I have multiple calls to methods in a 3rd party library. These methods have a wide variety of different signatures / parameter combinations.
There are specific errors that the 3rd party library generates that I would like to catch and handle, and since the resolution is the same I would like it to take place in a single handler.
So I want to be able to have a method that essentially takes in as parameters a function (delegate) and its arguments, and invokes it inside some try/catch logic.
I don't know if its just not possible or I'm not getting the syntax right, but I can't figure out how to handle the fact that the signature for each method being passed in is different.
Any suggestions?
You could use Action
and Func<T>
to wrap the methods, and closures to pass arguments.
public TResult CallMethod<TResult>(Func<ThirdPartyClass, TResult> func)
{
try
{
return func(this.wrappedObject);
}
catch(ThirdPartyException e)
{
// Handle
}
}
public void CallMethod(Action<ThirdPartyClass> method)
{
this.CallMethod(() => { method(this.WrappedObject); return 0; });
}
You could then use this via:
var result = wrapper.CallMethod(thirdParty => thirdParty.Foo(bar, baz));
Edit: The above was assuming you were wrapping an instance of the third party library. Given (from your comments) that these are static methods, you can just use:
public static TResult CallMethod<TResult>(Func<TResult> func)
{
try
{
return func();
}
catch(ThirdPartyException e)
{
// Handle
}
}
public static void CallMethod(Action method)
{
CallMethod(() => { method(); return 0; });
}
And then call via:
var result = Wrapper.CallMethod(() => ThirdParty.Foo(bar, baz));
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