+}
+
+std::string ExtensionItem::ToHuman(const Extensible* container, void* item) const
+{
+ // Try to use the network form by default.
+ std::string ret = ToNetwork(container, item);
+
+ // If there's no network form then fall back to the internal form.
+ if (ret.empty())
+ ret = ToInternal(container, item);
+
+ return ret;
+}
+
+std::string ExtensionItem::ToInternal(const Extensible* container, void* item) const
+{
+ return ToNetwork(container, item);
+}
+
+std::string ExtensionItem::ToNetwork(const Extensible* container, void* item) const
+{
+ return std::string();
+}
+
+std::string ExtensionItem::serialize(SerializeFormat format, const Extensible* container, void* item) const
+{
+ // Wrap the deprecated API with the new API.
+ switch (format)
+ {
+ case FORMAT_USER:
+ return ToHuman(container, item);
+ case FORMAT_INTERNAL:
+ case FORMAT_PERSIST:
+ return ToInternal(container, item);
+ case FORMAT_NETWORK:
+ return ToNetwork(container, item);
+ }