1 files changed, 103 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Core/Logging/ConsoleLogger.cs b/src/csharp/Grpc.Core/Logging/ConsoleLogger.cs
new file mode 100644
index 0000000000..c67765c78d
--- /dev/null
+++ b/src/csharp/Grpc.Core/Logging/ConsoleLogger.cs
@@ -0,0 +1,103 @@
+#region Copyright notice and license
+
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Collections.Generic;
+
+namespace Grpc.Core.Logging
+{
+    /// <summary>Logger that logs to System.Console.</summary>
+    public class ConsoleLogger : ILogger
+    {
+        readonly Type forType;
+        readonly string forTypeString;
+
+        public ConsoleLogger() : this(null)
+        {
+        }
+
+        private ConsoleLogger(Type forType)
+        {
+            this.forType = forType;
+            this.forTypeString = forType != null ? forType.FullName + " " : "";
+        }
+
+        public ILogger ForType<T>()
+        {
+            if (typeof(T) == forType)
+            {
+                return this;
+            }
+            return new ConsoleLogger(typeof(T));
+        }
+
+        public void Debug(string message, params object[] formatArgs)
+        {
+            Log("D", message, formatArgs);
+        }
+
+        public void Info(string message, params object[] formatArgs)
+        {
+            Log("I", message, formatArgs);
+        }
+
+        public void Warning(string message, params object[] formatArgs)
+        {
+            Log("W", message, formatArgs);
+        }
+
+        public void Warning(Exception exception, string message, params object[] formatArgs)
+        {
+            Log("W", message + " " + exception, formatArgs);
+        }
+
+        public void Error(string message, params object[] formatArgs)
+        {
+            Log("E", message, formatArgs);
+        }
+
+        public void Error(Exception exception, string message, params object[] formatArgs)
+        {
+            Log("E", message + " " + exception, formatArgs);
+        }
+
+        private void Log(string severityString, string message, object[] formatArgs)
+        {
+            Console.Error.WriteLine("{0}{1} {2}{3}",
+                severityString,
+                DateTime.Now,
+                forTypeString,
+                string.Format(message, formatArgs));
+        }
+    }
+}