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fix(perf) don't create session if it is not required #30322

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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ public Result intercept(final HttpServletRequest request, final HttpServletRespo
}

if (!UtilMethods.isSet(currentVariantName)) {
final HttpSession session = request.getSession();
final HttpSession session = request.getSession(false);

if (session != null) {
final Object attribute = session.getAttribute(VariantAPI.VARIANT_KEY);
Expand Down Expand Up @@ -98,4 +98,4 @@ private static Optional<String> getVariantValueFromReferer(final String refererV

return Optional.empty();
}
}
}
Original file line number Diff line number Diff line change
Expand Up @@ -66,19 +66,21 @@ public String currentVariantId() {
}
}

setSessionAttribute(request, currentVariantName);
setSessionAttributeIfNeeded(request, currentVariantName);
return currentVariantName;
}

private static void setSessionAttribute(final HttpServletRequest request,
private static void setSessionAttributeIfNeeded(final HttpServletRequest request,
final String currentVariantName) {

final HttpSession session = request.getSession(true);
boolean buildSessionIfNeeded = !"DEFAULT".equals(currentVariantName);

final HttpSession session = request.getSession(buildSessionIfNeeded);

if (!UtilMethods.isSet(session)) {
return;
}

final Object attribute = session.getAttribute(VariantAPI.VARIANT_KEY);

if (mustOverwrite(attribute, currentVariantName)) {
Expand Down