System.out.println("Making: "+content);
    private FilterContent getFilterContent(UnflatFilter f)     {	FilterContent content;		if(f.filter instanceof SIRFileReader)	    content=new FileInputContent(f);	else if(f.filter instanceof SIRFileWriter)	    content=new FileOutputContent(f);	else	    content=new FilterContent(f);	System.out.println("Making: "+content);	return content;    }