/**
* PRECONDITION: argument <code>response</code> is non-null and has a method called <code>
* getContentType</code> that takes no arguments and returns a String, with no side-effects.
*
* <p>This method allows us to get the contentType in both the servlet and portlet cases, without
* introducing a compile-time dependency on the portlet api.
*
* @param response the current response
* @return the content type of the response
*/
public static String getContentTypeFromResponse(Object response) {
String result = null;
if (null != response) {
try {
Method method =
ReflectionUtils.lookupMethod(
response.getClass(), "getContentType", RIConstants.EMPTY_CLASS_ARGS);
if (null != method) {
Object obj = method.invoke(response, RIConstants.EMPTY_METH_ARGS);
if (null != obj) {
result = obj.toString();
}
}
} catch (Exception e) {
throw new FacesException(e);
}
}
return result;
}
