Examples with DeleteStatement com.torodb.mongodb.commands.signatures.general.DeleteCommand.DeleteStatement used on opensource projects

Example 1 with DeleteStatement

use of com.torodb.mongodb.commands.signatures.general.DeleteCommand.DeleteStatement in project torodb by torodb.

the class OplogManager method storeState.

@Locked(exclusive = true)
private void storeState(long hash, OpTime opTime) throws OplogManagerPersistException {
    Preconditions.checkState(isRunning(), "The service is not running");
    try {
        retrier.retry(() -> {
            try (WriteMongodTransaction transaction = connection.openWriteTransaction()) {
                Status<Long> deleteResult = transaction.execute(new Request(OPLOG_DB, null, true, null), DeleteCommand.INSTANCE, new DeleteArgument.Builder(OPLOG_COL).addStatement(new DeleteStatement(DOC_QUERY, false)).build());
                if (!deleteResult.isOk()) {
                    throw new RetrierAbortException(new MongoException(deleteResult));
                }
                //TODO: This should be stored as timestamp once TORODB-189 is resolved
                long optimeAsLong = opTime.toOldBson().getMillisFromUnix();
                Status<InsertResult> insertResult = transaction.execute(new Request(OPLOG_DB, null, true, null), InsertCommand.INSTANCE, new InsertArgument.Builder(OPLOG_COL).addDocument(new BsonDocumentBuilder().appendUnsafe(KEY, new BsonDocumentBuilder().appendUnsafe("hash", newLong(hash)).appendUnsafe("optime_i", DefaultBsonValues.newLong(optimeAsLong)).appendUnsafe("optime_t", newLong(opTime.getTerm())).build()).build()).build());
                if (insertResult.isOk() && insertResult.getResult().getN() != 1) {
                    throw new RetrierAbortException(new MongoException(ErrorCode.OPERATION_FAILED, "More than one element inserted"));
                }
                if (!insertResult.isOk()) {
                    throw new RetrierAbortException(new MongoException(insertResult));
                }
                transaction.commit();
                return Empty.getInstance();
            } catch (UserException ex) {
                throw new RetrierAbortException(ex);
            }
        }, Hint.INFREQUENT_ROLLBACK);
    } catch (RetrierGiveUpException ex) {
        throw new OplogManagerPersistException(ex);
    }
}

Example 2 with DeleteStatement

use of com.torodb.mongodb.commands.signatures.general.DeleteCommand.DeleteStatement in project torodb by torodb.

the class DeleteImplementation method apply.

@Override
public Status<Long> apply(Request req, Command<? super DeleteArgument, ? super Long> command, DeleteArgument arg, WriteMongodTransaction context) {
    Long deleted = 0L;
    for (DeleteStatement deleteStatement : arg.getStatements()) {
        BsonDocument query = deleteStatement.getQuery();
        switch(query.size()) {
            case 0:
                {
                    deleted += context.getTorodTransaction().deleteAll(req.getDatabase(), arg.getCollection());
                    break;
                }
            case 1:
                {
                    try {
                        logDeleteCommand(arg);
                        deleted += deleteByAttribute(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");
                }
        }
    }
    mongodMetrics.getDeletes().mark(deleted);
    return Status.ok(deleted);
}