There are a lot of articles about using .exchange() and most of them recommend to close connection using
bodyToMono*, toEntity*, or just ClientResponse.close() or sometimes ClientResponse.dispose()
I am a little bit confused because ClientReponse interface in my project (spring-webflux:5.1.9.Release) doesn't have a method close();.
I need to check httpStatus (that's the only reason why I am using .exchange() but not .retrieve()), there is also some logic with "bad" httpStatus (I am throwing custom error and then process it in .onErrorResume() block)
So what is the best practise to work with clientResponse()?
If the only problem is that the App doesn't know when it should close the connection, will .exchange().block() automatically close the connection ?
If I should use .close() - how should I get this method ? Maybe I should use another version of spring-webflux ?
Or maybe there is another best way to retrieve response body and status in spring-webflux?
I dont think there is anything as "best practice" in this scenario . It totally depends on your requirements. Like you are throwing custom error on 4xx status, that's why you are using exchange.
Regarding ClientResponse.dispose() / ClientResponse.close() there is no such method in the documentation.
This is from the official doc
Related
I've been trying to make use of service.getNavigation() method, but apparently the Request URI is too long which causes this error:
Request-URI Too Long
The requested URL's length exceeds the capacity limit for this server.
Is there a spartacus config that can resolve this issue?
Or is this supposed to be handled in the cloud (ccv2) config?
Not sure which service are you talking about specifically and what data are you passing there. For starters, please read this: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/414
Additionally it would benefit everyone if you could say something about the service you're using and the data you are trying to pass/get.
The navigation component is firing a request for all componentIds. If you have a navigation with a lot of (root?) elements, the maximum length of HTTP GET request might be too long for the given client or server.
The initial implementation of loading components was actually done by a POST request, but the impression was that we would not need to support requests with so many components. I guess we were wrong.
Luckily, the legacy POST based request is still in the code base, it's OccCmsComponentAdapter.findComponentsByIdsLegacy.
The easiest way for you to use this code, is to provide a CustomOccCmsComponentAdapter, that extends from OccCmsComponentAdapter. Then you can override the findComponentsByIds method and simply call the super.findComponentsByIdsLegacy and pass in a copy of the arguments.
A more cleaner way would be to override the CmsComponentConnector and directly delegate the load to the adapter.findComponentsByIdsLegacy. I would not start here, as it's more complicated. Do a POC with the first suggested approach.
I am looking for a way to intercept Session.SaveChanges() so that I may execute some extra work using the same session instance (this is handy in some cases).
Edit: The point about re-using the session is that I have more work that needs to run in the same transaction.
I am already aware of (and make use of) IDocumentStoreListener - but this interface doesn't help because it does not give me access to the current session.
I can't find anything in RavenDb documentation about a way to intercept the call to SaveChanges and get a handle on the current session. Does anyone know of a way?
Open a new session it's free (in terms of performance), I think that IDocumentStoreListener has been thought for what you're looking for. I don't know other that works as you say.
implementing
void AfterStore(string key, object entityInstance, RavenJObject metadata);
you have all the information about the stored entity and then you can do what you need
Hi I am working with Mule Web Service Consumer and i was trying to call operation with Multiple Parameters it is warning me that
Warning : Operation Messages With More then 1 Part Are Not Supported
I just want to pass multiple parameters to access my SOAP method to achieve the task.
Is this the problem with Web Service Consumer or is their any way to deal with this.
I'm afraid this is a known limitation of the web services consumer. However you can accomplish this with the cxf component.
I having the same issue and found some information around it ...
There is a improvement logged in JIRA, may help if you vote for it :)
This link suggests that you can still use WSConsumer but need to do some hand crafting of the request XML ... I could not understand what that exactly it meant so if anyone has an example on it would be great
PS: The problem I had with using CXF component is that it does not play well with the new Dataweave transformer as the Dataweave needs to be placed within the response block and from there it cannot datasense the response coming out from the CXF component
The Solution here is very simple. You just have to comment other messages and then load metadata for non-commented message (for one which you're trying to load metadata). Repeat this procedure for all the other messages and you're good to go.
Hope this helps !
For a RESTful API that I'm creating, I need to have some functionality that get's a resource, but if it doesn't exist, creates it and then returns it. I don't think this should be the default behaviour of a GET request. I could enable this functionality on a certain parameter I give to the GET request, but it seems a little bit dirty.
The main point is that I want to do only one request for this, as these requests are gonna be done from mobile devices that potentially have a slow internet connection, so I want to limit the requests that need to be done as much as possible.
I'm not sure if this fits in the RESTful world, but if it doesn't, it will disappoint me, because it will mean I have to make a little hack on the REST idea.
Does anyone know of a RESTful way of doing this, or otherwise, a beatiful way that doesn't conflict with the REST idea?
Does the client need to provide any information as part of the creation? If so then you really need to separate out GET and POSTas otherwise you need to send that information with each GET and that will be very ugly.
If instead you are sending a GET without any additional information then there's no reason why the backend can't create the resource if it doesn't already exist prior to returning it. Depending on the amount of time it takes to create the resource you might want to think about going asynchronous and using 202 as per other answers, but that then means that your client has to handle (yet) another response code so it might be better off just waiting for the resource to be finalised and returned.
very simple:
Request: HEAD, examine response code: either 404 or 200. If you need the body, use GET.
It not available, perform a PUT or POST, the server should respond with 204 and the Location header with the URL of the newly created resource.
I'm using Netty to write a client application that sends UDP messages to a server. In short I'm using this piece of code to write the stream to the channel:
ChannelFuture future = channel.write(request, remoteInetSocketAddress);
future.awaitUninterruptibly(timeout);
if(!future.isDone()){
//abort logic
}
Everything works fine, but one thing: I'm unable to test the abort logic as I cannot make the write to fail - i.e. even if the server is down the future would be completed successfully. The write operation usually takes about 1 ms so setting very little timeout doesn't help too much.
I know the preffered way would be to use an asynch model instead of await() call, however for my scenario I need it to be synchronous and I need to be sure it get finnished at some point.
Does anyone know how could I simulate an uncompleted future?
Many thanks in advance!
MM
Depending on how your code is written you could use a mock framework such as mockito. If that is not possible, you can also use a "connected" UDP socket, i.e. a datagram socket that is bound to a local address. If you send to a bogus server you should get PortunreachableException or something similar.
Netty has a class FailedFuture that can be used for the purpose of this,
You can for example mock your class with tests that simulate the following:
ChannelFuture future;
if(ALWAYS_FAIL) {
future = channel.newFailedFuture(new Exception("I failed"));
else
future = channel.write(request, remoteInetSocketAddress);