This blog will show you the basics of XI, XSLT and the Graphical mapping tool. This should give the XI beginner a very basic idea of how to use the SLD, Repository, namespaces, data types and mappings. If you are like me you are probably just itching to get your hands dirty. So first up let's assume you have a XI userid - note that probably at first logon you will need to first logon to XI via SAPGUI to reset the password. You'll also need Java version 1.4+ and Java webstart installed on your PC - get this from Sun website http://java.sun.com/products/javawebstart/download.jsp (http://java.sun.com/products/javawebstart/download.jsp)That is very easy to do if you have a reasonable idea of how XSLT works. It will help you, even using the XI Graphic mapping, to understand the concepts - tree navigation, nodes, context etc. I would recommend you go and buy XSLT for Dummies or one of the many teach yourself XSLT sites and study further on this subject see http://www.w3schools.com/Xsl/default.asp (http://www.w3schools.com/Xsl/default.asp) If you don't have one then get an XSLT editor. E.g. Download this free tool - http://xmlcooktop.com/ (http://xmlcooktop.com/) You can use Cooktop to quickly check any XSLT you prepare before diving into XI.*And an associated DTD to describe the resulting XML*. Tip : If you don't have one but you have the XML you can use a convertor. You can use a online tool to import and create a DTD http://www.hitsw.com/xml_utilites/ (http://www.hitsw.com/xml_utilites/) *
* h3. XSL Archive OK got a handle on XML ? Good now let's do it in XI. First Zip up the XSLs or ones that you might have created during your visit and learning in the world of XSLT. Import them into XI - as can only import these via a zip file. Within the Integration Builder Designer - go to your Software Component Version and namespace you created before. Expand it and expand Mapping Objects. Right Click on Imported Archives. Create a new Imported Archive to hold all our XSL for this exercise Import the zipped files
*Save it.* Then on the left hand navigation pane it will appear.* * h3. External Definition Create an external definition to hold the *DTD for the Source XML file*. With that created select the DTD category and in the Messages choose the First Element. Import the DTD file and Save it. 
Create another *External Definition for the Target* XML file. Remember to choose Category DTD and Messages from First Element 
h3. Message Interface Now we'll need to describe the message interfaces for both the Source and Target files. Again within your SWC Interface Objects, right click on Message Interface - create a new one for the source file. This is the source's outbound interface - so the category is Outbound. Choose the corresponding DTD.
We create another for the Target file. This is the target's inbound interface - so the category is Inbound. Choose the corresponding DTD. Leave the fault message type empty.
h3. Interface Mapping Create a interface mapping for the Source to the Target via the XSL. In the left hand navigation pane, Open the Mapping Objects, right click on Interface Mappings and create. You can drag and drop or select the Source Interface And for the Target Interface Now choose the mapping program as XSL using the one you imported from the zip file you previously set up.
Select the Test Tab and click the xmlbutton to import the source XML file (via the XMLimport icon 
) or cut and paste the XML (via the src icon 
) Press the Test button 
- Hopefully you will have a transformed document.
* h3. XSL Archive OK got a handle on XML ? Good now let's do it in XI. First Zip up the XSLs or ones that you might have created during your visit and learning in the world of XSLT. Import them into XI - as can only import these via a zip file. Within the Integration Builder Designer - go to your Software Component Version and namespace you created before. Expand it and expand Mapping Objects. Right Click on Imported Archives. Create a new Imported Archive to hold all our XSL for this exercise Import the zipped files
*Save it.* Then on the left hand navigation pane it will appear.* * h3. External Definition Create an external definition to hold the *DTD for the Source XML file*. With that created select the DTD category and in the Messages choose the First Element. Import the DTD file and Save it. Create another *External Definition for the Target* XML file. Remember to choose Category DTD and Messages from First Element h3. Message Interface Now we'll need to describe the message interfaces for both the Source and Target files. Again within your SWC Interface Objects, right click on Message Interface - create a new one for the source file. This is the source's outbound interface - so the category is Outbound. Choose the corresponding DTD. We create another for the Target file. This is the target's inbound interface - so the category is Inbound. Choose the corresponding DTD. Leave the fault message type empty. h3. Interface Mapping Create a interface mapping for the Source to the Target via the XSL. In the left hand navigation pane, Open the Mapping Objects, right click on Interface Mappings and create. You can drag and drop or select the Source Interface And for the Target Interface Now choose the mapping program as XSL using the one you imported from the zip file you previously set up.Select the Test Tab and click the xmlbutton to import the source XML file (via the XMLimport icon ) or cut and paste the XML (via the src icon ) Press the Test button - Hopefully you will have a transformed document.
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