c# - Designing a WCF Service properly -

-

i need create wcf service @ work handle request different clients on same machine , optionally clients different machine on company's network (from programmer computer - debugging purposes). need suggestions on how create service because quite beginner when comes wcf.

the service requests clients perform different operations on h/w devices located on host machine. service need contain several modules support kinds of h/w devices. programmers writing client code use modules objects perform operations. each module needs support events towards clients , exception throwing.

i wanted know several things:

  1. is possible somehow export methods documentation clients? because best, when client code being written, programmer able see method does, exceptions being thrown , on. saw there way share api dll clients (keep in mind of clients run (and coded) on same machine using .net.
  2. is possible throw exceptions in service implementation methods? want use of .net abilities , exceptions 1 of them :)
  3. the service handle requests different threads in every client, possible use threads information (like thread id) or other way in order perform locking mechanism? example, if 2 threads of same client using same h/w device channel second 1 blocked until first 1 finished.
  4. finally, wanted know best endpoints , configuration service?

i know lot, read basics , can't quite decide proper way achieve these requirements.

thanks in advance.

1 - yes. said, can share api dll, plus can use mex endpoint provide documentation on service: https://social.msdn.microsoft.com/forums/vstudio/en-us/3def9d4f-ae3e-468b-90e6-3a069bac6376/when-to-use-wcf-mex-endpoint

2 - yes. wcf throws , sends faultexception client whenever goes bad , not caught inside own app.

3 - clients run in own threads or in thread pool (i don`t remember exactly, shouldn't matter anyway). can still use multi-threading features clients no problems. wcf thread-safe, client wise. abstracts in order make looks runs entire dedicated application each user.

4 - application going web or desktop? in case going web, recommend using nethttpbinding reliability. in case going desktop, have better performance results nettcpbinding.


Comments

Post a Comment

Popular posts from this blog

python - TypeError: start must be a integer -

-
i trying draw 5 turtles, getting typeerror on line 25. here code: import turtle wn = turtle.screen() redrose = turtle.turtle() color = input("what background color be?") fillcolor_f = input("what color of rose be?") redrose.hideturtle() redrose.speed(30) redrose.penup() redrose.left(180) redrose.forward(175) redrose.right(90) redrose.forward(30) redrose.right(90) redrose.pendown() def drawrose(red): redrose.color("pink") redrose.fillcolor(fillcolor_f) redrose.fill(true) in range(red): redrose.forward(i) redrose.right(49) in range(5): drawrose(redrose) redrose.penup() redrose.forward(350) redrose.right(144) redrose.pendown() redrose.fill(false) drawrose(50) wn.bgcolor(color) i trying draw 5 roses, produces errors. doing in interactivepython.org. you recursively calling drawrose wrong parameter. on line 23 ( for in range(red): ) expect red integer...
Read more

c# - DevExpress RepositoryItemComboBox BackColor property ignored -

-
i have following code almost works properly; private void cbstatus_drawitem(object sender, listboxdrawitemeventargs e) { string item = e.item string; if (item != null) { switch (item) { case "1": e.appearance.forecolor = color.green; e.appearance.backcolor = color.green; break; case "2": e.appearance.forecolor = color.orange; e.appearance.backcolor = color.orange; break; case "3": e.appearance.forecolor = color.red; e.appearance.backcolor = color.red; break; } } } when dropdown shown, items forecolor correct, backcolor remains whatever backcolor of theme is; i.e. if i've got set dark theme, backcolor dark, cells in gridview, rather being green/orange/red. i've tried setting e.appearance.options.usebackcolor trying set e....
Read more

django - Creating multiple model instances in DRF3 -

-
1) create multiple model instances 1 api call, asked here: how create multiple model instances django rest framework? tried solution named in link, no success. i trying upload multiple files in 1 api call. result: files uploaded (only once overwrote perform_create) 1 instance created (if send 2 files, latter created instance). my code: class fileuploadserializer(serializers.modelserializer): def __init__(self, *args, **kwargs): many = kwargs.pop('many', true) super(fileuploadserializer, self).__init__(many=many, *args, **kwargs) class meta: model = fileupload read_only_fields = ('created', 'datafile', 'owner') class fileuploadviewset(viewsets.modelviewset): queryset = fileupload.objects.all() serializer_class = fileuploadserializer parser_classes = (multipartparser, formparser, ) def perform_create(self, serializer): file_list = self.request.data.getlist('file') ...
Read more