App Services Modelling Tidy Up

Making event objects immutable. Making Libhb constructs internal to the
library. We should expose this with a managed api if we need it outside
the library. (Part 1)

1 files changed, 39 insertions, 0 deletions

diff --git a/win/CS/HandBrakeWPF/Helpers/Validate.cs b/win/CS/HandBrakeWPF/Helpers/Validate.cs
new file mode 100644
index 000000000..7d307dfbc
--- /dev/null
+++ b/win/CS/HandBrakeWPF/Helpers/Validate.cs
@@ -0,0 +1,39 @@
+// --------------------------------------------------------------------------------------------------------------------
+// <copyright file="Validate.cs" company="HandBrake Project (http://handbrake.fr)">
+//   This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
+// </copyright>
+// <summary>
+//   The validate.
+// </summary>
+// --------------------------------------------------------------------------------------------------------------------
+
+namespace HandBrakeWPF.Helpers
+{
+    using System;
+
+    /// <summary>
+    /// The validate.
+    /// </summary>
+    public class Validate
+    {
+        /// <summary>
+        /// The not null.
+        /// </summary>
+        /// <param name="item">
+        /// The item.
+        /// </param>
+        /// <param name="message">
+        /// The message.
+        /// </param>
+        /// <exception cref="ArgumentException">
+        /// Thrown when the input object is null
+        /// </exception>
+        public static void NotNull(object item, string message)
+        {
+            if (item == null)
+            {
+                throw new ArgumentException(message);
+            }
+        }
+    }
+}