Examples with FieldIndexOrdering com.torodb.core.transaction.metainf.FieldIndexOrdering used on opensource projects

Example 1 with FieldIndexOrdering

use of com.torodb.core.transaction.metainf.FieldIndexOrdering in project torodb by torodb.

the class CreateIndexesReplImpl method apply.

@Override
public Status<CreateIndexesResult> apply(Request req, Command<? super CreateIndexesArgument, ? super CreateIndexesResult> command, CreateIndexesArgument arg, SharedWriteTorodTransaction trans) {
    int indexesBefore = (int) trans.getIndexesInfo(req.getDatabase(), arg.getCollection()).count();
    int indexesAfter = indexesBefore;
    try {
        boolean existsCollection = trans.existsCollection(req.getDatabase(), arg.getCollection());
        final boolean createdCollectionAutomatically = !existsCollection;
        if (!existsCollection) {
            LOGGER.info("Creating collection {} on {}.{}", req.getDatabase(), arg.getCollection());
            trans.createIndex(req.getDatabase(), arg.getCollection(), Constants.ID_INDEX, ImmutableList.<IndexFieldInfo>of(new IndexFieldInfo(new AttributeReference(Arrays.asList(new Key[] { new ObjectKey(Constants.ID) })), FieldIndexOrdering.ASC.isAscending())), true);
        }
        for (IndexOptions indexOptions : arg.getIndexesToCreate()) {
            if (!replicationFilters.getIndexPredicate().test(req.getDatabase(), arg.getCollection(), indexOptions.getName(), indexOptions.isUnique(), indexOptions.getKeys())) {
                LOGGER.info("Skipping filtered index {}.{}.{}.", req.getDatabase(), arg.getCollection(), indexOptions.getName());
                continue;
            }
            if (indexOptions.getKeys().size() < 1) {
                return Status.from(ErrorCode.CANNOT_CREATE_INDEX, "Index keys cannot be empty.");
            }
            if (indexOptions.isBackground()) {
                LOGGER.info("Building index in background is not supported. Ignoring option");
            }
            if (indexOptions.isSparse()) {
                LOGGER.info("Sparse index are not supported. Ignoring option");
            }
            boolean skipIndex = false;
            List<IndexFieldInfo> fields = new ArrayList<>(indexOptions.getKeys().size());
            for (IndexOptions.Key indexKey : indexOptions.getKeys()) {
                AttributeReference.Builder attRefBuilder = new AttributeReference.Builder();
                for (String key : indexKey.getKeys()) {
                    attRefBuilder.addObjectKey(key);
                }
                IndexType indexType = indexKey.getType();
                if (!KnownType.contains(indexType)) {
                    String note = "Bad index key pattern: Unknown index type '" + indexKey.getType().getName() + "'. Skipping index.";
                    LOGGER.info(note);
                    skipIndex = true;
                    break;
                }
                Optional<FieldIndexOrdering> ordering = indexType.accept(filedIndexOrderingConverterVisitor, null);
                if (!ordering.isPresent()) {
                    String note = "Index of type " + indexType.getName() + " is not supported. Skipping index.";
                    LOGGER.info(note);
                    skipIndex = true;
                    break;
                }
                fields.add(new IndexFieldInfo(attRefBuilder.build(), ordering.get().isAscending()));
            }
            if (skipIndex) {
                continue;
            }
            try {
                LOGGER.info("Creating index {} on collection {}.{}", req.getDatabase(), arg.getCollection(), indexOptions.getName());
                if (trans.createIndex(req.getDatabase(), arg.getCollection(), indexOptions.getName(), fields, indexOptions.isUnique())) {
                    indexesAfter++;
                }
            } catch (UnsupportedCompoundIndexException ex) {
                String note = "Compound indexes are not supported. Skipping index.";
                LOGGER.info(note);
                continue;
            } catch (UnsupportedUniqueIndexException ex) {
                String note = "Unique index with keys on distinct subdocuments is not supported. Skipping index.";
                LOGGER.info(note);
                continue;
            }
        }
        String note = null;
        if (indexesAfter == indexesBefore) {
            note = "all indexes already exist";
        }
        return Status.ok(new CreateIndexesResult(indexesBefore, indexesAfter, note, createdCollectionAutomatically));
    } catch (UserException ex) {
        return Status.from(ErrorCode.COMMAND_FAILED, ex.getLocalizedMessage());
    }
}

Example 2 with FieldIndexOrdering

use of com.torodb.core.transaction.metainf.FieldIndexOrdering in project torodb by torodb.

the class SqlWriteTorodTransaction method createIndex.

@Override
public boolean createIndex(String dbName, String colName, String indexName, List<IndexFieldInfo> fields, boolean unique) throws UserException {
    if (fields.size() > 1) {
        throw new UnsupportedCompoundIndexException(dbName, colName, indexName);
    }
    MutableMetaDatabase metaDb = getOrCreateMetaDatabase(dbName);
    MutableMetaCollection metaColl = getOrCreateMetaCollection(metaDb, colName);
    List<Tuple3<TableRef, String, FieldIndexOrdering>> indexFieldDefs = new ArrayList<>(fields.size());
    for (IndexFieldInfo field : fields) {
        AttributeReference attRef = field.getAttributeReference();
        FieldIndexOrdering ordering = field.isAscending() ? FieldIndexOrdering.ASC : FieldIndexOrdering.DESC;
        TableRef tableRef = extractTableRef(attRef);
        String lastKey = extractKeyName(attRef.getKeys().get(attRef.getKeys().size() - 1));
        indexFieldDefs.add(new Tuple3<>(tableRef, lastKey, ordering));
    }
    if (unique) {
        TableRef anyIndexTableRef = indexFieldDefs.stream().findAny().get().v1();
        boolean isUniqueIndexWithMutlipleTableRefs = indexFieldDefs.stream().anyMatch(t -> !t.v1().equals(anyIndexTableRef));
        if (isUniqueIndexWithMutlipleTableRefs) {
            throw new UnsupportedUniqueIndexException(dbName, colName, indexName);
        }
    }
    boolean indexExists = metaColl.streamContainedMetaIndexes().anyMatch(index -> index.getName().equals(indexName) || (index.isUnique() == unique && index.size() == indexFieldDefs.size() && Seq.seq(index.iteratorFields()).allMatch(indexField -> {
        Tuple3<TableRef, String, FieldIndexOrdering> indexFieldDef = indexFieldDefs.get(indexField.getPosition());
        return indexFieldDef != null && indexFieldDef.v1().equals(indexField.getTableRef()) && indexFieldDef.v2().equals(indexField.getName()) && indexFieldDef.v3() == indexField.getOrdering();
    })));
    if (!indexExists) {
        MutableMetaIndex metaIndex = metaColl.addMetaIndex(indexName, unique);
        for (Tuple3<TableRef, String, FieldIndexOrdering> indexFieldDef : indexFieldDefs) {
            metaIndex.addMetaIndexField(indexFieldDef.v1(), indexFieldDef.v2(), indexFieldDef.v3());
        }
        getInternalTransaction().getBackendTransaction().createIndex(metaDb, metaColl, metaIndex);
    }
    return !indexExists;
}

Example 3 with FieldIndexOrdering

use of com.torodb.core.transaction.metainf.FieldIndexOrdering in project torodb by torodb.

the class CreateIndexesImplementation method apply.

@Override
public Status<CreateIndexesResult> apply(Request req, Command<? super CreateIndexesArgument, ? super CreateIndexesResult> command, CreateIndexesArgument arg, WriteMongodTransaction context) {
    int indexesBefore = (int) context.getTorodTransaction().getIndexesInfo(req.getDatabase(), arg.getCollection()).count();
    int indexesAfter = indexesBefore;
    try {
        boolean existsCollection = context.getTorodTransaction().existsCollection(req.getDatabase(), arg.getCollection());
        if (!existsCollection) {
            context.getTorodTransaction().createIndex(req.getDatabase(), arg.getCollection(), Constants.ID_INDEX, ImmutableList.<IndexFieldInfo>of(new IndexFieldInfo(new AttributeReference(Arrays.asList(new Key[] { new ObjectKey(Constants.ID) })), FieldIndexOrdering.ASC.isAscending())), true);
        }
        boolean createdCollectionAutomatically = !existsCollection;
        for (IndexOptions indexOptions : arg.getIndexesToCreate()) {
            if (indexOptions.getKeys().size() < 1) {
                return Status.from(ErrorCode.CANNOT_CREATE_INDEX, "Index keys cannot be empty.");
            }
            if (indexOptions.isBackground()) {
                throw new CommandFailed("createIndexes", "Building index in background is not supported right now");
            }
            if (indexOptions.isSparse()) {
                throw new CommandFailed("createIndexes", "Sparse index are not supported right now");
            }
            List<IndexFieldInfo> fields = new ArrayList<>(indexOptions.getKeys().size());
            for (IndexOptions.Key indexKey : indexOptions.getKeys()) {
                AttributeReference.Builder attRefBuilder = new AttributeReference.Builder();
                for (String key : indexKey.getKeys()) {
                    attRefBuilder.addObjectKey(key);
                }
                IndexType indexType = indexKey.getType();
                if (!KnownType.contains(indexType)) {
                    return Status.from(ErrorCode.CANNOT_CREATE_INDEX, "bad index key pattern: Unknown index plugin '" + indexKey.getType().getName() + "'");
                }
                Optional<FieldIndexOrdering> ordering = indexType.accept(filedIndexOrderingConverterVisitor, null);
                if (!ordering.isPresent()) {
                    throw new CommandFailed("createIndexes", "Index of type " + indexType.getName() + " is not supported right now");
                }
                fields.add(new IndexFieldInfo(attRefBuilder.build(), ordering.get().isAscending()));
            }
            if (context.getTorodTransaction().createIndex(req.getDatabase(), arg.getCollection(), indexOptions.getName(), fields, indexOptions.isUnique())) {
                indexesAfter++;
            }
        }
        String note = null;
        if (indexesAfter == indexesBefore) {
            note = "all indexes already exist";
        }
        return Status.ok(new CreateIndexesResult(indexesBefore, indexesAfter, note, createdCollectionAutomatically));
    } catch (UserException ex) {
        return Status.from(ErrorCode.COMMAND_FAILED, ex.getLocalizedMessage());
    } catch (CommandFailed ex) {
        return Status.from(ex);
    }
}