public void testWriteDB() throws SQLException {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception ex) {
System.err.println("Could not initiate JDBC driver.");
ex.printStackTrace();
}
try {
Connection conn =
DriverManager.getConnection(
"jdbc:mysql://localhost:3306/wittcarl_recurrence_plot_clustering?user=root&password=mysql");
TimeSeriesGenerator tsg = new TimeSeriesGenerator(1, 1000, "lorenz");
double[][] trajectory = tsg.lorenz_standard[0];
DRQA drqa = new DRQA(trajectory, trajectory, 0.05);
drqa.computeRQA(2, 2, 2);
drqa.writeResultDB(
"IN_MEMORY",
"lorenz",
DRQA.EmbeddingMethod.ORIGINAL_TRAJECTORY.ordinal(),
3,
-1,
trajectory[0].length,
DRQA.LMinMethod.L_MIN_FIX.ordinal(),
2,
0,
conn);
} catch (SQLException ex) {
System.out.println("SQLException: " + ex.getMessage());
System.out.println("SQLState: " + ex.getSQLState());
System.out.println("VendorError: " + ex.getErrorCode());
}
}
public void testSerialize() throws IOException, ClassNotFoundException {
SparseDoubleMatrix2D matrix2D =
new SparseDoubleMatrix2D(
new double[][] {
new double[] {1, 2, 3}, new double[] {4, 5, 6}, new double[] {7, 8, 9}
});
System.out.println(String.format("matrix2D: %s", matrix2D));
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception ex) {
System.err.println("Could not initiate JDBC driver.");
ex.printStackTrace();
}
try {
Connection conn =
DriverManager.getConnection(
"jdbc:mysql://localhost:3306/wittcarl_recurrence_plot_clustering?user=root&password=mysql");
PreparedStatement preps =
conn.prepareStatement(
"INSERT INTO `wittcarl_recurrence_plot_clustering`.`blob` (`id`, `signature`) VALUES (null, ?);");
preps.setObject(1, matrix2D);
preps.execute();
PreparedStatement get = conn.prepareStatement("SELECT id, signature FROM `blob` WHERE id=3");
ResultSet resultSet = get.executeQuery();
resultSet.next();
int id = resultSet.getInt(1);
InputStream is = resultSet.getBlob(2).getBinaryStream();
ObjectInputStream oip = new ObjectInputStream(is);
Object object = oip.readObject();
String className = object.getClass().getName();
oip.close();
is.close();
resultSet.close();
// de-serialize list a java object from a given objectID
SparseDoubleMatrix2D restored = (SparseDoubleMatrix2D) object;
System.out.println(String.format("id: %s", id));
System.out.println(String.format("restored: %s", restored));
conn.close();
} catch (SQLException ex) {
// handle any errors
System.out.println("SQLException: " + ex.getMessage());
System.out.println("SQLState: " + ex.getSQLState());
System.out.println("VendorError: " + ex.getErrorCode());
}
}