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

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After deploying, I also tested it successfully.
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Hi Experts
I have the follow situation:
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Hi Andre,
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****Pls reward points if u find this helpful

Sharepoint 2013 search error - The search application 'Search Service Application 1' on server is not provisioned.Confirm that the Microsoft SharePoint Foundation Timer service and Central Administration service are running on the server.

Hi All,
I'm getting the below error in My SHarepoint 2013 search Administration page.
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at System.Web.UI.Page.ProcessRequest(HttpContext context)     at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()     at System.Web.HttpApplication.ExecuteStep(IExecutionStep
step, Boolean& completedSynchronously) d4c6939c-b10d-4000-6d95-14caeefe67df
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at System.Web.UI.Page.ProcessRequest(HttpContext context)     at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()     at System.Web.HttpApplication.ExecuteStep(IExecutionStep
step, Boolean& completedSynchronously) d4c6939c-b10d-4000-6d95-14caeefe67df
05/23/2014 13:03:22.82 w3wp.exe (0x46E70) 0x4CBA4 SharePoint Foundation General aat87 Monitorable  d4c6939c-b10d-4000-6d95-14caeefe67df
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05/23/2014 13:03:22.82 w3wp.exe (0x46E70) 0x4CBA4 SharePoint Foundation General ajb4s Monitorable ViewStateLog: Failed to write to the velocity cache:
http://dca-app-617:90/_admin/search/listcontentsources.aspx?appid=e830c1b3-c3e4-4097-85fd-aa5248346d2e d4c6939c-b10d-4000-6d95-14caeefe67df
05/23/2014 13:03:22.82 w3wp.exe (0x46E70) 0x4CBA4 SharePoint Foundation Monitoring b4ly Medium Leaving Monitored Scope (Request (GET:http://dca-app-617:90/_admin/search/listcontentsources.aspx?appid=e830c1b3%2Dc3e4%2D4097%2D85fd%2Daa5248346d2e)).
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Anil Loka

Please try below mentioned steps:
1. Central Administration > Monitoring > Review job definitions > Look for following timer job "Application Server Administration Service Timer Job" > Disable
2. Then open windows administrative services (services.msc), stop SharePoint Timer Service
3. Clear SharePoint Timer configuration cache by following steps mentioned in below blog:
http://blogs.msdn.com/b/jamesway/archive/2011/05/23/sharepoint-2010-clearing-the-configuration-cache.aspx
4. Start SharePoint Timer Service and give it a few seconds so that the new XML files from the location you deleted then are re-populated.
5.Central Administration > Monitoring > Review job definitions > Look for following timer job "Application Server Administration Service" Timer Job > Enable
Please ensure that you mark a question as Answered once you receive a satisfactory response.

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     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: java.lang.ClassNotFoundException: com.ibm.cer_test.extsrv.bapi__mddataset__get__axis__info.output.AXIS__INFO
Loader Info -
ClassLoader name: [ibm.com/cer_test]
Parent loader name: [Frame ClassLoader]
References:
   common:service:http;service:servlet_jsp
   service:ejb
   common:service:iiop;service:naming;service:p4;service:ts
   service:jmsconnector
   library:jsse
   library:servlet
   common:library:IAIKSecurity;library:activation;library:mail;library:tcsecssl
   library:ejb20
   library:j2eeca
   library:jms
   library:opensql
   common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore
   interface:resourcecontext_api
   interface:webservices
   interface:cross
   interface:ejbserialization
   sap.com/cafruntimeear
   library:com.sap.guid
   library:com.sap.util.monitor.jarm
   sap.com/com.sap.jdo
   library:cafmetamodellib
   sap.com/caf~core
   library:cafruntimeconnectivity
   library:cafruntimeconnectivity~base
   service:applocking
   interface:security
   library:cafruntimeapi~lib
   service:tcsecdestinations~service
   interface:tcsecdestinations~interface
Resources:
   C:
usr
sap
J17
JC01
j2ee
cluster
server0
apps
ibm.com
cer_test
src.zip
   C:
usr
sap
J17
JC01
j2ee
cluster
server0
apps
ibm.com
cer_test
EJBContainer
applicationjars
ibm.comcer_testejbmodule.jar
   C:
usr
sap
J17
JC01
j2ee
cluster
server0
apps
ibm.com
cer_test
EJBContainer
clientjars
clientibm.comcer_testejbmodule.jar
Loading model: {parent,references,local}
     at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:382)
     at com.sap.caf.rt.bol.da.remote.MessageEntityConverter.createNewInstance(MessageEntityConverter.java:781)
     ... 50 more
Thanks in advance
Sudip

Hi,
I too got an exception like that.
1. Instead of code
patentServiceLocal local = this.getpatentService();
local.update(OBJECT);
use the following
this.getpatentService().update(OBJECT);
I got by problem solved this way.
Regards,
Srinivasan Subbiah

Calling Web Dynpro-Model of Application-Service doesnu00B4t work.

Hello!
I have created a Composite Application with Entity- and Application-Services. I have also created the WebDynpro-Model and use it in another WebDynpro application to call the services.
I have a Entity-Service 'PollCatalogue' and an Application Service 'PollCatalogueApp'.
When I call an Entity-Service to create an entity, it works:
APollCatalogue pollcat =
 PollCatalogueServiceProxy.createPollCatalogue();
 pollcat.setName(name);
 pollcat.getAspect().sendChanges();
 IServiceFacade serviceFacade;
 serviceFacade =
 CAFServiceFactory.getServiceFacade(diplDefinition.class);
 serviceFacade.save();
But when I call the create-Method of the Application service nothing is created:
the call is similar to above except that
PollCatalogueServiceProxy.createPollCatalogue();
is replaced by
PollCatalogueAppProxy.createPollCatalogue();
Anyway I don´t understand what is done behind the scenes. My create-Methode has one parameter name, because it is a business key. But the ServiceProxy-create-Methods do not provide a name parameter. What service-methods are called when service-facade.save() is called? In case of Entity-Service-Proxy seems to be the create method. But what if I change more than the key-parameter, what else is called? update? And in case of AppServiceProxy? ???
Does anyone understand what is going on here?
Thank you for your help.
Best regards,
Jörg

Hi Jorg,
About getting an exception:
IQuery query =... ;
query.execute() ;
IMessageList mList = query.getResultAspect().getMessages()
if (mList.size() > 0) {
 for (int i = 0; i < mList.size(); i++) {
 IMessage mes = (IMessage) mList.getMessage(i);
 Throwable ex = (Throwable) mes.getExtension();
 ByteArrayOutputStream bAOStream = new ByteArrayOutputStream();
 PrintStream pStream = new PrintStream( bAOStream);
 ex.printStackTrace(pStream);
 //use bAOStream in order to show stacktrace
Regarding conceptual background about Models and Proxys:
You can find some infomation about wd model:
<a href="/people/valery.silaev/blog/2005/09/09/common-model-interface Model Interface</a>
<a href="https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cef4f43e-0d01-0010-db84-ede25c874115">WQhy to use webdynpro common model interface ?</a>
I don't know about some proxies documentation. Possible it does not exist. So, there is brief information about it:
CAF data access services - comcafruntime~uicoupling DC. There is an implementation of com.sap.tc.col.client.generic.api api. These interfaces extends generic CMI interfaces. On top of CAF data access services implementation CAF designer generates typed CMI models which you finally use. For supporting of typed CMI models CAF provides additional build-in functionality GCP(generic client proxy) which directly operates over com.sap.tc.col.client.generic.api generic implementation.
I recommend you to learn CAF data access implementation and read information about CMI model. That's not huge area and it gives you necessary understanding.
Best regards,
Aliaksei
P.S. I don't recommend to learn and investigate the GCP implementation. That's just loss of time. The only thing that you need to know there is a black box layer which converts generic CMI model to typed model. Actually you can use generic model directly without typed. To do this use the following method for service facade getting:
com.sap.caf.ui.utils.cool.CAFServiceFactory.getServiceFacade() ;
but not this one:
com.sap.caf.ui.utils.cool.CAFServiceFactory.getServiceFacade(final Class modelDefinition) ;
and also do not use generated proxies at all, just use CMI api for model info setup for model nodes and other generic CMI api.

WCF Service and Sharepoint Form library : How i can read a access a form libray and query a item from file name and read form xml in WCF service ?

WCF Service and Sharepoint Form library : How i can read or access a form libray and query a item from file name and read form xml in WCF service ?
Ahsan Ranjha

Hi,
In SharePoint 2013, we can take use of REST API or Client Object Model to access the SharePoint objects like Form Library.
SharePoint 2013 REST API
http://msdn.microsoft.com/en-us/library/office/dn450841(v=office.15).aspx
http://blogs.technet.com/b/fromthefield/archive/2013/09/05/working-with-sharepoint-list-data-odata-rest-and-javascript.aspx
SharePoint 2013 Client Object Model
http://msdn.microsoft.com/en-us/library/office/fp179912(v=office.15).aspx
http://msdn.microsoft.com/en-us/library/office/jj193041(v=office.15).aspx
With the retrieved file, we can then use XmlDocument object to parse it and get the values you want:
http://weblogs.asp.net/jimjackson/opening-and-reading-an-xml-file-in-a-document-library
http://stackoverflow.com/questions/1968809/programatically-edit-infopath-form-fields
Best regards
Patrick Liang
TechNet Community Support

Unable to instantiate GP process from CAF application service

Hi,
I am trying to instantiate a process from my CAF application service as follows.
IGPProcess process = GPProcessFactory.getDesigntimeManager().getActiveTemplate("7CE44BF090BF11D99817000D60B211F1",user);
When the execution reaches this step, I am getting the following exception.
com.sap.engine.frame.core.load.SAPClassNotFoundException
I suspect that CAF runtime is not able to load GPProcessFactory class. Is there any settings that need to be done or I have to deploy something on the server?
Please help.
Thanks
Raghav

Hi Raghavendra,
It seems you are using SPS7 !
Check runtime reference for J2ee application in application-j2ee-engine.xml :
<reference
 reference-type="weak">
 <reference-target
 provider-name="sap.com"
 target-type="library">cafeugp~api</reference-target>
 </reference>
Best regards,
Aliaksei

Accessing CAF application service from outside

Hi,
Can CAF application service be called from outside the CAF? Example from a pure JSP page?
Mayukh

You can also call a CAF service via the EJB protocol from JSP. Each CAF Service gets deployed as a Stateless Session bean. You can view these in the IDE if you switch to the J2EE perspective in your CAF project.

CAF Application services project -Error

Hi
I'm creating in CAF Application services project
Application is deployed but go to the CAF UI Admin part get Bellow Error
Failed to get service module: error <null>
Failed to read configuration data from XML fail. Configuration name: <null> Error: Configuration does not exist.
Regards
Srinivas

closed

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

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