Invoking one web service from another web service

Hi there,
I want to invoke a web service lets say X. But befor sending parameters to this web service, what i want to do is first pass the parameters to a web service called Y and Y will decide wether to call X or not. In other words i want to invoke a web service from another web service.
Its kind of urget so do the needful asap.
Thanks

Calling another webservice from within a webservice does not require anything special. The service (say svc1) that calls another service (svc2) will be a web svc client. So you will have to do the same steps for svc1 as you would do for any other web service client

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Invoke one java application from another?

Hello,
Can anyone tell me how to Invoke one java application from another?
Suppose I have a small java application say, Hello.java which has its own main() method and
I also have another java application, say World.java which has its own main() method too.
What I want to do is invoke or startup World.java from Hello.java.
If possible kindly give code examples?

main is just a normal method so Hello can invoke the main method of World just as it would invoke any other method.
Kaj

Calling a Web Service from another Web Service

Hello,
I have the following scenario: Web Service -> XI -> RFC.
I have created the XI -> RFC configurations in the XI and exposed them as a Web Service. I tested the generated WSDL with WebDynpro for Java and it works well (I also uploaded the WSDL to the XI server and tested it from the wsnavigator).
I have created a Web Service from a Java class, deployed it on the XI server (the same XI server as the one with the RFC scenario), tested it and it works well.
Now I want to call the service I exposed from the XI from inside my Web Service.
How can I do that? Are there any code samples for that? I searched and couldn't find any.

create a standalone proxy for your WSDL of the web service deployed on XI java stack and use its API library in the caller Web service...
find the details here...
http://help.sap.com/saphelp_nw04/helpdata/en/77/1484b9ecb98c41af4a01131d8d46d3/content.htm

Calling one WTC service from another WTC service

Hi,
We have a service called COLLECT defined in our WTC server.
Recently we've added a second service called SUM in the same WTC server.
We were wondering if it's possible to call SUM from COLLECT, and if it is, what configuration changes should be made in order to do it?
Currently both services are exported by the WTC server (and imported by our Tuxedo).
Thanks,
Shy

Hi Shy,
Although I haven't tried it, I'm fairly certain you cannot call a Tuxedo EJB using tpcall() within a WTC based application. What I normally advise customers to do when writing a Tuxedo EJB is to implement two separate interfaces. One is obviously the TuxedoService interface that all Tuxedo EJBs must implement. In particular you must implement the service() method that accepts a TPServiceInformation instance that provides access to the typed buffer passed to the EJB. Normally one then extracts the necessary fields or information from the typed buffer, performs whatever necessary business logic needs to be performed, and then constructs a reply typed buffer.
What I recommend is that you separate out the business logic into a separate interface and have your class implement both interfaces. The service() method would only deal with the marshalling/unmarshalling of the information contained in the typed buffers, and leave all business processing to methods on the second interface. Then if you need to access another "service", you would use the second interface, thus saving you from all the typed buffer manipulation.
So in your case, the business logic in the second interface of the COLLECT implementation would simply call the SUM implementations second interface (the EJB's business logic) instead of trying to call a Tuxedo service. While this helps in reuse of the business logic, it doesn't address the issue of trying to transparently move a service implementation from say Tuxedo to WLS. If that's what you are trying to do, you might try exporting the SUM service from WTC to the Tuxedo domain gateway, and then importing the SUM service from that gateway. This would likely cause a network round trip if it works, but it's something to consider.
Another alternative is to use something like the Apache Tuscany/Java project and build your Java applications using SCA. Tuxedo SALT includes a Tuscany/Java binding extension that allows Tuscany/Java applications to transparently call Tuxedo services. The choice of whether to actually call a Tuxedo service or call a Tuscany/Java based SCA service is determine by the binding selection and not changes in your code. Just a thought...
Regards,
Todd Little
Oracle Tuxedo Chief Architect

Calling web applications from another web application

Hi everyone,
I direly need your suggestions on how to implement the following requirements:
I have a web application (i.e. App A). Then I have other web applications (i.e. App B, App C, App D, etc.) .
For each of the other apps (App B, App C, App D), I need to have 2 variable/attribute settings whose values are to be set (pre-defined) per user.
Meaning one user's values are different from another user.
In App A, I need to call App B, App C, & App D one by one to get the values of the 2 variables/attributes for a particular user accessing App A.
How should I implement this whole scenario such that I can set the values for 2 variables/attributes in App B, C, & D on a per user basis?
Please help me get ideas on what methods or work-arounds to implement in order to achieve this.
Thanks.
blm

Assuming this is running on a server, how about placing your data in application scope?
All applications have access to it. Just make sure every object put in application scope is uniquely named
and that your other application knows its name. One suggestion is to put a collection object (such as a List) in application scope and add items to it. This way, every application will know the collector's name. They can then search through the collection for any object addressed to itself. Just make sure you send data into and out of the collection in a thread safe way. such as by synchronization.
Here is an example of an object that you can store in the collection:
MessageObject{
String fromApplication;
String toApplication;
String message;
}

Error calling web service from another web service

I get the following deployment error:
BUILD FAILED
/home/appgcelc/DS_028/Receive/XMLReceiveService/build.xml:170: Deploy error: Ope
ration failed with error:
Error compiling :/u10/app/gcelc/ora/appserver10131/j2ee/home/applications/XMLRe
ceiveService/ReceiveMessage: Error instantiating compiler: Webservice artifact g
eneration failed:java.lang.IllegalStateException: Service {http://ds.gcss.usmc.m
il/}compsvc for service-ref service/CompressService not found
Below is my web.xml fine...the service ref looks good! What's the issue???
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
version="2.5">
<servlet>
<description>Web Service DefaultDepPort</description>
<display-name>Web Service DefaultDepPort</display-name>
<servlet-name>DefaultDepPort</servlet-name>
<servlet-class>mil.usmc.gcss.DefaultDepImpl</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DefaultDepPort</servlet-name>
<url-pattern>DefaultDepPort</url-pattern>
</servlet-mapping>
<ejb-local-ref>
<ejb-ref-name>ejb/local/SessionFacade</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local>mil.usmc.gcss.SessionFacadeLocal</local>
</ejb-local-ref>
<service-ref>
<service-ref-name>service/CompressService</service-ref-name>
<service-interface>javax.xml.rpc.Service</service-interface>
<wsdl-file>WEB-INF/wsdl/compsvc.wsdl</wsdl-file>
<jaxrpc-mapping-file>WEB-INF/compsvc-java-wsdl-mapping.xml</jaxrpc-mapping-file>
<service-qname xmlns:service-qname_ns__="http://ds.gcss.usmc.mil/">service-qname_ns__:compsvc
</service-qname>
<port-component-ref>
<service-endpoint-interface>mil.usmc.gcss.CompressService</service-endpoint-interface>
</port-component-ref>
</service-ref>
<resource-env-ref>
<description>Data Source for error handling API</description>
<resource-env-ref-name>jdbc/xxmcDS</resource-env-ref-name>
<resource-env-ref-type>javax.sql.DataSource</resource-env-ref-type>
</resource-env-ref>
</web-app>

Well questions related to Web Services have been answered here in past, please Search on SCN for links to it.

Web service as another web service client - problem in JavaEE SE?

Hello,
I observed strange behaviour with OpenESB, Glassfish (build 33) and following scenario:
I need to call web service from another web service. When I use simple schema:
web service client -> web service (as EJB) -> another Web service
everything works. But I would like to use JBI/ESB, so:
web service client -> HTTP SOAP BC -> JAVAEE SE -> web service (as EJB) -> another Web service
the following exception prevents success:
com.sun.xml.ws.model.RuntimeModelerException: runtime modeler error: Wrapper class cz.muni.fi.yucca.client.jbiws.gamanager.Calculate is not fou
nd. Have you run APT to generate them?
at com.sun.xml.ws.model.RuntimeModeler.getClass(RuntimeModeler.java:254)
at com.sun.xml.ws.model.RuntimeModeler.processDocWrappedMethod(RuntimeModeler.java:550)
at com.sun.xml.ws.model.RuntimeModeler.processMethod(RuntimeModeler.java:497)
at com.sun.xml.ws.model.RuntimeModeler.processClass(RuntimeModeler.java:339)
at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:225)
at com.sun.xml.ws.client.WSServiceDelegate.addSEI(WSServiceDelegate.java:584)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:287)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:270)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:263)
at javax.xml.ws.Service.getPort(Service.java:92)
at cz.muni.fi.yucca.client.jbiws.gamanager.GAManagerService.getGAManagerPort(GAManagerService.java:51)
When I call both services separately they work correctly, when I don't use JBI it works correctly too.
Should anybody help me solving this problem?
Thanks in advice, Vlado

Fine,
I've found out that this problem is caused by different classloaders assigned to directly (EJBClassloader) and through-JBI (improperly configured URLClassloader) called web services.
I've moved my question to GlassFish forum (http://forums.java.net/jive/thread.jspa?threadID=24901&tstart=0) beacause of it's "technical" nature.
Despite this, any help is welcome:-)

Consume a Web Service from a Web Page

I had tried out the Tutorial "Consume a Web Service from a Web Page". I have encountered this error :
; nested exception is: java.lang.NullPointerException.
oracle.adf.model.adapter.AdapterException: DCA-40010: The Web Service call failed. The service returned a SOAP fault with the message: [S:Receiver] EJB Exception: : java.lang.NullPointerException
     at oracle.model.freightjb.CalculateFreightBean.calculateFreightCost(CalculateFreightBean.java:23)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
     at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:55)
     at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
     at $Proxy170.calculateFreightCost(Unknown Source)
     at oracle.model.freightjb.CalculateFreight_5vfuh6_WSOImpl.__WL_calculateFreightCost_WS(CalculateFreight_5vfuh6_WSOImpl.java:72)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
I tried to modify abit the code as i changed the web method parameter from object (BatchOrder order) to variables(eg. int) and it works. When I test the Web Services I need to select the include checkbox den it works nicely else i will also encounter this problem. Does this mean the web services can not take it object as parameter?

Hi Paolo,
maybe I faced the same issue. I solved it reading the thread:
web service deployable client
Hope this help
Cheers
Roberto

Calling a Web Service in another Web Service using JDev10.1.3 and AS 10g

I am using JDeveloper 10.1.3.0.4.3673 and Oracle AS 10g 10.1.3 on Windows XP Professional Version 2002 service pack 2.
Has anyone called a web service in another web service? I have not researched this yet. I assume it is possible. I need to get this figured out asap.
My guess is that
1. For the web service which is going to be called in the other web service, you need to create client-side proxy to call the web service - create a static method to instantiate and call the service.
2. I would deploy this client-side proxy Stub which calls the web service along with the other web service which calls it to the Oracle AS 10g.
Is this right? Is there any documentation on this specific thing?

Hi,
rhis kind of orchestration is what BPEL is made for.
http://www.oracle.com/technology/products/ias/bpel/index.html
Frank

Pass data from one web application to another web application

Hi,
Please provide suggestion for following scenario:
Scenario: Basically the aim is to transfer large amount of data from one application to another and display JSP of second application.
User enteres data on a JSP of one web application. When he submits that data, another web application opens in new window and data from first application should be passed to this second web application. Another web application will display that data on its own JSP. User can perform whatever he wants on second application screen.
Possible solutions:
1) response.sendRedirect(): This makes GET request. But, there is large data to send. So, GET is not effective.
2) forward(request, response): Can't use as I have to pass data to different application that is in another context.
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Is there any othe method to achieve this or any of the above options extendable?
Please give your inputs.

Hi,
According to your post, my understanding is that you want to migrate list data from one web application to another.
We can migrate list data programmatically, there are some articles for your reference.
http://blogs.msdn.com/b/tejasr/archive/2007/11/12/code-snippet-copy-list-data-between-sites-programmatically.aspx
http://www.fivenumber.com/copy-sharepoint-list-items-from-one-site-to-another-programmatically/
http://geekswithblogs.net/AnneBougie/archive/2009/01/23/copy-a-sharepoint-list.aspx
Thanks & Regards,
Jason
Jason Guo
TechNet Community Support

Consume Portal Service from J2EE web application

hi, i am a newbie to portal content development. My team have developed a J2EE web application to be run on the portal. Is it possible to consume a Portal Service from J2EE web application? If possible, deeply appreciate if you could provide some guidelines. Kindly advise. Thanks.

Hi Theodore Yu,
You need to expose your portal service as a webservice to consume it in a j2ee web application.
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Padmaja
Edited by: Padmaja Pedapudi on May 20, 2008 2:03 PM

Calling another ITS service from existing ITS service

Hi to Everyone,
I would like your advice on calling another ITS service from existing ITS service.
From my current ITS service eg. "Z_TESTA", i wish to call another ITS service "Z_TESTB". The problem is that it always prompt for userid and password when i called the 2nd ITS service. However, user already enter the password & id when they login to the 1st ITS service. Is there a way to call this new ITS service w/o the userid & password prompt again?
Below is the codes that we used to call the new ITS service:
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OR
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YanaJ

Hi YanaJ,
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Best regards,
Klaus

Calling one WAD Report from another WAD Report

Hi All,
I want to Call one WAD report from another WAD Report and I want to show that Report in a Container of the Calling Report Itself. Kindly give the Solution. Thanks for your support in advance.
Thanks & Regards
Shiva

Hi Shiva,
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Regards,
Pratap Sone

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Hi!
I have got an email sending proxy service I would like to call this from an other proxy service and I want to send attachment in email. I can send email with attachment if i call this proxy as a webservice (e.g. from soapUI)
But if i want to call this email proxy service from other proxy service, the attachment in email is empty. I put a log action (expression: $attachments) in the beginning of email proxy service, and I saw this in the log file:
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I use service callout. I put an insert action in request action of service callout:
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I tried to solve this other. I called an email sending business service from this proxy service. But in this case I cannot set the body of email. If I put just one Transport Header action in publish action, I could send the email (with empty body). But If I put a replace action in publish action as well then the OSB didn't send the email and I couldn't find any error message in log file... How could I set the body of email in publish action?
Thanks!
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https://msdn.microsoft.com/en-us/library/microsoft.sharepoint.administration.claims.spclaimprovidermanager.createuserclaim(v=office.14).aspx
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How sholud we call one jframe class from another jframe class

Hi
In my application i am calling one jframe class from another jframe clas.
how sholud we make previous jframe inactve when another jframe is invoked?(user sholud not able to make any changes on on parent jframe window when another jframe is invoked)
Pls reply.

Sorry for me it is not possible to change existing code,
pls suggest me any other solution so that i can inactive parent jframe when child jframe execution is going on.

Invoking one web service from another web service

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