diff -r 7e08730da258 -r 4a1864c3e867 java/sql-dk/src/main/java/info/globalcode/sql/dk/InfoLister.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/InfoLister.java	Mon Mar 04 20:15:24 2019 +0100
@@ -0,0 +1,673 @@
+/**
+ * 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.CommandArgument;
+import info.globalcode.sql.dk.configuration.Configuration;
+import info.globalcode.sql.dk.configuration.ConfigurationException;
+import info.globalcode.sql.dk.configuration.ConfigurationProvider;
+import info.globalcode.sql.dk.configuration.DatabaseDefinition;
+import info.globalcode.sql.dk.configuration.FormatterDefinition;
+import info.globalcode.sql.dk.configuration.Properties;
+import info.globalcode.sql.dk.configuration.Property;
+import info.globalcode.sql.dk.configuration.PropertyDeclaration;
+import info.globalcode.sql.dk.configuration.TunnelDefinition;
+import info.globalcode.sql.dk.formatting.ColumnsHeader;
+import info.globalcode.sql.dk.formatting.CommonProperties;
+import info.globalcode.sql.dk.formatting.FakeSqlArray;
+import info.globalcode.sql.dk.formatting.Formatter;
+import info.globalcode.sql.dk.formatting.FormatterContext;
+import info.globalcode.sql.dk.formatting.FormatterException;
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStreamReader;
+import java.io.PrintStream;
+import java.sql.Array;
+import java.sql.Driver;
+import java.sql.DriverManager;
+import java.sql.DriverPropertyInfo;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.ServiceLoader;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+import javax.sql.rowset.RowSetMetaDataImpl;
+
+/**
+ * Displays info like help, version etc.
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+public class InfoLister {
+
+	private static final Logger log = Logger.getLogger(InfoLister.class.getName());
+	/**
+	 * Fake database name for output formatting
+	 */
+	public static final String CONFIG_DB_NAME = "sqldk_configuration";
+	private final PrintStream out;
+	private final ConfigurationProvider configurationProvider;
+	private final CLIOptions options;
+	private Formatter formatter;
+
+	public InfoLister(PrintStream out, ConfigurationProvider configurationProvider, CLIOptions options) {
+		this.out = out;
+		this.configurationProvider = configurationProvider;
+		this.options = options;
+	}
+
+	public void showInfo() throws ConfigurationException, FormatterException {
+		EnumSet<InfoType> commands = options.getShowInfo();
+
+		boolean formattinNeeded = false;
+
+		for (InfoType infoType : commands) {
+			switch (infoType) {
+				case CONNECTION:
+				case JDBC_DRIVERS:
+				case JDBC_PROPERTIES:
+				case DATABASES:
+				case FORMATTERS:
+				case FORMATTER_PROPERTIES:
+				case TYPES:
+				case JAVA_PROPERTIES:
+				case ENVIRONMENT_VARIABLES:
+					formattinNeeded = true;
+					break;
+			}
+		}
+
+		if (formattinNeeded) {
+			try (Formatter f = getFormatter()) {
+				formatter = f;
+				formatter.writeStartBatch();
+				DatabaseDefinition dd = new DatabaseDefinition();
+				dd.setName(CONFIG_DB_NAME);
+				formatter.writeStartDatabase(dd);
+				showInfos(commands);
+				formatter.writeEndDatabase();
+				formatter.writeEndBatch();
+				formatter.close();
+			}
+		} else {
+			showInfos(commands);
+		}
+	}
+
+	private void showInfos(EnumSet<InfoType> commands) throws ConfigurationException, FormatterException {
+		for (InfoType infoType : commands) {
+			infoType.showInfo(this);
+		}
+	}
+
+	private void listJavaProperties() throws FormatterException, ConfigurationException {
+		ColumnsHeader header = constructHeader(new HeaderField("name", SQLType.VARCHAR), new HeaderField("value", SQLType.VARCHAR));
+		List<Object[]> data = new ArrayList<>();
+		for (Entry<Object, Object> e : System.getProperties().entrySet()) {
+			data.add(new Object[]{e.getKey(), e.getValue()});
+		}
+		printTable(formatter, header, "-- Java system properties", null, data, 0);
+	}
+
+	private void listEnvironmentVariables() throws FormatterException, ConfigurationException {
+		ColumnsHeader header = constructHeader(new HeaderField("name", SQLType.VARCHAR), new HeaderField("value", SQLType.VARCHAR));
+		List<Object[]> data = new ArrayList<>();
+		for (Entry<String, String> e : System.getenv().entrySet()) {
+			data.add(new Object[]{e.getKey(), e.getValue()});
+		}
+		printTable(formatter, header, "-- environment variables", null, data, 0);
+	}
+
+	private void listFormatters() throws ConfigurationException, FormatterException {
+		ColumnsHeader header = constructHeader(
+				new HeaderField("name", SQLType.VARCHAR),
+				new HeaderField("built_in", SQLType.BOOLEAN),
+				new HeaderField("default", SQLType.BOOLEAN),
+				new HeaderField("class_name", SQLType.VARCHAR),
+				new HeaderField("valid", SQLType.BOOLEAN));
+		List<Object[]> data = new ArrayList<>();
+
+		String defaultFormatter = configurationProvider.getConfiguration().getDefaultFormatter();
+		defaultFormatter = defaultFormatter == null ? Configuration.DEFAULT_FORMATTER : defaultFormatter;
+
+		for (FormatterDefinition fd : configurationProvider.getConfiguration().getBuildInFormatters()) {
+			data.add(new Object[]{fd.getName(), true, defaultFormatter.equals(fd.getName()), fd.getClassName(), isInstantiable(fd)});
+		}
+
+		for (FormatterDefinition fd : configurationProvider.getConfiguration().getFormatters()) {
+			data.add(new Object[]{fd.getName(), false, defaultFormatter.equals(fd.getName()), fd.getClassName(), isInstantiable(fd)});
+		}
+
+		printTable(formatter, header, "-- configured and built-in output formatters", null, data);
+	}
+
+	private boolean isInstantiable(FormatterDefinition fd) {
+		try {
+			try (ByteArrayOutputStream testStream = new ByteArrayOutputStream()) {
+				fd.getInstance(new FormatterContext(testStream, new Properties(0)));
+				return true;
+			}
+		} catch (Exception e) {
+			log.log(Level.SEVERE, "Unable to create an instance of formatter: " + fd.getName(), e);
+			return false;
+		}
+	}
+
+	private void listFormatterProperties() throws FormatterException, ConfigurationException {
+		for (String formatterName : options.getFormatterNamesToListProperties()) {
+			listFormatterProperties(formatterName);
+		}
+	}
+
+	private void listFormatterProperties(String formatterName) throws FormatterException, ConfigurationException {
+		FormatterDefinition fd = configurationProvider.getConfiguration().getFormatter(formatterName);
+		try {
+
+			// currently only for debugging purposes
+			// TODO: introduce --info-lister-property or generic filtering capability in printTable() ?
+			boolean printDeclaredIn = options.getFormatterProperties().getBoolean("InfoLister:print:declared_in", false);
+
+			List<HeaderField> headerFields = new ArrayList<>();
+			headerFields.add(new HeaderField("name", SQLType.VARCHAR));
+			headerFields.add(new HeaderField("type", SQLType.VARCHAR));
+			headerFields.add(new HeaderField("default", SQLType.VARCHAR));
+			headerFields.add(new HeaderField("description", SQLType.VARCHAR));
+			if (printDeclaredIn) {
+				headerFields.add(new HeaderField("declared_in", SQLType.VARCHAR));
+			}
+
+			ColumnsHeader header = constructHeader(headerFields.toArray(new HeaderField[0]));
+
+			Map<String, Object[]> data = new HashMap<>();
+			Class<Formatter> formatterClass = (Class<Formatter>) Class.forName(fd.getClassName());
+			List<Class<? extends Formatter>> hierarchy = Functions.getClassHierarchy(formatterClass, Formatter.class);
+			Collections.reverse(hierarchy);
+			hierarchy.stream().forEach((c) -> {
+				for (PropertyDeclaration p : Functions.getPropertyDeclarations(c)) {
+					data.put(p.name(), propertyDeclarationToRow(p, c, printDeclaredIn));
+				}
+			});
+
+			List<Parameter> parameters = new ArrayList<>();
+			parameters.add(new NamedParameter("formatter", formatterName, SQLType.VARCHAR));
+
+			printTable(formatter, header, "-- formatter properties", parameters, new ArrayList<>(data.values()));
+		} catch (ClassNotFoundException e) {
+			throw new ConfigurationException("Unable to find class " + fd.getClassName() + " of formatter" + fd.getName(), e);
+		}
+	}
+
+	private static Object[] propertyDeclarationToRow(PropertyDeclaration p, Class formatterClass, boolean printDeclaredIn) {
+		List list = new ArrayList();
+
+		list.add(p.name());
+		list.add(CommonProperties.getSimpleTypeName(p.type()));
+		list.add(p.defaultValue());
+		list.add(p.description());
+		if (printDeclaredIn) {
+			list.add(formatterClass.getName());
+		}
+
+		return list.toArray();
+	}
+
+	private void listTypes() throws FormatterException, ConfigurationException {
+		ColumnsHeader header = constructHeader(new HeaderField("name", SQLType.VARCHAR), new HeaderField("code", SQLType.INTEGER));
+		List<Object[]> data = new ArrayList<>();
+		for (SQLType sqlType : SQLType.values()) {
+			data.add(new Object[]{sqlType.name(), sqlType.getCode()});
+		}
+		printTable(formatter, header, "-- data types", null, data);
+		log.log(Level.INFO, "Type names in --types option are case insensitive");
+	}
+
+	private void listDatabases() throws ConfigurationException, FormatterException {
+		ColumnsHeader header = constructHeader(
+				new HeaderField("database_name", SQLType.VARCHAR),
+				new HeaderField("user_name", SQLType.VARCHAR),
+				new HeaderField("database_url", SQLType.VARCHAR));
+		List<Object[]> data = new ArrayList<>();
+
+		final List<DatabaseDefinition> configuredDatabases = configurationProvider.getConfiguration().getDatabases();
+		if (configuredDatabases.isEmpty()) {
+			log.log(Level.WARNING, "No databases are configured.");
+		} else {
+			for (DatabaseDefinition dd : configuredDatabases) {
+				data.add(new Object[]{dd.getName(), dd.getUserName(), dd.getUrl()});
+
+				final TunnelDefinition tunnel = dd.getTunnel();
+				if (tunnel != null) {
+					log.log(Level.INFO, "Tunnel command: {0}", tunnel.getCommand());
+					for (CommandArgument ca : Functions.notNull(tunnel.getArguments())) {
+						log.log(Level.INFO, "\targument: {0}/{1}", new Object[]{ca.getType(), ca.getValue()});
+					}
+				}
+
+			}
+		}
+
+		printTable(formatter, header, "-- configured databases", null, data);
+	}
+
+	private void listJdbcDrivers() throws FormatterException, ConfigurationException {
+		ColumnsHeader header = constructHeader(
+				new HeaderField("class", SQLType.VARCHAR),
+				new HeaderField("version", SQLType.VARCHAR),
+				new HeaderField("major", SQLType.INTEGER),
+				new HeaderField("minor", SQLType.INTEGER),
+				new HeaderField("jdbc_compliant", SQLType.BOOLEAN));
+		List<Object[]> data = new ArrayList<>();
+
+		final ServiceLoader<Driver> drivers = ServiceLoader.load(Driver.class);
+		for (Driver d : drivers) {
+			data.add(new Object[]{
+				d.getClass().getName(),
+				d.getMajorVersion() + "." + d.getMinorVersion(),
+				d.getMajorVersion(),
+				d.getMinorVersion(),
+				d.jdbcCompliant()
+			});
+		}
+
+		printTable(formatter, header, "-- discovered JDBC drivers (available on the CLASSPATH)", null, data);
+	}
+
+	private void listJdbcProperties() throws FormatterException, ConfigurationException {
+		for (String dbName : options.getDatabaseNamesToListProperties()) {
+			ColumnsHeader header = constructHeader(
+					new HeaderField("property_name", SQLType.VARCHAR),
+					new HeaderField("required", SQLType.BOOLEAN),
+					new HeaderField("choices", SQLType.ARRAY),
+					new HeaderField("configured_value", SQLType.VARCHAR),
+					new HeaderField("description", SQLType.VARCHAR));
+			List<Object[]> data = new ArrayList<>();
+
+			DatabaseDefinition dd = configurationProvider.getConfiguration().getDatabase(dbName);
+
+			Driver driver = findDriver(dd);
+
+			if (driver == null) {
+				log.log(Level.WARNING, "No JDBC driver was found for DB: {0} with URL: {1}", new Object[]{dd.getName(), dd.getUrl()});
+			} else {
+				log.log(Level.INFO, "For DB: {0} was found JDBC driver: {1}", new Object[]{dd.getName(), driver.getClass().getName()});
+
+				try {
+					DriverPropertyInfo[] propertyInfos = driver.getPropertyInfo(dd.getUrl(), dd.getProperties().getJavaProperties());
+
+					Set<String> standardProperties = new HashSet<>();
+
+					for (DriverPropertyInfo pi : propertyInfos) {
+						Array choices = new FakeSqlArray(pi.choices, SQLType.VARCHAR);
+						data.add(new Object[]{
+							pi.name,
+							pi.required,
+							choices.getArray() == null ? "" : choices,
+							pi.value == null ? "" : pi.value,
+							pi.description
+						});
+						standardProperties.add(pi.name);
+					}
+
+					for (Property p : dd.getProperties()) {
+						if (!standardProperties.contains(p.getName())) {
+							data.add(new Object[]{
+								p.getName(),
+								"",
+								"",
+								p.getValue(),
+								""
+							});
+							log.log(Level.WARNING, "Your configuration contains property „{0}“ not declared by the JDBC driver.", p.getName());
+						}
+					}
+
+				} catch (SQLException e) {
+					log.log(Level.WARNING, "Error during getting property infos.", e);
+				}
+
+				List<Parameter> parameters = new ArrayList<>();
+				parameters.add(new NamedParameter("database", dbName, SQLType.VARCHAR));
+				parameters.add(new NamedParameter("driver_class", driver.getClass().getName(), SQLType.VARCHAR));
+				parameters.add(new NamedParameter("driver_major_version", driver.getMajorVersion(), SQLType.INTEGER));
+				parameters.add(new NamedParameter("driver_minor_version", driver.getMinorVersion(), SQLType.INTEGER));
+
+				printTable(formatter, header, "-- configured and configurable JDBC driver properties", parameters, data);
+			}
+		}
+
+	}
+
+	private Driver findDriver(DatabaseDefinition dd) {
+		final ServiceLoader<Driver> drivers = ServiceLoader.load(Driver.class);
+		for (Driver d : drivers) {
+			try {
+				if (d.acceptsURL(dd.getUrl())) {
+					return d;
+				}
+			} catch (SQLException e) {
+				log.log(Level.WARNING, "Error during finding JDBC driver for: " + dd.getName(), e);
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Parallelism for connection testing – maximum concurrent database connections.
+	 */
+	private static final int TESTING_THREAD_COUNT = 64;
+	/**
+	 * Time limit for all connection testing threads – particular timeouts per connection will be
+	 * much smaller.
+	 */
+	private static final long TESTING_AWAIT_LIMIT = 1;
+	private static final TimeUnit TESTING_AWAIT_UNIT = TimeUnit.DAYS;
+
+	private void testConnections() throws FormatterException, ConfigurationException {
+		ColumnsHeader header = constructHeader(
+				new HeaderField("database_name", SQLType.VARCHAR),
+				new HeaderField("configured", SQLType.BOOLEAN),
+				new HeaderField("connected", SQLType.BOOLEAN),
+				new HeaderField("product_name", SQLType.VARCHAR),
+				new HeaderField("product_version", SQLType.VARCHAR));
+
+		log.log(Level.FINE, "Testing DB connections in {0} threads", TESTING_THREAD_COUNT);
+
+		ExecutorService es = Executors.newFixedThreadPool(TESTING_THREAD_COUNT);
+
+		final Formatter currentFormatter = formatter;
+
+		printHeader(currentFormatter, header, "-- database configuration and connectivity test", null);
+
+		for (final String dbName : options.getDatabaseNamesToTest()) {
+			preloadDriver(dbName);
+		}
+
+		for (final String dbName : options.getDatabaseNamesToTest()) {
+			es.submit(() -> {
+				final Object[] row = testConnection(dbName);
+				synchronized (currentFormatter) {
+					printRow(currentFormatter, row);
+				}
+			}
+			);
+		}
+
+		es.shutdown();
+
+		try {
+			log.log(Level.FINEST, "Waiting for test results: {0} {1}", new Object[]{TESTING_AWAIT_LIMIT, TESTING_AWAIT_UNIT.name()});
+			boolean finished = es.awaitTermination(TESTING_AWAIT_LIMIT, TESTING_AWAIT_UNIT);
+			if (finished) {
+				log.log(Level.FINEST, "All testing threads finished in time limit.");
+			} else {
+				throw new FormatterException("Exceeded total time limit for test threads – this should never happen");
+			}
+		} catch (InterruptedException e) {
+			throw new FormatterException("Interrupted while waiting for test results", e);
+		}
+
+		printFooter(currentFormatter);
+	}
+
+	/**
+	 * JDBC driver classes should be preloaded in single thread to avoid deadlocks while doing
+	 * {@linkplain DriverManager#registerDriver(java.sql.Driver)} during parallel connections.
+	 *
+	 * @param dbName
+	 */
+	private void preloadDriver(String dbName) {
+		try {
+			DatabaseDefinition dd = configurationProvider.getConfiguration().getDatabase(dbName);
+			Driver driver = findDriver(dd);
+			if (driver == null) {
+				log.log(Level.WARNING, "No Driver found for DB: {0}", dbName);
+			} else {
+				log.log(Level.FINEST, "Driver preloading for DB: {0} was successfull", dbName);
+			}
+		} catch (Exception e) {
+			LogRecord r = new LogRecord(Level.WARNING, "Failed to preload the Driver for DB: {0}");
+			r.setParameters(new Object[]{dbName});
+			r.setThrown(e);
+			log.log(r);
+		}
+	}
+
+	private Object[] testConnection(String dbName) {
+		log.log(Level.FINE, "Testing connection to database: {0}", dbName);
+
+		boolean succesfullyConnected = false;
+		boolean succesfullyConfigured = false;
+		String productName = null;
+		String productVersion = null;
+
+		try {
+			DatabaseDefinition dd = configurationProvider.getConfiguration().getDatabase(dbName);
+			log.log(Level.FINE, "Database definition was loaded from configuration");
+			succesfullyConfigured = true;
+			try (DatabaseConnection dc = dd.connect(options.getDatabaseProperties())) {
+				succesfullyConnected = dc.test();
+				productName = dc.getProductName();
+				productVersion = dc.getProductVersion();
+			}
+			log.log(Level.FINE, "Database connection test was successful");
+		} catch (ConfigurationException | SQLException | RuntimeException e) {
+			log.log(Level.SEVERE, "Error during testing connection " + dbName, e);
+		}
+
+		return new Object[]{dbName, succesfullyConfigured, succesfullyConnected, productName, productVersion};
+	}
+
+	private void printResource(String fileName) {
+		try (BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream(fileName)))) {
+			while (true) {
+				String line = reader.readLine();
+				if (line == null) {
+					break;
+				} else {
+					println(line);
+				}
+			}
+		} catch (Exception e) {
+			log.log(Level.SEVERE, "Unable to print this info. Please see our website for it: " + Constants.WEBSITE, e);
+		}
+	}
+
+	private void println(String line) {
+		out.println(line);
+	}
+
+	private void printTable(Formatter formatter, ColumnsHeader header, String sql, List<Parameter> parameters, List<Object[]> data) throws ConfigurationException, FormatterException {
+		printTable(formatter, header, sql, parameters, data, null);
+	}
+
+	private void printTable(Formatter formatter, ColumnsHeader header, String sql, List<Parameter> parameters, List<Object[]> data, final Integer sortByColumn) throws ConfigurationException, FormatterException {
+		printHeader(formatter, header, sql, parameters);
+
+		if (sortByColumn != null) {
+			Collections.sort(data, new Comparator<Object[]>() {
+
+				@Override
+				public int compare(Object[] o1, Object[] o2) {
+					String s1 = String.valueOf(o1[sortByColumn]);
+					String s2 = String.valueOf(o2[sortByColumn]);
+					return s1.compareTo(s2);
+				}
+			});
+		}
+
+		for (Object[] row : data) {
+			printRow(formatter, row);
+		}
+
+		printFooter(formatter);
+	}
+
+	private void printHeader(Formatter formatter, ColumnsHeader header, String sql, List<Parameter> parameters) {
+		formatter.writeStartStatement();
+		if (sql != null) {
+			formatter.writeQuery(sql);
+			if (parameters != null) {
+				formatter.writeParameters(parameters);
+			}
+		}
+		formatter.writeStartResultSet(header);
+	}
+
+	private void printRow(Formatter formatter, Object[] row) {
+		formatter.writeStartRow();
+		for (Object cell : row) {
+			formatter.writeColumnValue(cell);
+		}
+		formatter.writeEndRow();
+	}
+
+	private void printFooter(Formatter formatter) {
+		formatter.writeEndResultSet();
+		formatter.writeEndStatement();
+	}
+
+	private Formatter getFormatter() throws ConfigurationException, FormatterException {
+		String formatterName = options.getFormatterName();
+		formatterName = formatterName == null ? Configuration.DEFAULT_FORMATTER_PREFETCHING : formatterName;
+		FormatterDefinition fd = configurationProvider.getConfiguration().getFormatter(formatterName);
+		FormatterContext context = new FormatterContext(out, options.getFormatterProperties());
+		return fd.getInstance(context);
+	}
+
+	private ColumnsHeader constructHeader(HeaderField... fields) throws FormatterException {
+		try {
+			RowSetMetaDataImpl metaData = new RowSetMetaDataImpl();
+			metaData.setColumnCount(fields.length);
+
+			for (int i = 0; i < fields.length; i++) {
+				HeaderField hf = fields[i];
+				int sqlIndex = i + 1;
+				metaData.setColumnName(sqlIndex, hf.name);
+				metaData.setColumnLabel(sqlIndex, hf.name);
+				metaData.setColumnType(sqlIndex, hf.type.getCode());
+				metaData.setColumnTypeName(sqlIndex, hf.type.name());
+			}
+
+			return new ColumnsHeader(metaData);
+		} catch (SQLException e) {
+			throw new FormatterException("Error while constructing table headers", e);
+		}
+	}
+
+	private static class HeaderField {
+
+		String name;
+		SQLType type;
+
+		public HeaderField(String name, SQLType type) {
+			this.name = name;
+			this.type = type;
+		}
+	}
+
+	public enum InfoType {
+
+		HELP {
+			@Override
+			public void showInfo(InfoLister infoLister) {
+				infoLister.printResource(Constants.HELP_FILE);
+			}
+		},
+		VERSION {
+			@Override
+			public void showInfo(InfoLister infoLister) {
+				infoLister.printResource(Constants.VERSION_FILE);
+			}
+		},
+		LICENSE {
+			@Override
+			public void showInfo(InfoLister infoLister) {
+				infoLister.printResource(Constants.LICENSE_FILE);
+			}
+		},
+		JAVA_PROPERTIES {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.listJavaProperties();
+			}
+		},
+		ENVIRONMENT_VARIABLES {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.listEnvironmentVariables();
+			}
+		},
+		FORMATTERS {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.listFormatters();
+			}
+		},
+		FORMATTER_PROPERTIES {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.listFormatterProperties();
+			}
+		},
+		TYPES {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.listTypes();
+			}
+		},
+		JDBC_DRIVERS {
+			@Override
+			public void showInfo(InfoLister infoLister) throws ConfigurationException, FormatterException {
+				infoLister.listJdbcDrivers();
+			}
+		},
+		JDBC_PROPERTIES {
+			@Override
+			public void showInfo(InfoLister infoLister) throws ConfigurationException, FormatterException {
+				infoLister.listJdbcProperties();
+			}
+		},
+		DATABASES {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.listDatabases();
+			}
+		},
+		CONNECTION {
+			@Override
+			public void showInfo(InfoLister infoLister) throws FormatterException, ConfigurationException {
+				infoLister.testConnections();
+			}
+		};
+
+		public abstract void showInfo(InfoLister infoLister) throws ConfigurationException, FormatterException;
+	}
+}