public static LinearFilterAnalyzer findLinearFilters(SIRStream str) { System.out.println("aal--In linear filter visitor");
public static LinearFilterAnalyzer findLinearFilters(SIRStream str, boolean debug) {  LinearPrinter.setOutput(debug); LinearPrinter.println("aal--In linear filter visitor");
    public static LinearFilterAnalyzer findLinearFilters(SIRStream str) {	System.out.println("aal--In linear filter visitor");	LinearFilterAnalyzer lfv = new LinearFilterAnalyzer();	IterFactory.createIter(str).accept(lfv);	return lfv;    }