empty file, java mapping issue

[milan_10]

Hello,

does anyone have an ide how to create java mapping to create empty file on FTP?

Why this code always send NUL character = 1byte and not 0 byte as needed?

public void execute(InputStream in, OutputStream out) throws StreamTransformationException {

...

out = null;

...

}

[Former Member]

Hi

We can handle it in adapter itself , if the message is empty then we can handle it.

Regards

Chilla

[milan_10]

But what does it mean that message is empty.? I think it means that the payload's size is 0. I thought that I could get it via java mapping and setting OutputStream = null. Then you could handle it in adapter, and set write empty file.

But even I set outputstream to null I get nul char in that stream and it has byte, so it's not empty any more!!! And I also have the requirement that the file have to be 0 byte.

[Former Member]

Hi,

in your mapping after creating the file. it the sender side elements are not existed then no data will be stored ..

try to handle like this

Regards

Chilla

[milan_10]

I'm not sure if I understant what you mean.

I of course first do the maping, then you send it to receiver.

[VijayKonam]

HI,

You might want to fill the OutputStream with an empty string "" rather than with a null. Not sure if this could be a solution, but you can definetly try this out.

Vijay

[milan_10]

Hi,

I also try that of course, and the result was the same...

Thanks Milan

[prateek]

try 1 thing...

run ur code for some standalone file.

create a file at ur local harddisk and check out its size..

i had tried creating such a file using the code below....

it is creating a 0 byte file successfully.

public class TestCode {

public static void main(String ags[]){

try{

TransformerFactory tf = TransformerFactory.newInstance();

Transformer transform = tf.newTransformer();

FileOutputStream out;

out = new FileOutputStream("c:
OutTestCode.xml");

transform.transform(null, new StreamResult(out));

} catch (FileNotFoundException e1) {

e1.printStackTrace();

} catch (TransformerConfigurationException e) {

e.printStackTrace();

} catch (TransformerException e) {

e.printStackTrace();

}

}

}

[Former Member]

Milan

You were trying to set the object "outputputstream" to null and not the value of the file

REgards

krishna

[milan_10]

Hi,

yes all I need is to create empty file in file adpater. So I thought that when I set outputstrem to null, or to "".getBytes(), outputstreem will be empty, therefore file adapter will create empty 0byte file(SP19 file adpater feature, write empty files/ignore).

And as I said I always get NUL character, 1byte file. Bad bad bad...

Thanks.

[milan_10]

Hi,

I think you didn't send it through XI. I did and the result is the same, file with size 1byte, nul character inside!

Thanks,

Milan