private static void process( QueryRunner queryRunner, String sql, OutputFormat outputFormat, boolean interactive) { try (Query query = queryRunner.startQuery(sql)) { query.renderOutput(System.out, outputFormat, interactive); // update session properties if present if (!query.getSetSessionProperties().isEmpty() || !query.getResetSessionProperties().isEmpty()) { Map<String, String> sessionProperties = new HashMap<>(queryRunner.getSession().getProperties()); sessionProperties.putAll(query.getSetSessionProperties()); sessionProperties.keySet().removeAll(query.getResetSessionProperties()); queryRunner.setSession(withProperties(queryRunner.getSession(), sessionProperties)); } } catch (RuntimeException e) { System.out.println("Error running command: " + e.getMessage()); if (queryRunner.getSession().isDebug()) { e.printStackTrace(); } } }
private static void runConsole(QueryRunner queryRunner, ClientSession session) { try (TableNameCompleter tableNameCompleter = new TableNameCompleter(queryRunner); LineReader reader = new LineReader(getHistory(), tableNameCompleter)) { tableNameCompleter.populateCache(); StringBuilder buffer = new StringBuilder(); while (true) { // read a line of input from user String prompt = PROMPT_NAME + ":" + session.getSchema(); if (buffer.length() > 0) { prompt = Strings.repeat(" ", prompt.length() - 1) + "-"; } String line = reader.readLine(prompt + "> "); // add buffer to history and clear on user interrupt if (reader.interrupted()) { String partial = squeezeStatement(buffer.toString()); if (!partial.isEmpty()) { reader.getHistory().add(partial); } buffer = new StringBuilder(); continue; } // exit on EOF if (line == null) { System.out.println(); return; } // check for special commands if this is the first line if (buffer.length() == 0) { String command = line.trim(); if (command.endsWith(";")) { command = command.substring(0, command.length() - 1).trim(); } switch (command.toLowerCase(ENGLISH)) { case "exit": case "quit": return; case "help": System.out.println(); System.out.println(getHelpText()); continue; } } // not a command, add line to buffer buffer.append(line).append("\n"); // execute any complete statements String sql = buffer.toString(); StatementSplitter splitter = new StatementSplitter(sql, ImmutableSet.of(";", "\\G")); for (Statement split : splitter.getCompleteStatements()) { Optional<Object> statement = getParsedStatement(split.statement()); if (statement.isPresent() && isSessionParameterChange(statement.get())) { session = processSessionParameterChange(statement.get(), session); queryRunner.setSession(session); tableNameCompleter.populateCache(); } else { OutputFormat outputFormat = OutputFormat.ALIGNED; if (split.terminator().equals("\\G")) { outputFormat = OutputFormat.VERTICAL; } process(queryRunner, split.statement(), outputFormat, true); } reader.getHistory().add(squeezeStatement(split.statement()) + split.terminator()); } // replace buffer with trailing partial statement buffer = new StringBuilder(); String partial = splitter.getPartialStatement(); if (!partial.isEmpty()) { buffer.append(partial).append('\n'); } } } catch (IOException e) { System.err.println("Readline error: " + e.getMessage()); } }