Simple java-mapping

can i have a file2file scenario which uses simple java-mapping. As i m new to Java, jus wanna learn how it happens.
I wanna know how to code the Java mapping .....and how to utilize it in the Interface Mapping.....
I know a bit of DOM parsing..

Hi,
see the below links
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/content.htm
DOM parser API
http://java.sun.com/j2se/1.4.2/docs/api/org/w3c/dom/package-frame.html
Check this blog on Mapping:
/people/ravikumar.allampallam/blog/2005/02/10/different-types-of-mapping-in-xi
Also, check this thread for more info,
Different types of Mapping in XI
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-ii
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-iii
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.highlightedcontent?documenturi=%2flibrary%2fxi%2fxi-design_configuration%2ffileValidationsinSAPXI-ACaseStudy.pdf
http://www.cafeconleche.org/books/xmljava/chapters/ch09.html
http://www.cafeconleche.org/books/xmljava/chapters/ch06.html
Check these blogs for reference..
/people/udo.martens/blog/2006/08/23/comparing-performance-of-mapping-programs
/people/ravikumar.allampallam/blog/2005/06/24/convert-any-flat-file-to-any-idoc-java-mapping
java mapping /people/amol.joshi2/blog/2006/03/10/think-objects-when-creating-java-mappings
Regards
Chilla

Similar Messages

Problem in Java Mapping

Hi,
 I was trying out a simple Java mapping example.
Example of source structure is -
<?xml version="1.0"?>
<ns0:MT_SRC xmlns:ns0="http://www.sap-press.com/xi/training/00">
<organization>
<employee>
<firstname>Jack</firstname>
<lastname>Rose</lastname>
</employee>
<employee>
<firstname>Paul</firstname>
<lastname>McNealy</lastname>
</employee>
<employee>
<firstname>Vaibhav</firstname>
<lastname>Pandey</lastname>
</employee>
</organization>
</ns0:MT_SRC>
Example of target structure is -
<?xml version="1.0" encoding="UTF-8"?>
<ns0:MT_TRGT xmlns:ns0="http://www.sap-press.com/xi/training/00"><Organization><employee><name>JackRose</name></employee><employee><name>PaulMcNealy</name></employee><employee><name>VaibhavPandey</name></employee></Organization></ns0:MT_TRGT>
and here's the code I'm using
package com.mapping;
import java.io.*;
import java.util.Map;
import java.util.HashMap;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import com.sap.aii.mapping.api.MappingTrace;
import com.sap.aii.mapping.api.StreamTransformation;
public class JavaMap implements StreamTransformation{
 private Map param = null;
 private MappingTrace trace = null;
 public void setParameter (Map param) {
 this.param = param;
 if (param == null) {
 this.param = new HashMap();
 public void execute(InputStream in, OutputStream out) {
 OutputStreamWriter buf_writer = new OutputStreamWriter(out);
 InputStreamReader buf_reader = new InputStreamReader(in);
 String mat = new String();
 String extmat = new String();
 try {
 buf_writer.write("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\" ?>" ,0,56);
 buf_writer.write("<ns0:MT_TRGT xmlns:ns0=\"http://www.sap-press.com/xi/training/00\">");
 buf_writer.write("<Organization>",0,20);
 buf_writer.flush();
 } catch(IOException e){};
 try {
 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 factory.setValidating(false);
 DocumentBuilder builder = factory.newDocumentBuilder();
 Document doc = builder.parse(in);
 String fname = null;
 String lname = null;
 doc.getDocumentElement().normalize();
 //System.out.println("Root element " + doc.getDocumentElement().getNodeName());
 NodeList nodeLst = doc.getElementsByTagName("employee");
 //System.out.println("Information of all employees");
 for (int s = 0; s < nodeLst.getLength(); s++) {
 Node fstNode = nodeLst.item(s);
 if (fstNode.getNodeType() == Node.ELEMENT_NODE) {
 buf_writer.write("<employee>");
 Element fstElmnt = (Element) fstNode;
 NodeList fstNmElmntLst = fstElmnt.getElementsByTagName("firstname");
 Element fstNmElmnt = (Element) fstNmElmntLst.item(0);
 NodeList fstNm = fstNmElmnt.getChildNodes();
 //System.out.println("First Name : " + ((Node) fstNm.item(0)).getNodeValue());
 fname = fstNm.item(0).getNodeValue();
 NodeList lstNmElmntLst = fstElmnt.getElementsByTagName("lastname");
 Element lstNmElmnt = (Element) lstNmElmntLst.item(0);
 NodeList lstNm = lstNmElmnt.getChildNodes();
 //System.out.println("Last Name : " + ((Node) lstNm.item(0)).getNodeValue());
 lname = lstNm.item(0).getNodeValue();
 buf_writer.write("<name>"fname" "lname"</name>");
 buf_writer.write("</employee>");
 buf_writer.write("</Organization>");
 buf_writer.write("</ns0:MT_TRGT>");
 TransformerFactory tFactory = TransformerFactory.newInstance();
 Transformer transformer = tFactory.newTransformer();
 transformer.setOutputProperty("indent", "yes");
 DOMSource source = new DOMSource(doc);
 StreamResult result = new StreamResult(out);
 transformer.transform(source, result);
 } catch (Exception e) {
 e.printStackTrace();
However, when I'm testing my Interface mapping, I'm getting the following error -
Call method execute of the application Java mapping com.mapping.JavaMap
Error during appliction Java mapping com/mapping/JavaMap
java.lang.StringIndexOutOfBoundsException at java.lang.String.getChars(String.java:672)
Could anyone please help me out with this?
Thanks and Regards,
Shiladitya

HI,
It looks to be that your JavaMap class have one field whihc will be not getting the proper value as input thus its creating the array Index out of bound exception.
Please can you verify if you have assigned the proper String size for all the fields.
Or probably you are getting the blank value which have created the execption.
Also can you narrow down and let me know about the line String.getChars(String.java:672)
Here you have used the try and catch option but may be the exact line no. can give better idea about the problem.
Thanks
swarup

How to prevent java mapping from reloading before each message?

Hi!!!
I've written a simple java mapping (XI 2.0): "Content Enricher" transformation
(source system doesn't send some key information required by target system).
It works fine.
Then I wanted to put some parametrization data into the database.
I added some code to load this data only once into my data structures in the memory.
I also works fine.
But the problem is that SAP XI uses MappingLoader/MappingResolver
to load jar file during transformation of every message.
In a such situation I lose all data and my code has to connect
to the database again (what is not good because of performance).
The question is:
how to configure SAP XI/where to put my code
to achieve a such behaviour: only once my code would load
parametrization from db and then "normal" java mapping could
use it during messages transformation without impact
on the performance?
Regards,
Andrzej Filusz

Hi!!!
Thanks for your answer, but I'm afraid that your solution: singleton pattern doesn't solve my problem.
When XI reload my java mapping classes, all loaded and kept data are lost. Singleton pattern can't prevent it.
I asked SAP about this problem: in XI 3.0 the classes will only be reloaded when a cache refresh has really taken place. But they won't implement this improved behaviour in XI 2.0.
Regards,
Andrzej Filusz

Executing Java mapping for SAP XI using eclipse.

Hi Experts,
I want to create a java mapping for XI scenario in Eclipse IDE.
Actually I need to import some jar files to get the following packages
import com.sap.aii.mapping.api.*;
import com.sap.engine.lib.xml.util.*;
Can anybody tell me, where can I get these packages so that I can test my java mapping.
Regards,
Shri

Hi Shripad,
for location of jar files:->
Ref : michal weblogs Frequently asked question.
How to write java mapping and test->
Ref: Stefan weblog How test simple java mapping.
Before putting a forum, first go for search.
Regards,
Deviprasad.

Dynamic configuration not working in Java mapping

Hi All,
I have a scenario where i am using java mapping. In this i am doing following
1)Read file name from input message header
2)set file name in output message Header
3) set Directory name in output message Header
i have used following code .. but iit is not working... when i test end to end... in reciver communication channel it is failing stating " message failed as "Directory is not set in Header. Also i checked in SXMB_MONI "dynamic configuration".It is not showing Directory.
this is code.
public void transform(TransformationInput transformationInput,TransformationOutput transformationOutput)
               throws StreamTransformationException {
               private Map para;
               String Directory ;
               String inputFileName;
               String var1 = "ABC";
               para = transformationInput.getInputHeader().getAll();
               DynamicConfiguration conf = (DynamicConfiguration) para
                         .get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
               DynamicConfigurationKey keyFileName1 = DynamicConfigurationKey
               .create("http://sap.com/xi/XI/System/File", "FileName");
                     inputFileName = conf.get(keyFileName1);
               DynamicConfigurationKey keyFilename = DynamicConfigurationKey
                         .create("http://sap.com/xi/XI/System/File", "FileName");
               DynamicConfigurationKey keyDirecory = DynamicConfigurationKey
                         .create("http://sap.com/xi/XI/System/File", "Directory");
               Directory = "tmp/"+var1;
               conf.put(keyFilename,inputFileName);
               conf.put(keyDirecory, Directory);
I am in PI 7.1 ,   and in eclipse its showing warning that Para is not used.
Can anyone show some lights.
Also is there any way to debug this?? like is there any function by which i can write the trace for each step to see those in MONI.

Method name:   public void createDirectory(Resultlist result, Container container)throws StreamTransformationException
//Use Simple UDF and do the following lines
String Directory ;
String inputFileName;
String var1 = "ABC";
DynamicConfiguration conf = container
    .getTransformationParameters()
    .get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey keyFileName1 = DynamicConfigurationKey
               .create("http://sap.com/xi/XI/System/File", "FileName");
inputFileName = conf.get(keyFileName1);
DynamicConfigurationKey keyFilename = DynamicConfigurationKey
               .create("http://sap.com/xi/XI/System/File", "FileName");
DynamicConfigurationKey keyDirecory = DynamicConfigurationKey
               .create("http://sap.com/xi/XI/System/File", "Directory");
Directory = "tmp/"+var1;
conf.put(keyFilename,inputFileName);
conf.put(keyDirecory, Directory);
and remove these 3 lines
//private Map para;
//para = transformationInput.getInputHeader().getAll();
//DynamicConfiguration conf = (DynamicConfiguration) para.get(StreamTransformationConstants.DYNAMIC_CONFIGURATION
>>I am in PI 7.1 , and in eclipse its showing warning that Para is not used.Can anyone show some lights.
You can simply remove declaring Map Para line... The eclipse gives warning because you dont assign values for it and you are trying to use...
For using the same input file name in output side, you dont need coding ... you need only for the directory...
Enable ASMA attributes in the channel.
Edited by: Baskar Gopal on Feb 24, 2011 10:58 AM

Graphical Mapping Vs XSLT mapping Vs Java Mapping Vs ABAP Mapping

Hi Experts,
I have a question regarding different message mapping options available in XI namely
Graphical Mapping
XSLT mapping
Java Mapping
ABAP Mapping
Q1: Which amoung the above mappings is the best and why?
Q2: On what cases Graphical, XSLT, Java and ABAP Mapping should be used?
Q3: Is it true that graphical and XSLT mappings are converted into Java class internally?
Kindly help!
Thanks
Gopal
Message was edited by:
gopalkrishna baliga

Hi,
There is no hard and fast rule for using the mapping techniques.
Graphical Mapping is used for simple mapping cases. When, the logic for your mapping is simple and straight forward and it does not involve mult hiearchical mapping requirement. and context handling.
Java and XSLT mapping are used when graphical mapping cannot help you.
When the choice is between Java And XSLT, XSLT is simpler than java mapping and easier. But, it has its drawbacks. XSLT can lead to a bad perfrormance if the Source XML is huge.
Java Mapping uses 2 types of parsers. DOM and SAX. DOM is easier to use with lots of classes to help you create nodes and elements, but , DOM is very processor intensive.
SAX parser is something that parses your XML one after the other, and so is not processor intensive. But, it is not exaclty easy to develop either.
For further info on each of the mapping, refer to these links,
Graphical Mapping,
http://help.sap.com/saphelp_nw04/helpdata/en/6d/aadd3e6ecb1f39e10000000a114084/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/43/c4cdfc334824478090739c04c4a249/content.htm
XSLT Mapping
http://help.sap.com/saphelp_nw04/helpdata/en/73/f61eea1741453eb8f794e150067930/content.htm
http://www.w3.org/TR/xslt20/
Java Mapping
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/content.htm
DOM parser API
http://java.sun.com/j2se/1.4.2/docs/api/org/w3c/dom/package-frame.html
Also, check this thread for more info,
Different types of Mapping in XI
Am not sure about XSLT , but , yes graphical mapping is converted into java classes internally and these classes use SAX parsing as well.
Regards,
Bhavesh

Java Mapping, XSLT Mapping, ABAP Mapping

Hi Experts,
Could any one explain what is the main features of the following Mapping. How to pick the mapping?
Java Mapping - When to use and what is the advantage.
ABAP Mapping - When to use and what is the advantage.
XSLT Mapping - When to use and what is the advantage.
Graphical Mapping - When to use and what is the advantage.
cheers,
Sunee

There are 4 types of mapping in XI
1. Graphical Mapping
2. XSLT Mapping
3. JAVA Mapping
4. ABAP Mapping
When to use Message mapping
1 When the logic for your mapping is simple and straight forward, you can use
Advantages of message mapping
1)Easy to use.
2) has GUI drag and drop.
3) used for simple mapping cases
4) it does not involve any complex logic
Disadvantages of message mapping
1)has limitation in terms of complex hierarchy
When to use Java mapping
1) Java mapping are used when graphical mapping cannot help you.
Advantages of Java Mapping
1)you can use Java APIs and Classes in it.
2) file look up or a DB lookup is possible
3) DOM is easier to use with lots of classes to help you create nodes and elements.
Disadvantages of Java mapping
1)SAX parser is not easy to develop
2)DOM parser is intensive
3) Java knowledge is required
4) bit complexer
XSLT Mapping - When to use
1)When the required output is other than XML like Text, Html or XHTML (html displayed as XML )
2)When default namespace coming from graphical mapping is not required or is to be changed as per requirements.
3)When data is to be filtered based on certain fields (considering File as source)
4)When data is to be sorted based on certain field (considering File as source)
5)When data is to be grouped based on certain field (considering File as source)
Advantages of using XSLT mapping
1)XSLT program itself defines its own target structure.
2)XSLT programs can be imported into SAP XI. Message mapping step can be avoided. One can directly go for interface mapping once message interfaces are created and mapping is imported.
3)XSLT provides use of number of standard XPath functions that can replaces graphical mapping involving user defined java functions easily.
4)File content conversion at receiver side can be avoided in case of text or html output.
5)Multiple occurrences of node within tree (source XML) can be handled easily.
6)XSLT can be used in combination with graphical mapping.
7)Multi-mapping is also possible using xslt.
8)XSLT can be used with ABAP and JAVA Extensions
Disadvantages of using XSLT mapping
1)Resultant XML payload can not be viewed in SXMB_MONI if not in XML format (for service packs < SP14).
2)Interface mapping testing does not show proper error description. So errors in XSLT programs are difficult to trace in XI but can be easily identified outside XI using browser.
3)XSLT mapping requires more memory than mapping classes generated in Java.
4)XSLT program become lengthier as source structure fields grows in numbers.
5)XSLT program sometimes become complex to meet desired functionality.
6)Some XSL functions are dependent on version of browser.
Advantages of Abap Mapping
1) A person comfortable with OOABAP can go for ABAP mapping instead.
Disadvantages of Abap Mapping
1) Abap knowledge is required
2) bit compexer
For further info on each of the mapping, refer to these links,
Graphical Mapping,
http://help.sap.com/saphelp_nw04/helpdata/en/6d/aadd3e6ecb1f39e10000000a114084/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/43/c4cdfc334824478090739c04c4a249/content.htm
XSLT Mapping
http://help.sap.com/saphelp_nw04/helpdata/en/73/f61eea1741453eb8f794e150067930/content.htm
http://www.w3.org/TR/xslt20/
Java Mapping
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/content.htm
DOM parser API
http://java.sun.com/j2se/1.4.2/docs/api/org/w3c/dom/package-frame.html
Check this blog on Mapping:
/people/ravikumar.allampallam/blog/2005/02/10/different-types-of-mapping-in-xi
Also, check this thread for more info,
Different types of Mapping in XI

Abap & java mapping

Can any one give me the simple file 2 file scenario with abap and java mapping?

Hi Venugopal,

ABAP Mapping
I suggest you also go through these links to know more on ABAP Mapping:
https://websmp101.sap-ag.de/~sapdownload/011000358700003082332004E/HowToABAPMapping.pdf
/people/ravikumar.allampallam/blog/2005/02/10/different-types-of-mapping-in-xi
/people/r.eijpe/blog
ABAP Mapping Vs Java Mapping.
Re: Message Mapping of type ABAP Class not being shown
Re: Performance of mappings (JAVA, XSLT, ABAP)
Refer to following SDN Demo which explains the need and how to do the ABAP mapping.
https://www.sdn.sap.com/irj/sdn/docs?rid=/webcontent/uuid/110ff05d-0501-0010-a19d-958247c9f798#jdi [original link is broken]
This document will help you to create ABAP Mapping.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e3ead790-0201-0010-64bb-9e4d67a466b4
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/xi/3.0/how%20to%20use%20abap-mapping%20in%20xi%203.0.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5c46ab90-0201-0010-42bd-9d0302591383

JAVA Mapping
These are two article links on Java mapping i hope this will help u:
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/xi/java%20proxies%20and%20sap%20xi%20-%20the%20inside%20story%2c%20part%201.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/xi/java%20proxies%20and%20sap%20xi%20-%20the%20inside%20story%2c%20part%20ii.pdf
Also go through these Blogs,
/people/ravikumar.allampallam/blog/2005/06/24/convert-any-flat-file-to-any-idoc-java-mapping
/people/michal.krawczyk2/blog/2005/02/25/simple-java-code-in-graphical-mapping--xi
Regards,
Abhy

Should we avoid Graphical mapping and stick with Java mapping?

After developing mappings in XI for a month, I just don't see any good reasons to use Graphical mappings over Java mappings. Maybe some experienced users here can give me some valid reasons why we should choose Graphical mappings. Here is what I think:
Disadvantages of Graphical mappings:
1. No way to perform automated unit testings. This is probably the biggest reason I hate it. You can do some tests manually when you work in Integration Builder. But there is no way you can write some unit testing utilities to automate the task.
2. Complexity. Even for some simple requirements, your Graphical mappings can become complicated and hard to understand. A lot of times, I find myself staring at several dozens of graphical nodes and try to understand what it does.
3. Impossible to reuse. This is totally against the DRY (Don't repeat yourself) principle. For example, to generate messages for JDBC adapter, it is common to have two identical fields for primary keys: one in the access node and another in the key node. If you change the mapping logic in one, you have to remember to change the other.
Advantage with Java mappings:
1. Fully automated unit testing. You can create JUnit tests along with your Java mapping classes and use Maven or other build tools to perform automated unit testing.
2. Your choice of XML parsing and binding. With Java mapping, you can choose any open source framework for XML parsing and binding. For example, with XMLBeans, I can convert XML input message to a Java object, transform to another Java object and write to output message. And each Java object is generated from its corresponding XML schema.
3. Highly reusable. We can use fundamental object-oriented designs to create highly reusable mapping components.
4. Better version control. Since the mappings are just Java classes, we can use CVS or SVN to track code changes.
5. Better build tools. We can fully utilize build tools like Ant and Maven to automate the build, unit tests, or even generate documents and mapping web sites.
So do you guys agree? Maybe I am still new to XI or I am missing some important things. But at this point, I just don't see why I should use Graphical mappings. Is there anyone developing XI interfaces completely with Java mappings?
Thanks in advance for any comments!
Kenny Cheang

Hi Suraj,
> Since its graphical the blocks will take space, but
> there is always an adavntage of processing time.
> Ebven though it may appear bigger, it will take less
> time as compared with Java code (for the same
> mapping).
Could you explain more why the graphical mapping has better performance? I thought the graphical mapping is compiled into a Java class in the runtime anyway.
> Yes thats there, but same goes with Java mapping too
> right (if you haven't mentioned it as constants)
I mainly think about inheritance. If I have to build 10 interfaces and they all have some common behavior, I can create a base interface class to encapsulate the common logic. But with graphical mapping, you have to duplicate them in each interface.
> Disadvantages of Java mapping:
> 1. Performance
Same as above. I just don't see why Java has worse performance. I actually think Java should have better performance. You can optimize the code anyway you want. In some cases, you have to use queue functions in graphical mapping but it's not necessary in Java.
> 2. All might not be well versed with Java Code(though
> everyone may know basic java) .
I am not asking everyone to abandon graphical mapping. I am just wondering which one is better when you have skills for both.
> 3. Lot of standard functions are available in GM
> which you can choose, but you have to remember the
> exact code for those in Java mapping.
You can create functions in Java too. All you have to do is to remember the function name.
Kenny

Problems with Java Mapping in Bpm

Hello to All.
I have a simple scenario...
1) Receiver ( XML1)
2) Transformation
3) Sender (XML3)
I have 3 variables.
Variable 1 XML1
Variable 2 XML2
Variable 3 XML3
In my transformation have two source.. an XML and XML2 and my mapping program is java mapping.
The java mapping modify the XML1 according the XML2 and transform in XML3.
When I run BPM . I have problem , because the flow stop in transformation.

Yes I have tested. But I found the solution.. The java mapping generate a header like <xsi : Message1></>... <xsi : Message2> </>
Thanks.

ABAP Mapping Vs Java Mapping.

We are implementing a project on XI.
We need to freeze on one mapping.
I feel ABAP Mapping provides the following advantages:
1.SXI_MAPPING_TEST is a very good transaction for debugging and testing mapping environment of XI.Iam not sure wether java mapping can be tested after deploying it on XI.
2.ABAP Mapping is well integrated with the XI and also version control becomes very easy as it is provided by the SAP transport system.
3.ABAP also provides user rich/simple API's as java.
4.Support of XI in ABAP would make sustanenace easy as it is going to be a more SAP product and ABAPers are more available in ERP background.
Java punters,Please provide inputs.

Hi,
all of the step in the message flow after a message enter
the IS will be done by the abbap stack e.g. Receiver
determination, interface determination, ... The only one
step that is executed in J2EE-Stack is the mapping.
In the pipline the system jump from the abap stack to
Java stack to execute the mapping if the mapping is done
in Java (message mapping, java mapping, xslt,...).
But if the the mapping is done by abap the the runtime
has not to jump to the java stack to execute the mapping.
Because there is no java code to execute. To clarif: if
you have only abap-mapping the the compete process step
do not include the jump to the j2ee-stack of XI. So in
this case the abap mapping is more performant cause the
runtime stay in the abap stack through the complete
message processing.
But if you have mix mapping e.g. first step abap and
second step java then the j2ee-stack will be used as
well.
regards,
Ly-Na Phu

Regarding Java mapping and ABAP Mapping

Hello,
If I suppose to do Java mapping or ABAP mapping, Is there any pre requisite to perform these two mappings?
If exist what they are?
How to perform them?
Thank you

Hello jyotsna,
Java mapping can be used when you have complex mapping structures.
We can do most of the times for our requirements through Graphical mapping.
When the structures are very complex to build you can go for SAX (Simple API for XML) or DOM (Document Object Model) parsers.
Message mapping internally generates DOM parser.
Java Mapping in XI
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=java+mapping&adv=false&sortby=cm_rnd_rankvalue#
SAP Network Blog: Implementing a Java Mapping in SAP PI
/people/carlosivan.prietorubio/blog/2007/12/21/implementing-a-java-mapping-in-sap-pi
Java Mapping (SAP Library - Partner Connectivity Kit)
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm
SAP Network Blog: XI Java Mapping Helper (DOM)
/people/alessandro.guarneri/blog/2007/03/25/xi-java-mapping-helper-dom
SAP Network Blog: Testing and Debugging Java Mapping
/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio
Binary Conversion in XI - Java Mapping - Code Gallery - Wiki
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/binary%2bconversion%2bin%2bxi%2b-%2bjava%2bmapping
SAP Network Blog: "JAVA MAPPING", an alternate way of reading a CSV file
/people/rahul.nawale2/blog/2006/07/18/java-mapping-an-alternate-way-of-reading-a-csv-file
ABAP mappings run on ABAP Stack and are developed in the ABAP workbench of the Integration Server.
You normally do not need to use the ABAP mappings and is preferable for someone with ABAP programming background. I should say JAVA functions would suffice any complex scenarios.
refer step by step guides for ABAP Mapping
ABAP Mapping
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=abap+mapping&adv=false&sortby=cm_rnd_rankvalue#
How to Use ABAP Mapping in Exchange Infrastructure 3.0 (NW2004)
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/5c46ab90-0201-0010-42bd-9d0302591383
SAP Network Blog: Testing ABAP Mapping
/people/sameer.shadab/blog/2005/09/29/testing-abap-mapping
SAP Network Blog: How to call XI ABAP Mapping via RFC
/people/ricardoandres.maienza/blog/2007/04/06/how-to-call-xi-abap-mapping-via-rfc
SAP Network Blog: XI: ABAP mapping logs - more standard = better visibility
/people/michal.krawczyk2/blog/2006/09/20/xi-abap-mapping-logs--more-standard-better-visibility
SAP Network Blog: Dynamically sending a mail to the PO creator using XSLT- ABAP Mapping
/people/rahul.nawale2/blog/2006/11/01/dynamically-sending-a-mail-to-the-po-creator-using-xslt-abap-mapping
You need to provide the name of your mapping program maually , you see it is an input box.
just provide the name of abap mapping program it will work.
and one more thing you cannot test abap mapping program in integration builer you need to test in abap only.
use tcode: SXI_MAPPING_TEST for testing abap mapping
Thanks,
Satya
Reward points if it is useful..

XSLT or JAVA Mapping

How to choose between XSLT & JAVA Mapping.

HI
Usually Java mapping is preferred when the target structure is relatively complex and the transformation cannot be accomplished by simple graphical mapping.
When to use Java mapping
1) Java mapping are used when graphical mapping cannot help you.
Advantages of Java Mapping.
1)you can use Java APIs and Classes in it.
2) file look up or a DB lookup is possible
3) DOM is easier to use with lots of classes to help you create nodes and elements.
Java mapping can be used when you have complex mapping structures.
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10dd67dd-a42b-2a10-2785-91c40ee56c0b
Java Mapping (Part I)
https://Difference in using java,xslt,message mapping
Java Mapping (Part I)
Java Mapping (Part II)
Check these for JAVA Mapping
Java Mapping (Part I)
Java Mapping (Part II)
Java Mapping (Part III)
Testing and debugging
Testing and Debugging Java Mapping in Developer Studio
Implermenting JAVA Mapping in PI
Implementing a Java Mapping in SAP PI
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10dd67dd-a42b-2a10-2785-91c40ee56c0b
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/400ee77e-f9d6-2a10-2b8c-99281a4dcf6b
XSLT mappings can be imported into the Integration Repository; java methods can be called from within the XSLT style sheet. Advantages of this mapping are: open standard, portable, extensible via Java user-defined functions
XSLT Mapping
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/01a57f0b-0501-0010-3ca9-d2ea3bb983c1
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/9692eb84-0601-0010-5ca0-923b4fb8674a
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/006aa890-0201-0010-1eb1-afc5cbae3f15
xpath functions in xslt mapping
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=xslt+mapping&adv=false&sortby=cm_rnd_rankvalue#
XSLT MAPPING:
Generic XSLT Mapping for SAP XI,Part I
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/01a57f0b-0501-0010-3ca9-d2ea3bb983c1
Generic XSLT Mapping for SAP XI,Part II
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/9692eb84-0601-0010-5ca0-923b4fb8674a
XSLT: Recursive Templates
XSLT: Recursive Templates
Easy RFC lookup from XSLT mappings using a Java helper class
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/05a3d62e-0a01-0010-14bc-adc8efd4ee14
Step u2013 By u2013 Step Simple Approach for XSLT Mapping
Step By Step Simple Approach for XSLT Mapping
Advantages of using XSLT mapping
XSLT program itself defines its own target structure.
XSLT programs can be imported into SAP XI. Message mapping step can be avoided. One can directly go for interface mapping once message interfaces are created and mapping is imported.
XSLT can be used in combination with graphical mapping.
Multi-mapping is also possible using xslt.
XSLT can be used with ABAP and JAVA Extensions.
Disadvantages of using XSLT mapping
Resultant XML payload can not be viewed in SXMB_MONI if not in XML format (for service packs < SP14).
Interface mapping testing does not show proper error description. So errors in XSLT programs are difficult to trace in XI but can be easily identified outside XI using browser.
XSLT mapping requires more memory than mapping classes generated in Java.
It all depends upon the required Scenario and the requirement , which mapping has to be used.
cheers

RFC Lookup using Java Mapping program - Examples

Dear Experts,
I am working on a scenario which is using 1:N mapping. For deciding the target message I have to use RFC Lookup to call the backend ERP system and there are 2 ERP systems involved in this integration. As I am using Java Mapping and never did a RFC Lookup in Java. I kindly request you to give me some examples which I could use for my RFC calls in my Java Mapping. Simple example will do.
Client is adamant to use Java mapping, I could achieve this easily using XSLT or Graphical Mapping.
Advance Thanks,
Pradeep

Hello,
why don't you use Extended Receiver Determination Defining Extended (Dynamic) Receiver Determination - Integration Directory - SAP Library?
What you can do is create a Message Mapping between your source message and Receivers message type. In this message mapping you can use your RFC to generate the target message.
For example, lets say we have the function ZFM_GET_INTERFACE_INFO used to generate the List of Receivers given a source message. You could create a Message Mapping as below:
In this case, the RFCLookup box look as below:
The receiver determination configuration would look as follows:
Afterwards, you will need two specific message mappings for the two ERP systems.
Summarizing, you'll need:
1.- A Message Mapping: Source Message to Receivers Message Type (This one uses the RFC Lookup)
2.- A Message Mapping: Source Message to Target Message for ERP 1
3.- A Message Mapping: Source Message to Target Message for ERP 2
In Integration Directory you'll have 1 Receiver Determination(Source system, Target System determined Dynamically) and 2 Interface Determinations (Source System to ERP1, Source System to ERP2), etc.
I hope you find it useful.
Regards!

About Java Mapping

Hello,
Can any one explain Java mapping when I am sending PO to reciever system? And what are the necessary requirements? And what are the transction codes we will use for this?
Plz...........
Thank you

Hi,
Java mapping can be used when you have complex mapping structures.
We can do most of the times for our requirements through Graphical mapping.
When the structures are very complex to build you can go for SAX (Simple API for XML) or DOM (Document Object Model) parsers.
Message mapping internally generates DOM parser.
Java Mapping in XI
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=java+mapping&adv=false&sortby=cm_rnd_rankvalue#
SAP Network Blog: Implementing a Java Mapping in SAP PI
/people/carlosivan.prietorubio/blog/2007/12/21/implementing-a-java-mapping-in-sap-pi
Java Mapping (SAP Library - Partner Connectivity Kit)
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm
SAP Network Blog: XI Java Mapping Helper (DOM)
/people/alessandro.guarneri/blog/2007/03/25/xi-java-mapping-helper-dom
SAP Network Blog: Testing and Debugging Java Mapping
/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio
Binary Conversion in XI - Java Mapping - Code Gallery - Wiki
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/binary%2bconversion%2bin%2bxi%2b-%2bjava%2bmapping
SAP Network Blog: "JAVA MAPPING", an alternate way of reading a CSV file
/people/rahul.nawale2/blog/2006/07/18/java-mapping-an-alternate-way-of-reading-a-csv-file
Difference in using java,xslt,message mapping
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-ii
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-iii
/people/ravikumar.allampallam/blog/2005/06/24/convert-any-flat-file-to-any-idoc-java-mapping
/people/amol.joshi2/blog/2006/03/10/think-objects-when-creating-java-mappings
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/content.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/43/09b16006526e72e10000000a422035/frameset.htm
/people/venkataramanan.parameswaran/blog/2006/12/12/java-mapping-to-handle-flat-files-in-sap-xi
Thanks
Swarup

Simple java-mapping

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