protected void doOptions()

in geronimo-servlet_2.5_spec/src/main/java/javax/servlet/http/HttpServlet.java [531:583]

47 lines of code
20 McCabe index (conditional complexity)


    protected void doOptions(HttpServletRequest req, HttpServletResponse resp)
	throws ServletException, IOException
    {
	Method[] methods = getAllDeclaredMethods(this.getClass());
	
	boolean ALLOW_GET = false;
	boolean ALLOW_HEAD = false;
	boolean ALLOW_POST = false;
	boolean ALLOW_PUT = false;
	boolean ALLOW_DELETE = false;
	boolean ALLOW_TRACE = true;
	boolean ALLOW_OPTIONS = true;
	
	for (int i=0; i<methods.length; i++) {
	    Method m = methods[i];
	    
	    if (m.getName().equals("doGet")) {
		ALLOW_GET = true;
		ALLOW_HEAD = true;
	    }
	    if (m.getName().equals("doPost")) 
		ALLOW_POST = true;
	    if (m.getName().equals("doPut"))
		ALLOW_PUT = true;
	    if (m.getName().equals("doDelete"))
		ALLOW_DELETE = true;
	    
	}
	
	String allow = null;
	if (ALLOW_GET)
	    if (allow==null) allow=METHOD_GET;
	if (ALLOW_HEAD)
	    if (allow==null) allow=METHOD_HEAD;
	    else allow += ", " + METHOD_HEAD;
	if (ALLOW_POST)
	    if (allow==null) allow=METHOD_POST;
	    else allow += ", " + METHOD_POST;
	if (ALLOW_PUT)
	    if (allow==null) allow=METHOD_PUT;
	    else allow += ", " + METHOD_PUT;
	if (ALLOW_DELETE)
	    if (allow==null) allow=METHOD_DELETE;
	    else allow += ", " + METHOD_DELETE;
	if (ALLOW_TRACE)
	    if (allow==null) allow=METHOD_TRACE;
	    else allow += ", " + METHOD_TRACE;
	if (ALLOW_OPTIONS)
	    if (allow==null) allow=METHOD_OPTIONS;
	    else allow += ", " + METHOD_OPTIONS;
	
	resp.setHeader("Allow", allow);
    }