franta-hg@16: /**
franta-hg@16:  * SQL-DK
franta-hg@16:  * Copyright © 2013 František Kučera (frantovo.cz)
franta-hg@16:  *
franta-hg@16:  * This program is free software: you can redistribute it and/or modify
franta-hg@16:  * it under the terms of the GNU General Public License as published by
franta-hg@16:  * the Free Software Foundation, either version 3 of the License, or
franta-hg@16:  * (at your option) any later version.
franta-hg@16:  *
franta-hg@16:  * This program is distributed in the hope that it will be useful,
franta-hg@16:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
franta-hg@16:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
franta-hg@16:  * GNU General Public License for more details.
franta-hg@16:  *
franta-hg@16:  * You should have received a copy of the GNU General Public License
franta-hg@16:  * along with this program. If not, see <http://www.gnu.org/licenses/>.
franta-hg@16:  */
franta-hg@14: package info.globalcode.sql.dk;
franta-hg@14: 
franta-hg@67: import info.globalcode.sql.dk.configuration.Configuration;
franta-hg@65: import info.globalcode.sql.dk.configuration.ConfigurationException;
franta-hg@26: import info.globalcode.sql.dk.configuration.ConfigurationProvider;
franta-hg@65: import info.globalcode.sql.dk.configuration.DatabaseDefinition;
franta-hg@67: import info.globalcode.sql.dk.configuration.FormatterDefinition;
franta-hg@67: import static info.globalcode.sql.dk.Functions.rpad;
franta-hg@17: import java.io.BufferedReader;
franta-hg@17: import java.io.InputStreamReader;
franta-hg@14: import java.io.PrintStream;
franta-hg@65: import java.sql.SQLException;
franta-hg@14: import java.util.EnumSet;
franta-hg@66: import java.util.List;
franta-hg@17: import java.util.logging.Level;
franta-hg@17: import java.util.logging.Logger;
franta-hg@14: 
franta-hg@14: /**
franta-hg@14:  * Displays info like help, version etc.
franta-hg@14:  *
franta-hg@14:  * @author Ing. František Kučera (frantovo.cz)
franta-hg@14:  */
franta-hg@14: public class InfoLister {
franta-hg@14: 
franta-hg@17: 	private static final Logger log = Logger.getLogger(InfoLister.class.getName());
franta-hg@17: 	private PrintStream out;
franta-hg@20: 	private ConfigurationProvider configurationProvider;
franta-hg@17: 
franta-hg@20: 	public InfoLister(PrintStream out, ConfigurationProvider configurationProvider) {
franta-hg@17: 		this.out = out;
franta-hg@20: 		this.configurationProvider = configurationProvider;
franta-hg@17: 	}
franta-hg@17: 
franta-hg@66: 	public void showInfo(CLIOptions options) throws ConfigurationException {
franta-hg@15: 		EnumSet<CLIOptions.INFO_TYPE> infoTypes = options.getShowInfo();
franta-hg@14: 		for (CLIOptions.INFO_TYPE infoType : infoTypes) {
franta-hg@14: 			switch (infoType) {
franta-hg@14: 				/**
franta-hg@14: 				 * TODO: implement show info
franta-hg@14: 				 */
franta-hg@14: 				case FORMATTERS:
franta-hg@67: 					for (FormatterDefinition fd : configurationProvider.getConfiguration().getBuildInFormatters()) {
franta-hg@67: 						log.log(Level.INFO, "Built-in formatter:   {0} implemented by class: {1}", new Object[]{rpad(fd.getName(), 16), fd.getClassName()});
franta-hg@67: 					}
franta-hg@67: 
franta-hg@67: 					List<FormatterDefinition> configuredFormatters = configurationProvider.getConfiguration().getFormatters();
franta-hg@67: 					for (FormatterDefinition fd : configuredFormatters) {
franta-hg@67: 						log.log(Level.INFO, "Configured formatter: {0} implemented by class: {1}", new Object[]{rpad(fd.getName(), 16), fd.getClassName()});
franta-hg@67: 					}
franta-hg@67: 					if (configuredFormatters.isEmpty()) {
franta-hg@67: 						log.log(Level.INFO, "No other formatters are configured");
franta-hg@67: 					}
franta-hg@67: 
franta-hg@67: 					String configuredDefaultFormatter = configurationProvider.getConfiguration().getDefaultFormatter();
franta-hg@67: 					if (configuredDefaultFormatter == null) {
franta-hg@67: 						log.log(Level.INFO, "Built-in default formatter: {0}", Configuration.DEFAULT_FORMATTER);
franta-hg@67: 					} else {
franta-hg@67: 						log.log(Level.INFO, "Configured default formatter: {0}", configuredDefaultFormatter);
franta-hg@67: 					}
franta-hg@14: 					break;
franta-hg@14: 				case HELP:
franta-hg@19: 					printResource(Constants.HELP_FILE);
franta-hg@14: 					break;
franta-hg@14: 				case LICENSE:
franta-hg@18: 					printResource(Constants.LICENSE_FILE);
franta-hg@14: 					break;
franta-hg@14: 				case TYPES:
franta-hg@17: 					println("TODO: list supported types");
franta-hg@14: 					break;
franta-hg@14: 				case VERSION:
franta-hg@18: 					printResource(Constants.VERSION_FILE);
franta-hg@14: 					break;
franta-hg@15: 				case DATABASES:
franta-hg@66: 					final List<DatabaseDefinition> configuredDatabases = configurationProvider.getConfiguration().getDatabases();
franta-hg@66: 					if (configuredDatabases.isEmpty()) {
franta-hg@66: 						log.log(Level.WARNING, "No databases are configured.");
franta-hg@66: 					} else {
franta-hg@66: 						for (DatabaseDefinition dd : configuredDatabases) {
franta-hg@66: 							log.log(Level.INFO, "Configured database: {0}", dd.getName());
franta-hg@66: 						}
franta-hg@66: 					}
franta-hg@15: 					break;
franta-hg@15: 				case CONNECTION:
franta-hg@65: 					boolean connectionTestResult = false;
franta-hg@65: 					String dbName = options.getDatabaseNameToTest();
franta-hg@65: 					log.log(Level.FINE, "Testing connection to database: {0}", dbName);
franta-hg@65: 					try {
franta-hg@65: 						DatabaseDefinition dd = configurationProvider.getConfiguration().getDatabase(dbName);
franta-hg@65: 						if (dd == null) {
franta-hg@65: 							log.log(Level.SEVERE, "No database with this name is configured: {0}", dbName);
franta-hg@65: 						} else {
franta-hg@65: 							log.log(Level.FINE, "Database definition was loaded from configuration");
franta-hg@65: 							DatabaseConnection dc = dd.connect();
franta-hg@65: 							connectionTestResult = dc.test();
franta-hg@65: 						}
franta-hg@65: 					} catch (ConfigurationException | SQLException e) {
franta-hg@65: 						log.log(Level.SEVERE, "Error during testing connection", e);
franta-hg@65: 					}
franta-hg@65: 					log.log(Level.INFO, "Connection test result: {0}", connectionTestResult ? "success" : "failure");
franta-hg@15: 					break;
franta-hg@14: 				default:
franta-hg@14: 					throw new IllegalArgumentException("Unsupported INFO_TYPE: " + infoType);
franta-hg@14: 			}
franta-hg@14: 		}
franta-hg@14: 	}
franta-hg@17: 
franta-hg@18: 	private void printResource(String fileName) {
franta-hg@18: 		try (BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream(fileName)))) {
franta-hg@17: 			while (true) {
franta-hg@18: 				String line = reader.readLine();
franta-hg@17: 				if (line == null) {
franta-hg@17: 					break;
franta-hg@17: 				} else {
franta-hg@17: 					println(line);
franta-hg@17: 				}
franta-hg@17: 			}
franta-hg@17: 		} catch (Exception e) {
franta-hg@18: 			log.log(Level.SEVERE, "Unable to print this info. Please see our website for it: " + Constants.WEBSITE, e);
franta-hg@17: 		}
franta-hg@17: 	}
franta-hg@17: 
franta-hg@17: 	private void println(String line) {
franta-hg@17: 		out.println(line);
franta-hg@17: 	}
franta-hg@14: }