#region Apache License
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// The ASF licenses this file to you under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#endregion
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using System;
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using System.IO;
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using System.Text;
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using log4net.Util;
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using log4net.Core;
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namespace log4net.Layout
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{
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/// <summary>
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/// A very simple layout
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/// </summary>
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/// <remarks>
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/// <para>
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/// SimpleLayout consists of the level of the log statement,
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/// followed by " - " and then the log message itself. For example,
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/// <code>
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/// DEBUG - Hello world
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/// </code>
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/// </para>
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/// </remarks>
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/// <author>Nicko Cadell</author>
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/// <author>Gert Driesen</author>
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public class SimpleLayout : LayoutSkeleton
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{
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#region Constructors
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/// <summary>
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/// Constructs a SimpleLayout
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/// </summary>
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public SimpleLayout()
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{
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IgnoresException = true;
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}
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#endregion
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#region Implementation of IOptionHandler
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/// <summary>
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/// Initialize layout options
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/// </summary>
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/// <remarks>
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/// <para>
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/// This is part of the <see cref="IOptionHandler"/> delayed object
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/// activation scheme. The <see cref="ActivateOptions"/> method must
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/// be called on this object after the configuration properties have
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/// been set. Until <see cref="ActivateOptions"/> is called this
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/// object is in an undefined state and must not be used.
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/// </para>
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/// <para>
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/// If any of the configuration properties are modified then
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/// <see cref="ActivateOptions"/> must be called again.
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/// </para>
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/// </remarks>
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override public void ActivateOptions()
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{
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// nothing to do.
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}
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#endregion
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#region Override implementation of LayoutSkeleton
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/// <summary>
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/// Produces a simple formatted output.
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/// </summary>
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/// <param name="loggingEvent">the event being logged</param>
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/// <param name="writer">The TextWriter to write the formatted event to</param>
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/// <remarks>
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/// <para>
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/// Formats the event as the level of the even,
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/// followed by " - " and then the log message itself. The
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/// output is terminated by a newline.
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/// </para>
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/// </remarks>
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override public void Format(TextWriter writer, LoggingEvent loggingEvent)
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{
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if (loggingEvent == null)
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{
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throw new ArgumentNullException("loggingEvent");
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}
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writer.Write(loggingEvent.Level.DisplayName);
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writer.Write(" - ");
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loggingEvent.WriteRenderedMessage(writer);
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writer.WriteLine();
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}
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#endregion
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}
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}
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