#1037 Improve architecture of registration methods (#236)

* #1037 Improve architecture of registration methods
- Introduce parameters classes for each registration method
- RegistrationMethod has constants with the required parameters class -> no longer need to have a RegistrationExecutorProvider class that needs to be injected everywhere, let AsyncRegister be the only one to worry about which class will perform the registration
- Fix inheritance of password registration types - previously two-factor auth registration inherited from password registration directly

* Create matcher which checks for equality via reflections
- Allow to perform equality check on objects with default equals() method

src/main/java/fr/xephi/authme/command/executable/register/RegisterCommand.java

@@ -7,7 +7,10 @@ import fr.xephi.authme.message.MessageKey;
 import fr.xephi.authme.process.Management;
 import fr.xephi.authme.process.register.RegisterSecondaryArgument;
 import fr.xephi.authme.process.register.RegistrationType;
-import fr.xephi.authme.process.register.executors.RegistrationExecutorProvider;
+import fr.xephi.authme.process.register.executors.EmailRegisterParams;
+import fr.xephi.authme.process.register.executors.PasswordRegisterParams;
+import fr.xephi.authme.process.register.executors.RegistrationMethod;
+import fr.xephi.authme.process.register.executors.TwoFactorRegisterParams;
 import fr.xephi.authme.security.HashAlgorithm;
 import fr.xephi.authme.service.CommonService;
 import fr.xephi.authme.service.ValidationService;
@@ -42,15 +45,12 @@ public class RegisterCommand extends PlayerCommand {
     @Inject
     private ValidationService validationService;
 
-    @Inject
-    private RegistrationExecutorProvider registrationExecutorProvider;
-
     @Override
     public void runCommand(Player player, List<String> arguments) {
         if (commonService.getProperty(SecuritySettings.PASSWORD_HASH) == HashAlgorithm.TWO_FACTOR) {
             //for two factor auth we don't need to check the usage
-            management.performRegister(player,
-                registrationExecutorProvider.getTwoFactorRegisterExecutor(player));
+            management.performRegister(RegistrationMethod.TWO_FACTOR_REGISTRATION,
+                TwoFactorRegisterParams.of(player));
             return;
         } else if (arguments.size() < 1) {
             commonService.send(player, MessageKey.USAGE_REGISTER);
@@ -82,8 +82,8 @@ public class RegisterCommand extends PlayerCommand {
             final String password = arguments.get(0);
             final String email = getEmailIfAvailable(arguments);
 
-            management.performRegister(
-                player, registrationExecutorProvider.getPasswordRegisterExecutor(player, password, email));
+            management.performRegister(RegistrationMethod.PASSWORD_REGISTRATION,
+                PasswordRegisterParams.of(player, password, email));
         }
     }
 
@@ -138,7 +138,8 @@ public class RegisterCommand extends PlayerCommand {
         if (!validationService.validateEmail(email)) {
             commonService.send(player, MessageKey.INVALID_EMAIL);
         } else if (isSecondArgValidForEmailRegistration(player, arguments)) {
-            management.performRegister(player, registrationExecutorProvider.getEmailRegisterExecutor(player, email));
+            management.performRegister(RegistrationMethod.EMAIL_REGISTRATION,
+                EmailRegisterParams.of(player, email));
         }
     }