public void invoke(HttpServletRequest req, HttpServletResponse resp) throws IOException {
// L.trace("begin invoke");
QueryParams qp = QueryParams.create(req);
// L.trace("end query params create");
try {
Class[] pts = method.getParameterTypes();
Object[] ps = new Object[pts.length];
for (int i = 0; i < pts.length; i++) {
Class pt = pts[i];
if (pt.isAssignableFrom(QueryParams.class)) {
ps[i] = qp;
} else if (pt.isAssignableFrom(HttpServletRequest.class)) {
ps[i] = req;
} else if (pt.isAssignableFrom(HttpServletResponse.class)) {
ps[i] = resp;
}
}
Throwable err = null;
Object r = null;
try {
method.setAccessible(true);
// L.trace("begin invoke method");
r = method.invoke(obj, ps);
// L.trace("end invoke method");
} catch (InvocationTargetException e) {
err = e.getTargetException();
} catch (Throwable t) {
err = t;
}
if (err != null) {
writeError(err, qp, req, resp, printErrorDetails);
} else {
if (r instanceof NoResponse) {
// do nothing
} else if (r instanceof DirectResponse) {
DirectResponse dr = (DirectResponse) r;
output(qp, req, resp, dr.content, 200, dr.contentType);
} else {
String json = JsonUtils.toJson(wrapSingleton(r), true);
// output(resp, json, 200, "application/json");
output(qp, req, resp, json, 200, "text/plain");
}
}
} finally {
if (qp != null) qp.close();
}
// L.trace("end invoke");
}
