Examples with WriteMongodTransaction com.torodb.mongodb.core.WriteMongodTransaction used on opensource projects

Example 6 with WriteMongodTransaction

use of com.torodb.mongodb.core.WriteMongodTransaction in project torodb by torodb.

the class UpdateImplementation method apply.

@Override
public Status<UpdateResult> apply(Request req, Command<? super UpdateArgument, ? super UpdateResult> command, UpdateArgument arg, WriteMongodTransaction context) {
    UpdateStatus updateStatus = new UpdateStatus();
    try {
        if (!context.getTorodTransaction().existsCollection(req.getDatabase(), arg.getCollection())) {
            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);
        }
        for (UpdateStatement updateStatement : arg.getStatements()) {
            BsonDocument query = updateStatement.getQuery();
            UpdateAction updateAction = UpdateActionTranslator.translate(updateStatement.getUpdate());
            Cursor<ToroDocument> candidatesCursor;
            switch(query.size()) {
                case 0:
                    {
                        candidatesCursor = context.getTorodTransaction().findAll(req.getDatabase(), arg.getCollection()).asDocCursor();
                        break;
                    }
                case 1:
                    {
                        try {
                            candidatesCursor = findByAttribute(context.getTorodTransaction(), req.getDatabase(), arg.getCollection(), query);
                        } catch (CommandFailed ex) {
                            return Status.from(ex);
                        }
                        break;
                    }
                default:
                    {
                        return Status.from(ErrorCode.COMMAND_FAILED, "The given query is not supported right now");
                    }
            }
            if (candidatesCursor.hasNext()) {
                try {
                    Stream<List<ToroDocument>> candidatesbatchStream;
                    if (updateStatement.isMulti()) {
                        candidatesbatchStream = StreamSupport.stream(Spliterators.spliteratorUnknownSize(candidatesCursor.batch(100), Spliterator.ORDERED), false);
                    } else {
                        candidatesbatchStream = Stream.of(ImmutableList.of(candidatesCursor.next()));
                    }
                    Stream<KvDocument> updatedCandidates = candidatesbatchStream.map(candidates -> {
                        updateStatus.increaseCandidates(candidates.size());
                        context.getTorodTransaction().delete(req.getDatabase(), arg.getCollection(), candidates);
                        return candidates;
                    }).flatMap(l -> l.stream()).map(candidate -> {
                        try {
                            updateStatus.increaseUpdated();
                            return update(updateAction, candidate);
                        } catch (UserException userException) {
                            throw new UserWrappedException(userException);
                        }
                    });
                    context.getTorodTransaction().insert(req.getDatabase(), arg.getCollection(), updatedCandidates);
                } catch (UserWrappedException userWrappedException) {
                    throw userWrappedException.getCause();
                }
            } else if (updateStatement.isUpsert()) {
                KvDocument toInsertCandidate;
                if (updateAction instanceof SetDocumentUpdateAction) {
                    toInsertCandidate = ((SetDocumentUpdateAction) updateAction).getNewValue();
                } else {
                    toInsertCandidate = update(updateAction, new ToroDocument(-1, (KvDocument) MongoWpConverter.translate(query)));
                }
                if (!toInsertCandidate.containsKey(Constants.ID)) {
                    KvDocument.Builder builder = new KvDocument.Builder();
                    for (DocEntry<?> entry : toInsertCandidate) {
                        builder.putValue(entry.getKey(), entry.getValue());
                    }
                    builder.putValue(Constants.ID, MongoWpConverter.translate(objectIdFactory.consumeObjectId()));
                    toInsertCandidate = builder.build();
                }
                updateStatus.increaseCandidates(1);
                updateStatus.increaseCreated(toInsertCandidate.get(Constants.ID));
                Stream<KvDocument> toInsertCandidates = Stream.of(toInsertCandidate);
                context.getTorodTransaction().insert(req.getDatabase(), arg.getCollection(), toInsertCandidates);
            }
        }
    } catch (UserException ex) {
        //TODO: Improve error reporting
        return Status.from(ErrorCode.COMMAND_FAILED, ex.getLocalizedMessage());
    }
    mongodMetrics.getUpdateModified().mark(updateStatus.updated);
    mongodMetrics.getUpdateMatched().mark(updateStatus.candidates);
    mongodMetrics.getUpdateUpserted().mark(updateStatus.upsertResults.size());
    return Status.ok(new UpdateResult(updateStatus.updated, updateStatus.candidates, ImmutableList.copyOf(updateStatus.upsertResults)));
}

Example 7 with WriteMongodTransaction

use of com.torodb.mongodb.core.WriteMongodTransaction in project torodb by torodb.

the class DropIndexesImplementation method apply.

@Override
public Status<DropIndexesResult> apply(Request req, Command<? super DropIndexesArgument, ? super DropIndexesResult> command, DropIndexesArgument arg, WriteMongodTransaction context) {
    int indexesBefore = (int) context.getTorodTransaction().getIndexesInfo(req.getDatabase(), arg.getCollection()).count();
    List<String> indexesToDrop;
    if (!arg.isDropAllIndexes()) {
        if (!arg.isDropByKeys()) {
            if (Constants.ID_INDEX.equals(arg.getIndexToDrop())) {
                return Status.from(ErrorCode.INVALID_OPTIONS, "cannot drop _id index");
            }
            indexesToDrop = Arrays.asList(arg.getIndexToDrop());
        } else {
            if (arg.getKeys().stream().anyMatch(key -> !(KnownType.contains(key.getType())) || (key.getType() != KnownType.asc.getIndexType() && key.getType() != KnownType.desc.getIndexType()))) {
                return getStatusForIndexNotFoundWithKeys(arg);
            }
            indexesToDrop = context.getTorodTransaction().getIndexesInfo(req.getDatabase(), arg.getCollection()).filter(index -> indexFieldsMatchKeys(index, arg.getKeys())).map(index -> index.getName()).collect(Collectors.toList());
            if (indexesToDrop.isEmpty()) {
                return getStatusForIndexNotFoundWithKeys(arg);
            }
        }
    } else {
        indexesToDrop = context.getTorodTransaction().getIndexesInfo(req.getDatabase(), arg.getCollection()).filter(indexInfo -> !Constants.ID_INDEX.equals(indexInfo.getName())).map(indexInfo -> indexInfo.getName()).collect(Collectors.toList());
    }
    for (String indexToDrop : indexesToDrop) {
        boolean dropped = context.getTorodTransaction().dropIndex(req.getDatabase(), arg.getCollection(), indexToDrop);
        if (!dropped) {
            return Status.from(ErrorCode.INDEX_NOT_FOUND, "index not found with name [" + indexToDrop + "]");
        }
    }
    return Status.ok(new DropIndexesResult(indexesBefore));
}

Example 8 with WriteMongodTransaction

use of com.torodb.mongodb.core.WriteMongodTransaction in project torodb by torodb.

the class BDDOplogTest method execute.

@Override
public void execute(OplogTestContext context) throws Exception {
    MongodServer server = context.getMongodServer();
    try (MongodConnection conn = server.openConnection()) {
        try (WriteMongodTransaction trans = conn.openWriteTransaction(true)) {
            given(trans);
            trans.commit();
        }
    }
    context.apply(streamOplog(), getApplierContext());
    try (MongodConnection conn = server.openConnection()) {
        try (ReadOnlyMongodTransaction trans = conn.openReadOnlyTransaction()) {
            then(trans);
        }
    }
}

Example 9 with WriteMongodTransaction

use of com.torodb.mongodb.core.WriteMongodTransaction in project torodb by torodb.

the class AkkaDbCloner method insertDocuments.

private int insertDocuments(MongodServer localServer, String toDb, String collection, List<BsonDocument> docsToInsert) throws RollbackException {
    try (WriteMongodTransaction transaction = createWriteMongodTransaction(localServer)) {
        Status<InsertResult> insertResult = transaction.execute(new Request(toDb, null, true, null), InsertCommand.INSTANCE, new InsertArgument.Builder(collection).addDocuments(docsToInsert).setWriteConcern(WriteConcern.fsync()).setOrdered(true).build());
        if (!insertResult.isOk()) {
            throw new CloningException("Error while inserting a cloned document");
        }
        int insertedDocs = insertResult.getResult().getN();
        if (insertedDocs != docsToInsert.size()) {
            throw new CloningException("Expected to insert " + docsToInsert.size() + " but " + insertResult + " were inserted");
        }
        transaction.commit();
        return insertedDocs;
    } catch (UserException ex) {
        throw new CloningException("Unexpected error while cloning documents", ex);
    }
}

Example 10 with WriteMongodTransaction

use of com.torodb.mongodb.core.WriteMongodTransaction in project torodb by torodb.

the class AkkaDbCloner method createWriteMongodTransaction.

private WriteMongodTransaction createWriteMongodTransaction(MongodServer server) {
    MongodConnection connection = server.openConnection();
    WriteMongodTransaction delegateTransaction = connection.openWriteTransaction();
    return new CloseConnectionWriteMongodTransaction(delegateTransaction);
}