Passing binary information in a synchronous scenario

[former_member195202]

Hi All,

I am working on a synchronous scenario where I am sending an HTTP request to third party and I am getting back the response. My requirement is that I need to pass through this response as it is from XI, no transformation is required.

This happens twice:

1) In first case, I receive the html data which is ok

2) in second case, I receive PDF data which is getting corrupted and I cant view that pdf data after my message mapping.

I am  using below code in response mapping (java mapping)....

public void transform(TransformationInput in, TransformationOutput out) throws StreamTransformationException {

    try {

    String sourceString = "";String line ="";

    String append ="";

    InputStream ins = in.getInputPayload().getInputStream();

    BufferedReader br = new BufferedReader(new InputStreamReader(ins, "UTF-8"));

while ((line = br.readLine()) != null){

     sourceString = sourceString + line;

}

    br.close();

    out.getOutputPayload().getOutputStream().write(sourceString.getBytes("UTF-8"));

}

    catch (Exception e) {

           throw new StreamTransformationException(e.getMessage());

  }

}

Problem is that this code is working for case 1) when I receive HTML data but in case 2) the data gets corrupted.I think I would need to pass the response as binary data (as it is) for both the cases.

Do not forget that it is a synchronous interface so I do not have the option to bypass the IR development since I am making some transformation in the request mapping.

Can anyone suggest.

Thanks,

Ravi.

[former_member181985 · Accepted solution]

Actually You don't need a mapping for response

[former_member195202 · Accepted solution]

Hi Praveen,

I was doubting that I can remove the response mapping but I did not try that .. Thanks to the laziness

Yes, I can remove the mapping from the response and it still works so that I am receiving the same data and I can view the pdf data also.

Many thanks Praveen..

Ravi.

[former_member181985 · Accepted solution]

Cheers Ravi

[former_member181985]

Hello Ravi,

You are reading inputstream in character mode. i.e., BufferedReader

You should read the content in byte mode

Try with this code:

byte[] buffer = new byte[1024];  
public void transform(TransformationInput in, TransformationOutput out) throws StreamTransformationException {

    try { 
  InputStream is = (InputStream) in.getInputPayload().getInputStream();  
  OutputStream os = (OutputStream) out.getOutputPayload().getOutputStream();
  while ((int len = is.read(buffer)) > 0)  
  {  
  os..write(buffer, 0, len);                                                     
  } catch (Exception e) {

           throw new StreamTransformationException(e.getMessage()); 
  }
}

Regards,

Praveen Gujjeti

Message was edited by: PRAVEEN GUJJETI