private void InitProvider()
{
do {
_provider = RotateProvider(_provider);
if (_provider == null) {
if (FailureHandler != null)
FailureHandler(this, null);
return;
}
if (_provider.IsAvailable())
break;
} while (true);
_provider.SuccessHandler += OnLoaded;
_provider.FailureHandler += OnFailure;
}
private IChapterProvider RotateProvider(IChapterProvider provider)
{
IChapterProvider newProvider = null;
if (provider == null) {
newProvider = new ProjectContentProvider(_chapterName);
}
else if (provider is ProjectContentProvider) {
newProvider = new IsolatedStorageProvider(_chapterName);
}
else if (provider is IsolatedStorageProvider) {
newProvider = new BlobStorageProvider(_chapterName);
}
return newProvider;
}