Added new StringBuilderLog for capturing logs in a shared StringBuilder

mythz · mythz · commit fccd5115dd66 · 2013-06-07T20:31:56.000-04:00
diff --git a/src/ServiceStack.Interfaces/Logging/Support/Logging/StringBuilderLog.cs b/src/ServiceStack.Interfaces/Logging/Support/Logging/StringBuilderLog.cs
@@ -0,0 +1,184 @@
+#if !NETFX_CORE
+using System;
+using System.Text;
+
+namespace ServiceStack.Logging.Support.Logging
+{
+    /// <summary>
+    /// StringBuilderLog writes to shared StringBuffer.
+    /// Made public so its testable
+    /// </summary>
+    public class StringBuilderLogFactory : ILogFactory
+    {
+        private StringBuilder sb;
+
+        public StringBuilderLogFactory()
+        {
+            sb = new StringBuilder();
+        }
+
+        public ILog GetLogger(Type type)
+        {
+            return new StringBuilderLog(type, sb);
+        }
+
+        public ILog GetLogger(string typeName)
+        {
+            return new StringBuilderLog(typeName, sb);
+        }
+
+        public string GetLogs()
+        {
+            lock (sb)
+                return sb.ToString();
+        }
+
+        public void ClearLogs()
+        {
+            lock (sb)
+                sb.Remove(0, sb.Length - 1);
+        }
+    }
+
+    public class StringBuilderLog : ILog
+    {
+        const string DEBUG = "DEBUG: ";
+        const string ERROR = "ERROR: ";
+        const string FATAL = "FATAL: ";
+        const string INFO = "INFO: ";
+        const string WARN = "WARN: ";
+        private readonly StringBuilder logs;
+
+        public StringBuilderLog(string type, StringBuilder logs)
+        {
+            this.logs = logs;
+        }
+
+        public StringBuilderLog(Type type, StringBuilder logs)
+        {
+            this.logs = logs;
+        }
+
+        public bool IsDebugEnabled { get { return true; } }
+
+        /// <summary>
+        /// Logs the specified message.
+        /// </summary>
+        /// <param name="message">The message.</param>
+        /// <param name="exception">The exception.</param>
+        private void Log(object message, Exception exception)
+        {
+            string msg = message == null ? string.Empty : message.ToString();
+            if (exception != null)
+            {
+                msg += ", Exception: " + exception.Message;
+            }
+            lock (logs)
+                logs.AppendLine(msg);
+        }
+
+        /// <summary>
+        /// Logs the format.
+        /// </summary>
+        /// <param name="message">The message.</param>
+        /// <param name="args">The args.</param>
+        private void LogFormat(object message, params object[] args)
+        {
+            string msg = message == null ? string.Empty : message.ToString();
+            lock (logs)
+            {
+                logs.AppendFormat(msg, args);
+                logs.AppendLine();
+            }
+        }
+
+        /// <summary>
+        /// Logs the specified message.
+        /// </summary>
+        /// <param name="message">The message.</param>
+        private void Log(object message)
+        {
+            string msg = message == null ? string.Empty : message.ToString();
+            lock (logs)
+            {
+                logs.AppendLine(msg);
+            }
+        }
+
+        public void Debug(object message, Exception exception)
+        {
+            Log(DEBUG + message, exception);
+        }
+
+        public void Debug(object message)
+        {
+            Log(DEBUG + message);
+        }
+
+        public void DebugFormat(string format, params object[] args)
+        {
+            LogFormat(DEBUG + format, args);
+        }
+
+        public void Error(object message, Exception exception)
+        {
+            Log(ERROR + message, exception);
+        }
+
+        public void Error(object message)
+        {
+            Log(ERROR + message);
+        }
+
+        public void ErrorFormat(string format, params object[] args)
+        {
+            LogFormat(ERROR + format, args);
+        }
+
+        public void Fatal(object message, Exception exception)
+        {
+            Log(FATAL + message, exception);
+        }
+
+        public void Fatal(object message)
+        {
+            Log(FATAL + message);
+        }
+
+        public void FatalFormat(string format, params object[] args)
+        {
+            LogFormat(FATAL + format, args);
+        }
+
+        public void Info(object message, Exception exception)
+        {
+            Log(INFO + message, exception);
+        }
+
+        public void Info(object message)
+        {
+            Log(INFO + message);
+        }
+
+        public void InfoFormat(string format, params object[] args)
+        {
+            LogFormat(INFO + format, args);
+        }
+
+        public void Warn(object message, Exception exception)
+        {
+            Log(WARN + message, exception);
+        }
+
+        public void Warn(object message)
+        {
+            Log(WARN + message);
+        }
+
+        public void WarnFormat(string format, params object[] args)
+        {
+            LogFormat(WARN + format, args);
+        }
+    }
+}
+#endif
diff --git a/src/ServiceStack.Interfaces/ServiceStack.Interfaces.csproj b/src/ServiceStack.Interfaces/ServiceStack.Interfaces.csproj
@@ -309,6 +309,7 @@
     <Compile Include="Logging\Support\Logging\ConsoleLogger.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="Logging\Support\Logging\StringBuilderLog.cs" />
     <Compile Include="Logging\Support\Logging\DebugLogFactory.cs">
       <SubType>Code</SubType>
     </Compile>
