        for (final InternalRelation edge : edges) {
            final InternalRelationType baseType = (InternalRelationType) edge.getType();
            assert baseType.getBaseType() == null;
            for (InternalRelationType type : baseType.getRelationIndexes()) {
                if (type.getStatus() == SchemaStatus.DISABLED)
                    continue;
                for (int pos = 0; pos < edge.getArity(); pos++) {
                    if (!type.isUnidirected(Direction.BOTH) && !type.isUnidirected(EdgeDirection.fromPosition(pos)))
                        // Directionality is not covered
                        continue;
                    if (edge.getVertex(pos).longId() == vertexId) {
                        StaticArrayEntry entry = edgeSerializer.writeRelation(edge, type, pos, tx);
                        if (edge.isRemoved()) {
                            deletions.add(entry);
                        } else {
                            Preconditions.checkArgument(edge.isNew());
                            int ttl = getTTL(edge);
                            if (ttl > 0) {
                                entry.setMetaData(EntryMetaData.TTL, ttl);
                            }
                            additions.add(entry);
                        }
                    }
                }
            }
        }
        StaticBuffer vertexKey = idManager.getKey(vertexId);
        mutator.mutateEdges(vertexKey, additions, deletions);
    }
    // 6) Add index updates
    boolean has2iMods = false;
    for (IndexSerializer.IndexUpdate indexUpdate : indexUpdates) {
        assert indexUpdate.isAddition() || indexUpdate.isDeletion();
        if (indexUpdate.isCompositeIndex()) {
            final IndexSerializer.IndexUpdate<StaticBuffer, Entry> update = indexUpdate;
            if (update.isAddition())
                mutator.mutateIndex(update.getKey(), Lists.newArrayList(update.getEntry()), KCVSCache.NO_DELETIONS);
            else
                mutator.mutateIndex(update.getKey(), KeyColumnValueStore.NO_ADDITIONS, Lists.newArrayList(update.getEntry()));
        } else {
            final IndexSerializer.IndexUpdate<String, IndexEntry> update = indexUpdate;
            has2iMods = true;
            IndexTransaction itx = mutator.getIndexTransaction(update.getIndex().getBackingIndexName());
            String indexStore = ((MixedIndexType) update.getIndex()).getStoreName();
            if (update.isAddition())
                itx.add(indexStore, update.getKey(), update.getEntry(), update.getElement().isNew());
            else
                itx.delete(indexStore, update.getKey(), update.getEntry().field, update.getEntry().value, update.getElement().isRemoved());
        }
    }
    return new ModificationSummary(!mutations.isEmpty(), has2iMods);
}

Example 7 with IndexEntry

use of org.janusgraph.diskstorage.indexing.IndexEntry in project janusgraph by JanusGraph.

the class ElasticSearchIndex method getNewDocument.

public Map<String, Object> getNewDocument(final List<IndexEntry> additions, KeyInformation.StoreRetriever information) throws BackendException {
    // JSON writes duplicate fields one after another, which forces us
    // at this stage to make de-duplication on the IndexEntry list. We don't want to pay the
    // price map storage on the Mutation level because none of other backends need that.
    final Multimap<String, IndexEntry> unique = LinkedListMultimap.create();
    for (final IndexEntry e : additions) {
        unique.put(e.field, e);
    }
    final Map<String, Object> doc = new HashMap<>();
    for (final Map.Entry<String, Collection<IndexEntry>> add : unique.asMap().entrySet()) {
        final KeyInformation keyInformation = information.get(add.getKey());
        final Object value;
        switch(keyInformation.getCardinality()) {
            case SINGLE:
                value = convertToEsType(Iterators.getLast(add.getValue().iterator()).value, Mapping.getMapping(keyInformation));
                break;
            case SET:
            case LIST:
                value = add.getValue().stream().map(v -> convertToEsType(v.value, Mapping.getMapping(keyInformation))).filter(v -> {
                    Preconditions.checkArgument(!(v instanceof byte[]), "Collections not supported for " + add.getKey());
                    return true;
                }).toArray();
                break;
            default:
                value = null;
                break;
        }
        doc.put(add.getKey(), value);
        if (hasDualStringMapping(information.get(add.getKey())) && keyInformation.getDataType() == String.class) {
            doc.put(getDualMappingName(add.getKey()), value);
        }
    }
    return doc;
}

Example 8 with IndexEntry

use of org.janusgraph.diskstorage.indexing.IndexEntry in project janusgraph by JanusGraph.

the class SolrIndex method handleRemovalsFromIndex.

private void handleRemovalsFromIndex(String collectionName, String keyIdField, String docId, List<IndexEntry> fieldDeletions, KeyInformation.IndexRetriever information) throws SolrServerException, IOException, BackendException {
    final Map<String, String> fieldDeletes = new HashMap<>(1);
    fieldDeletes.put("set", null);
    final SolrInputDocument doc = new SolrInputDocument();
    doc.addField(keyIdField, docId);
    for (final IndexEntry v : fieldDeletions) {
        final KeyInformation keyInformation = information.get(collectionName, v.field);
        // If the cardinality is a Set or List, we just need to remove the individual value
        // received in the mutation and not set the field to null, but we still consolidate the values
        // in the event of multiple removals in one mutation.
        final Map<String, Object> deletes = collectFieldValues(fieldDeletions, collectionName, information);
        deletes.keySet().forEach(vertex -> {
            final Map<String, Object> remove;
            if (keyInformation.getCardinality() == Cardinality.SINGLE) {
                remove = (Map) fieldDeletes;
            } else {
                remove = new HashMap<>(1);
                remove.put("remove", deletes.get(vertex));
            }
            doc.setField(vertex, remove);
        });
    }
    final UpdateRequest singleDocument = newUpdateRequest();
    singleDocument.add(doc);
    solrClient.request(singleDocument, collectionName);
}

Example 9 with IndexEntry

use of org.janusgraph.diskstorage.indexing.IndexEntry in project janusgraph by JanusGraph.

the class SolrIndex method mutate.

@Override
public void mutate(Map<String, Map<String, IndexMutation>> mutations, KeyInformation.IndexRetriever information, BaseTransaction tx) throws BackendException {
    logger.debug("Mutating SOLR");
    try {
        for (final Map.Entry<String, Map<String, IndexMutation>> stores : mutations.entrySet()) {
            final String collectionName = stores.getKey();
            final String keyIdField = getKeyFieldId(collectionName);
            final List<String> deleteIds = new ArrayList<>();
            final Collection<SolrInputDocument> changes = new ArrayList<>();
            for (final Map.Entry<String, IndexMutation> entry : stores.getValue().entrySet()) {
                final String docId = entry.getKey();
                final IndexMutation mutation = entry.getValue();
                Preconditions.checkArgument(!(mutation.isNew() && mutation.isDeleted()));
                Preconditions.checkArgument(!mutation.isNew() || !mutation.hasDeletions());
                Preconditions.checkArgument(!mutation.isDeleted() || !mutation.hasAdditions());
                // Handle any deletions
                if (mutation.hasDeletions()) {
                    if (mutation.isDeleted()) {
                        logger.trace("Deleting entire document {}", docId);
                        deleteIds.add(docId);
                    } else {
                        final List<IndexEntry> fieldDeletions = new ArrayList<>(mutation.getDeletions());
                        if (mutation.hasAdditions()) {
                            for (final IndexEntry indexEntry : mutation.getAdditions()) {
                                fieldDeletions.remove(indexEntry);
                            }
                        }
                        handleRemovalsFromIndex(collectionName, keyIdField, docId, fieldDeletions, information);
                    }
                }
                if (mutation.hasAdditions()) {
                    final int ttl = mutation.determineTTL();
                    final SolrInputDocument doc = new SolrInputDocument();
                    doc.setField(keyIdField, docId);
                    final boolean isNewDoc = mutation.isNew();
                    if (isNewDoc)
                        logger.trace("Adding new document {}", docId);
                    final Map<String, Object> adds = collectFieldValues(mutation.getAdditions(), collectionName, information);
                    // If cardinality is not single then we should use the "add" operation to update
                    // the index so we don't overwrite existing values.
                    adds.keySet().forEach(v -> {
                        final KeyInformation keyInformation = information.get(collectionName, v);
                        final String solrOp = keyInformation.getCardinality() == Cardinality.SINGLE ? "set" : "add";
                        doc.setField(v, isNewDoc ? adds.get(v) : new HashMap<String, Object>(1) {

                            {
                                put(solrOp, adds.get(v));
                            }
                        });
                    });
                    if (ttl > 0) {
                        Preconditions.checkArgument(isNewDoc, "Solr only supports TTL on new documents [%s]", docId);
                        doc.setField(ttlField, String.format("+%dSECONDS", ttl));
                    }
                    changes.add(doc);
                }
            }
            commitDeletes(collectionName, deleteIds);
            commitChanges(collectionName, changes);
        }
    } catch (final IllegalArgumentException e) {
        throw new PermanentBackendException("Unable to complete query on Solr.", e);
    } catch (final Exception e) {
        throw storageException(e);
    }
}