java/sql-dk/src/info/globalcode/sql/dk/InfoLister.java
author František Kučera <franta-hg@frantovo.cz>
Mon, 16 Dec 2013 20:39:07 +0100
branchv_0
changeset 18 7900bb1666f6
parent 17 d8ab8aece6f2
child 19 873669135d97
permissions -rw-r--r--
version info: option --version
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/**
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 * SQL-DK
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 * Copyright © 2013 František Kučera (frantovo.cz)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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package info.globalcode.sql.dk;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.io.PrintStream;
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import java.util.EnumSet;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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 * Displays info like help, version etc.
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 *
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 * @author Ing. František Kučera (frantovo.cz)
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 */
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public class InfoLister {
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	private static final Logger log = Logger.getLogger(InfoLister.class.getName());
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	private PrintStream out;
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	public InfoLister(PrintStream out) {
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		this.out = out;
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	}
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	public void showInfo(CLIOptions options) {
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		EnumSet<CLIOptions.INFO_TYPE> infoTypes = options.getShowInfo();
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		for (CLIOptions.INFO_TYPE infoType : infoTypes) {
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			switch (infoType) {
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				/**
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				 * TODO: implement show info
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				 */
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				case FORMATTERS:
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					println("TODO: list available formatters");
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					break;
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				case HELP:
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					println("TODO: show some help");
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					break;
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				case LICENSE:
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					printResource(Constants.LICENSE_FILE);
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					break;
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				case TYPES:
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					println("TODO: list supported types");
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					break;
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				case VERSION:
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					printResource(Constants.VERSION_FILE);
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					break;
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				case DATABASES:
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					println("TODO: list databases");
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					break;
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				case CONNECTION:
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					println("TODO: test database connection: " + options.getDatabaseNameToTest());
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					break;
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				default:
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					throw new IllegalArgumentException("Unsupported INFO_TYPE: " + infoType);
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			}
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		}
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	}
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	private void printResource(String fileName) {
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		try (BufferedReader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream(fileName)))) {
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			while (true) {
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				String line = reader.readLine();
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				if (line == null) {
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					break;
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				} else {
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					println(line);
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				}
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			}
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		} catch (Exception e) {
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			log.log(Level.SEVERE, "Unable to print this info. Please see our website for it: " + Constants.WEBSITE, e);
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		}
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	}
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	private void println(String line) {
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		out.println(line);
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	}
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}