/**
* Handles the return from a multi-value lookup, processing any select line values and invoking
* the configured view helper service to create the lines for those values in the model
* collection.
*
* <p>There are two supported strategies for returning the selected lines. One, if the lookup view
* and the caller are within the same application container, Springs input flash map is used. If
* however, the lookup view is outside the caller, then just a standard request parameter is used.
*
* @param form form instance containing the model data
* @param request http request object being handled
*/
protected void processMultiValueReturn(final UifFormBase form, HttpServletRequest request) {
final String lookupCollectionId = request.getParameter(UifParameters.LOOKUP_COLLECTION_ID);
final String lookupCollectionName = request.getParameter(UifParameters.LOOKUP_COLLECTION_NAME);
if (StringUtils.isBlank(lookupCollectionName)) {
throw new RuntimeException(
"Lookup collection name is required for processing multi-value lookup results");
}
final String multiValueReturnFields =
request.getParameter(UifParameters.MULIT_VALUE_RETURN_FILEDS);
String selectedLineValuesParam = request.getParameter(UifParameters.SELECTED_LINE_VALUES);
String flashMapSelectedLineValues = "";
if (RequestContextUtils.getInputFlashMap(request) != null) {
flashMapSelectedLineValues =
(String)
RequestContextUtils.getInputFlashMap(request).get(UifParameters.SELECTED_LINE_VALUES);
}
if (!StringUtils.isBlank(flashMapSelectedLineValues)) {
selectedLineValuesParam = flashMapSelectedLineValues;
}
final String selectedLineValues = selectedLineValuesParam;
Runnable runnable =
new Runnable() {
@Override
public void run() {
// invoked view helper to populate the collection from lookup results
ViewLifecycle.getHelper()
.processMultipleValueLookupResults(
form,
lookupCollectionId,
lookupCollectionName,
multiValueReturnFields,
selectedLineValues);
}
};
ViewLifecycle.encapsulateLifecycle(
form.getView(), form, form.getViewPostMetadata(), null, request, runnable);
}
@RequestMapping(value = "/mainpage", method = RequestMethod.GET)
public String goMainPage(HttpServletRequest request) {
Map<String, ?> map = RequestContextUtils.getInputFlashMap(request);
if (map != null) {
logger.info("redirect!");
} else {
logger.info("update!");
}
return "main";
}
