001/*
002 * PlotSquared, a land and world management plugin for Minecraft.
003 * Copyright (C) IntellectualSites <https://intellectualsites.com>
004 * Copyright (C) IntellectualSites team and contributors
005 *
006 * This program is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * This program is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
018 */
019package com.plotsquared.core.database;
020
021import com.plotsquared.core.PlotSquared;
022import org.apache.logging.log4j.LogManager;
023import org.apache.logging.log4j.Logger;
024
025import java.io.File;
026import java.io.IOException;
027import java.sql.Connection;
028import java.sql.DriverManager;
029import java.sql.ResultSet;
030import java.sql.SQLException;
031import java.sql.Statement;
032
033/**
034 * Connects to and uses a SQLite database.
035 */
036public class SQLite extends Database {
037
038    private static final Logger LOGGER = LogManager.getLogger("PlotSquared/" + SQLite.class.getSimpleName());
039
040    private final String dbLocation;
041    private Connection connection;
042
043    /**
044     * Creates a new SQLite instance
045     *
046     * @param dbLocation Location of the Database (Must end in .db)
047     */
048    public SQLite(File dbLocation) {
049        this.dbLocation = dbLocation.getAbsolutePath();
050    }
051
052    @Override
053    public Connection openConnection() throws SQLException, ClassNotFoundException {
054        if (checkConnection()) {
055            return this.connection;
056        }
057        if (!PlotSquared.platform().getDirectory().exists()) {
058            PlotSquared.platform().getDirectory().mkdirs();
059        }
060        File file = new File(this.dbLocation);
061        if (!file.exists()) {
062            try {
063                file.createNewFile();
064            } catch (IOException ignored) {
065                LOGGER.error("Unable to create database");
066            }
067        }
068        Class.forName("org.sqlite.JDBC");
069        this.connection = DriverManager.getConnection("jdbc:sqlite:" + this.dbLocation);
070        return this.connection;
071    }
072
073    @Override
074    public boolean checkConnection() throws SQLException {
075        return (this.connection != null) && !this.connection.isClosed();
076    }
077
078    @Override
079    public Connection getConnection() {
080        return this.connection;
081    }
082
083    @Override
084    public boolean closeConnection() throws SQLException {
085        if (this.connection == null) {
086            return false;
087        }
088        this.connection.close();
089        this.connection = null;
090        return true;
091    }
092
093    @Override
094    public ResultSet querySQL(String query) throws SQLException, ClassNotFoundException {
095        if (checkConnection()) {
096            openConnection();
097        }
098        try (Statement statement = this.connection.createStatement()) {
099            return statement.executeQuery(query);
100        }
101    }
102
103    @Override
104    public int updateSQL(String query) throws SQLException, ClassNotFoundException {
105        if (checkConnection()) {
106            openConnection();
107        }
108        try (Statement statement = this.connection.createStatement()) {
109            return statement.executeUpdate(query);
110        }
111    }
112
113    @Override
114    public Connection forceConnection() throws SQLException, ClassNotFoundException {
115        Class.forName("org.sqlite.JDBC");
116        this.connection = DriverManager.getConnection("jdbc:sqlite:" + this.dbLocation);
117        return this.connection;
118    }
119
120}