Dynamic configuration of properties/descriptor files?

Hello all,
I am trying to use configuration files used in j2ee applications (property files, deployment descriptors) in a more dynamic manner. I have been searching for a suitable solution for some time now.
I have come across the following syntax within a configuration or properties file in a legacy project that I am to maintain.
<some-tag>
<some-config value=${theVariable}/>
</some-tag>
Notice the JSTL-like syntax ${theVariable}
The above code comes from an xreg config file, read at startup.
I do not think that there is custom code that parses the file so that it is updated, but I think that this is a pretty cool mechanism for dynamic configuration of applications especially if the properties come from the shell environment variables and can be set at will, or from the java -D option.
If anyone knows anything about this technique please respond to the present mail or to [email protected]
thank you,
Joe
Joe

Hi,
I have very similar requirement, In my scenario I need to pick up files from 4 static locations and based on the file name and pick up type(file/ftp) I can find out the destination's connectivity information from a Cross-Referencing table(Based on MS-SQL Database table- I can get this using look API) in this table we maintaining more than 100 destinations(host/user_name/password etc).
Now I need to set the connectivity information dynamically at runtime. I know this is not possible with Standard XI but does anyone thinks this is possible by any technical way using with XI.. Adapter Modules or Java Proxies?
This is very Critical to win the war with other middleware tools. Please let me know your thoughts and comments...
thanks,
Laxman Molugu

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Dynamic configuration required in sender file - Adapter Module

Hi Everybody,
I am developing an Adapter Module in the file adapter (sender) using Adapter Specific Message Attributes.
I am using Dynamic configuration inside the Module Process method in the adapter module.
We are getting an error saying Dynamic Configuration cannot be resolved.
Can anybody tell me the package to be used.
Thanks,
Zabiulla

You can access the dynamic configuration in adapter module like this:
Message msg = (Message) inputModuleData.getPrincipalData();
String fileName = msg.getMessageProperty("http://sap.com/xi/XI/System/File", "FileName");
You do not need any addition library besides the adapter module API.
Hope that helps
Stefan

Dynamic configuration of Receiver FTP File channel

Hi,
The scenario is sending an IDOC from an R/3 system (using IDOC adapter) to a FTP file system. I want to dynamically configure the filename and the target directory in the following cases
1. With filename and the target directory coming as a part of the source IDOC
    structure
2. There is mapping involved (pass thru) and the file name and target directory are
    NOT a part of the source IDOC structure.
I have seen blogs which explains the situation using mapping for File-To-File scenario (Not IDOC-To-File scenario) and some blogs explaining for Http adapter and email adapter, but not for the above scenarios for IDOC-To-File Scenarion.
Your input is highly appreciated.
Regards
Ganesh

hi
use Varable susbtituion in receiver file adapter
you set the Enable indicator, you can enter variables for the Target Directory and File Name Scheme. Enter the names of the variables and references in the table.
●      Enter each variable that you reference in the Target Directory and File Name Scheme fields without the surrounding percentage sign under Name of Variables in the table.
The variables can refer to attributes of the message header or elements of the message payload.
○       If the variables are to refer to an attribute of the message header, add the prefix message: to the name of the variable under Reference. You can specify the following attributes of the message header:
sender_party, sender_service, receiver_party, receiver_service, interface_name, interface_namespace,
message_id (message ID with hyphens, for example 9fbe1ff1-9a0d-11d9-8665-cbf10a126331)
message_id_hex (message ID in hexadecimal format, for example 9fbe1ff19a0d11d98665cbf10a126331)
For example, if you want to specify the interface name from the message header in the target directory or in the file name scheme, enter message:interface_name as the reference.
or look into help
http://help.sap.com/saphelp_nw04/helpdata/en/ae/d03341771b4c0de10000000a1550b0/frameset.htm
please reward points
Thanks
Sreeram.G.Reddy
Message was edited by:
        Sreeram Reddy

Dynamic Configuration-File to File in scenario

Hi Experts,
As per the requirement needs to supress the numeric extensions of the files and transfer to the receiver.
Example: file name is XXX123.txt , but after picking up by sender communication channel in XI that file needs to converts XXX.txt and transfer to the receiver. Finally in the receiver end the file name should be Mahesh.txt only.
Please share the inputs how to do dynamic configuration in XI in File to File scenario.

Hi,
First you need to have a UDF as shown below. No need to put any arguments in the UDF.
public String getFileName(Container container){
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File","FileName");
//get file name in string s
String s = conf.get(key);
//remove all numeric values
int i,l;
l=s.length();
String a="";
for(i=0;i<l;++i)
if(s.charAt(i)>='0' && s.charAt(i)<='9')
continue;
a=a+s.charAt(i);
s=a;
conf.put(key, s);
return s;
Now you need to map this UDF to any root element or dummy element of the target XML structure.
Ensure that
1. Sender Comm Channel has ASMA and file name ticked
2. Receiver Comm Channel has ASMA and file name and "fail if ASMA missing" ticked
3. in receiver communication channel -> File access parameters-> File name scheme -
> put any value say "*". This step is not compulsory.
Hope this solves your problem.
regards
Anupam

Problem:obtaing file name using Dynamic configuration of file adapter

hi all
I am using Dynamic configuration for getting file name.
I am getting Dynamic configuration in SXMB_MONI containg file name, but payload is empty unlike file i am sending.

Hi All,
Basically my requirement to get Filename in idoc segments in order to validate the posting at month end.
Its an File to idoc scenario- GL Posting.
Please check attached UDF and it gives error. Kindly help. Thanks

Dynamic Configuration Bean

Hi Experts,
I am doing a pass through scenario (i.e. ICo) without any ESR objects and I want to add time stamp to the file name at receiver side.
Could you please help me in doing this via Dynamic Configuration Bean?
What I also want to do is to replace file name with interface name through dynamic configuration bean using File adapter in receiver side.
But instead of getting the interface name in place of file name I am getting "message.interface" as file name. I have also used
variable substitution in receiver channel along with ASMA attributes.
Please suggest where I am wrong.
Thanks,
Aamir

Hi Aamir,
We are using only one Module :"AF_Modules/DynamicConfigurationBean" with the type "Local Enterprise Bean" and the system proposes a Module key.
In the above screen shot Module key "1" works as "getFileName" and Module key "2" works as "setFileName" .
Coming to Module configuration for Module key "1" we are providing the Parameter name as "key.1" and Parameter value as :"read http://sap.com/xi/XI/System/File FileName" this value reads the FileName and and repalces the FileName with Interface name based on the Parameter value as "message.interface" (attribute used to fetch the corresponding Interface Name) for Parameter name "value.1".
Module key "2" we are providing the Parameter name as "key.2" and Parameter value as :"write http://sap.com/xi/XI/System/Messaging interface" this value writes the FileName by calling the module.
I have worked with this Dynamic Configuration Bean in both File and SAP SFTP Adapter in SAP PI 7.3 in case of SFTP Adapter we need to follow the following steps.
Thanks
Durga

Accessing dynamically configured filename inside adapter module code.

Hi,
I am having a requirement where i have to access the filename configured using Dynamic configuration inside my receiver file adapter MODULE code. I am having PI7.1.
For accessing the DC filename i have inserted this piece of code inside my adapter module code:
MessagePropertyKey MPK =new MessagePropertyKey("FileName","http://sap.com/xi/XI/System/File");
String filename = msg.getMessageProperty(MPK);
But when i am tesing this module i am getting: "Message processing failed. exception encrypting session key".
This module is basically written for encryption.I am referring this blog:
/people/daniel.graversen/blog/2006/10/05/dynamic-configuration-in-adapter-modules
Do i need to do something else for accessing DC filename inside my module??Please help??
Thanks
Amit

Hi,
My code is something like this:
public ModuleData process(ModuleContext mc,
               ModuleData inputModuleData)
               throws ModuleException {
        Object obj = null;
         Message msg = null;
         MessageKey amk = null;
         String inpKeyLocation = (String) mc.getContextData("inpKeyLocation");
            try {
              obj = inputModuleData.getPrincipalData();
                 msg = (Message) obj;
              amk = new MessageKey(msg.getMessageId(),msg.getMessageDirection());
                XMLPayload xpld = msg.getDocument();
              MessagePropertyKey mpk = new MessagePropertyKey("FileName","http://sap.com/xi/XI/System/File");
              String filename = msg.getMessageProperty(mpk);
              InputStream inps = (InputStream) xpld.getInputStream();
                                    and so on ......
My encryption method somewhere down the line will use "filename" as one of its input.
Please help??
Thanks
Amit
Edited by: AmitSri on May 25, 2010 1:43 PM

Dynamic Configuration File Names

Hi,
I have a RFC->XI->File scenario.
I have to put the target files names based on the calculation of values in 2 fields in the input.
I tried using Dynamic Configuration in my message mapping for this.
This is the code:
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create(u201Chttp://sap.com/xi/XI/System/Fileu201D,u201CFileNameu201D);
String MyFileName = a + "_" + b +".xml";
conf.put(key, myFileName);
I checked ASMA in both the sender RFC adapter as well as the receiver file adapter.
But it never works.
I saw the dynamic configuration tab in SXMB_MONI but i can see only the RFC destination parameter.
Cant see the file filename parameter.
What is the problem here?

No need enable ASMA on RFC sender adapter.
See if the file channel is activated after selecting ASMA with FileName.
The UDF might not be use in the mapping. Check this.
Edited by: Praveen Gujjeti on Feb 23, 2010 1:05 AM

File name cant be fetched from Dynamic configuration...mutli-mapping used

In a scenario, i have a BPM which has a transformation step which contains a mutimapping ...means 2 messages mapped to 1 messgaes, here in the mapping i m using an UDF and written code to extract the file name from dynamic configuration.....
the problem is ...the same BPM contains another transformation step which contains a message mapping (which is not multi mapping), and here the code (UDF) works to fetch the file name...
the code is all correct....and it looks like
DynamicConfiguration conf = (DynamicConfiguration)
container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File","FileName");
String sourceFileName = conf.get(key);
if (sourceFileName == null ){
sourceFileName = "ErrorFile.xml";}
return sourceFileName;

Hi,
Yes u r correct it will show error in operation mapping.. bcoz u cannot check the DynamicConfiguration in Operation mapping...
It will throw Exception..
The parameter to UDF depends on ur requirement.... Let us know ur requirements exactly...
If u r doing for file to file means no UDF required,, just check ASMA on both sides....
Babu

Doubt om Dynamic Configuration of receiver file

Hello ,
for Acheiving the Dynamic configuration of receiver file name ,adapter specific message attribute is used...But how to suppress the name of file in the content of the Received file...
Is my question correct..do we get the file name in content of the receiver file,while using the Adapter specifc message attribute.
And another question ,in the Variable substitution ...do we get the above problem,then how to tackle the situation to suprress the file name in the payload of receiver file.

HI,
You can handle the dynamic file name via Dynamic configuration or with the help of Variable Substitution.
Please refer
have a look
Dynamic File Name using XI 3.0 SP12 Part - I --> Dynamic File Name using XI 3.0 SP12 Part u2013 I
Dynamic file name(XSLT Mapping with Java Enhancement) using XI 3.0 SP12 Part -II --> Dynamic file name(XSLT Mapping with Java Enhancement) using XI 3.0 SP12 Part -II
With Variable Substituion, you may need to supress the filename
Dynamic File Name - Suppress the Substitue varible
Let me know if you need anymore info.
Thanks
Swarup

Dynamic configuration- Is file name stored in any abap table in PI

Hi.
Is there any ABAP table in XI containing the dynamic configuration's xml of a message.
For any file scenario Can I get the file name from any of the abap table in PI
Regards,
Deepak

Interesting ABAP tables in XI
Interesting ABAP tables in XI Part I
Regards,
Phani

Dynamic configuration for PI 7.1 in mapping for file adapter

Hi Experts,
I have used the code below to use dynamic configuration in PI 7.1, but it isnt working..
http://help.sap.com/saphelp_nwpi71/helpdata/en/43/03612cdecc6e76e10000000a422035/frameset.htm.
it shows the file name in the dynamic configuration in the sxmb_moni...
but hen i chekc it in operations mapping..it shows dynamicconfiguration has to be in queue ..
has ne one used it before??
I used a simple UDF to create it without any input parameter and I mapped it to a field n the target side...
has ne one faced a similar situation????
Regrads,
Tauseef

Hi,
Yes u r correct it will show error in operation mapping.. bcoz u cannot check the DynamicConfiguration in Operation mapping...
It will throw Exception..
The parameter to UDF depends on ur requirement.... Let us know ur requirements exactly...
If u r doing for file to file means no UDF required,, just check ASMA on both sides....
Babu

Dynamic Configuration for two file adapters communication channels

Hello Experts!!!!!!
     In one of the interface in my landscape, I am using two file adapters for creating two files with different names and at two different destination on F.T.P.
However the receiver service for both the communication channel are same.
In message mapping I am using multi mapping to create two files out a single message.
Now i have a requirement of changing file path and file name using dynamic configuration for both the comm channel.
When i doing dynamic coniguration for both the comm. channel. My interface is creating two files but with same name and on same destination which is set for second communication channel through dynamic configuration.
Here, I guess the second dynamic configuration is over writing the first dynamic configuration and hence creating two files with same name and at same destination.
Please suggest, if separate dynamic configuration for separate communication channel of same receiver service can be done?
Thanks & Regards,
Amol

Thanks for your prompt responses!!!!!
    Is there any way, By which in dynamic configuration I can find out the communication channel name and then change its parameter.
I mean if iam using say comm. channel A and B.
Then in dynamic configuration for A, I will first take communication channel A by calling it and then change its path/file name.
and then do samething for comm. channel B in its dynamic conf.
Regards,
Amol

File Receiver adapter module Dynamic Configuration

Hi All
I have a adapter module in a receiver file adapter. In the code I try to access the file name through dynamic configuration,The file name gets set in the mapping.
String strFileName = msg.getMessageProperty(new MessagePropertyKey("FileName","http://sap.com/xi/XI/System/File"));
When my module get executed I get error: nested exception is: java.lang.NullPointerException: while trying to invoke the method com.sap.engine.interfaces.messaging.api.Message.getMessageProperty(com.sap.engine.interfaces.messaging.api.MessagePropertyKey) of an object loaded from local variable 'msg'
Is it possible to get file name in receiver adapter? if so why does this error occur?

Yes it is possible...chk this
/people/daniel.graversen/blog/2006/10/05/dynamic-configuration-in-adapter-modules
i guess u have added this import statement in ur code:
import com.sap.engine.interfaces.messaging.api.MessagePropertyKey;
Code will be soemthing like this (FOR PI7.1)
MessagePropertyKey mpk = new MessagePropertyKey("FileName","http://sap.com/xi/XI/System/File");
String filename = msg.getMessageProperty(mpk);
Thanks
Amit

Dynamic Configuration - Set Directory Path for File Receiver Adapter

Hi Experts,
I have a question regarding the dynamic configuration for the file adapter. Is it possible to set a directory path without a message mapping for the file receiver adapter? the problem is that I want to import a pdf document. this pdf document I want to store in a dynamic directory (depending on the filename). so I have to read the filename out of the dynamic configuration and generate (depending on the filename) a directory for this file. Is that possible without a message mapping? I cannot make a message mapping because the file has the pdf format and should not get changed.
best regards
Christopher Kühn

Hi Gaurav,
I use the ASMA (respectively the filename) for the sender adapter. After the pdf was imported into XI this filename is in the ASMA.
But what then??? How can I get this filename with the help of the variable substitution? and if I have this filename I have to change this filename a bit to generate the name / path of the directory.
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Thanks and regards
christopher

Dynamic configuration of properties/descriptor files?

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