src/org/sonews/util/DatabaseSetup.java
author cli
Sun, 29 Aug 2010 17:28:58 +0200
changeset 35 ed84c8bdd87b
parent 3 org/sonews/util/DatabaseSetup.java@2fdc9cc89502
child 37 74139325d305
permissions -rw-r--r--
Moving source files into src/-subdir.
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/*
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 *   SONEWS News Server
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 *   see AUTHORS for the list of contributors
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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 org.sonews.util;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.Statement;
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import java.util.HashMap;
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import java.util.Map;
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import org.sonews.config.Config;
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import org.sonews.util.io.Resource;
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/**
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 * Database setup utility class.
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 * @author Christian Lins
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 * @since sonews/0.5.0
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 */
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public final class DatabaseSetup 
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{
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  private static final Map<String, String> templateMap 
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    = new HashMap<String, String>();
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  private static final Map<String, StringTemplate> urlMap
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    = new HashMap<String, StringTemplate>();
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  private static final Map<String, String> driverMap
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    = new HashMap<String, String>();
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  static
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  {
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    templateMap.put("1", "helpers/database_mysql5_tmpl.sql");
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    templateMap.put("2", "helpers/database_postgresql8_tmpl.sql");
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    urlMap.put("1", new StringTemplate("jdbc:mysql://%HOSTNAME/%DB"));
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    urlMap.put("2", new StringTemplate("jdbc:postgresql://%HOSTNAME/%DB"));
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    driverMap.put("1", "com.mysql.jdbc.Driver");
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    driverMap.put("2", "org.postgresql.Driver");
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  }
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  public static void main(String[] args)
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    throws Exception
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  {
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    System.out.println("sonews Database setup helper");
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    System.out.println("This program will create a initial database table structure");
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    System.out.println("for the sonews Newsserver.");
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    System.out.println("You need to create a database and a db user manually before!");
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    System.out.println("Select DBMS type:");
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    System.out.println("[1] MySQL 5.x or higher");
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    System.out.println("[2] PostgreSQL 8.x or higher");
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    System.out.print("Your choice: ");
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    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
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    String dbmsType = in.readLine();
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    String tmplName = templateMap.get(dbmsType);
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    if(tmplName == null)
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    {
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      System.err.println("Invalid choice. Try again you fool!");
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      main(args);
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      return;
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    }
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    // Load JDBC Driver class
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    Class.forName(driverMap.get(dbmsType));
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    String tmpl = Resource.getAsString(tmplName, true);
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    System.out.print("Database server hostname (e.g. localhost): ");
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    String dbHostname = in.readLine();
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    System.out.print("Database name: ");
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    String dbName = in.readLine();
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    System.out.print("Give name of DB user that can create tables: ");
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    String dbUser = in.readLine();
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    System.out.print("Password: ");
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    String dbPassword = in.readLine();
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    String url = urlMap.get(dbmsType)
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      .set("HOSTNAME", dbHostname)
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      .set("DB", dbName).toString();
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    Connection conn = 
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      DriverManager.getConnection(url, dbUser, dbPassword);
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    conn.setAutoCommit(false);
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    String[] tmplChunks = tmpl.split(";");
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    for(String chunk : tmplChunks)
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    {
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      if(chunk.trim().equals(""))
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      {
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        continue;
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      }
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      Statement stmt = conn.createStatement();
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      stmt.execute(chunk);
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    }
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    conn.commit();
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    conn.setAutoCommit(true);
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    // Create config file
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    System.out.println("Ok");
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  }
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}