Add tests from develop

Added tests from develop. The test results need to be modified for 2.0.

maxscale-system-test/maxscale/java/prep_stmt/CMakeLists.txt

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+add_java_test(java_prep_stmt PrepStmtTest.java maxscale.java.prep_stmt.PrepStmtTest java_prep_stmt)

maxscale-system-test/maxscale/java/prep_stmt/PrepStmtTest.java

@@ -0,0 +1,128 @@
+package maxscale.java.prep_stmt;
+
+import maxscale.java.MaxScaleConfiguration;
+import maxscale.java.MaxScaleConnection;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.ArrayList;
+
+public class PrepStmtTest {
+
+    public static final int RWSPLIT_PORT = 4006;
+    public static final String DATABASE_NAME = "test";
+    public static final String TABLE_NAME = "t1";
+
+    public static final int THREADS = 5;
+    public static final int ITERATIONS_NORMAL = 100;
+    public static final int ITERATIONS_SMOKE = 50;
+    public static int test_iter = ITERATIONS_NORMAL;
+
+    public static final String INSERT_SQL = "INSERT INTO " + DATABASE_NAME + "." + TABLE_NAME + " VALUES (NULL, ?)";
+    public static final String SELECT_SQL = "SELECT * FROM " + DATABASE_NAME + "." + TABLE_NAME + " WHERE  id = ?";
+
+    public static String conn_str = null;
+    public static String user = null;
+    public static String password = null;
+
+    public static void main(String[] args) {
+        boolean error = false;
+
+        try {
+            MaxScaleConfiguration config = new MaxScaleConfiguration("java_prep_stmt");
+            MaxScaleConnection maxscale = new MaxScaleConnection();
+
+            try {
+                test_iter = ITERATIONS_SMOKE;
+
+                // Prepare test database
+                System.out.println("Creating databases and tables..");
+                maxscale.query(maxscale.getConnMaster(), "DROP DATABASE IF EXISTS " + DATABASE_NAME);
+                maxscale.query(maxscale.getConnMaster(), "CREATE DATABASE " + DATABASE_NAME);
+                maxscale.query(maxscale.getConnMaster(), "CREATE TABLE " + DATABASE_NAME
+                               + "." + TABLE_NAME + "(id int primary key auto_increment, data varchar(128))");
+
+
+                conn_str = "jdbc:mariadb://" + maxscale.getIp() + ":" +
+                    MaxScaleConnection.READWRITESPLIT_PORT + "/test?";
+                user = maxscale.getUser();
+                password = maxscale.getPassword();
+
+                ArrayList<Thread> threads = new ArrayList<>();
+
+                for (int i = 0; i < THREADS; i++) {
+                    threads.add(new Thread(){
+                            public void run() {
+
+                                try  {
+                                    Connection conn = DriverManager.getConnection(conn_str, user, password);
+                                    conn.setAutoCommit(false);
+
+                                    for (int i = 0; i < test_iter; i++) {
+                                        conn.isValid(1);
+
+                                        PreparedStatement ps_insert = conn.prepareStatement(PrepStmtTest.INSERT_SQL);
+
+                                        ps_insert.setString(1, String.valueOf(i));
+                                        ps_insert.executeUpdate();
+                                        conn.commit();
+
+                                        conn.isValid(1);
+
+                                        PreparedStatement ps_select = conn.prepareStatement(PrepStmtTest.SELECT_SQL);
+                                        ps_select.setInt(1, i);
+                                        ResultSet rset = ps_select.executeQuery();
+
+                                        conn.isValid(1);
+
+                                        while (rset.next()) {
+                                            int r = rset.getInt(1);
+                                            String s = rset.getString(2);
+                                            if (i % 10 == 0) {
+                                                System.out.println("Result: " + String.valueOf(r) + " " + s);
+                                            }
+                                        }
+                                    }
+                                    conn.close();
+                                } catch (Exception ex) {
+                                    System.out.println("Error: " + ex.getMessage());
+                                    ex.printStackTrace();
+                                    System.exit(1);
+                                }
+                            }
+                        });
+                }
+
+                System.out.println("Starting " + String.valueOf(threads.size()) + " threads");
+
+                for (Thread a: threads) {
+                    a.start();
+                }
+
+                for (Thread a: threads) {
+                    a.join();
+                }
+
+            } catch (Exception ex) {
+                error = true;
+                System.out.println("Error: " + ex.getMessage());
+                ex.printStackTrace();
+            }
+
+            config.close();
+        }
+        catch (Exception ex) {
+            error = true;
+            System.out.println("Error: " + ex.getMessage());
+            ex.printStackTrace();
+        }
+
+        if (error) {
+            System.exit(1);
+        }
+    }
+}