Error in Java mapping

[maheswarareddykonda]

Hi All,

I am very new to Java mapping and working on the same for replacing the few strings with some data.

but when i tried to test that mapping, i am facing below exception.

below is the java code which i am using..

package com.javaMapping;

import java.io.*; 

      import com.sap.aii.mapping.api.*; 

     public class WellformedXML_JavaMapping extends AbstractTransformation { 

         @Override 

         public void transform(TransformationInput transformationInput, TransformationOutput transformationOutput) throws StreamTransformationException { 

           try { 

               InputStream inputstream = transformationInput.getInputPayload().getInputStream(); 

               OutputStream outputstream = transformationOutput.getOutputPayload().getOutputStream(); 

               byte[] b = new byte[inputstream.available()]; 

               inputstream.read(b); 

               String inputContent = new String(b); 

               String[] originalvalue={"{\"ns0:WasteTransferNote\" :",", {}","\"WasteStreamCodes\" :",", \"Dummy1\" : \"1\"","\"TrackingNumbers\" :",", \"Dummy2\" : \"2\"",", \"Dummy3\" : \"3\"}"};

               String[] replacedvalue={"","","\"WasteStreamCodes\" : [","]","“TrackingNumbers” : [","]",""};

              for(int i=0;i<originalvalue.length;i++){

               inputContent = inputContent.replaceAll(originalvalue[i], replacedvalue[i]); 

              }

               outputstream.write(inputContent.getBytes()); 

           } catch (Exception exception) { 

               getTrace().addDebugMessage(exception.getMessage()); 

               throw new StreamTransformationException(exception.toString()); 

           } 

       } 

   }

input mgs coming like below:

{"ns0:WasteTransferNote" : {   "field1": null,   "field2": "ec92a1e9-cef0-48aa-8800-a2e500ce8b1c",   "field3": null,   "Subnode": [   {      "field4": 80,      "field5":"Kilograms",      "field6": null,      "field7": "12345678-0003-0000-0000-000000000012",      "field8": null,      "field9": "DFF5JGJ3N5",      "WasteStreamCodes": "200301"

   },{}   ]}}

Can anyone please help me why that exception coming?

Thanks & Regards,

Maheswarareddy

[iaki_vila · Accepted solution]

Hi Maheswarareddy,

The symbol { is a reserved character for regex. You should escape it with \\{

Regards.

[maheswarareddykonda · Accepted solution]

Hi Inaki,

Thanks a lot very quick response..

i made changes as per your reply...then everything going currect

Thanks & Regards,

Maheswarareddy

[Former Member · Accepted solution]

May I know, what is

regex, means?

[iaki_vila · Accepted solution]

Hi Avinash,

regex means Regular Expression, you can use it in java to search patterns.

Regards.