source

Source for my MapleSolaxiaV2 (v83 MapleStory).

src/tools/DatabaseConnection.java

@@ -0,0 +1,50 @@
+package tools;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+import constants.ServerConstants;
+
+/**
+ * @author Frz (Big Daddy)
+ * @author The Real Spookster (some modifications to this beautiful code)
+ */
+public class DatabaseConnection {
+        
+    public static final int RETURN_GENERATED_KEYS = 1;
+
+    private static ThreadLocal<Connection> con = new ThreadLocalConnection();
+
+    public static Connection getConnection() {
+        Connection c = con.get();
+        try {
+            c.getMetaData();
+        } catch (SQLException e) { // connection is dead, therefore discard old object 5ever
+            con.remove();
+            c = con.get();
+        }
+        return c;
+    }
+
+    private static class ThreadLocalConnection extends ThreadLocal<Connection> {
+
+        @Override
+        protected Connection initialValue() {
+            try {
+                Class.forName("com.mysql.jdbc.Driver"); // touch the mysql driver
+            } catch (ClassNotFoundException e) {
+                System.out.println("[SEVERE] SQL Driver Not Found. Consider death by clams.");
+                e.printStackTrace();
+                return null;
+            }
+            try {
+                return DriverManager.getConnection(ServerConstants.DB_URL, ServerConstants.DB_USER, ServerConstants.DB_PASS);
+            } catch (SQLException e) {
+                System.out.println("[SEVERE] Unable to make database connection.");
+                e.printStackTrace();
+                return null;
+            }
+        }
+    }
+}