Question

I have an method which writes data to an OutputStream but needs to return the contents of the OutputStream as an InputStream

public InputStream getInputStreamOfData(type param) {
    // ..... data 
    OutputStreamWriter writer = new OutputStreamWriter();
    writer.write(data);
    // convert writer object to an InputStream 
}

I came across some libraries to do this such as IOUtils and other thread based methods. Is there a simple way to achieve this using standard Java library ? I want to return the contents in the writer as an InputStream to be consumed by the calling method.

Thanks!

Answer 1

Write to a ByteArrayOutputStream, then get the byte array, and return a ByteArrayInputStream from this byte array.