Java Programming

Hi freinds plz help me on this i am not getting a solution for this
converting inputstream to outputstream



public ReportGenerator(Connection con,String input,OutputStream out){
try{
System.out.println("inside ReportGenerator()");
InputStream bais = new ByteArrayInputStream(input.getBytes());
JasperCompileManager.compileReportToStream (bais,out);
System.out.println("Afeter the compile");

bais = new ByteArrayInputStream(out.toString().getBytes());
//here its giving an error saying cant load Inputstream

JasperFillManager.fillReportToStream (bais,out,new HashMap(),con);


bais = new ByteArrayInputStream(out.toString().getBytes());
JasperExportManager.exportReportToPdfStream(bais,out);
}catch(Exception e){
e.printStackTrace();
}

so i tried using PipedStream for the same thing this is the code using piped streams

public ReportGenerator(Connection con,String input,OutputStream out){
try{

byte arrayOfByte[] = input.getBytes();
System.out.println("Storing the input into a byte array");

PipedInputStream pins = new PipedInputStream();
PipedOutputStream pouts = new PipedOutputStream(pins);

System.out.println("Storing the PipedInputStream into PipedOutputStream");
System.out.println("length === "+arrayOfByte.length);
//its giveing me the output till here and after this it is getting hanged so pls someone suggest a solution for this problem or send me the code.

pouts.write(arrayOfByte,0, arrayOfByte.length);
pins.connect(pouts);


JasperCompileManager.compileReportToStream(bias,out);

JasperFillManager.fillReportToStream(pins,out,new HashMap(),con);

JasperExportManager.exportReportToPdfStream (pins,out);
}catch(Exception e){
e.printStackTrace();
}

Thanks for your help