EVE Technology Lab

I'll have a look tonight



The RequestHandler has a threadpool of 20 threads for public and 10 for authenticated crest, and that is the only limit the library imposes. From what I can remember that amounts to roughly 50 requests per second. The size is configurable through the RequestHandler object on your EveCrest object. I might implement more sophisticated control some time, eg. bursts, but that's far down the road.

Thank you for that information. I had discovered the Load function but LoadAsync is better. I tried to put the Async functions in but with the await keyword, it wants the calls in a seperate async function, which I have not wrapped my head around yet. I removed the await keywords and it works, but the icon task never completes. I know the href is working, I can copy it from a watch window into a browser and get the image.

Here is my function...

        
MarketTypeInformation GetMarketTypeInformation(MarketTypeCollection.Item marketType)
        {
            MarketTypeInformation info = new MarketTypeInformation();

            var itemType = eveCrest.LoadAsync(marketType.Type);
            var marketGroup = eveCrest.LoadAsync(marketType.MarketGroup);
            var itemIcon = eveCrest.LoadImageAsync(marketType.Type.Icon);

            while (itemType.IsCompleted == false || marketGroup.IsCompleted == false || itemIcon.IsCompleted == false) ;

            info.itemType = itemType.Result;
            info.marketGroup = marketGroup.Result;

            using (var ms = new MemoryStream(itemIcon.Result))
            {
                info.icon = Image.FromStream(ms);
            }            

            return (info);
        }

Those are not supposed to be null. I'll have a look tomorrow. I'll look at the icon too. If you want to use async, it should use async/await all the way up to your top level event handler or whatever is the topmost caller of your code. You might want to read up on async/await for that :)

edit: Nevermind what I said about async, you can use it like you have, but you should understand what's going on :) There are many benefits of using the full await/async API tho, especially if you are using it with a GUI.

Edit2: The IsCompleted check isn't necessary, because .Result forces synchronization internally, basically waiting for IsCompleted.

No, then you would use the await keyword, or Task.AwaitAll().

I've fixed bugs with the DogmaAttribute and DogmaEffect on ItemTypes, and they are now parsed correctly, I'll update EveCrest shortly.

I tested LoadImage and it's working fine, tested using the following code:

public async Task GetIcon() {
            var item = (await crest.GetRoot().QueryAsync(r => r.MarketTypes)).Items.First();
            var icon = await crest.LoadImageAsync(item.Type.Icon);
}

And I also did the same using the synchronous methods, both load the image data correctly.

The latest build of Crest v3.2.2 has caused previously compiling code to error.

I have been trying to post some details, but no matter what I do it thinks I am posting html.

Basically, I created a list of MarketGroup by Querying the root which returns a MarketGroupCollection and converting to a List with ToList() function, but it now says that it can't convert from MarketGroupCollection.MarketGroupItem to MarketGroup. If I change my list to a MarketGroupCollection.MarketGroupItem I can get that code to compile but later on when I am building the Market Group TreeView (basically a clone of the Eve Market Window) the ParentGroup field is not available in the MarketGroupCollection.MarketGroupItem. I use the ParentGroup field to build the tree from the out of order list of MarketGroup items. This probably a misunderstanding of what classes I should be using to do this, but it did previously work with Crest 3.2.1.

Thank you

No problem, your code has saved me hours of programming. I have worked on a library for months with barely a fraction of the functionality that you provide in this library. I appreciate your work and your timely addressing of issues. I know of professional companies that take longer to address issues.

I wish my skills were a little better because I might be able to help with the debugging of the library, but alas I am just a hacker and not the type everyone thinks are cool.

Do you have any idea why I have issues posting source code? I can get some stuff to go through and see it in the preview then all of a sudden it says it cannot contain html and erases everything I have tried to enter. I copied the code I posted from the other day and it went in with no problems. It would be so much easier to post source code examples.

By the way, I am also trying to do the same thing with Regions and run into a similar issue, but I will wait until I have the MarketGroups working again and see if I can figure it out on my own before I spring that on you.

I think some of my problem is visualizing the difference between the objects with Crest endpoints and the actual resource objects.

Don't think me a pain, but just tried Crest v3.2.3 and the initial call to create an EveCrest object causes an exception.

eveCrest = new EveCrest();

From my log text...

Creating EveCrest object.
Exception: System.MissingMethodException: Method not found: 'System.String eZet.EveLib.Core.Config.get_AppData()'.
   at eZet.EveLib.EveCrestModule.RequestHandlers.CachedCrestRequestHandler..ctor(ISerializer serializer)
   at eZet.EveLib.EveCrestModule.EveCrest..ctor()
   at EveCrestContest.frmMarketItems.frmMarketItems_Shown(Object sender, EventArgs e) in C:\EveCrestContest v1.0.0.4\EveCrestContest\frmMarketItems.cs:line 49

Now the exception is

Creating EveCrest object.
Exception: System.MissingFieldException: Field not found: 'eZet.EveLib.Core.Config.Separator'.
   at eZet.EveLib.EveCrestModule.RequestHandlers.CachedCrestRequestHandler..ctor(ISerializer serializer)
   at eZet.EveLib.EveCrestModule.EveCrest..ctor()
   at EveCrestContest.frmMarketItems.frmMarketItems_Shown(Object sender, EventArgs e) in D:\EveCrestContest v1.0.0.4\EveCrestContest\frmMarketItems.cs:line 49