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());
}
}
