XmlConfiguratorAttribute not working with this.Log and log4net? - log4net

I'm using this.Log and am trying to get the application to start using the following attribute:
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "Log4Net.config", Watch = true)]
This doesn't seem to work though and when I turn on log4net debugging I can't seem to find out why. I looked at the this.Log code though and found the following line in the Log4NetLog.cs file:
[assembly: XmlConfigurator(Watch = true)]
Could this be overriding my own assembly settings? Is there a way to get this working?

Since you have the source you could remove the line and recompile.
Alternatively, you can override the settings at runtime, eg add the line (either to the start of your program or in a static constructor)
log4net.Config.XmlConfigurator.ConfigureAndWatch(new System.IO.FileInfo("Log4net.config"));

Related

Resharper run configurations

I'm trying to make a reshaprer plugin to add one (or more) configurations, besides executable, static method, project, at resharper's build/run window.
Any guidelines where to start? Or how to access build's context and configure?
Currently examining the JetBrains.IDE.RunConfig, SolutionBuilders etc but one help would be appreciated.
Should this plugin be a SolutionComponent or a SolutionInstanceComponent?
Resharper's sdk help lucks documentation on build/run component.
Thank in advance!
You can extend the available run configuration types by implementing IRunConfig and IRunConfigProvider.
The IRunConfigProvider class needs to be marked as [ShellComponent], and can derive from the RunConfigProviderBase abstract base class. You get to specify a name, e.g. "Executable", a type identifier, e.g. "exe" and an icon ID. There's also the CreateNew method, which will create a new instance of your IRunConfig class, which will be mostly unconfigured, at this point.
The IRunConfig interface doesn't need to marked as a component, and should also derive from RunConfigBase - take a look at RunConfigExe in dotPeek to see an example of how to implement. You should override Execute in order to actually run whatever it is you need to run. You can use the RunConfigContext class passed in to actually execute a process from a ProcessStartInfo, or an IProject - this will execute it either by running the process, debugging it, or something else, such as code coverage or profiling.
For an .exe, this is as simple as:
public override void Execute(RunConfigContext context)
{
context.ExecutionProvider.Execute(GetStartInfo(context), context, this);
}
But for a more complicated example, look at RunConfigMethod.Execute, which uses its own standalone launcher executable, and passes in command line parameters to load the correct assembly and execute the given static method.
Settings are implemented with ReadSpecific/SaveSpecific, and you can provide an editor view model with CreateEditor. You'll need a settings class, something like:
[SettingsKey(typeof (ConfigSettings), ".exe config")]
public class ExeSettings
{
[SettingsEntry(null, "Path to .exe")] public string Executable;
[SettingsEntry(null, "Working directory")] public string WorkingDirectory;
[SettingsEntry(null, "Command line arguments")] public string Arguments;
}
The view for the editor is provided by a WPF control that is displayed in a dialog that ReSharper controls. The view needs to be decorated with the [View] attribute and must implement IView<T> where T is the concrete class returned from CreateEditor. This is how ReSharper will locate the view for the view model returned by CreateEditor. Again, take a look at RunConfigMethodView in dotPeek for some more idea of what's going on (and if you look in the resources, you'll be able to see the XAML itself).

How to use ExtendedLog4netLogger.cs to set logfile path for appender at runtime?

I am trying to figure out how to use the ExtendedLog4NetLogger.cs
to change the log file path dynamically at runtime or using the LoggingFacility?
This should be something similar to using log4net directly like this:
log4net.GlobalContext.Properties["LogName"] = logName;
How would I access the ExtendedLogger if I register log4net integration like this:
container.AddFacility<LoggingFacility>(f => f.UseLog4Net());
Update: I use the following code to register the Extended Logger
container.AddFacility<LoggingFacility>(LoggerImplementation.ExtendedLog4net).WithConfig(configFile).ToLog(Lo‌gger));
I get no runtime exceptions and the logger is not a null instance but I don't see the log file created at all using the global properties, I also set the config value to this for the appender: <file type="log4net.Util.PatternString" value="%property{LogName}" />
If I just set the file property in the config file to full path it does work. I am wondering if it is not working because configuration is done before setting the global variable.
extendedlogger.GlobalProperties["logName"] = logName;
To enable extended logger you need to do:
container.AddFacility<LoggingFacility>(f => f.LogUsing(LoggerImplementation.ExtendedLog4net));
1. How would I access the ExtendedLogger if I register log4net integration like this:
Using the dependency injection you can expect IExtendedLogger object in the place where you need it.
2. I am wondering if it is not working because configuration is done before setting the global variable.
That's right. You need to reconfigure log4net after setting a property.
Here is an example:
using Castle.Core.Logging;
using log4net.Config;
class MyClass {
private readonly IExtendedLogger _extendedLogger;
public MyClass(IExtendedLogger extendedLogger) {
_extendedLogger = extendedLogger;
}
public void MyFunction() {
_extendedlogger.GlobalProperties["logName"] = logName;
XmlConfigurator.Configure();
_extendedlogger.Error("my error message");
}
}

cannot find how 'F1' key works in application

My application is built in MFC.After the application executes I need to open the help file provided with exe.
But as I press F1 application gives an error message saying the file cannot be found. This happens because no such file of that name exist.
One would think how about changing the name of help file itself? well that cannot be done I have to change the path as well.
I need to know how does the function of F1 button work and where can I find the same?
I am using VC++ 6.0 (I know its very old, but I am stuck with it).
Thank you.
To show your specific help file, you have to overwrite CWinApp::OnHelp. The path to the standard help file is stored in CWinApp::m_pszHelpFilePath. In this example, I use my own m_path variable.
void CMyApp::OnHelp()
{
::HtmlHelp(((CMainFrame*)AfxGetMainWnd())->m_hWnd,m_path,HH_DISPLAY_TOPIC,NULL);
}
If I remember correctly, by default it's handled by CWinApp::OnHelp() so take a look at your override of the application class first, you may find the ON_COMMAND handler there.
I had an class that extends CWinApp, so overwriting the OnHelp function worked this way:
In the header:
class MyApp : public CWinApp
{
public:
afx_msg void OnHelp();
}
In the cpp file:
BEGIN_MESSAGE_MAP(MyApp, CWinApp)
ON_COMMAND(ID_HELP, MyApp::OnHelp)
END_MESSAGE_MAP()
void MyApp::OnHelp()
{
// your own help function
}

TypeForwardedTo refuses to work for System.Windows.Input.ICommand in MonoTouch / VSMonoTouch

I've implemented quite a few TypeForwardedTo routes using the suggestion in the accepted answer from Is it possible to use a Portable Class Library that references System.Net in MonoDroid?
However, I'm now trying to add TypeForwardTo(System.Windows.Input.ICommand) to the list, and for some reason this type refuses to work.
Basically the error message I get is:
Error 5 The type or namespace name 'Windows' does not exist in the namespace 'System' (are you missing an assembly reference?) C:\Projects\Misc\MVVMCROSS\Cirrious\System.Windows.Touch\Forwarding.cs 9 42 System.Windows.Touch
I don't understand why this is as when I look at the VSMonoTouch copy of System.dll in Reflector then I can clearly see the ICommand type:
.namespace System.Windows.Input
{
.class public interface abstract auto ansi ICommand
{
.event [mscorlib]System.EventHandler CanExecuteChanged
{
.addon instance void System.Windows.Input.ICommand::add_CanExecuteChanged(class [mscorlib]System.EventHandler)
.removeon instance void System.Windows.Input.ICommand::remove_CanExecuteChanged(class [mscorlib]System.EventHandler)
}
.method public hidebysig newslot abstract virtual instance bool CanExecute(object parameter) cil managed
{
}
.method public hidebysig newslot abstract virtual instance void Execute(object parameter) cil managed
{
}
}
}
Other types in System.dll are forwarding fine - i.e. only the last line is failing in:
[assembly: TypeForwardedTo(typeof(System.Collections.ObjectModel.ObservableCollection<>))]
[assembly: TypeForwardedTo(typeof(System.Collections.ObjectModel.ReadOnlyObservableCollection<>))]
[assembly: TypeForwardedTo(typeof(System.Collections.Specialized.INotifyCollectionChanged))]
[assembly: TypeForwardedTo(typeof(System.Collections.Specialized.NotifyCollectionChangedAction))]
[assembly: TypeForwardedTo(typeof(System.Collections.Specialized.NotifyCollectionChangedEventArgs))]
[assembly: TypeForwardedTo(typeof(System.Collections.Specialized.NotifyCollectionChangedEventHandler))]
[assembly: TypeForwardedTo(typeof(System.Windows.Input.ICommand))]
Also:
- I know that the MonoDroid redirect of this is working fine....
- I know that System.Windows.Input.ICommand was added comparatively recently to MonoTouch
- I have a suspicion that the fact that VSMonoTouch uses a .Net Framework Version of 1.0 might also be causing some issues (but I'm not sure I fully understand this).
Can anyone suggest what might be the cause of this? And what might be a cure?

Possible C# 4.0 compiler error, can others verify?

Since I don't know exactly what part of it alone that triggers the error, I'm not entirely sure how to better label it.
This question is a by-product of the SO question c# code seems to get optimized in an invalid way such that an object value becomes null, which I attempted to help Gary with yesterday evening. He was the one that found out that there was a problem, I've just reduced the problem to a simpler project, and want verification before I go further with it, hence this question here.
I'll post a note on Microsoft Connect if others can verify that they too get this problem, and of course I hope that either Jon, Mads or Eric will take a look at it as well :)
It involves:
3 projects, 2 of which are class libraries, one of which is a console program (this last one isn't needed to reproduce the problem, but just executing this shows the problem, whereas you need to use reflector and look at the compiled code if you don't add it)
Incomplete references and type inference
Generics
The code is available here: code repository.
I'll post a description below of how to make the projects if you rather want to get your hands dirty.
The problem exhibits itself by producing an invalid cast in a method call, before returning a simple generic list, casting it to something strange before returning it. The original code ended up with a cast to a boolean, yes, a boolean. The compiler added a cast from a List<SomeEntityObject> to a boolean, before returning the result, and the method signature said that it would return a List<SomeEntityObject>. This in turn leads to odd problems at runtime, everything from the result of the method call being considered "optimized away" (the original question), or a crash with either BadImageFormatException or InvalidProgramException or one of the similar exceptions.
During my work to reproduce this, I've seen a cast to void[], and the current version of my code now casts to a TypedReference. In one case, Reflector crashes so most likely the code was beyond hope in that case. Your mileage might vary.
Here's what to do to reproduce it:
Note: There is likely that there are more minimal forms that will reproduce the problem, but moving all the code to just one project made it go away. Removing the generics from the classes also makes the problem go away. The code below reproduces the problem each time for me, so I'm leaving it as is.
I apologize for the escaped html characters in the code below, this is Markdown playing a trick on me, if anyone knows how I can rectify it, please let me know, or just edit the question
Create a new Visual Studio 2010 solution containing a console application, for .NET 4.0
Add two new projects, both class libraries, also .NET 4.0 (I'm going to assume they're named ClassLibrary1 and ClassLibrary2)
Adjust all the projects to use the full .NET 4.0 runtime, not just the client profile
Add a reference in the console project to ClassLibrary2
Add a reference in ClassLibrary2 to ClassLibrary 1
Remove the two Class1.cs files that was added by default to the class libraries
In ClassLibrary1, add a reference to System.Runtime.Caching
Add a new file to ClassLibrary1, call it DummyCache.cs, and paste in the following code:
using System;
using System.Collections.Generic;
using System.Runtime.Caching;
namespace ClassLibrary1
{
public class DummyCache<TModel> where TModel : new()
{
public void TriggerMethod<T>()
{
}
// Try commenting this out, note that it is never called!
public void TriggerMethod<T>(T value, CacheItemPolicy policy)
{
}
public CacheItemPolicy GetDefaultCacheItemPolicy()
{
return null;
}
public CacheItemPolicy GetDefaultCacheItemPolicy(IEnumerable<string> dependentKeys, bool createInsertDependency = false)
{
return null;
}
}
}
Add a new file to ClassLibrary2, call it Dummy.cs and paste in the following code:
using System;
using System.Collections.Generic;
using ClassLibrary1;
namespace ClassLibrary2
{
public class Dummy
{
private DummyCache<Dummy> Cache { get; set; }
public void TryCommentingMeOut()
{
Cache.TriggerMethod<Dummy>();
}
public List<Dummy> GetDummies()
{
var policy = Cache.GetDefaultCacheItemPolicy();
return new List<Dummy>();
}
}
}
Paste in the following code in Program.cs in the console project:
using System;
using System.Collections.Generic;
using ClassLibrary2;
namespace ConsoleApplication23
{
class Program
{
static void Main(string[] args)
{
Dummy dummy = new Dummy();
// This will crash with InvalidProgramException
// or BadImageFormatException, or a similar exception
List<Dummy> dummies = dummy.GetDummies();
}
}
}
Build, and ensure there are no compiler errors
Now try running the program. This should crash with one of the more horrible exceptions. I've seen both InvalidProgramException and BadImageFormatException, depending on what the cast ended up as
Look at the generated code of Dummy.GetDummies in Reflector. The source code looks like this:
public List<Dummy> GetDummies()
{
var policy = Cache.GetDefaultCacheItemPolicy();
return new List<Dummy>();
}
however reflector says (for me, it might differ in which cast it chose for you, and in one case Reflector even crashed):
public List<Dummy> GetDummies()
{
List<Dummy> policy = (List<Dummy>)this.Cache.GetDefaultCacheItemPolicy();
TypedReference CS$1$0000 = (TypedReference) new List<Dummy>();
return (List<Dummy>) CS$1$0000;
}
Now, here's a couple of odd things, the above crash/invalid code aside:
Library2, which has Dummy.GetDummies, performs a call to get the default cache policy on the class from Library1. It uses type inference var policy = ..., and the result is an CacheItemPolicy object (null in the code, but type is important).
However, ClassLibrary2 does not have a reference to System.Runtime.Caching, so it should not compile.
And indeed, if you comment out the method in Dummy that is named TryCommentingMeOut, you get:
The type 'System.Runtime.Caching.CacheItemPolicy' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime.Caching, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Why having this method present makes the compiler happy I don't know, and I don't even know if this is linked to the current problem or not. Perhaps it is a second bug.
There is a similar method in DummyCache, if you restore the method in Dummy, so that the code again compiles, and then comment out the method in DummyCache that has the "Try commenting this out" comment above it, you get the same compiler error
OK, I downloaded your code and can confirm the problem as described.
I have not done any extensive tinkering with this, but when I run & reflector a Release build all seems OK (= null ref exception and clean disassembly).
Reflector (6.10.11) crashed on the Debug builds.
One more experiment: I wondered about the use of CacheItemPolicies so I replaced it with my own MyCacheItemPolicy (in a 3rd classlib) and the same BadImageFormat exception pops up.
The exception mentions : {"Bad binary signature. (Exception from HRESULT: 0x80131192)"}

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