Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Management / BufferedWebEventProvider.cs / 1 / BufferedWebEventProvider.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Management { using System; using System.Web; using System.Diagnostics; using System.Web.Util; using System.Web.Configuration; using System.Configuration.Provider; using System.Collections; using System.Collections.Specialized; using System.Configuration; using System.Security; using Debug=System.Web.Util.Debug; using System.Security.Permissions; // Interface for buffered event provider [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public abstract class BufferedWebEventProvider : WebEventProvider { bool _buffer = true; string _bufferMode; WebEventBuffer _webEventBuffer; public override void Initialize(string name, NameValueCollection config) { // create buffer according to the buffer mode settings specified, like we do in sql/mail providers // wire up the delegate to the ProcessEventFlush method Debug.Trace("BufferedWebEventProvider", "Initializing: name=" + name); ProviderUtil.GetAndRemoveBooleanAttribute(config, "buffer", name, ref _buffer); if (_buffer) { ProviderUtil.GetAndRemoveRequiredNonEmptyStringAttribute(config, "bufferMode", name, ref _bufferMode); _webEventBuffer = new WebEventBuffer(this, _bufferMode, new WebEventBufferFlushCallback(this.ProcessEventFlush)); } else { ProviderUtil.GetAndRemoveStringAttribute(config, "bufferMode", name, ref _bufferMode); } base.Initialize(name, config); ProviderUtil.CheckUnrecognizedAttributes(config, name); } public bool UseBuffering { get { return _buffer; } } public string BufferMode { get { return _bufferMode; } } public override void ProcessEvent(WebBaseEvent eventRaised) { if (_buffer) { // register the event with the buffer instead of writing it out Debug.Trace("BufferedWebEventProvider", "Saving event to buffer: event=" + eventRaised.GetType().Name); _webEventBuffer.AddEvent(eventRaised); } else { WebEventBufferFlushInfo flushInfo = new WebEventBufferFlushInfo( new WebBaseEventCollection(eventRaised), EventNotificationType.Unbuffered, 0, DateTime.MinValue, 0, 0); ProcessEventFlush(flushInfo); } } public abstract void ProcessEventFlush(WebEventBufferFlushInfo flushInfo); public override void Flush() { if (_buffer) { _webEventBuffer.Flush(Int32.MaxValue, FlushCallReason.StaticFlush); } } public override void Shutdown() { if (_webEventBuffer != null) { _webEventBuffer.Shutdown(); } } } }
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