Proxy in XI

in an abap proxy or java proxy, what is the meaning of "proxy".
i understand "proxy" is a very generic term. what does it mean in XI context, say in "abap proxies" or "java proxies"
thanks,
Ganesh (g22sep)

HI
What are Proxies?
Proxies: are interfaces which will get executed in the application system.They can be created only in the system from message interfaces using the proxy generation functions.
The biggest advantage of the proxy is that it always by passes the Adapter Engine and will directly interact with the application system and Integration engine - so it will and should give us a better performance.
The literal definition of a proxy is an object / process authorized to act for another; an agent or a substitute. In simpler terms, proxies in the XI context are objects used to encapsulate the creation (from a sender system) or parsing of XML (at a receiver system) as well as the communication with the relevant runtime components required to send or receive those messages. The Proxy Runtime controls these objects / processes, and can itself be controlled by the applications it communicates with.
What is Proxy communication.
The aim of proxy communication is to bypass the adapter engine thus providing an adapterless communication. With proxy you save on performance over using adapters and also it reduces complexity.
Where Proxy communication is used i.e in which type of systems or situations.
The Proxy currently has the following components available:
1. ABAP Proxy u2013 Communication using XI or Web Services
2. Java Proxyu2013 Communication using XI (J2EE)
Proxies are objects (classes & methods) generated from a language.
Proxies communicate with the XI server by means of native SOAP calls over HTTP .RFC does not, so you have to convert from SOAP to RFC calls and vice versa. So XML conversion is required.
ABAP Proxies uses Webservice and Http Protocols. And if you use RFC it is mainly meant for Sync. call. But Proxies is used for both Sync and Async.
JAVA Proxies:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a068cf2f-0401-0010-2aa9-f5ae4b2096f9
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-e7eb8903501d
ABAP Proxies:
Integration Builders through proxy server (Part - 2)
ABAP Proxies in XI(Client Proxy)
XI: Reliable Messaging EOIO in ABAP Proxies
XI: Debug your inbound ABAP Proxy implementation
The specified item was not found.
How to raise alerts from ABAP Proxy
Smarter Approach for coding ABAP Proxies
ON SDN TV
https://www.sdn.sap.com/irj/sdn/advancedsearch?query=abap%20proxy%20xi&cat=sdn_all&start=11#
How do you activate ABAP Proxies? - Activate Proxy
when we go for ABAP proxy and Java proxy
How to configure ABAP proxy
ABAP Proxy Scenarios:
File to R/3 via ABAP Proxy
Communication between SAP System & Webservice Using Proxies
ABAP Server Proxies
ABAP Proxies in XI(Client Proxy)
How to configure Java proxy
Java Proxy Scenarios:
Asynchronous Inbound Java Proxy.
ABAP Server Proxies
How to debug a proxy
check this document to see how to debug proxies:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/e29161d3-0401-0010-3495-8593de5f5da6
ABAP proxy generation is part of the SAP Web AS 6.40. ABAP proxy generation enables you to generate proxies to communicate by using the Web service infrastructure and by using SAP Exchange Infrastructure. ABAP proxies that were generated from message interfaces in the Integration Repository (IR) can be used in both infrastructures. This means that if none of the Integration Server services are required for a proxy-to-proxy communication scenario in ABAP, you can use a point-to-point connection using the Web service infrastructure instead.
Java proxy generation in the Integration Builder (Design) generates proxies from message interfaces in the Integration Repository. Java proxy generation packs the proxy objects in a Jar file, which you can save locally. You use the generated classes in J2EE applications on the SAP J2EE Engine.
cheers

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I was recently asked to research whether we can rename some parts of
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http://docs.sun.com/app/docs/doc/820-6599/gdaer?a=view
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http://docs.sun.com/app/docs/doc/820-6599/gbysz?a=view
>
One customer said that it is not "tidy". They don't want the URL to change
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http://docs.sun.com/app/docs/doc/820-6599/gdada?a=view
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>
I have also tried "restart"ing the request like this:
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Hi
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Hi Friends,
I am doing proxy to web service scenario. My proxy is client proxy. After I created proxy, I checked that. There is no standard method 'EXECUTE_ASYNCHRONUS'. I read the Michal's blog /people/michal.krawczyk2/blog/2009/06/20/pixi-abap-proxies-say-goodbye-to-executeasynchronous-method and understand that this method is not created. The reason is that SAP_BASIS support package level is 15. (Release 700) in our R/3 ECC 6.0 system.
Now, I am not able to test my proxy from SPROXY tcode. It asks Logical Port.
1. Can you tell me, what is logical port ? How do I create this in LPCONFIG tcode ?
2. Once this is done, can I call the class with the method like in older version ?
3. Currently I am getting the information 'No vendor specified' while test proxy withe empty logical port.
Expecting your reply.
Kind regards,
Jegathees P.

Hi Rene,
If a logical port is not configured, the X/PI Runtime will be used instead.
In Jegathees' case, this is probably what happened. If you want to route your message through PI then you need to make sure that you are pointing to your Integration Server (i.e. PI), on ECC use transaction code SXMB_ADM --> Integration Engine Configuration. Role of Business System should be "Application System" and "Corresp. Integration Server" should be your PI server.
You will see when you test your client proxy (using TCode SPROXY) you have the option of choosing XI Runtime - or - Logical port too.
Regards, Trevor

Proxy business services in osb

In osb if i want to get data from a client then what is the procedure
I am using a business service whose endpointuri is a proxy service (protocol http)
And this business service is inturn called by my local proxy service
Is this procedure correct ?
if not then what is the correct procedure how many proxy and business services do i need to get data from my client
Thanks,
Rahul

How many Proxy Services and Business Services to use depends on the use case.
For example, if your client will initiate a transaction when it has some data to send to another system then you will have to configure following flow:
First system (wants to send some data)--> Proxy Service(to receive data from Client) --> Business Service (to call the second system) --> second system web service API
Another scenario in which you need to get some data from the second system when requested by the first system (query scenario) the above flow would still remain the same.
Addition of another Proxy service depends on specific use case and scope of re-usability etc. For example if you want to fetch data from a system and that query can be reused in various processes or can also be called from various client applications then you can create a wrapper Proxy above the Business service and call this Proxy Service instead of calling the business service from your Proxy.
Domain structure also is a deciding factor, for example if you want to call a Proxy in one domain from another domain you can use a Business Service in the requesting domain.

Proxy in XI

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