initial commit

2019-02-21 14:57:47 +01:00
parent 5d488ec56f
commit 6b4c3dbc5d
7 changed files with 933 additions and 0 deletions
--- a/src/DBController.java
+++ b/src/DBController.java
@ -0,0 +1,201 @@
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+class DBController
+{
+
+	private Connection connection;
+
+	private String DB_PATH_Linux;
+
+	public String dbname = "tlcIndex";
+
+	public void main()
+	{
+		try {
+			connection = DriverManager
+					.getConnection("jdbc:sqlite:" + DB_PATH_Linux + dbname + ".db");
+		} catch (SQLException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	public DBController(String projectPath)
+	{
+		this.DB_PATH_Linux = projectPath;
+	}
+
+	public void connectDatabase()
+	{ // connect to database
+		System.out.println("Verbinde ... DB name: " + dbname);
+		try {
+			if (connection != null)
+				return;
+			connection = DriverManager
+					.getConnection("jdbc:sqlite:" + DB_PATH_Linux + dbname + ".db");
+			if (!connection.isClosed())
+				System.out.println("DB Datei-Verbindung erstellt");
+		} catch (SQLException e) {
+			throw new RuntimeException(e);
+		}
+		Runtime.getRuntime().addShutdownHook(new Thread() {
+			public void run()
+			{
+				try {
+					if (!connection.isClosed() && connection != null) {
+						connection.close();
+						if (connection.isClosed())
+							System.out.println();
+					}
+				} catch (SQLException e) {
+					e.printStackTrace();
+				}
+			}
+		});
+	}
+
+	public void createTableImages()
+	{ // create table position
+		System.out.println("Erstelle Tabelle images");
+		try {
+			Statement stmt = connection.createStatement();
+			stmt.executeUpdate("DROP TABLE IF EXISTS images;");
+			stmt.executeUpdate(
+					"CREATE TABLE images (imageCounter, path, day, month, year, hour, minute, size, brightness);");
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+		}
+	}
+
+	public void fillImages(int imageCounter, String path, int day, int month,
+			int year, int hour, int minute, int size, int brightness)
+	{ // create new data in table
+		// System.out.println("Erstelle neuen images eintrag");
+		try {
+			PreparedStatement ps = connection.prepareStatement(
+					"INSERT INTO images VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?);");
+			ps.setInt(1, imageCounter); // primary
+			ps.setString(2, path);
+			ps.setInt(3, day);
+			ps.setInt(4, month);
+			ps.setInt(5, year);
+			ps.setInt(6, hour);
+			ps.setInt(7, minute);
+			ps.setInt(8, size);
+			ps.setInt(9, brightness);
+			ps.addBatch();
+			connection.setAutoCommit(false);
+			ps.executeBatch(); // SQL execution
+			connection.setAutoCommit(true);
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+		}
+	}
+
+	public List<Image> query(String pQuery)
+	{
+		List<Image> list = new ArrayList<Image>();
+
+		try {
+			Statement stmt = connection.createStatement();
+			ResultSet rs = stmt.executeQuery(pQuery);
+			while (rs.next()) {
+				list.add(new Image(rs.getInt("imageCounter"), rs.getString("path"),
+						rs.getInt("day"), rs.getInt("month"), rs.getInt("year"),
+						rs.getInt("hour"), rs.getInt("minute"), rs.getInt("size"),
+						rs.getInt("brightness")));
+			} // end while
+				return list;
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+			return null;
+		}
+	}
+
+	public String getPathFromIndex(int pCounter)
+	{
+		try {
+			Statement stmt = connection.createStatement();
+			ResultSet rs = stmt
+					.executeQuery("SELECT path FROM images WHERE imageCounter = "
+							+ pCounter + " ;");
+			return rs.getString("path");
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+			return "Error 404";
+		}
+	}
+
+	public int getHourFromIndex(int pCounter)
+	{
+		try {
+			Statement stmt = connection.createStatement();
+			ResultSet rs = stmt
+					.executeQuery("SELECT hour FROM images WHERE imageCounter = "
+							+ pCounter + " ;");
+			return rs.getInt("hour");
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+			return 404;
+		}
+	}
+
+	public int getMinuteFromIndex(int pCounter)
+	{
+		try {
+			Statement stmt = connection.createStatement();
+			ResultSet rs = stmt
+					.executeQuery("SELECT minute FROM images WHERE imageCounter = "
+							+ pCounter + " ;");
+			return rs.getInt("minute");
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+			return 404;
+		}
+	}
+
+	public int getDayFromIndex(int pCounter)
+	{
+		try {
+			Statement stmt = connection.createStatement();
+			ResultSet rs = stmt
+					.executeQuery("SELECT day FROM images WHERE imageCounter = "
+							+ pCounter + " ;");
+			return rs.getInt("day");
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+			return 404;
+		}
+	}
+
+	public int getSizeFromIndex(int pCounter)
+	{
+		try {
+			Statement stmt = connection.createStatement();
+			ResultSet rs = stmt
+					.executeQuery("SELECT size FROM images WHERE imageCounter = "
+							+ pCounter + " ;");
+			return rs.getInt("size");
+		} catch (SQLException e) {
+			System.err.println("Couldn't handle DB-Query");
+			e.printStackTrace();
+			return 404;
+		}
+	}
+
+}