How to add attachment using JAVA Mapping (SAP PO)

Hi,

I was having a requirement to pick a PDF file from a file server, send it as attachment and PDF file name as field to the target server.

As a solution I created a JAVA code and used it as JAVA mapping in PI. I hope this code will help PI consultants if they have similar kind of requirement.

/*

* Created on May 14, 2015

*

* To change the template for this generated file go to

* Window>Preferences>Java>Code Generation>Code and Comments

*/

package attach;

/**

* @author ashutosh upadhyay

*

* To change the template for this generated type comment go to

* Window>Preferences>Java>Code Generation>Code and Comments

*/

import java.io.InputStream;

import java.io.OutputStream;

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

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

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

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

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

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

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

public class AddAttachment extends AbstractTransformation{

  private static final DynamicConfigurationKey KEY_FILENAME = DynamicConfigurationKey.create(“https://sap.com/xi/XI/System/File“,”FileName”);

  public void transform(TransformationInput transformationInput, TransformationOutput transformationOutput) {

  //System.out.println(“A”);

  // access dynamic configuration

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

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

  DynamicConfiguration conf = transformationInput.getDynamicConfiguration();

  String fileName = “”;

   fileName = conf.get(KEY_FILENAME);

  //System.out.println(“C”+fileName);

  // set file name

  conf.put(KEY_FILENAME, fileName);

  try {

  // a) Populate XML for XIPAYLOAD

  String fresult= “”;

  // creating the xml

  fresult=””;

  fresult = fresult.concat(“

  fresult = fresult.concat(“

  fresult = fresult.concat(fileName);

  fresult = fresult.concat(“”);

  fresult = fresult.concat(“”);

  outputstream.write(fresult.getBytes(“UTF-8”));

// Write attachment

  OutputAttachments outputAttachments = transformationOutput.getOutputAttachments();

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

  inputstream.read(b);

  Attachment newAttachment = outputAttachments.create(fileName,”application/pdf”, b);

  outputAttachments.setAttachment(newAttachment);

  }

  catch (Exception e) {

  getTrace().addDebugMessage(e.getMessage());

  }

  }

}

Output: