package org.cacert.gigi.database;
+import java.io.IOException;
+import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.util.HashMap;
import java.util.Properties;
+import org.cacert.gigi.database.SQLFileManager.ImportType;
+
public class DatabaseConnection {
+ public static final int CURRENT_SCHEMA_VERSION = 4;
+
public static final int CONNECTION_TIMEOUT = 24 * 60 * 60;
private Connection c;
- private HashMap<String, PreparedStatement> statements = new HashMap<String, PreparedStatement>();
+ private HashMap<String, GigiPreparedStatement> statements = new HashMap<String, GigiPreparedStatement>();
private static Properties credentials;
private void tryConnect() {
try {
c = DriverManager.getConnection(credentials.getProperty("sql.url") + "?zeroDateTimeBehavior=convertToNull", credentials.getProperty("sql.user"), credentials.getProperty("sql.password"));
- PreparedStatement ps = c.prepareStatement("SET SESSION wait_timeout=?;");
- ps.setInt(1, CONNECTION_TIMEOUT);
- ps.execute();
- ps.close();
- adHoc = c.createStatement();
+ PreparedStatement ps = c.prepareStatement("SET SESSION wait_timeout=?, time_zone='+0:00';");
+ try {
+ ps.setInt(1, CONNECTION_TIMEOUT);
+ ps.execute();
+ adHoc = c.createStatement();
+ } finally {
+ ps.close();
+ }
} catch (SQLException e) {
e.printStackTrace();
}
}
- public PreparedStatement prepare(String query) throws SQLException {
+ public GigiPreparedStatement prepare(String query) {
ensureOpen();
- PreparedStatement statement = statements.get(query);
+ GigiPreparedStatement statement = statements.get(query);
if (statement == null) {
- statement = c.prepareStatement(query, Statement.RETURN_GENERATED_KEYS);
+ try {
+ statement = new GigiPreparedStatement(c.prepareStatement(query, Statement.RETURN_GENERATED_KEYS));
+ } catch (SQLException e) {
+ throw new Error(e);
+ }
statements.put(query, statement);
}
return statement;
lastAction = System.currentTimeMillis();
}
- public static int lastInsertId(PreparedStatement query) throws SQLException {
- ResultSet rs = query.getGeneratedKeys();
- rs.next();
- int id = rs.getInt(1);
- rs.close();
- return id;
- }
-
private static ThreadLocal<DatabaseConnection> instances = new ThreadLocal<DatabaseConnection>() {
@Override
throw new Error("Re-initiaizing is forbidden.");
}
credentials = conf;
+ GigiResultSet rs = getInstance().prepare("SELECT version FROM schemeVersion ORDER BY version DESC LIMIT 1").executeQuery();
+ int version = 0;
+ if (rs.next()) {
+ version = rs.getInt(1);
+ }
+ if (version == CURRENT_SCHEMA_VERSION) {
+ return; // Good to go
+ }
+ if (version > CURRENT_SCHEMA_VERSION) {
+ throw new Error("Invalid database version. Please fix this.");
+ }
+ upgrade(version);
+ }
+
+ private static void upgrade(int version) {
+ try {
+ Statement s = getInstance().c.createStatement();
+ try {
+ while (version < CURRENT_SCHEMA_VERSION) {
+ try (InputStream resourceAsStream = DatabaseConnection.class.getResourceAsStream("upgrade/from_" + version + ".sql")) {
+ if (resourceAsStream == null) {
+ throw new Error("Upgrade script from version " + version + " was not found.");
+ }
+ SQLFileManager.addFile(s, resourceAsStream, ImportType.PRODUCTION);
+ }
+ version++;
+ }
+ s.addBatch("UPDATE schemeVersion SET version='" + version + "'");
+ System.out.println("UPGRADING Database to version " + version);
+ s.executeBatch();
+ System.out.println("done.");
+ } finally {
+ s.close();
+ }
+ } catch (SQLException e) {
+ e.printStackTrace();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
}
public void beginTransaction() throws SQLException {