major classes refactoring

src/main/java/com/commafeed/backend/services/UserService.java

@@ -0,0 +1,58 @@
+package com.commafeed.backend.services;
+
+import java.util.Collection;
+
+import javax.ejb.Stateless;
+import javax.inject.Inject;
+
+import com.commafeed.backend.dao.UserDAO;
+import com.commafeed.backend.model.User;
+import com.commafeed.backend.model.UserRole;
+import com.commafeed.backend.model.UserRole.Role;
+
+@Stateless
+public class UserService {
+
+	@Inject
+	UserDAO userDAO;
+
+	@Inject
+	PasswordEncryptionService encryptionService;
+
+	public User login(String name, String password) {
+		User user = userDAO.findByName(name);
+		if (user != null && !user.isDisabled()) {
+			boolean authenticated = encryptionService.authenticate(password,
+					user.getPassword(), user.getSalt());
+			if (authenticated) {
+				return user;
+			}
+		}
+
+		return null;
+	}
+
+	public User register(String name, String password, Collection<Role> roles) {
+		return register(name, password, null, roles);
+	}
+
+	public User register(String name, String password, String email,
+			Collection<Role> roles) {
+		if (userDAO.findByName(name) != null) {
+			return null;
+		}
+		User user = new User();
+		byte[] salt = encryptionService.generateSalt();
+		user.setName(name);
+		user.setEmail(email);
+		user.setSalt(salt);
+		user.setPassword(encryptionService.getEncryptedPassword(password, salt));
+		user.getRoles().add(new UserRole(user, Role.USER));
+		for (Role role : roles) {
+			user.getRoles().add(new UserRole(user, role));
+			user.getRoles().add(new UserRole(user, role));
+		}
+		userDAO.save(user);
+		return user;
+	}
+}