Examples with StatementExecutionResult herddb.model.StatementExecutionResult used on opensource projects

Example 21 with StatementExecutionResult

use of herddb.model.StatementExecutionResult in project herddb by diennea.

the class DeleteOp method execute.

@Override
public StatementExecutionResult execute(TableSpaceManager tableSpaceManager, TransactionContext transactionContext, StatementEvaluationContext context, boolean lockRequired, boolean forWrite) {
    StatementExecutionResult input = this.input.execute(tableSpaceManager, transactionContext, context, true, true);
    ScanResult downstreamScanResult = (ScanResult) input;
    final Table table = tableSpaceManager.getTableManager(tableName).getTable();
    long transactionId = transactionContext.transactionId;
    int updateCount = 0;
    Bytes key = null;
    try (DataScanner inputScanner = downstreamScanResult.dataScanner) {
        while (inputScanner.hasNext()) {
            DataAccessor row = inputScanner.next();
            long transactionIdFromScanner = inputScanner.getTransactionId();
            if (transactionIdFromScanner > 0 && transactionIdFromScanner != transactionId) {
                transactionId = transactionIdFromScanner;
                transactionContext = new TransactionContext(transactionId);
            }
            key = RecordSerializer.serializePrimaryKey(row, table, table.getPrimaryKey());
            DMLStatement deleteStatement = new DeleteStatement(tableSpace, tableName, null, new RawKeyEquals(key));
            DMLStatementExecutionResult _result = (DMLStatementExecutionResult) tableSpaceManager.executeStatement(deleteStatement, context, transactionContext);
            updateCount += _result.getUpdateCount();
            if (_result.transactionId > 0 && _result.transactionId != transactionId) {
                transactionId = _result.transactionId;
                transactionContext = new TransactionContext(transactionId);
            }
            key = _result.getKey();
        }
        return new DMLStatementExecutionResult(transactionId, updateCount, key, null);
    } catch (DataScannerException err) {
        throw new StatementExecutionException(err);
    }
}

Example 22 with StatementExecutionResult

use of herddb.model.StatementExecutionResult in project herddb by diennea.

the class UpdateOp method execute.

@Override
public StatementExecutionResult execute(TableSpaceManager tableSpaceManager, TransactionContext transactionContext, StatementEvaluationContext context, boolean lockRequired, boolean forWrite) {
    StatementExecutionResult input = this.input.execute(tableSpaceManager, transactionContext, context, true, true);
    ScanResult downstreamScanResult = (ScanResult) input;
    final Table table = tableSpaceManager.getTableManager(tableName).getTable();
    long transactionId = transactionContext.transactionId;
    int updateCount = 0;
    Bytes key = null;
    Bytes newValue = null;
    try (DataScanner inputScanner = downstreamScanResult.dataScanner) {
        while (inputScanner.hasNext()) {
            DataAccessor row = inputScanner.next();
            long transactionIdFromScanner = inputScanner.getTransactionId();
            if (transactionIdFromScanner > 0 && transactionIdFromScanner != transactionId) {
                transactionId = transactionIdFromScanner;
                transactionContext = new TransactionContext(transactionId);
            }
            key = RecordSerializer.serializePrimaryKey(row, table, table.getPrimaryKey());
            Predicate pred = new RawKeyEquals(key);
            DMLStatement updateStatement = new UpdateStatement(tableSpace, tableName, null, this.recordFunction, pred).setReturnValues(returnValues);
            DMLStatementExecutionResult _result = (DMLStatementExecutionResult) tableSpaceManager.executeStatement(updateStatement, context, transactionContext);
            updateCount += _result.getUpdateCount();
            if (_result.transactionId > 0 && _result.transactionId != transactionId) {
                transactionId = _result.transactionId;
                transactionContext = new TransactionContext(transactionId);
            }
            key = _result.getKey();
            newValue = _result.getNewvalue();
        }
        return new DMLStatementExecutionResult(transactionId, updateCount, key, newValue);
    } catch (DataScannerException err) {
        throw new StatementExecutionException(err);
    }
}

Example 23 with StatementExecutionResult

use of herddb.model.StatementExecutionResult in project herddb by diennea.

the class ServerSideConnectionPeer method handleExecuteStatement.

private void handleExecuteStatement(Message message, Channel _channel) {
    Long tx = (Long) message.parameters.get("tx");
    long txId = tx != null ? tx : TransactionContext.NOTRANSACTION_ID;
    String query = (String) message.parameters.get("query");
    String tableSpace = (String) message.parameters.get("tableSpace");
    Boolean returnValues = (Boolean) message.parameters.get("returnValues");
    if (returnValues == null) {
        returnValues = Boolean.FALSE;
    }
    List<Object> parameters = (List<Object>) message.parameters.get("params");
    if (LOGGER.isLoggable(Level.FINEST)) {
        LOGGER.log(Level.FINEST, "query " + query + " with " + parameters);
    }
    try {
        TransactionContext transactionContext = new TransactionContext(txId);
        TranslatedQuery translatedQuery = server.getManager().getPlanner().translate(tableSpace, query, parameters, false, true, returnValues, -1);
        Statement statement = translatedQuery.plan.mainStatement;
        // LOGGER.log(Level.SEVERE, "query " + query + ", " + parameters + ", plan: " + translatedQuery.plan);
        StatementExecutionResult result = server.getManager().executePlan(translatedQuery.plan, translatedQuery.context, transactionContext);
        // LOGGER.log(Level.SEVERE, "query " + query + ", " + parameters + ", result:" + result);
        if (result instanceof DMLStatementExecutionResult) {
            DMLStatementExecutionResult dml = (DMLStatementExecutionResult) result;
            Map<String, Object> otherData = null;
            if (returnValues && dml.getKey() != null) {
                TableAwareStatement tableStatement = statement.unwrap(TableAwareStatement.class);
                Table table = server.getManager().getTableSpaceManager(statement.getTableSpace()).getTableManager(tableStatement.getTable()).getTable();
                otherData = new HashMap<>();
                Object key = RecordSerializer.deserializePrimaryKey(dml.getKey().data, table);
                otherData.put("key", key);
                if (dml.getNewvalue() != null) {
                    Map<String, Object> newvalue = RecordSerializer.toBean(new Record(dml.getKey(), dml.getNewvalue()), table);
                    otherData.put("newvalue", newvalue);
                }
            }
            _channel.sendReplyMessage(message, Message.EXECUTE_STATEMENT_RESULT(dml.getUpdateCount(), otherData, dml.transactionId));
        } else if (result instanceof GetResult) {
            GetResult get = (GetResult) result;
            if (!get.found()) {
                _channel.sendReplyMessage(message, Message.EXECUTE_STATEMENT_RESULT(0, null, get.transactionId));
            } else {
                Map<String, Object> record = get.getRecord().toBean(get.getTable());
                _channel.sendReplyMessage(message, Message.EXECUTE_STATEMENT_RESULT(1, record, get.transactionId));
            }
        } else if (result instanceof TransactionResult) {
            TransactionResult txresult = (TransactionResult) result;
            Map<String, Object> data = new HashMap<>();
            Set<Long> transactionsForTableSpace = openTransactions.computeIfAbsent(statement.getTableSpace(), k -> new ConcurrentSkipListSet<>());
            switch(txresult.getOutcome()) {
                case BEGIN:
                    {
                        transactionsForTableSpace.add(txresult.getTransactionId());
                        break;
                    }
                case COMMIT:
                case ROLLBACK:
                    transactionsForTableSpace.remove(txresult.getTransactionId());
                    break;
            }
            data.put("tx", txresult.getTransactionId());
            _channel.sendReplyMessage(message, Message.EXECUTE_STATEMENT_RESULT(1, data, txresult.transactionId));
        } else if (result instanceof DDLStatementExecutionResult) {
            DDLStatementExecutionResult ddl = (DDLStatementExecutionResult) result;
            _channel.sendReplyMessage(message, Message.EXECUTE_STATEMENT_RESULT(1, null, ddl.transactionId));
        } else {
            _channel.sendReplyMessage(message, Message.ERROR(null, new Exception("unknown result type " + result.getClass() + " (" + result + ")")));
        }
    } catch (DuplicatePrimaryKeyException err) {
        LOGGER.log(Level.SEVERE, "error on query " + query + ", parameters: " + parameters + ": err", err);
        Message error = Message.ERROR(null, err);
        _channel.sendReplyMessage(message, error);
    } catch (NotLeaderException err) {
        Message error = Message.ERROR(null, err);
        error.setParameter("notLeader", "true");
        _channel.sendReplyMessage(message, error);
    } catch (StatementExecutionException err) {
        Message error = Message.ERROR(null, err);
        _channel.sendReplyMessage(message, error);
    } catch (RuntimeException err) {
        LOGGER.log(Level.SEVERE, "unexpected error on query " + query + ", parameters: " + parameters + ": err", err);
        Message error = Message.ERROR(null, err);
        _channel.sendReplyMessage(message, error);
    }
}

Example 24 with StatementExecutionResult

use of herddb.model.StatementExecutionResult in project herddb by diennea.

the class ServerSideConnectionPeer method handleExecuteStatements.

private void handleExecuteStatements(Message message, Channel _channel) {
    Long tx = (Long) message.parameters.get("tx");
    long txId = tx != null ? tx : TransactionContext.NOTRANSACTION_ID;
    long transactionId = txId;
    String query = (String) message.parameters.get("query");
    String tableSpace = (String) message.parameters.get("tableSpace");
    Boolean returnValues = (Boolean) message.parameters.get("returnValues");
    if (returnValues == null) {
        returnValues = Boolean.FALSE;
    }
    List<List<Object>> batch = (List<List<Object>>) message.parameters.get("params");
    try {
        List<Long> updateCounts = new ArrayList<>(batch.size());
        List<Map<String, Object>> otherDatas = new ArrayList<>(batch.size());
        for (int i = 0; i < batch.size(); i++) {
            List<Object> parameters = batch.get(i);
            TransactionContext transactionContext = new TransactionContext(transactionId);
            TranslatedQuery translatedQuery = server.getManager().getPlanner().translate(tableSpace, query, parameters, false, true, returnValues, -1);
            Statement statement = translatedQuery.plan.mainStatement;
            StatementExecutionResult result = server.getManager().executePlan(translatedQuery.plan, translatedQuery.context, transactionContext);
            if (transactionId > 0 && result.transactionId > 0 && transactionId != result.transactionId) {
                throw new StatementExecutionException("transactionid changed during batch execution, " + transactionId + "<>" + result.transactionId);
            }
            transactionId = result.transactionId;
            if (result instanceof DMLStatementExecutionResult) {
                DMLStatementExecutionResult dml = (DMLStatementExecutionResult) result;
                Map<String, Object> otherData = Collections.emptyMap();
                if (returnValues && dml.getKey() != null) {
                    TableAwareStatement tableStatement = (TableAwareStatement) statement;
                    Table table = server.getManager().getTableSpaceManager(statement.getTableSpace()).getTableManager(tableStatement.getTable()).getTable();
                    Object key = RecordSerializer.deserializePrimaryKey(dml.getKey().data, table);
                    otherData = new HashMap<>();
                    otherData.put("key", key);
                    if (dml.getNewvalue() != null) {
                        Map<String, Object> newvalue = RecordSerializer.toBean(new Record(dml.getKey(), dml.getNewvalue()), table);
                        otherData.put("newvalue", newvalue);
                    }
                }
                updateCounts.add(Long.valueOf(dml.getUpdateCount()));
                otherDatas.add(otherData);
            } else {
                _channel.sendReplyMessage(message, Message.ERROR(null, new Exception("bad result type " + result.getClass() + " (" + result + ")")));
            }
        }
        _channel.sendReplyMessage(message, Message.EXECUTE_STATEMENT_RESULTS(updateCounts, otherDatas, transactionId));
    } catch (HerdDBInternalException err) {
        Message error = Message.ERROR(null, err);
        if (err instanceof NotLeaderException) {
            error.setParameter("notLeader", "true");
        }
        _channel.sendReplyMessage(message, error);
    }
}

Example 25 with StatementExecutionResult

use of herddb.model.StatementExecutionResult in project herddb by diennea.

the class TableSpaceManager method commitTransaction.

private CompletableFuture<StatementExecutionResult> commitTransaction(CommitTransactionStatement statement, StatementEvaluationContext context) throws StatementExecutionException {
    long txId = statement.getTransactionId();
    validateTransactionBeforeTxCommand(txId);
    LogEntry entry = LogEntryFactory.commitTransaction(txId);
    long lockStamp = context.getTableSpaceLock();
    boolean lockAcquired = false;
    if (lockStamp == 0) {
        lockStamp = acquireReadLock(statement);
        context.setTableSpaceLock(lockStamp);
        lockAcquired = true;
    }
    CommitLogResult pos = log.log(entry, true);
    CompletableFuture<StatementExecutionResult> res = pos.logSequenceNumber.handleAsync((lsn, error) -> {
        if (error == null) {
            apply(pos, entry, false);
            return new TransactionResult(txId, TransactionResult.OutcomeType.COMMIT);
        } else {
            // if the log is not able to write the commit
            // apply a dummy "rollback", we are no more going to accept commands
            // in the scope of this transaction
            LogEntry rollback = LogEntryFactory.rollbackTransaction(txId);
            apply(new CommitLogResult(LogSequenceNumber.START_OF_TIME, false, false), rollback, false);
            throw new CompletionException(error);
        }
    }, callbacksExecutor);
    if (lockAcquired) {
        res = releaseReadLock(res, lockStamp, statement).thenApply(s -> {
            context.setTableSpaceLock(0);
            return s;
        });
    }
    return res;
}