private XFormsContainingDocument createDocumentFromStore(
RequestParameters parameters, boolean isInitialState, boolean disableUpdates) {
final boolean isServerState = parameters.getEncodedClientStaticState() == null;
final XFormsState xformsState;
if (isServerState) {
// State must be found by UUID in the store
final ExternalContext externalContext = NetUtils.getExternalContext();
final XFormsStateStore stateStore = XFormsStateStoreFactory.instance(externalContext);
if (indentedLogger.isDebugEnabled())
indentedLogger.logDebug(
LOG_TYPE,
"Getting document state from store.",
"current cache size",
Integer.toString(XFormsDocumentCache.instance().getCurrentSize()),
"current store size",
Long.toString(stateStore.getCurrentSize()),
"max store size",
Long.toString(stateStore.getMaxSize()));
final ExternalContext.Session session =
externalContext.getRequest().getSession(XFormsStateManager.FORCE_SESSION_CREATION);
xformsState = stateStore.findState(session, parameters.getUUID(), isInitialState);
if (xformsState == null) {
// Oops, we couldn't find the state in the store
final String UNABLE_TO_RETRIEVE_XFORMS_STATE_MESSAGE =
"Unable to retrieve XForms engine state.";
final String PLEASE_RELOAD_PAGE_MESSAGE =
"Please reload the current page. Note that you will lose any unsaved changes.";
// Produce exception
final ExternalContext.Session currentSession =
externalContext.getRequest().getSession(false);
final String message;
if (currentSession == null || currentSession.isNew()) {
// This means that no session is currently existing, or a session exists but it is newly
// created
message = "Your session has expired. " + PLEASE_RELOAD_PAGE_MESSAGE;
} else {
// There is a session and it is still known by the client
message = UNABLE_TO_RETRIEVE_XFORMS_STATE_MESSAGE + " " + PLEASE_RELOAD_PAGE_MESSAGE;
}
indentedLogger.logError("", message);
throw new OXFException(message);
}
} else {
// State comes directly with request
xformsState =
new XFormsState(
scala.Option.<String>apply(null),
parameters.getEncodedClientStaticState(),
DynamicState.apply(parameters.getEncodedClientDynamicState()));
}
// Create document
final XFormsContainingDocument document =
new XFormsContainingDocument(xformsState, disableUpdates);
assert isServerState
? document.getStaticState().isServerStateHandling()
: document.getStaticState().isClientStateHandling();
return document;
}
