diff -r 7e08730da258 -r 4a1864c3e867 java/sql-dk/src/main/java/info/globalcode/sql/dk/CLIStarter.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/CLIStarter.java	Mon Mar 04 20:15:24 2019 +0100
@@ -0,0 +1,274 @@
+/**
+ * SQL-DK
+ * Copyright © 2013 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package info.globalcode.sql.dk;
+
+import info.globalcode.sql.dk.configuration.ConfigurationProvider;
+import info.globalcode.sql.dk.CLIOptions.MODE;
+import info.globalcode.sql.dk.batch.Batch;
+import info.globalcode.sql.dk.batch.BatchDecoder;
+import info.globalcode.sql.dk.batch.BatchException;
+import info.globalcode.sql.dk.batch.BatchEncoder;
+import info.globalcode.sql.dk.configuration.Configuration;
+import info.globalcode.sql.dk.configuration.ConfigurationException;
+import info.globalcode.sql.dk.configuration.DatabaseDefinition;
+import info.globalcode.sql.dk.configuration.FormatterDefinition;
+import info.globalcode.sql.dk.configuration.Loader;
+import info.globalcode.sql.dk.configuration.NameIdentified;
+import info.globalcode.sql.dk.configuration.PropertyDeclaration;
+import info.globalcode.sql.dk.formatting.Formatter;
+import info.globalcode.sql.dk.formatting.FormatterContext;
+import info.globalcode.sql.dk.formatting.FormatterException;
+import info.globalcode.sql.dk.jmx.ConnectionManagement;
+import info.globalcode.sql.dk.jmx.ManagementUtils;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.sql.SQLException;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+
+/**
+ * Entry point of the command line interface of SQL-DK.
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class CLIStarter implements ConfigurationProvider {
+
+	// help:exit-codes
+	public static final int EXIT_SUCCESS = 0; // doc:success
+	public static final int EXIT_UNEXPECTED_ERROR = 1; // doc:unexpected error (probably bug)
+	// 2 is reserved: http://www.tldp.org/LDP/abs/html/exitcodes.html#EXITCODESREF
+	public static final int EXIT_SQL_ERROR = 3; // doc:SQL error
+	public static final int EXIT_CLI_PARSE_ERROR = 4; // doc:CLI options parse error
+	public static final int EXIT_CLI_VALIDATE_ERROR = 5; // doc:CLI options validation error
+	public static final int EXIT_CONFIGURATION_ERROR = 6; // doc:configuration error
+	public static final int EXIT_FORMATTING_ERROR = 7; // doc:formatting error
+	public static final int EXIT_BATCH_ERROR = 8; // doc:batch error
+	private static final Logger log = Logger.getLogger(CLIStarter.class.getName());
+	private final CLIOptions options;
+	private final Loader configurationLoader = new Loader();
+	private Configuration configuration;
+
+	public static void main(String[] args) {
+		log.log(Level.FINE, "Starting " + Constants.PROGRAM_NAME);
+		int exitCode;
+
+		if (args.length == 0) {
+			args = new String[]{CLIParser.Tokens.INFO_HELP};
+		}
+
+		try {
+			CLIParser parser = new CLIParser();
+			CLIOptions options = parser.parseOptions(args, System.in);
+			options.validate();
+			CLIStarter starter = new CLIStarter(options);
+			starter.installDefaultConfiguration();
+			starter.process();
+			log.log(Level.FINE, "All done");
+			exitCode = EXIT_SUCCESS;
+		} catch (CLIParserException e) {
+			log.log(Level.SEVERE, "Unable to parse CLI options", e);
+			exitCode = EXIT_CLI_PARSE_ERROR;
+		} catch (InvalidOptionsException e) {
+			log.log(Level.SEVERE, "Invalid CLI options", e);
+			for (InvalidOptionsException.OptionProblem p : e.getProblems()) {
+				LogRecord r = new LogRecord(Level.SEVERE, "Option problem: {0}");
+				r.setThrown(p.getException());
+				r.setParameters(new Object[]{p.getDescription()});
+				log.log(r);
+			}
+			exitCode = EXIT_CLI_VALIDATE_ERROR;
+		} catch (ConfigurationException e) {
+			log.log(Level.SEVERE, "Configuration problem", e);
+			exitCode = EXIT_CONFIGURATION_ERROR;
+		} catch (SQLException e) {
+			log.log(Level.SEVERE, "SQL problem", e);
+			exitCode = EXIT_SQL_ERROR;
+		} catch (FormatterException e) {
+			log.log(Level.SEVERE, "Formatting problem", e);
+			exitCode = EXIT_FORMATTING_ERROR;
+		} catch (BatchException e) {
+			log.log(Level.SEVERE, "Batch problem", e);
+			exitCode = EXIT_BATCH_ERROR;
+		}
+
+		System.exit(exitCode);
+	}
+
+	public CLIStarter(CLIOptions options) {
+		this.options = options;
+	}
+
+	private void process() throws ConfigurationException, SQLException, FormatterException, BatchException {
+		MODE mode = options.getMode();
+
+		/** Show info */
+		if (!options.getShowInfo().isEmpty()) {
+			PrintStream infoOut = mode == MODE.JUST_SHOW_INFO ? System.out : System.err;
+			InfoLister infoLister = new InfoLister(infoOut, this, options);
+			infoLister.showInfo();
+		}
+
+		switch (mode) {
+			case QUERY_NOW:
+				processQueryNow();
+				break;
+			case PREPARE_BATCH:
+				processPrepareBatch();
+				break;
+			case EXECUTE_BATCH:
+				processExecuteBatch();
+				break;
+			case JUST_SHOW_INFO:
+				// already done above
+				break;
+			default:
+				log.log(Level.SEVERE, "Unsupported mode: {0}", mode);
+				break;
+		}
+
+		generateBashCompletion();
+	}
+
+	private void processQueryNow() throws ConfigurationException, SQLException, FormatterException {
+		DatabaseDefinition dd = getConfiguration().getDatabase(options.getDatabaseName());
+		FormatterDefinition fd = configuration.getFormatter(options.getFormatterName());
+		ConnectionManagement jmxBean = ManagementUtils.registerMBean(dd.getName());
+
+		try (DatabaseConnection c = dd.connect(options.getDatabaseProperties(), jmxBean)) {
+			log.log(Level.FINE, "Database connected");
+			try (Formatter f = fd.getInstance(new FormatterContext(options.getOutputStream(), options.getFormatterProperties()))) {
+				c.executeQuery(options.getSQLCommand(), f);
+			}
+		}
+	}
+
+	private void processPrepareBatch() throws BatchException {
+		BatchEncoder enc = new BatchEncoder();
+		int length = enc.encode(options.getSQLCommand(), options.getOutputStream());
+		log.log(Level.FINE, "Prepared batch size: {0} bytes", length);
+	}
+
+	private void processExecuteBatch() throws ConfigurationException, SQLException, FormatterException, BatchException {
+		BatchDecoder dec = new BatchDecoder();
+		Batch b = dec.decode(options.getInputStream());
+
+		DatabaseDefinition dd = getConfiguration().getDatabase(options.getDatabaseName());
+		FormatterDefinition fd = configuration.getFormatter(options.getFormatterName());
+		ConnectionManagement jmxBean = ManagementUtils.registerMBean(dd.getName());
+
+		try (DatabaseConnection c = dd.connect(options.getDatabaseProperties(), jmxBean)) {
+			log.log(Level.FINE, "Database connected");
+			try (Formatter f = fd.getInstance(new FormatterContext(options.getOutputStream(), options.getFormatterProperties()))) {
+				c.executeBatch(b, f);
+			}
+		}
+	}
+
+	@Override
+	public Configuration getConfiguration() throws ConfigurationException {
+		if (configuration == null) {
+			configuration = configurationLoader.loadConfiguration();
+		}
+		return configuration;
+	}
+
+	private void installDefaultConfiguration() throws ConfigurationException {
+		Constants.DIR.mkdir();
+
+		if (Constants.CONFIG_FILE.exists()) {
+			log.log(Level.FINER, "Config file already exists: {0}", Constants.CONFIG_FILE);
+		} else {
+			try {
+				Functions.installResource(Constants.EXAMPLE_CONFIG_FILE, Constants.CONFIG_FILE);
+				log.log(Level.FINE, "Installing default config file: {0}", Constants.CONFIG_FILE);
+			} catch (IOException e) {
+				throw new ConfigurationException("Unable to write example configuration to " + Constants.CONFIG_FILE, e);
+			}
+		}
+	}
+
+	private void generateBashCompletion() {
+		if (configuration == null) {
+			log.log(Level.FINER, "Not writing Bash completion helper files. In order to generate these files please run some command which requires configuration.");
+		} else {
+			try {
+				File dir = new File(Constants.DIR, "bash-completion");
+				dir.mkdir();
+				writeBashCompletionHelperFile(configuration.getDatabases(), new File(dir, "databases"));
+				writeBashCompletionHelperFile(configuration.getAllFormatters(), new File(dir, "formatters"));
+				writeBashCompletionHelperFileForFormatterProperties(new File(dir, "formatter-properties"));
+			} catch (Exception e) {
+				log.log(Level.WARNING, "Unable to generate Bash completion helper files", e);
+			}
+		}
+	}
+
+	private void writeBashCompletionHelperFile(Collection<? extends NameIdentified> items, File target) throws FileNotFoundException {
+		if (Constants.CONFIG_FILE.lastModified() > target.lastModified()) {
+			try (PrintWriter fw = new PrintWriter(target)) {
+				for (NameIdentified dd : items) {
+					fw.println(dd.getName());
+				}
+				fw.close();
+				log.log(Level.FINE, "Bash completion helper file was written: {0}", target);
+			}
+		} else {
+			log.log(Level.FINER, "Not writing Bash completion helper file: {0} because configuration {1} has not been changed", new Object[]{target, Constants.CONFIG_FILE});
+		}
+	}
+
+	private void writeBashCompletionHelperFileForFormatterProperties(File formattersDir) throws ClassNotFoundException, FileNotFoundException {
+		if (Constants.CONFIG_FILE.lastModified() > formattersDir.lastModified()) {
+			// TODO: delete old directory
+			formattersDir.mkdir();
+			for (FormatterDefinition fd : configuration.getAllFormatters()) {
+				File formatterDir = new File(formattersDir, fd.getName());
+				formatterDir.mkdir();
+
+				Class<Formatter> formatterClass = (Class<Formatter>) Class.forName(fd.getClassName());
+				List<Class<? extends Formatter>> hierarchy = Functions.getClassHierarchy(formatterClass, Formatter.class);
+				Collections.reverse(hierarchy);
+				for (Class<? extends Formatter> c : hierarchy) {
+					for (PropertyDeclaration p : Functions.getPropertyDeclarations(c)) {
+						File propertyDir = new File(formatterDir, p.name());
+						propertyDir.mkdir();
+						File choicesFile = new File(propertyDir, "choices");
+						try (PrintWriter fw = new PrintWriter(choicesFile)) {
+							// TODO: refactor, move
+							if (p.type() == Boolean.class) {
+								fw.println("true");
+								fw.println("false");
+							}
+						}
+					}
+				}
+			}
+			log.log(Level.FINE, "Bash completion helper files was written in: {0}", formattersDir);
+		} else {
+			log.log(Level.FINER, "Not writing Bash completion helper directory: {0} because configuration {1} has not been changed", new Object[]{formattersDir, Constants.CONFIG_FILE});
+		}
+
+	}
+}