#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.Collections;
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namespace log4net.Util
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{
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/// <summary>
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/// Implementation of Stacks collection for the <see cref="log4net.ThreadContext"/>
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/// </summary>
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/// <remarks>
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/// <para>
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/// Implementation of Stacks collection for the <see cref="log4net.ThreadContext"/>
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/// </para>
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/// </remarks>
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/// <author>Nicko Cadell</author>
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public sealed class ThreadContextStacks
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{
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private readonly ContextPropertiesBase m_properties;
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#region Public Instance Constructors
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/// <summary>
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/// Internal constructor
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/// </summary>
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/// <remarks>
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/// <para>
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/// Initializes a new instance of the <see cref="ThreadContextStacks" /> class.
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/// </para>
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/// </remarks>
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internal ThreadContextStacks(ContextPropertiesBase properties)
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{
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m_properties = properties;
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}
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#endregion Public Instance Constructors
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#region Public Instance Properties
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/// <summary>
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/// Gets the named thread context stack
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/// </summary>
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/// <value>
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/// The named stack
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/// </value>
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/// <remarks>
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/// <para>
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/// Gets the named thread context stack
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/// </para>
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/// </remarks>
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public ThreadContextStack this[string key]
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{
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get
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{
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ThreadContextStack stack = null;
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object propertyValue = m_properties[key];
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if (propertyValue == null)
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{
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// Stack does not exist, create
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stack = new ThreadContextStack();
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m_properties[key] = stack;
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}
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else
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{
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// Look for existing stack
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stack = propertyValue as ThreadContextStack;
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if (stack == null)
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{
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// Property is not set to a stack!
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string propertyValueString = SystemInfo.NullText;
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try
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{
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propertyValueString = propertyValue.ToString();
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}
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catch
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{
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}
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LogLog.Error(declaringType, "ThreadContextStacks: Request for stack named ["+key+"] failed because a property with the same name exists which is a ["+propertyValue.GetType().Name+"] with value ["+propertyValueString+"]");
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stack = new ThreadContextStack();
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}
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}
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return stack;
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}
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}
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#endregion Public Instance Properties
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#region Private Static Fields
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/// <summary>
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/// The fully qualified type of the ThreadContextStacks class.
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/// </summary>
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/// <remarks>
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/// Used by the internal logger to record the Type of the
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/// log message.
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/// </remarks>
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private readonly static Type declaringType = typeof(ThreadContextStacks);
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#endregion Private Static Fields
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}
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}
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