added exception

Signed-off-by:Roland Häder <roland@mxchange.org>

diff --git a/src/org/mxchange/jusercore/exceptions/UserAlreadyRegisteredException.java b/src/org/mxchange/jusercore/exceptions/UserAlreadyRegisteredException.java
new file mode 100644 (file)
index 0000000..453fd69
--- /dev/null
+++ b/src/org/mxchange/jusercore/exceptions/UserAlreadyRegisteredException.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 Roland Haeder
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.mxchange.jusercore.exceptions;
+
+import java.text.MessageFormat;
+import org.mxchange.jusercore.model.user.User;
+
+/**
+ * An exception thrown when the customer is already registered
+ * <p>
+ * @author Roland Haeder
+ */
+public class UserAlreadyRegisteredException extends Exception {
+
+       /**
+        * Serial number
+        */
+       private static final long serialVersionUID = 16_435_892_878_271L;
+
+       /**
+        * Constructor with already registered user instance
+        * <p>
+        * @param user User instance
+        */
+       public UserAlreadyRegisteredException (final User user) {
+               // Call super contructor
+               super(MessageFormat.format("User {0} already registered with number {1} at record id {2}. Maybe forgot to call isRegistered(user) ?", user, user.getUserName(), user.getUserId()));
+       }
+}