1. import java.sql.*;
  2. import java.util.ArrayList;
  3. import java.util.List;
  5. public class DataRestorer {
  7. /**
  8. * Restores data from a backup to a staging environment.
  9. *
  10. * @param backupFilePath The path to the backup file (e.g., CSV, SQL dump).
  11. * @param stagingDBUrl The JDBC URL for the staging database.
  12. * @param stagingUsername The username for the staging database.
  13. * @param stagingPassword The password for the staging database.
  14. * @param tableSchema The schema of the table to restore to.
  15. */
  16. public static void restoreData(String backupFilePath, String stagingDBUrl, String stagingUsername, String stagingPassword, String tableSchema) {
  18. try (Connection stagingConnection = DriverManager.getConnection(stagingDBUrl, stagingUsername, stagingPassword)) {
  20. // Read data from the backup file
  21. List<String[]> data = readDataFromBackup(backupFilePath);
  23. // Prepare SQL statement for inserting data
  24. String insertStatement = "INSERT INTO " + tableSchema + " (column1, column2, column3) VALUES (?, ?, ?)"; // Adjust columns as needed
  26. try (PreparedStatement preparedStatement = stagingConnection.prepareStatement(insertStatement)) {
  28. // Insert data into the staging table
  29. for (String[] row : data) {
  30. preparedStatement.setString(1, row[0]); // Adjust column indexes
  31. preparedStatement.setString(2, row[1]);
  32. preparedStatement.setString(3, row[2]);
  33. preparedStatement.executeUpdate();
  34. }
  35. }
  37. } catch (SQLException e) {
  38. System.err.println("Error restoring data: " + e.getMessage());
  39. e.printStackTrace(); // Print the stack trace for debugging
  40. }
  41. }
  43. /**
  44. * Reads data from a CSV backup file.
  45. *
  46. * @param filePath The path to the CSV file.
  47. * @return A list of string arrays, where each array represents a row.
  48. */
  49. private static List<String[]> readDataFromBackup(String filePath) {
  50. List<String[]> data = new ArrayList<>();
  51. try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
  52. String line;
  53. while ((line = reader.readLine()) != null) {
  54. String[] values = line.split(","); // Adjust delimiter as needed
  55. data.add(values);
  56. }
  57. } catch (IOException e) {
  58. System.err.println("Error reading backup file: " + e.getMessage());
  59. e.printStackTrace();
  60. }
  61. return data;
  62. }
  67. public static void main(String[] args) {
  68. //Example usage
  69. String backupFile = "data.csv"; // Replace with your backup file path
  70. String dbUrl = "jdbc:mysql://localhost:3306/stagingdb"; // Replace with your staging DB URL
  71. String dbUser = "staginguser"; // Replace with your staging DB user
  72. String dbPass = "stagingpassword"; // Replace with your staging DB password
  73. String tableName = "myTable"; // Replace with your table name
  75. restoreData(backupFile, dbUrl, dbUser, dbPass, tableName);
  76. }
  77. }

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