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
Similar Messages
-
About Java mapping and java proxy
Hi
Iam new to Xi and basically iam an ABAPER.When iam dooing mappinps or proxies i cant able to understand the java pari cant (javamapping and java proxies) .I need some notes on java mapping and java proxy which is easy to do.And why do we use this java mapping or java proxy particularly when we r having abap mappipng and abap proxy.
thanks in advanceHi,
refer
Java Mapping
SAP Network Blog: Java Mapping (Part I)
/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i
Java Mapping in XI
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=java+mapping&adv=false&sortby=cm_rnd_rankvalue#
Runtime Environment (Java Mappings) (SAP Library - Partner Connectivity Kit)
http://help.sap.com/saphelp_nw04/helpdata/en/bd/c91241c738f423e10000000a155106/frameset.htm
Java Mapping (SAP Library - Partner Connectivity Kit)
http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm
SAP Network Blog: Testing and Debugging Java Mapping
/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio
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", 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
SAP Network Blog: XI Java Mapping Helper (DOM)
/people/alessandro.guarneri/blog/2007/03/25/xi-java-mapping-helper-dom
Java Proxy
Java Proxy Objects (SAP Library - SAP Exchange Infrastructure)
http://help.sap.com/saphelp_nw04/helpdata/en/c5/7d5e3c754e476ee10000000a11405a/frameset.htm
Accessing Active Directory through Java Proxy on SAP Exchange Infrastructure 3.0
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10716e9f-23d7-2a10-8c8c-d2665615f8fc
Thanks
Swarup -
Need help on guide of java mapping
HI,
I want to learn java mapping. I searched in blogs but I am not comfortable to understand. Can anyone explain me the step by step process.
Thanks,
EnivassHi enivas,
Having basic understanding about J2SE will be great help for you. Please check these links about Java Mapping step by step
Implementing a Java Mapping in SAP PI /people/carlosivan.prietorubio/blog/2007/12/21/implementing-a-java-mapping-in-sap-pi
XI Java Mapping Helper (DOM) /people/alessandro.guarneri/blog/2007/03/25/xi-java-mapping-helper-dom
Debugging Java Mappings using SAP Netweaver Developer Studio /people/christian.drumm/blog/2008/09/30/debugging-java-mappings-using-sap-netweaver-developer-studio
Handling and Tracing Runtime Exceptions in Java Mapping /people/prasannakrishna.mynam/blog/2009/07/21/handling-and-tracing-runtime-exceptions-in-java-mapping
SAP PI Java API has changed a lot from PI7.0 to PI7.1. http://wiki.sdn.sap.com/wiki/display/XI/UsingPI7.1APIforJavamapping
Check them out in this link Javadocs Index http://www.sdn.sap.com/irj/sdn/javadocs. Blogs mentioned use old API, but once you get idea about Java mapping switching to new API will be easy. Java help is easily available on net, use Google more. Happy learning.
Regards,
Raghu_Vamsee -
Get dynamic filename in a Java Mapping (NOT UDF)
Hi,
we are using a Java Mapping step in XI (not UDF). We need to have access to the filename. In the File Adapter we set the message attributes and can see the filename value in the SXMB_MONI.
We use the following code fragment to have access to the filename:
Container container = new Context(new FunctionWrapper(0));
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);
This doesn't work. We think the declaration of the container class is wrong. Does anybody have some information about using the dynamic attributes in Java Mappings?
Thanks in advance
Michaelimport com.sap.aii.mapping.api.*;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;
public class JavaProgram
implements StreamTransformation
public JavaProgram()
public void setParameter(Map map)
param = map;
if(param == null)
param = new HashMap();
public void execute(InputStream inputstream, OutputStream outputstream)
try
DynamicConfiguration dynamicconfiguration = (DynamicConfiguration)param.get("DynamicConfiguration");
DynamicConfigurationKey dynamicconfigurationkey = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File", "FileName");
String s = dynamicconfiguration.get(dynamicconfigurationkey);
//Your logic
catch(Throwable throwable)
throwable.printStackTrace();
private Map param; -
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,
ShiladityaHI,
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 -
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 baligaHi,
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 -
Hi Gurus
I wanted some inputs on Java mapping concept in SAP PI 7.0
I do not have a java background but my current project requires me to develop Java mappings in SAP PI 7.0 since the XML structure in the incoming files from the application are very complex and the timelines very tight.
Kindly let me know whats the best approach and how to go about it.
A sample of java mapping or the procedure will be extremely helpful
Also ly a pointer on what all to be as a prerequisite in Core java for the same
Please help
thanks in advanceHello,
>>I do not have a java background but my current project requires me to develop Java mappings in SAP PI 7.0 since the XML structure in the incoming files from the application are very complex and the timelines very tight.
We can also use graphical or XSLT mapping for this
>>A sample of java mapping or the procedure will be extremely helpful
Search SDN you will find many. Please not that the logic is same only the APIs are different
Some blogs:
/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio
https://weblogs.sdn.sap.com/pub/wlg/11170. [original link is broken] [original link is broken] [original link is broken]
/people/venkataramanan.parameswaran/blog/2006/12/12/java-mapping-to-handle-flat-files-in-sap-xi
And for PI7.1
http://wiki.sdn.sap.com/wiki/display/XI/SampleJAVAMappingcodeusingPI7.1+API
http://wiki.sdn.sap.com/wiki/display/XI/JavaMappingSample+Code
>>Also ly a pointer on what all to be as a prerequisite in Core java for the same
DOM and SAX parsing techniques need to be known
Also operations on input and output stream is required
Regards
Suraj -
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 CheangHi 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 -
Java Mapping/UDF/ABAP mapping to capture payload
Hi,
could you please provide me Java mapping code samples (or UDF code) to save payloads of a message based on Message ID
i have a synchronous scenario where i have payloads in sxmb_moni for request and response with different message IDs. So pelase let me know how to save those request and response payloads to a file.
it would be great if you provide the stpes to implement and java code samples....if it is possible with ABAP mapping also please let me know te steps.
Best Regards....SARANTry with this code
import com.sap.mw.jco.IFunctionTemplate;
import com.sap.mw.jco.IRepository;
import com.sap.mw.jco.JCO;
public class PayloadExtractor {
// The MySAP.com system we gonna be using
static final String SID = "SID";
// The repository we will be using
IRepository repository;
JCO.Field msgkeyField;
public PayloadExtractor() {
try {
System.out.println("*** Creating the Pool... ***");
JCO.addClientPool(SID, 10, "001", "user", "pwd", "EN", "host", "00");
repository = JCO.createRepository("RecoverRepository", SID);
} catch (JCO.Exception ex) {
System.out.println("RecoverXI Caught an exception: \n" + ex);
// Retrieves and prints information about the remote system
public void getPayload() {
// A messageID from your XI/PI
String key = "48CD01EB3D27021BE1008000C0A8477D";
final String pipelineID = "CENTRAL";
byte[] msgkey = key.getBytes();
try {
IFunctionTemplate ftemplate = repository.getFunctionTemplate("SXMB_READ_MESSAGE_VERSION_RAW");
if (ftemplate != null) {
System.out.println("*** Creating client and function... ***");
JCO.Function function = ftemplate.getFunction();
JCO.Client client = JCO.getClient(SID);
JCO.Structure struct = function.getImportParameterList().getStructure("MESSAGEKEY");
struct.setValue(key, "MSGID");
struct.setValue(pipelineID, "PID");
// SELECTION must be like this!
function.getImportParameterList().getField("SELECTION").setValue("2");
// This is the msg version number, where 000 is the first (Inbound); the last can be caught from the function output (see below).
// Setting this strongly depends on what you want to get: basically before or after the mapping...
function.getImportParameterList().getField("VERSION_REQUEST").setValue("000");
System.out.println("*** Calling... ***");
client.execute(function);
JCO.Table tb = function.getExportParameterList().getTable("MESSAGEPAYLOAD");
if (tb.getNumRows() > 0) {
// There could be multiple payloads (even if usually it's only one)
do {
String plstr = new String(tb.getField("PAYLOAD").getByteArray());
System.out.println(
"*** Payload found *** " + tb.getField("NAME").getString() + " *** BEGIN ***");
System.out.println(
"Message Last Version: "
+ function.getExportParameterList().getField("MAXVERSION").getString());
System.out.println(plstr);
System.out.println(
"*** Payload found *** " + tb.getField("NAME").getString() + " *** END ***");
} while (tb.nextRow());
} else {
System.out.println("*** No payload found! ***");
// Release the client into the pool
JCO.releaseClient(client);
} else {
System.out.println("Function SXMB_READ_MESSAGE_VERSION_RAW not found in backend system.");
} catch (Exception ex) {
System.out.println("Caught an exception: \n" + ex);
protected void cleanUp() {
System.out.println("*** Cleaning... ***");
JCO.removeClientPool(SID);
public static void main(String[] argv) {
PayloadExtractor e = new PayloadExtractor();
e.getPayload();
e.cleanUp();
-Madhu -
What is value mapping ? when it is used ?
HI,
A perticular object/field could have different interprtations from applications to applications and Business to Business. For e.g Suppose a particular document XYZ has an identity code 001 in one application or may be in one orgnization. But the same document could have different ID in different applications.
With the help of Value Mapping you could map these IDs with each other, thus while transaction of the data XI will act as an smart mapper to pass the Application specific values.
http://help.sap.com/saphelp_nw04/helpdata/en/13/ba20dd7beb14438bc7b04b5b6ca300/frameset.htm
There are many docs available about Value mapping in SDN forum.
How to Perform Value Mapping A Walkthrough
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00ee347e-aabb-2a10-b298-d15a1ebf43c5
http://help.sap.com/saphelp_nw04/helpdata/en/2a/9d2891cc976549a9ad9f81e9b8db25/frameset.htm
SDN Discussions
/people/sukumar.natarajan/blog/2006/10/23/accessing-value-mapping-defined-in-directory-using-java-functions
SAP - XI Value Mapping : Mapping two values to a single value
Value Mapping Issue in SAP XI
thanks
Swarup -
Hi,
I have currently created a java mapping which unzips files and transforms plain text/falt files to xml according to a specific structure... So far so good. This stuff works perfectly when testing interface mapping in the repository. However at runtime it does not work, and this is where you clever guys come into the picture:-)
It should be mentioned that the zip-file is dropped on a MQ-queue and picked up in XI and passed on to a BPM - the only thing the BPM does is to perform the java mapping and afterwards send one of the messages to R/3 and the other to CRM.
The concrete error given at runtime in the PE is:
Error handling for work item 000000718016
Work item 000000718016: Object CL_SWF_XI_MSG_BROKER method CALL_TRANSFORMATION cannot be executed
Parsing error before mapping: unexpected end-of-file (line 1, column 1)
Hope somone can help me on this matter,
Best regards,
Daniel
PS: In case it is of interest/use the java code used is this:
package dk.post.xi.unzipAndConvert;
import java.io.*;
import java.util.Map;
import java.util.HashMap;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import com.sap.aii.mapping.api.MappingTrace;
import com.sap.aii.mapping.api.StreamTransformation;
import com.sap.aii.mapping.api.StreamTransformationConstants;
import com.sap.aii.mapping.api.StreamTransformationException;
public class UnzipMain implements StreamTransformation {
private MappingTrace mappingTrace = null;
private Map param = null;
private StringBuffer currentXmlRecord = new StringBuffer();
private StringBuffer currentPlainRecord = new StringBuffer();
private int[][] dataRanges = null;
private char[] charsInCurrentRange = new char[650];
private String[] xmlTagNames = null;
/* (non-Javadoc)
@see com.sap.aii.mapping.api.StreamTransformation#setParameter(java.util.Map)
Method must be implemented when class is implementing streamTransformation
public void setParameter(Map param) {
this.param = param;
if (param == null) {
this.param = new HashMap();
(non-Javadoc)
@see com.sap.aii.mapping.api.StreamTransformation#execute(java.io.InputStream, java.io.OutputStream)
Main function -- called by XI to start execution of java mapping
public final void execute(InputStream in, OutputStream out)
throws StreamTransformationException
//if no input, then cancel program execution
if (in == null) {
throw new RuntimeException("Something wrong with input zip file - is null");
//input <> null. Begin upzip operation
try {
//test is only relevant outside of XI
if (param != null) {
mappingTrace = (MappingTrace) param.get(StreamTransformationConstants.MAPPING_TRACE );
ZipInputStream zip = null;
try {
zip = new ZipInputStream(in);
ZipEntry ze = null;
out.write("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?><ns0:Messages xmlns:ns0=\"http://sap.com/xi/XI/SplitAndMerge\">".getBytes());
while ((ze = zip.getNextEntry()) != null) {
writeDebugInfo("File: " + ze.getName() + " with compressed size: " + ze.getCompressedSize());
scrutinize(zip,(ZipEntry) ze, out);
out.write("</ns0:Messages>".getBytes());
finally {
if (zip != null)
zip.close();
out.flush();
out.close();
} catch (Exception e) {
throw new RuntimeException(e + "\nSomething went wrong...");
//Unzip flat files and convert to xml
private void scrutinize(ZipInputStream inStream,ZipEntry zipEntry, OutputStream outstream) throws Exception {
long start = System.currentTimeMillis();
InputStreamReader inStreamReader = null;
BufferedReader buffReader = null;
byte[] xmlBytes = null;
try {
inStreamReader = new InputStreamReader(inStream);
buffReader = new BufferedReader(inStreamReader);
boolean masterData = zipEntry.getName().equals("PD-01-STAMDATA.DAT");
boolean creditData = zipEntry.getName().equals("PD-02-KREDITVURDERING.DAT");
String currentLine = null;
if (masterData) {
writeDebugInfo("- Begin reading and converting every line of MasterData..."); //out-comment this outside of XI, or compilation will fail (functionality is only available in XI)
outstream.write("<ns0:Message1><ns1:masterData_MT xmlns:ns1=\"http://pdk/xi/kob/importDataToSap\">".getBytes());
while ((currentLine = buffReader.readLine()) != null) {
//convert one line of credit data plain into an xml record structure
makeXmlRecord(currentLine,true);
//Write record XML to XI's outputstream (appends)
xmlBytes = currentXmlRecord.toString().getBytes();
outstream.write(xmlBytes);
outstream.write("</ns1:masterData_MT></ns0:Message1>".getBytes());
writeDebugInfo("- Finished reading and converting every line of MasterData..."); //out-comment this outside of XI, or compilation will fail (functionality is only available in XI)
if (creditData) {
writeDebugInfo("- Begin reading and converting every line of CreditData...");
outstream.write("<ns0:Message2><ns1:creditData_MT xmlns:ns1=\"http://pdk/xi/kob/importDataToSap\">".getBytes());
while ((currentLine = buffReader.readLine()) != null) {
//convert one line of credit data plain into an xml record structure
makeXmlRecord(currentLine,false);
//Write record XML to XI's outputstream (appends)
xmlBytes = currentXmlRecord.toString().getBytes();
outstream.write(xmlBytes);
outstream.write("</ns1:creditData_MT></ns0:Message2>".getBytes());
writeDebugInfo("- Finished reading and converting every line of CreditData...");
} finally {
long timeUsed = System.currentTimeMillis() - start;
writeDebugInfo(zipEntry.getName() + " - Write took: " + timeUsed + " ms");
writeDebugInfo("Final statement entered...\n");
//check for invalid xml chars (plus a few other strange chars) in a plain text record and if any are found update the ranges of so they correspond to the new length of a record
private int[][] checkRange(String currentPlainLine, boolean isMasterData) {
int counter = 0;
int beginRange = 0;
int endRange = 0;
//populate array with proper data ranges/intervals according to how data is to be split
dataRanges = isMasterData ? new int[][] {{0,2},{2,12},{12,44},{44,47},{47,50},{50,295},{295,298},{298,356},{356,426},{426,496},{496,499},{499,506},{506,510},{510,518},{518,540},{540,546},{546,552},{552,558},{558,564},{564,570},{570,576},{576,582},{582,588},{588,594},{594,604}} : new int[][] {{0,2},{2,12},{12,20},{20,23},{23,26},{26,29},{29,44}};
//ensure stringbuffer is empty
currentPlainRecord.delete(0,currentPlainRecord.length());
//insert the current plain text line into stringbuffer
currentPlainRecord.append(currentPlainLine);
//loop through outer array (array of ranges)
for (int i = 0; i <= (dataRanges.length-1); i++) {
beginRange = dataRanges<i>[0];
counter = beginRange;
endRange = dataRanges<i>[1];
//loop through stringbuffer, based on the value-pairs of ranges/intervals in array of arrays
while (counter < endRange) {
switch (currentPlainRecord.charAt(counter)) {
case '&':
currentPlainRecord.insert(counter+1,"amp;"); //insert 'amp;' after '&', so that syntax conforms to xml syntax requirements (&)
counter += 5; //increment counter so that it continues after insertet characters
updateRange(counter,4); //update the array of ranges so that is corresponds to the new range
break;
case '\'':
currentPlainRecord.replace(counter,counter+1,"&"); //replace '\'' with '&'
currentPlainRecord.insert(counter+1,"apos;"); //insert 'apos;' after '\'', so that syntax conforms to xml syntax requirements (')
counter += 6; //increment counter so that it continues after insertet characters
updateRange(counter,5); //update the array of ranges so that is corresponds to the new range
break;
case '"':
currentPlainRecord.replace(counter,counter+1,"&"); //replace '"' with '&'
currentPlainRecord.insert(counter+1,"quot;"); //insert 'quot;' after '"', so that syntax conforms to xml syntax requirements (")
counter += 6; //increment counter so that it continues after insertet characters
updateRange(counter,5); //update the array of ranges so that is corresponds to the new range
break;
case '<':
currentPlainRecord.replace(counter,counter+1,"&"); //replace '<' with '&'
currentPlainRecord.insert(counter+1,"lt;"); //insert 'lt;' after '&', so that syntax conforms to xml syntax requirements (<)
counter += 4; //increment counter so that it continues after insertet characters
updateRange(counter,3); //update the array of ranges so that is corresponds to the new range
break;
case '>':
currentPlainRecord.replace(counter,counter+1,"&"); //replace '>' with '&'
currentPlainRecord.insert(counter+1,"gt;"); //insert 'gt;' after '&', so that syntax conforms to xml syntax requirements (>)
counter += 4; //increment counter so that it continues after insertet characters
updateRange(counter,3); //update the array of ranges so that is corresponds to the new range
break;
case 0x7F:
currentPlainRecord.replace(counter,counter+1," "); //replace 0x7F with ' '
writeDebugInfo("-- Corrected the character 0x7F ('') to ' '");
counter++;
break;
case '':
currentPlainRecord.replace(counter,counter+1," "); //replace 0x91 ('') with ' '
writeDebugInfo("-- Corrected the character '' to ' '");
counter++;
break;
case '':
currentPlainRecord.replace(counter,counter+1," "); //replace 0x9B ('') with ' '
writeDebugInfo("-- Corrected the character 0x9B to ' '"); counter++;
break;
case '':
currentPlainRecord.replace(counter,counter+1," "); //replace '' with ' '
writeDebugInfo("-- Corrected the character '' to ' '");
counter++;
break;
default :
counter++;
break;
return dataRanges;
//update array of ranges so that is corresponds to the new range
private void updateRange(int currentRange, int updateRangeBy) {
for (int k = currentRange; k < dataRanges.length; k++) {
if (k != currentRange) { //never update begin interval for the current range - only for the remaining intervals
dataRanges[k][0] += updateRangeBy;
dataRanges[k][1] += updateRangeBy; //always update end intervals
//convert one flat record line to a xml record structure
private void makeXmlRecord(String currentPlainLine,boolean isMasterData) {
dataRanges = checkRange(currentPlainLine,isMasterData);
//clear StringBuffer
currentXmlRecord.delete(0,currentXmlRecord.length());
//get the correct set of xml tags to be used when performing mapping between plain text and xml
if (isMasterData) {
xmlTagNames = new String[] {"dum1","kob_no","dum2","corp_status","legal_form","dum3","pr_protec_code","dum4","uri","email","emp_no_grp_code","exact_no_emp","dum5","founding_date","dum6","main_industry_code","industry_code1","industry_code2","industry_code3","industry_code4","industry_code5","industry_code6","industry_code7","industry_code8","dum7"};
} else {
xmlTagNames = new String[] {"dum1","kob_no","rating_date","rating_value","risc_grp_code","currency","max_credit"};
//copy all chars in stringBuffer to the specified char[]
currentPlainRecord.getChars(0,currentPlainRecord.length(),charsInCurrentRange,0);
//populate XML record structure
currentXmlRecord.append("<record>");
for (int i = 0; i < xmlTagNames.length; i++) {
currentXmlRecord.append("<" + xmlTagNames<i> + ">");
currentXmlRecord.append(charsInCurrentRange,dataRanges<i>[0],(dataRanges<i>[1])-(dataRanges<i>[0]));
currentXmlRecord.append("</" + xmlTagNames<i> + ">");
currentXmlRecord.append("</record>");
//write debug information to correct "place"
private void writeDebugInfo(String debugInfo) {
if (mappingTrace == null) {
System.out.println("Debug: " + debugInfo);
} else {
mappingTrace.addInfo("Debug: " + debugInfo);Hi Alex,
Thanks for your reply. First of all I was wondering if I missed something somewhere in my generel understanding of XI and BPM's!? - I kind of sense some irony/sarkasm in beginning of your reply:-) As far as I know BPM should have no trouble receing non-xml (in my case zip-files)!?
Anyways here goes:
1. Yes, this is also my impression that is should be possible somehow (we do currently run sp14). However, I havent yet figured out how to do it in this case. When trying to create interface mapping between the three involved software components, I get a 'MESS_MULTI_MAP_IF_WRONG_SWCV' three times. I've searched around without being able to find any information on the error. I does seem, though, like the problem is that all objects aren't in the same software component!! But this approach is of course the prefered one...
2. Well - you got me there. Kind of expected someone to point that out:-) This is of course something to be looked into also in order to "improve"/"enhance" the program - though it, as already pointed out, works perfectly as is.
3. This part I have also thought about - though quickly moved away from the idea, but that is only due to lacking insight/knowhow on the subject. Interesting weblog you have written, something so I will investigate further when time allows for it:-)
Best regards,
Daniel -
Exception while perfroming Java mapping in XI
Hi there,
Im doing some java mapping in XI using the standard/classic DOM and JAXP packages, I have tested everything outside XI and the code seems to be OK.
However when I deploy the code into XI self and run a test, something goes wrong.
This is the exception Im getting from my log (PS: In th eyes of XI eveything goes fine, but this is because I have all my code surrounded by try/catch statements...):
<b>java.lang.ClassCastException: com.inqmy.lib.xml.dom.DocumentImpl</b>
1) First, what I dont understand here is the fact that Im not doing any kind of parsing to this type "com.inqmy.lib.xml.dom.DocumentImpl" in my code, so Why XI is doing this?
2) It seems to me like XI internally uses this "fancy" INQMY package to perform my XML parsing/mapping. But nowhere in the documentation is mentioned, at least I haven't read about it.
3) Is there anyplace where I can find/download this package "com.inqmy.lib.xml.dom.*" so that I can test/debug my code using this specific SAP pacakge?
Can anyone give me some clues how to solve and prevent this issue? Below is the part of the code where the exception is generated:
private void processMultiMessages(Vector indexVector, NodeList msgList) {
Iterator iter = indexVector.iterator();
Integer tempIndex = null;
int index = 0;
try {
for (int i = 0; i < indexVector.size(); i++) {
tempIndex = (Integer) indexVector.elementAt(i);
index = tempIndex.intValue();
Range range = ((DocumentRange) mainDocument).createRange();
range.setStartBefore(msgList.item(index));
if ((i + 1) > (indexVector.size() - 1)) {
index = msgList.getLength() - 1;
range.setEndAfter(msgList.item(index));
} else {
tempIndex = (Integer) indexVector.elementAt(i + 1);
index = tempIndex.intValue();
range.setEndAfter(msgList.item(--index));
createNewMsg(range.cloneContents());
range.detach();
getSystemParams().put("STATUS", "OK");
getSystemParams().put("TOTAL_MSG", new Integer(indexVector.size()));
getSystemParams().put(
"STATUS_MSG",
"Target directory on XI Server: " + folder);
this.out.write(
new LogDocument().createDocument(getSystemParams()).getBytes());
} catch (Exception e) {
getSystemParams().put("STATUS", "FAIL");
getSystemParams().put("TOTAL_MSG", new Integer(indexVector.size()));
getSystemParams().put(
"STATUS_MSG",
"** Exception in Java Mapping: " + e.toString() +" ** System error: " + System.err);
try {
this.out.write(
new LogDocument()
.createDocument(getSystemParams())
.getBytes());
e.printStackTrace();
} catch (IOException ioE) {
ioE.printStackTrace();Hi there,
I have included the inqmyxml.jar in my classpath and perfor
med some tests (outside XI), with good results.
However, when I copy/deploy the same classes into XI then the problem still there. My Java class is complaining about some ClassCastException, the error looks like this:
java.lang.ClassCastException: com.inqmy.lib.xml.dom.DocumentImpl
has anyone any ideas/clues was happening here?
Cheers,
Rob.
PS: These are the packages Im importing in my class:
import com.sap.aii.mapping.api.*;
<i>import java.io.*;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import org.w3c.dom.*;
import org.w3c.dom.ranges.*;
import com.inqmy.lib.jaxp.*;
import com.inqmy.lib.xml.*;
import com.inqmy.lib.xml.parser.*;
import com.inqmy.lib.xml.dom.*;</i>
And these are the Global vars Im using:
<i> // declare Global vars
private Map systemParams;
private InputStream in;
private OutputStream out;
private DocumentBuilderFactory domFactory;
private DocumentBuilder documentBuilder;
private Document mainDocument;
private String path;
private String separator;
private File folder;</i>
And finally this is the way I start my mapping/parsing process:
<i> ClassLoader cl = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
domFactory = DocumentBuilderFactoryImpl.newInstance();
Thread.currentThread().setContextClassLoader(cl);
// Optional: set various configuration options
domFactory.setIgnoringComments(true);
domFactory.setIgnoringElementContentWhitespace(true);
domFactory.setValidating(false);
domFactory.setCoalescing(false);
// Create and set documentBuilder
documentBuilder = domFactory.newDocumentBuilder();
// parse the input file
mainDocument = documentBuilder.parse(in);
</i> -
How to pass input parameter (parameterized mapping) to java mapping program
Hello
I have a question about the parameterized mapping with Java (PI 7.1).
In the operation mapping (using Java-class) I defined a inputer parameter (string). I think I am supposed to retrieved the value using:
arg0.getInputParameters().getString("myInputParameterName");
where arg0 is the TransformationInput object.
However I am not able to get the value, I got runtime exception saying the inputer parameter doesn't exit.
Then I figured out maybe I need to bind the OM input parameter to Java mapping parameter, just like in case of message mapping, you need to bind OM parameter to MM parameter. However there is no way to define input parameter for the java mapping program.
Anybody has done java mapping with parameterized mapping?
Anybody can give any hint for this?
Thanks
JaysonInputParameters params = container.getInputParameters();
DynamicConfiguration conf = (DynamicConfiguration) params.getValue(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File", "Directory");
http://help.sap.com/saphelp_nwpi71/helpdata/en/43/03612cdecc6e76e10000000a422035/content.htm
Edited by: Anand on Dec 10, 2008 4:13 PM -
Java mapping of application triggered an exception
Hi,
We have ascenario where a vendor will be sending us a cXML file which has the second line as <!DOCTYPE cXML SYSTEM "http://xml.cxml.org/schemas/cXML/1.2.009/InvoiceDetail.dtd">. If I open it in XMLSpy, it is saying the file as invalid. XI is unable to map this file. So we decided to remove that line using Java mapping and then do the regular graphical mapping.
I took the java code from the SAP note 812966 and used the aii_map_api.jar, dom.jar, jaxp-api.jar to create the class of that java file and used that class file by importing that into XI as a jar file.
I'm getting this error in the request message mapping of SXMB_MONI
<SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="">
<SAP:Category>Application</SAP:Category>
<SAP:Code area="MAPPING">STREAM_TRANSFORMATION_EX</SAP:Code>
<SAP:P1>mypackage/DeleteDTDDeclarationWithDOM</SAP:P1>
<SAP:P2>Failed to load resource from the context classloa~</SAP:P2>
<SAP:P3 />
<SAP:P4 />
<SAP:AdditionalText />
<SAP:ApplicationFaultMessage namespace="" />
<SAP:Stack>Java mapping of application triggered an exception</SAP:Stack>
<SAP:Retry>M</SAP:Retry>
</SAP:Error>
I'm new to this java mapping, Can you please provide me some details about what files need to be loaded into the XI along with the class file.
Appreciate you help.
Thanks,
MT.Hi Prateek,
Thanks for your quick reply. Yes I have downloaded the aii_map_api.jar from <SAP_install_dir>/<system_name>/<instance_name>/j2ee/cluster/server<number>/apps/sap.com/com.sap.xi.services/
And also I have compiled my java code using the dom.jar, sax.jar, jaxp-api.jar and aii_map_api.jar.
I took the class file of my javacode and all the class files of the above mentioned jar files and prepared one single jar file, which I imported into XI.
It is not allowing me to make a single jar of the actual class file and all the supporting jar files.
What is the actual method of doing it.
Appreciate all your help. Thanks very much.
Thanks,
Maulik. -
Hi Guys
Validations using Java for those not having PI7.1
I followed this blog for validation of XML.
I have coded the JAVA Program in NWDS as per the blog, all fine but am not sure about the schema step.
What i did was:
1) Exported the .xsd of the Message type.
2) Then Schema.xml file creation i am not sure of it
Do any one know how to do that , and what is the purpouse of the Schema method in the Java Mapping.
Is this blog does a input initerface format check and write in to a log.
But cannot we do this with the help of Alert by triggering mails ??
Can we achieve element level vaslidation (to all element of the XML) using this method.
Kindly share u r views
SriniHi Santosh,
Thx for u r reply.
I understood what u r saying .
One more question :
See u r Doc is validating particular element , date and time using api.All good, what if i need to validate entire XML Elements , should i repeat the same for entire element.
i was so curious with his blog because , it was generic and moreover i thought i can validate entire XML , by not sticking to particular element.
What is IA ?? U Memtioned ??
Could above requirment can be achieverd r else i should get each element and validate , no other go
based upon on the outbound interface
regards
srini
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