Question

I have a java.io.Reader as the return type of my method. But i have Object type of an instance which i get from Database. So how can I convert this to Reader type and return?

I have the following code where getByteArrayObject() return a byte array. and the same i need to return, but the return type is Reader which i cant change.

 public Reader getMediaReader(String arg0) {
    // TODO Auto-generated method stub
    Object obj  = getByteArrayObject();
    System.out.println("HELLO I AM DETCTED....... in getMediaReader");
    return null;
    }

need help
thanks.

Answer 1

Based on your edited question …

Assuming that the byte array returned by getByteArrayObject() is text encoded in some known character set / encoding, then the following should suffice:

 public Reader getMediaReader(String arg0) throws IOException {
     byte[] bytes = getByteArrayObject();
     return new InputStreamReader(
                new ByteArrayInputStream(bytes), ENCODING_NAME);
}

where ENCODING_NAME is the name of the encoding.

EDIT – I’d hazard a guess that the arg0 parameter is supposed to contain the encoding name.