private static RootType GetRootType(string baseName, Assembly root)
{
return(ROOT_CACHE.GetOrAdd(baseName, (key) =>
{
string rootLocale = (baseName.IndexOf('.') == -1) ? "root" : "";
try
{
ICUResourceBundle.GetBundleInstance(baseName, rootLocale, root, true);
return RootType.ICU;
}
catch (MissingManifestResourceException)
{
try
{
ResourceBundleWrapper.GetBundleInstance(baseName, rootLocale, root, true);
return RootType.DotNet;
}
catch (MissingManifestResourceException)
{
//throw away the exception
return RootType.Missing;
}
}
}));
}
/// <summary>
/// <icu/> Loads a new resource bundle for the given base name, locale and assembly.
/// Optionally will disable loading of fallback bundles.
/// </summary>
/// <param name="baseName">String containing the name of the data package.
/// If null the default ICU package name is used.</param>
/// <param name="localeName">The locale for which a resource bundle is desired.</param>
/// <param name="root">The class object from which to load the resource bundle.</param>
/// <param name="disableFallback">Disables loading of fallback lookup chain.</param>
/// <exception cref="MissingManifestResourceException">If no resource bundle for the specified base name can be found.</exception>
/// <returns>A resource bundle for the given base name and locale.</returns>
/// <stable>ICU 3.0</stable>
protected static UResourceBundle InstantiateBundle(string baseName, string localeName,
Assembly root, bool disableFallback)
{
RootType rootType = GetRootType(baseName, root);
switch (rootType)
{
case RootType.ICU:
return(ICUResourceBundle.GetBundleInstance(baseName, localeName, root, disableFallback));
case RootType.DotNet:
return(ResourceBundleWrapper.GetBundleInstance(baseName, localeName, root,
disableFallback));
case RootType.Missing:
default:
UResourceBundle b;
try
{
b = ICUResourceBundle.GetBundleInstance(baseName, localeName, root,
disableFallback);
SetRootType(baseName, RootType.ICU);
}
catch (MissingManifestResourceException)
{
b = ResourceBundleWrapper.GetBundleInstance(baseName, localeName, root,
disableFallback);
SetRootType(baseName, RootType.DotNet);
}
return(b);
}
}
private static RootType GetRootType(string baseName, Assembly root)
{
RootType rootType;
if (!ROOT_CACHE.TryGetValue(baseName, out rootType))
{
string rootLocale = (baseName.IndexOf('.') == -1) ? "root" : "";
try
{
ICUResourceBundle.GetBundleInstance(baseName, rootLocale, root, true);
rootType = RootType.ICU;
}
catch (MissingManifestResourceException ex)
{
try
{
ResourceBundleWrapper.GetBundleInstance(baseName, rootLocale, root, true);
rootType = RootType.JAVA;
}
catch (MissingManifestResourceException e)
{
//throw away the exception
rootType = RootType.MISSING;
}
}
ROOT_CACHE[baseName] = rootType;
}
return(rootType);
}