| #region Apache License |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to you under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| #endregion |
| |
| using System; |
| #if NETCF |
| using System.Collections; |
| #endif |
| |
| namespace log4net.Util |
| { |
| /// <summary> |
| /// Implementation of Properties collection for the <see cref="log4net.ThreadContext"/> |
| /// </summary> |
| /// <remarks> |
| /// <para> |
| /// Class implements a collection of properties that is specific to each thread. |
| /// The class is not synchronized as each thread has its own <see cref="PropertiesDictionary"/>. |
| /// </para> |
| /// </remarks> |
| /// <author>Nicko Cadell</author> |
| public sealed class ThreadContextProperties : ContextPropertiesBase |
| { |
| #region Private Instance Fields |
| |
| #if NETCF |
| /// <summary> |
| /// The thread local data slot to use to store a PropertiesDictionary. |
| /// </summary> |
| private readonly static LocalDataStoreSlot s_threadLocalSlot = System.Threading.Thread.AllocateDataSlot(); |
| #else |
| /// <summary> |
| /// Each thread will automatically have its instance. |
| /// </summary> |
| [ThreadStatic] |
| private static PropertiesDictionary _dictionary; |
| #endif |
| |
| #endregion Private Instance Fields |
| |
| #region Public Instance Constructors |
| |
| /// <summary> |
| /// Internal constructor |
| /// </summary> |
| /// <remarks> |
| /// <para> |
| /// Initializes a new instance of the <see cref="ThreadContextProperties" /> class. |
| /// </para> |
| /// </remarks> |
| internal ThreadContextProperties() |
| { |
| } |
| |
| #endregion Public Instance Constructors |
| |
| #region Public Instance Properties |
| |
| /// <summary> |
| /// Gets or sets the value of a property |
| /// </summary> |
| /// <value> |
| /// The value for the property with the specified key |
| /// </value> |
| /// <remarks> |
| /// <para> |
| /// Gets or sets the value of a property |
| /// </para> |
| /// </remarks> |
| public override object this[string key] |
| { |
| get |
| { |
| #if NETCF |
| PropertiesDictionary _dictionary = GetProperties(false); |
| #endif |
| if (_dictionary != null) |
| { |
| return _dictionary[key]; |
| } |
| return null; |
| } |
| set |
| { |
| GetProperties(true)[key] = value; |
| } |
| } |
| |
| #endregion Public Instance Properties |
| |
| #region Public Instance Methods |
| |
| /// <summary> |
| /// Remove a property |
| /// </summary> |
| /// <param name="key">the key for the entry to remove</param> |
| /// <remarks> |
| /// <para> |
| /// Remove a property |
| /// </para> |
| /// </remarks> |
| public void Remove(string key) |
| { |
| #if NETCF |
| PropertiesDictionary _dictionary = GetProperties(false); |
| #endif |
| if (_dictionary != null) |
| { |
| _dictionary.Remove(key); |
| } |
| } |
| |
| /// <summary> |
| /// Get the keys stored in the properties. |
| /// </summary> |
| /// <para> |
| /// Gets the keys stored in the properties. |
| /// </para> |
| /// <returns>a set of the defined keys</returns> |
| public string[] GetKeys() |
| { |
| #if NETCF |
| PropertiesDictionary _dictionary = GetProperties(false); |
| #endif |
| if (_dictionary != null) |
| { |
| return _dictionary.GetKeys(); |
| } |
| return null; |
| } |
| |
| /// <summary> |
| /// Clear all properties |
| /// </summary> |
| /// <remarks> |
| /// <para> |
| /// Clear all properties |
| /// </para> |
| /// </remarks> |
| public void Clear() |
| { |
| #if NETCF |
| PropertiesDictionary _dictionary = GetProperties(false); |
| #endif |
| if (_dictionary != null) |
| { |
| _dictionary.Clear(); |
| } |
| } |
| |
| #endregion Public Instance Methods |
| |
| #region Internal Instance Methods |
| |
| /// <summary> |
| /// Get the <c>PropertiesDictionary</c> for this thread. |
| /// </summary> |
| /// <param name="create">create the dictionary if it does not exist, otherwise return null if does not exist</param> |
| /// <returns>the properties for this thread</returns> |
| /// <remarks> |
| /// <para> |
| /// The collection returned is only to be used on the calling thread. If the |
| /// caller needs to share the collection between different threads then the |
| /// caller must clone the collection before doing so. |
| /// </para> |
| /// </remarks> |
| internal PropertiesDictionary GetProperties(bool create) |
| { |
| #if NETCF |
| PropertiesDictionary _dictionary = (PropertiesDictionary)System.Threading.Thread.GetData(s_threadLocalSlot); |
| #endif |
| if (_dictionary == null && create) |
| { |
| _dictionary = new PropertiesDictionary(); |
| #if NETCF |
| System.Threading.Thread.SetData(s_threadLocalSlot, _dictionary); |
| #endif |
| } |
| return _dictionary; |
| } |
| |
| #endregion Internal Instance Methods |
| } |
| } |
| |