Could anyone with Ribbon experience help me check if my understanding of Ribbon correct.
Related
Can you tell me how to use Watson Knowledge Studio model improve Watson Discovery Service query ability. I am not sure WKS model can work on the way of Natural Language or Discovery Query Language or both? If it can work on both, how can we get the direct-viewing effects? By confidence or other parameters? Thank you.
You can definitely add entity and relation enrichments by applying a custom model to improve or more appropriately customize Watson Discovery Service. Train your model in WKS and deploy in discovery, then go to discovery top right - click configure data and go to enrichments tab. Add entity and relation and enter your deployed custom model id from WKS and apply. I hope it should help your discovery service to be customized.
I am using Spring Cloud Netflix Zuul along with Eureka in our environment.
I assume internally Zuul uses Ribbon to do the load balancing after obtaining the instance info from Eureka.
I want to customize ribbon configuration when used with Zuul/Eureka.
I am not sure how to configure Ribbon when using with Zuul/Eureka to change to a different load balancing strategy.
If anyone has used that can you share details on the same.
You can simply specify your specific rule in configuration properties, for example:
zuul.routes.example-service.path=/example-service/**
zuul.routes.example-service.serviceId=example-service
example-service.ribbon.NFLoadBalancerRuleClassName=com.netflix.loadbalancer.RetryRule
There is much more settings that you can define:
NFLoadBalancerClassName
NFLoadBalancerPingClassName
NFLoadBalancerRuleClassName
NIWSServerListClassName
NIWSServerListFilterClassName
I'm totally new to SAPUI5 and after learning the classic Dynpro and developing on the SAP GUI I got a few questions about how SAPUI5 works.
As SAPUI5 is developed in Eclipse I'm interested how it could get data from a SAP NetWeaver table.
Do I need a remote call for that? And how does the Eclipse program connect and communicate with NetWeaver?
I didn't find an answer to that, maybe it's just too simple.
Maybe someone have some tips or best practice to share?
Thank you.
SAPUI5 apps are running inside the user's browser and connect to any server with HTTP. This is actually the very standard way of creating client-side web applications. You can use any kind of HTTP server as long as they offer the data at a URL and offer the data in a well-known format like JSON or XML, but when you have a Netweaver server, Gateway and using OData would be the recommended way to go.
Don't think too much about Eclipse. It is not at all required to develop SAPUI5 applications, it just used to be a well-supported editor with additional plugins in the past. Actually SAP WebIDE would be the best-integrated editor now, but you can still use anything from vim to Notepad.
There are plenty of Gateway/SAPUI5 guides on the web, also the official UI5 documentation contains chapters about getting data from the server with OData. I'd recommend doing the entire walkthrough to any beginner!
You have to write a service (as far as I know preferably using SAP NetWeaver Gateway) to expose whatever data and operations you wish to access from the back-end system.
I want to develop and application with the Oracle ADF, but I want a RESTful web service that will allow for other clients (a desktop app, a mobile app, etc...). TO help me determine the best way to do this I have two questions:
Does the ADF have some easy way to create a REST service built into the application?
If not, can I create a JAX-RS web service and hook it up in the same container as the ADF application?
I am thinking that because of what the ADF is, it may be best not to try to create a service with it. If so, please alert me of this.
Now with the release of jDeveloper 12.2.1 ADF comes with inbuilt REST Freamework which will solve all kinds of requirements(CRUD Operations, Custom method invocation, Paging, Data Consistency Check etc.)
The link for getting started with this
https://docs.oracle.com/middleware/1221/adf/develop/GUID-8F85F6FA-1A13-4111-BBDB-1195445CB630.htm#ADFFD589
will help a lot in getting started with REST and ADF.
For getting into more advanced features please follow this link
https://docs.oracle.com/middleware/1221/adf/develop/GUID-589F3905-5A8D-402D-B2D2-3BEEB2D7DDD4.htm#ADFFD54082
this will help in implementing all the other features in the ADF way.
Yes you can build and consume REST from ADF Faces, please see below a step-by-step tutorial for ADF 12c:
http://docs.oracle.com/cd/E53569_01/tutorials/tut_rest_ws/tut_rest_ws.html
This will work well for simple use cases, where there is not much complexity behind data entry screens.
However, you must keep in mind that ADF is most powerful when using Business Components and Bindings. Any other combination will decrease your productivity.
Yes, you can build REST service on top of ADF components, here's a fresh tutorial showing how to proceed with many Java technologies : http://multikoop.blogspot.com/2014/06/create-restful-services-on-top-of-adf.html and also http://waslleysouza.com.br/en/2014/10/expose-adf-bc-restful-web-service/
With JDeveloper 12.2.1 release, an easy way to create REST services has been provided. Using this feature, you can expose the entity objects of your choice as REST resources and then consume them easily via the DC palette.
Take a look at this blog which provides some insight into the same:
http://stick2code.blogspot.in/2015/11/creating-adfbc-rest-services-new.html
I am involved with a team that uses Xcelsius for their dashboard presentation design. I know of options provided by SAP to connect to the database. My team used flynet but lisence issues are pushing us to think of custom webservice. Can design a custom webservice (C# or Java) and use it with Xcelsius. I will realy like to know if its worth it or there are better options for my team. thanks
I was recently involved with an engagement that built out custom web services to both write new and alter existing records in the database. This was the only option for us as SAP does not provide any viable options to write back out of the box. Also, I don't think they (SAP) should but this was a unique requirement that necessitated the workflow.
The web services were in .net