@Nullable
public static <T> T cast(@NotNull Class<T> type, UnnamedConfigurable configurable) {
if (configurable instanceof ConfigurableWrapper) {
ConfigurableWrapper wrapper = (ConfigurableWrapper) configurable;
if (wrapper.myConfigurable == null) {
Class<?> configurableType = wrapper.getExtensionPoint().getConfigurableType();
if (configurableType != null) {
if (!type.isAssignableFrom(configurableType)) {
return null; // do not create configurable that cannot be cast to the specified type
}
} else if (type == Configurable.Assistant.class || type == OptionalConfigurable.class) {
return null; // do not create configurable from ConfigurableProvider which replaces
// OptionalConfigurable
}
}
configurable = wrapper.getConfigurable();
}
return type.isInstance(configurable) ? type.cast(configurable) : null;
}
@Override
protected Configurable prepare(Configurable key) {
long time = System.currentTimeMillis();
try {
ConfigurableWrapper.cast(
Configurable.class, key); // create wrapped configurable on a pooled thread
} catch (Exception unexpected) {
LOG.error("cannot prepare configurable", unexpected);
} finally {
warn(key, "prepare", time);
}
return key;
}