//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//------------------------------------------------------------------------------
/*
*/
namespace System.Diagnostics {
using System;
using System.ComponentModel;
using System.Security;
using System.Security.Permissions;
///
/// Provides a multi-level switch to enable or disable tracing
/// and debug output for a compiled application or framework.
///
[SwitchLevel(typeof(TraceLevel))]
public class TraceSwitch : Switch {
///
/// Initializes a new instance of the class.
///
public TraceSwitch(string displayName, string description)
: base(displayName, description) {
}
public TraceSwitch(string displayName, string description, string defaultSwitchValue)
: base(displayName, description, defaultSwitchValue) { }
///
/// Gets or sets the trace
/// level that specifies what messages to output for tracing and debugging.
///
public TraceLevel Level {
get {
return (TraceLevel)SwitchSetting;
}
[SecurityPermission(SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)]
set {
if (value < TraceLevel.Off || value > TraceLevel.Verbose)
throw new ArgumentException(SR.GetString(SR.TraceSwitchInvalidLevel));
SwitchSetting = (int)value;
}
}
///
/// Gets a value
/// indicating whether the is set to
/// , , , or
/// .
///
public bool TraceError {
get {
return (Level >= TraceLevel.Error);
}
}
///
/// Gets a value
/// indicating whether the is set to
/// , , or .
///
public bool TraceWarning {
get {
return (Level >= TraceLevel.Warning);
}
}
///
/// Gets a value
/// indicating whether the is set to
/// or .
///
public bool TraceInfo {
get {
return (Level >= TraceLevel.Info);
}
}
///
/// Gets a value
/// indicating whether the is set to
/// .
///
public bool TraceVerbose {
get {
return (Level == TraceLevel.Verbose);
}
}
///
///
/// Update the level for this switch.
///
///
protected override void OnSwitchSettingChanged() {
int level = SwitchSetting;
if (level < (int)TraceLevel.Off) {
Trace.WriteLine(SR.GetString(SR.TraceSwitchLevelTooLow, DisplayName));
SwitchSetting = (int)TraceLevel.Off;
}
else if (level > (int)TraceLevel.Verbose) {
Trace.WriteLine(SR.GetString(SR.TraceSwitchLevelTooHigh, DisplayName));
SwitchSetting = (int)TraceLevel.Verbose;
}
}
protected override void OnValueChanged() {
SwitchSetting = (int) Enum.Parse(typeof(TraceLevel), Value, true);
}
}
}