Interfacing web services and RT applications

[First, sorry to the NI guys who helped me with this over the phone. It's not that I don't trust your input but in the multitude of counselors there is wisdom.]
If I want to interface my cRIO real-time control loop with the outside world using web services, how do you implement the interface between the web service and the RT app? If the RT app is included as part of the web service, will it start running at target boot time or must it be invoked using the web service?

Aaron--
What I have now is a web service only application--I only have one Build Specification and it is for the RESTful web service. I placed what typically would be my RT application code in the web service Source Files section without any URL mappings to go with it. Then I simply call the top level RT executable code from the web service by static reference and have it return without waiting for code execution to complete. At this point, my "RT app" is running on the cRIO and can communicate with the web service via functional globals.
The fact that my "RT app" does not run at boot time is not an issue in this application so I feel like I'm getting by on a special case. If I needed to run the RT application at boot time with headless operation, I think I would still be having a problem. I just find it a bit quirky that NI's web services put the developer in the situation that, in order to communicate with an RT executable, they must use shared variables (yuck) or implement a mini virtual network. Why not put the web service and the RT app into the same application space and be done with it?
Thanks,
kc64

Similar Messages

Web Service and CAF Application Services - How to return a table

Hello,
I'd like to build a CAF Application Service and expose it as a Web Service. This service should return an array or table which I'd like to display in a Visual Composer model.
I understand that there're limitations at CAF regarding supported data types.
Does anyone know how to get a workaround?
Any information is very appreciated.
Kind regards
Stefan

Hi,
You can return a list.
The standard way to do this is you have to create a complex data type for response.
Configure the cardinality of this data type to 1..n so as to accomodate a list.
In your implementation add your list to this response message and return the list.
This waly you can return collections.
Hope it helps.
Regards,
Srinivasan Subbiah

Diff b/w Web service and window service

What is the difference between web service and window service, whether the both are same or not, Give some explain about that each one and give some examples also.

An XML Web service is a component that implements program
logic and provides functionality for diseparate
applications. These applications use standard protocols,
such as HTTP, XML, and SOAP, to access the functionality.
XML Web services use XML-based messaging to send and
receive data, which enables heterogeneous applications to
interoperate with each other. You can use XML Web services
to integrate applications that are written in different
programming languages and deployed on different platforms.
In addition, you can deploy XML Web services within an
intranet as well as on the Internet. While the Internet
brings users closer to organizations, XML Web services
allow organizations to integrate their applications.
A Windows service starts much before any user logs in to
the system (if it has been setup to start at boot up
process). A Windows service can also be setup in such a way
that it requires a user to start it manually ? the ultimate
customization!
Windows services run as background processes. These
applications do not have a user interface, which makes them
ideal for tasks that do not require any user interaction.
You can install a Windows service on any server or computer
that is running Windows 2000, Windows XP, or Windows NT.
You can also specify a Windows service to run in the
security context of a specific user account that is
different from the logged on user account or the default
computer account. For example, you can create a Windows
service to monitor performance counter data and react to
threshold values in a database.

Difference between a WEB service and a Enterprise Service?

Can Anybody explain me the difference between a WEB service and a Enterprise Service?

Hi Anilkumar K Naidu ,
Web service
A Web service is a self-contained, modularized functionality, which can be published, discovered, and accessed across a network using open standards and which is supported by SAP NetWeaver. Web services cover services provision for integration within an enterprise as well as cross enterprises on top of any communication technology stack, whether asynchronous or synchronous, in any format.
Web Services in the NetWeaver framework play an important role in facilitating the integration of disparate applications from various departments or trading partners and thus increasing business productivity. This benefit allows small and medium businesses also to integrate their business applications with larger trading partners. The benefit derived from this seamless integration introduces security concerns when all the business logic is now being exposed through a standard interface that is a catalyst for security vulnerabilities. SAP Security Managers must use automated diagnostics tools to ensure that the security vulnerabilities are caught in pre-production and in post-production phase.
Web Services Testing: SAP Netweaver Platform
http://www.crosschecknet.com/web_services_testing_SAP.php
How Web services play a key role on the SAP NetWeaver
http://www.sap.info/public/INT/int/index/Category-28943c61b1e60d84b-int/0/articlesVersions-500244687cbd30ffd
How to develop a Simple Web Service Application Using SAP NetWeaver Developer Studio & SAP XI 3.0
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5f3ee9d7-0901-0010-1096-f5b548ac1555
How To... Set Up a Web-Service Related Scenario with SAP xi
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/befdeb90-0201-0010-059b-f222711d10c0
Enhancing Your Web Services with SAP Exchange Infrastructure
http://www.sappro.com/downloads/SAPXI.pdf
Web Services, Part XI: Consuming Multiple Web Services
http://www.webreference.com/js/column106/
Vulneribility assesment of SAP Web Services
http://www.crosschecknet.com/resources/white_papers/sap_va.pdf
Enterprise Service
Enterprise Service-Oriented Architecture (Enterprise SOA)
Enterprise SOA is a blueprint for an adaptable, flexible, and open IT architecture for developing services-based, enterprise-scale business solutions. With SAP NetWeaver as a technical foundation, enterprise SOA moves IT architectures to higher levels of adaptability and moves companies closer to the vision of real-time enterprises by elevating Web services to an enterprise level.
An enterprise service is typically a series of Web services combined with business logic that can be accessed and used repeatedly to support a particular business process. Aggregating Web services into business-level enterprise services provides a more meaningful foundation for the task of automating enterprise-scale business scenarios.
SAP Enterprise Services Architecture
http://en.wikipedia.org/wiki/SAP_Enterprise_Services_Architecture
ENTERPRISE SERVICEORIENTED ARCHITECTURE DESIGN, EVELOPMENT,AND DEPLOYMENT
http://download.sap.com/platform/esoa/brochures/download.epd?context=FB8D5E235B637255604CD1EDB755014400C523BC4E4632245A59C838A212B5F04C71A43F8B38FC591628F4C698D8CAA859405AA974284758
Enabling Enterprise Services
http://help.sap.com/saphelp_nw04s/helpdata/en/80/be7042f1e6d242e10000000a1550b0/content.htm
Enterprise Service-Oriented Architecture
https://www.sdn.sap.com/irj/sdn/enterprisesoa
Define Enterprise Services using the Enterprise Services Community
https://www.sdn.sap.com/irj/sdn/define-es
Enterprise service bus
http://en.wikipedia.org/wiki/Enterprise_service_bus
Enterprise Services Workplace
http://erp.esworkplace.sap.com/socoview(bD1lbiZjPTgwMCZkPW1pbg==)/flddisplay.asp
cheers!
gyanaraj
****Pls reward points if u find this helpful

Consume Web Service in EJB Application

Hi Experts,
I have EJB Application with some Java Classes.My Requirement is to Consume Web Service in EJB Application.
I am new to EJB Application.Please share if have any ideas regarding the same.
Thanks & Regards,
SatheshKumar R

Hi Vijay,
Thanks for the Reply.
Please provide the JAR Files i need to add.
I had tried to consume the web service by using the java class in Java Project ie EJB.
After creating the Project i will import the WSDL file in that Project and create the Client Application.
The Request and Response java class is created by importing the WSDL file.
The Client Java Class is created to access the Request and Response objects.
After this Main class is created and I have run the application to execute the Client Java Class. During this time its shows some error.
The Error Message are:
Exception in thread "main" java.lang.NoClassDefFoundError: com/sap/engine/interfaces/sca/logtrace/CallEntry$TraceLevel
at com.sap.engine.services.webservices.espbase.client.bindings.ConfigurationUtil.getTransportBinding(ConfigurationUtil.java:249)
at com.sap.engine.services.webservices.espbase.client.bindings.ConfigurationUtil.createClientConfiguration(ConfigurationUtil.java:109)
at com.sap.engine.services.webservices.espbase.client.jaxws.metadata.InterfaceMetadata.createClientConfigurationContext(InterfaceMetadata.java:178)
at com.sap.engine.services.webservices.espbase.client.jaxws.metadata.InterfaceMetadata.getProxy(InterfaceMetadata.java:70)
at com.sap.engine.services.webservices.espbase.client.jaxws.core.SAPServiceDelegate.getPort(SAPServiceDelegate.java:258)
at javax.xml.ws.Service.getPort(Service.java:92)
at com.sap.tutorial.testwebser1ejb.TestAddService.getTestAddPort(TestAddService.java:38)
at com.sap.tutorial.testwebser1ejb.TestAddClient.testAdd(TestAddClient.java:12)
at com.sap.tutorial.testwebser1ejb.MainClass.main(MainClass.java:12)
Caused by: java.lang.ClassNotFoundException: com.sap.engine.interfaces.sca.logtrace.CallEntry$TraceLevel
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
... 9 more
Thanks & Regards,
SatheshKumar R

How to deploy a web service on Oracle Application Server 10.1.2.0.2?

Hi everyone,
I followed the instructions of the following link to create a web service using jDeveloper 10.1.3.1.0 on Oracle Application Server 10.1.2.0.2. [http://st-curriculum.oracle.com/obe/jdev/obe1013jdev/10131/devdepandmanagingws/devdepandmanagingws.htm#t1]
The web service created was deployed & used with no errors on the standalone OC4J instance.
But my goal is to deploy my web service on Oracle Application Server 10.1.2.0.2.
So after several attempts, I was able to deploy it on the Oracle Application Server 10.1.2.0.2 but unfortunately I didn't know the URL needed to use the web service.
I tried the following link (http://192.168.0.91:18100/JavaWebService-GetDates-context-root/GetDatesWSSoapHttpPort) but also didn't work :(
I also tried converting to J2EE 1.3 and still not knowing how to access the web service.
Please advice with a solution.
Thanks in advance.
Lana

Thanks everyone for your help :)
The problem turned out to be that Oracle application server 10.1.2 is unlike the others servers, it uses 2 ports:
- port (19100) is dedicated for the console.
- port (7779) is to view your applications.
So the URL needed turned out to be "http://acteos-109.beirut.acteos:7779/beanTest" instead of "http://acteos-109.beirut.acteos:18100/beanTest"
Hope this info is useful
Lana

Calling web service in Oracle Applications...

Is there any way we can call web services in Oracle Applications?
I am using 11.5.10 verison of Oracle Applications.
Thanks in advance,
Sandra

Hey Ravi,
Thanks for your response. I am not well versed with Java. I am using Forms 6i to achieve this. I dont know what java code do I have to put in the custom directory.
The procedure I am following to call web sevice is as follows:
1. Using the webservice URL(.wsdl URL) I am creating the Java class (web service stub) in Jdeveloper.
2. Deploying this Java class into a JAR file.
3. Then I am placing this JAR file in a directory which was spcified in the LD_LIBRARY_PATH and CLASSPATH including the name of the JAR file.
4.Then I go to Forms 6i and say program --> Import Java Classes in my form, it gets the webservice java class and converts that java class into PLSQL packages.proc/func.
Can you please send me an example how you did this to my email?
My email ID is "[email protected]"
Thanks again,
Fubu

Need advice about web services and Java beans

Hi
I am very new to web services and to Java beans as well.
I am trying to understand if and how a web service can use functionality I have in a Java bean. I couldn't find any documentation I can use.
For example:
InitialContext ic = new InitialContext();
Adder adder = (Adder) ic.lookup("ejb/AdderJNDI");In a EJB client project (I'm working with Eclipse) if I add the EJB project to the build path, the Adder interface is recognized.
Theoritacally I thought I can do the same in a web service server project, but the Adder interface is not recognized.
Is there something I can read to understand how I need to use the EJB or implement the web service?
Many thanks
Sigal

Okay....I think I made some errors with the original scenario:
It basically comes down to this....I think. OCS Calendar has a set of Java classes and methods that provide an abstraction for their web services interface. I know how to create something to use these classes using an IDE like JDeveloper, but I'm not sure how that would work with HTML DB.
I've noticed that the SQL Workshop has a place for Java sources and classes, and I've heard mentions of PL/SQL wrapping. Is there a way to import classes into an HTML DB workspace, wrap 'em up, and access them via PL/SQL?
Thanks again,
Jonathan

[jaxrpc] defining web services and WSDL spec

Greetings,
I'm starting in JAXRPC web service's concepts and its WSDL specification. After I tested some samples from the jaxrpc tutorial, I tried to make my custom web service, but, I have problems when I deploy the web service and I tried to see in my browser the endpoint url - I got a internal server exception! I pick up the hello sample, I added to it my custom core sample web service functionality - using the same operations, the same signatures methods - and it worked fine!!
So, what' is wrong? The main difference between them is that I have differents configuration files for xrpcc that will give a wsdl files for each one. Whats changes? The service name? The interface/package name? Is there some kind of limitation in the package name convention with the service names beyound the basic ones in the xrpcc (jaxrpc) specification?
thanks,
Pedro Salazar.

I upgraded webservices developer pack to 1.0 version (final) and I solved my problems!
Pedro Salazar

How to do web services between two applications

I have tried to get a complete example about how to do a web service between two applications in ADF
but I saw all the put examples that describe only how to do a web service and test it in the same application.
Please, I want to see a whole example that shows a web service between two applications (in Oracle ADF).

Hi Frank!
thanks for your reply!!
let me please tell you what I exactly did!!
I built two applications in ADF let's say A and B, and I made a web service from the application A
and I want the application B to use it .. the problem I encountered was that an error raised ..
when I tested the web service in the same applicatin (A) everything was right ..
so can I see a whole example that shows me the exact steps to do it ???
thanks a lot !!

Callin web service in oracle applications...

Can we call web services in Oracle Applications...?
Thanks in advance ...

Hey Ravi,
Thanks for your response. I am not well versed with Java. I am using Forms 6i to achieve this. I dont know what java code do I have to put in the custom directory.
The procedure I am following to call web sevice is as follows:
1. Using the webservice URL(.wsdl URL) I am creating the Java class (web service stub) in Jdeveloper.
2. Deploying this Java class into a JAR file.
3. Then I am placing this JAR file in a directory which was spcified in the LD_LIBRARY_PATH and CLASSPATH including the name of the JAR file.
4.Then I go to Forms 6i and say program --> Import Java Classes in my form, it gets the webservice java class and converts that java class into PLSQL packages.proc/func.
Can you please send me an example how you did this to my email?
My email ID is "[email protected]"
Thanks again,
Fubu

Java app with web service and servlets

Hi. I intend to make a java application which exposes some methods as a web service and as jsp/servlets. It's core functionality is not really web centric, but its more a java app with a web tier. I am not sure about how the architecture of such a system would look like using the java platform. I currently see three options:
1. Run everything in a servlet container like tomcat. I hesitate to do this because i would be putting a lot of functionality which isn't about the web into a servlet container. Also, I have a lot of application scope data that is maintained and shared by all servlets/web services. However, it would be really easy just to put everything into tomcat and use ServletContext to maintain some global objects.
2. Use a Java EE to seperate application/business logic and data access into session beans and entity beans. I hesitate to this because it seem a bit overkill because the system isn't very big or complex right now. It also means that I would have to learn to use EJB's instead of just using some POJOs.
3. Run the web tier in a servlet container and the main app in a separate JVM, and then connect the tier by sending serialized objects over TCP sockets. I don't like writing network code but at least there is some separation of the tiers.
What would you do? Maybe I have overlooked a much better solution to the problem?
Let me just say that the system is the product of a student project spanning one semester, so it's important to choose the RIGHT solution (architectural-wise) instead of the something quick and dirty that is hard to defend.

jschell wrote:
Run everything in a servlet container like tomcatTomcat is a JEE container.Now I am confused. Maybe you mean Glassfish? Tomcat is definitely a web container(?).
Let me just say that the system is the product of a student project spanning one semester, so it's important to choose the RIGHT solution (architectural-wise) That pretty much makes it impossible then.
1. A "Right" solution is generally only proven by time.
2. It requires a great deal of knowledge about the business domain.Yeah, you are right. Let be try to rephrase it. What solution (pattern) would be considered the most common or appropriate when you have a Java App and want to expose a few methods as a website and web service?
I hesitate to do this because i would be putting a lot of functionality which isn't about the web into a servlet container. Also, I have a lot of application scope data that is maintained and shared by all servlets/web servicesHuh? Do you already have an exposed web service? If you already have a server which other clients communicate then where does this functionality that you don't want to be tomcat running now? Or where do you think that you want to run it? And if you are or do run it somewhere else then tomcat could access it the same way any other client accesses that server.Sorry, that sentence was written badly. I don't have anything right now. What I meant to write was that I will have a lot of application scope data, objects that are kept in memory as long as the server is running, shared by multiple servlet instances.

MDM web services and the MDM BP services

Hi *,
I need to know what is the difference between the standard MDM web services and the MDM BP services. How do I decide which set to use?
- Kris

Sorry but what are BP services? Do you mean Business package?
If yes the approaches are completely different - you use Web Services when you have to customise the application and build your logic/functionality into the app. CRUD operations are procided by Web Services - you need to form your wrapper application from scratch and develop!
With BP - it involves least development effort bearing in mind that its all standard content and not yet completely customizable. So based on your requirements plan whether to go for Business Package or Web Services or Java API completely...

Enabling Usage Rights for Web Service and Database connectivity

We are looking for code that allows us to enable web service and database connectivity rights into a form. We are using LiveCycle Forms 7.2 to render the XDP and merge data. Because we are merging data into the form, it has to be reader enabled through the code everytime it is presented to the user in our application.
usageRights[0] = com.adobe.document.pdf.DOCUMENT_SAVE.value;
usageRights[1] = com.adobe.document.pdf.FORM_FILL_IN.value;
usageRights[2] = com.adobe.document.pdf.FORM_EXPORT.value;
usageRights[3] = com.adobe.document.pdf.FORM_IMPORT.value;
usageRights[4] = com.adobe.document.pdf.FORM_ONLINE.value;
Anyone's help would be greatly appreciated

This topic was cross posted. See responses here:
http://forums.adobe.com/message/2111421#2111421

Method as a WEB Service in an Application Service

Dear Colleaguaes,
When importing a web service method into a caf project, and exposing it as method into an application service, is it necessary to create an Entity Service as Web Service wrapper still?
I can check that a web service method works, it returns the data, but it returns nothing when I try to test the corresponding method in the application service.
I've also created a destination in Destination Template Management and done the external service to the destination configured mapping. But still without success....
Thank you in advance,

Hi,
Thanks a lot for your help.
Sorry i didn't specify before but I also have created Web Service Proxy from the URL of my Web Service into my web app. But now I don't now how to use the method that i created on my web service on to my web application.
To be more specific I don't know how to wire the two af:InputText with my web service method in the way when I click the submit button it past the info to web service and which has to return the Student ID :
Ex:
Name: af:InputText
LastName: af:InputText

Interfacing web services and RT applications

Similar Messages

Maybe you are looking for