Added BufferingExceptionlessAppender

Source/Platforms/Log4net/BufferingExceptionlessAppender.cs

@@ -0,0 +1,39 @@
+using System;
+using log4net.Appender;
+using log4net.Core;
+
+namespace Exceptionless.Log4net {
+    public class BufferingExceptionlessAppender : BufferingAppenderSkeleton {
+        private ExceptionlessClient _client = ExceptionlessClient.Default;
+
+        public string ApiKey { get; set; }
+        public string ServerUrl { get; set; }
+
+        protected override void SendBuffer(LoggingEvent[] events) {
+            foreach (var e in events) {
+                _client.SubmitFromLogEvent(e);
+            }
+        }
+
+        public override void ActivateOptions() {
+            base.ActivateOptions();
+            if (!String.IsNullOrEmpty(ApiKey) || !String.IsNullOrEmpty(ServerUrl))
+                _client = new ExceptionlessClient(config =>
+                {
+                    if (!String.IsNullOrEmpty(ApiKey))
+                        config.ApiKey = ApiKey;
+                    if (!String.IsNullOrEmpty(ServerUrl))
+                        config.ServerUrl = ServerUrl;
+                    config.UseInMemoryStorage();
+                });
+        }
+
+        protected override void Append(LoggingEvent loggingEvent)
+        {
+            if (!_client.Configuration.IsValid)
+                return;
+
+            base.Append(loggingEvent);
+        }
+    }
+}

Source/Platforms/Log4net/Exceptionless.Log4net.csproj

@@ -47,6 +47,7 @@
     <Compile Include="..\..\GlobalAssemblyInfo.cs">
       <Link>Properties\GlobalAssemblyInfo.cs</Link>
     </Compile>
+    <Compile Include="BufferingExceptionlessAppender.cs" />
     <Compile Include="ExceptionlessAppender.cs" />
     <Compile Include="ExceptionlessClientExtensions.cs" />
     <Compile Include="Log4netExceptionlessLog.cs" />