private boolean handleHelperStart() {
Logger.log.info("Handling helper start in view: " + viewParameters.viewID);
View view = new View();
List producersList = viewResolver.getProducers(viewParameters.viewID);
if (producersList.size() != 1) {
throw new IllegalArgumentException(
"There is not exactly one view producer for the view: " + viewParameters.viewID);
}
ViewComponentProducer vp = (ViewComponentProducer) producersList.get(0);
statePreservationManager.scopeRestore();
vp.fillComponents(view.viewroot, viewParameters, null);
statePreservationManager.scopePreserve();
UIOutput helperId = (UIOutput) view.viewroot.getComponent(HelperViewParameters.HELPER_ID);
UICommand helperBinding =
(UICommand) view.viewroot.getComponent(HelperViewParameters.POST_HELPER_BINDING);
tsh.putTokenState(
TOKEN_STATE_PREFIX + viewParameters.viewID + HelperViewParameters.HELPER_ID,
helperId.getValue());
if (helperBinding != null) {
tsh.putTokenState(
TOKEN_STATE_PREFIX + viewParameters.viewID + HelperViewParameters.POST_HELPER_BINDING,
helperBinding.methodbinding);
// Support for a ParameterList on the UICommand
if (helperBinding.parameters != null) {
tsh.putTokenState(
TOKEN_STATE_PREFIX + viewParameters.viewID + POST_HELPER_BINDING_PARAMLIST,
helperBinding.parameters);
}
}
// We need to save these ViewParameters for ActionResultInterceptors
tsh.putTokenState(
TOKEN_STATE_PREFIX + viewParameters.viewID + POST_HELPER_ARI2_VIEWPARAMS, viewParameters);
// Hack to know if we're in the helper
tsh.putTokenState(IN_HELPER_INDICATOR, IN_HELPER_INDICATOR);
String helperToolPath = bup.getBaseURL() + viewParameters.viewID + IN_HELPER_PATH;
tsh.putTokenState(
helperId.getValue() + Tool.HELPER_DONE_URL,
bup.getBaseURL() + viewParameters.viewID + HELPER_FINISHED_PATH);
try {
response.sendRedirect(helperToolPath);
} catch (IOException e) {
throw UniversalRuntimeException.accumulate(
e, "IOException when trying to redirect to helper tool");
}
return true;
}
private boolean handleHelperDone() {
Logger.log.info("Done handling helper in view: " + viewParameters.viewID);
// Removing hack
tsh.clearTokenState(IN_HELPER_INDICATOR);
ELReference elref =
(ELReference)
tsh.getTokenState(
TOKEN_STATE_PREFIX
+ viewParameters.viewID
+ HelperViewParameters.POST_HELPER_BINDING);
ParameterList paramlist =
(ParameterList)
tsh.getTokenState(
TOKEN_STATE_PREFIX + viewParameters.viewID + POST_HELPER_BINDING_PARAMLIST);
statePreservationManager.scopeRestore();
if (paramlist != null) {
for (int i = 0; i < paramlist.size(); i++) {
UIParameter param = (UIParameter) paramlist.get(i);
if (param instanceof UIELBinding) {
bma.setBeanValue(
((UIELBinding) param).valuebinding.value,
beanLocator,
((UIELBinding) param).rvalue,
null,
false);
}
}
}
String methodBinding = elref == null ? null : elref.value;
Object beanReturn = null;
if (methodBinding != null) {
ShellInfo shells = bma.fetchShells(methodBinding, beanLocator, true);
beanReturn = bma.invokeBeanMethod(shells, null);
}
ViewParameters originParams =
(ViewParameters)
tsh.getTokenState(
TOKEN_STATE_PREFIX + viewParameters.viewID + POST_HELPER_ARI2_VIEWPARAMS);
ARIResult ariresult = ari.interpretActionResult(viewParameters, beanReturn);
ariprocessor.interceptActionResult(ariresult, originParams, ariresult);
String urlToRedirectTo = ViewParamUtil.getAnyFullURL(ariresult.resultingView, vsh);
try {
response.sendRedirect(urlToRedirectTo);
} catch (IOException e) {
throw UniversalRuntimeException.accumulate(e, "Error redirecting to url: " + urlToRedirectTo);
}
return true;
}