1. import java.util.Arrays;
  2. import java.util.HashMap;
  3. import java.util.Map;
  5. public class CommandLineDeserializer {
  7. private Map<String, Object> options = new HashMap<>();
  9. public boolean parseOptions(String[] args) {
  10. if (args == null || args.length == 0) {
  11. return true; // No options, consider it successful
  12. }
  14. for (int i = 0; i < args.length; i++) {
  15. String arg = args[i];
  16. if (arg.startsWith("--")) {
  17. String optionName = arg.substring(2); // Remove "--"
  18. String optionValue = null;
  20. if (i + 1 < args.length) {
  21. optionValue = args[i + 1];
  22. i++; // Skip the value argument
  23. }
  25. if (optionValue != null) {
  26. try {
  27. // Attempt to parse the value based on common types
  28. if (optionValue.equalsIgnoreCase("true") || optionValue.equalsIgnoreCase("false")) {
  29. options.put(optionName, optionValue.equalsIgnoreCase("true")); // Boolean
  30. } else if (optionValue.matches("-?\\d+")) {
  31. options.put(optionName, Integer.parseInt(optionValue)); // Integer
  32. } else if (optionValue.matches("-?\\d+(\.\\d+)?")) {
  33. options.put(optionName, Double.parseDouble(optionValue)); // Double
  34. } else {
  35. options.put(optionName, optionValue); // String
  36. }
  37. } catch (NumberFormatException e) {
  38. System.err.println("Error parsing value for option '" + optionName + "': " + optionValue);
  39. return false; // Graceful failure
  40. }
  41. } else {
  42. options.put(optionName, null); // String option with no value
  43. }
  44. } else {
  45. System.err.println("Invalid option: " + arg);
  46. return false; // Graceful failure
  47. }
  48. }
  50. return true; // Parsing successful
  51. }
  53. public Map<String, Object> getOptions() {
  54. return options;
  55. }
  57. public static void main(String[] args) {
  58. CommandLineDeserializer deserializer = new CommandLineDeserializer();
  59. boolean success = deserializer.parseOptions(args);
  61. if (success) {
  62. Map<String, Object> parsedOptions = deserializer.getOptions();
  63. System.out.println("Parsed Options: " + parsedOptions);
  64. } else {
  65. System.err.println("Failed to parse command line options.");
  66. }
  67. }
  68. }

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