public async Task <SearchInfo> AddOrUpdate(string key, Func <Task <string> > valueFactory)
{
if (string.IsNullOrWhiteSpace(key))
{
throw new ArgumentException("message", nameof(key));
}
if (valueFactory is null)
{
throw new ArgumentNullException(nameof(valueFactory));
}
var searchInfo = Get(key);
string jsonResult;
if (searchInfo is null)
{
jsonResult = await valueFactory();
searchInfo = new SearchInfo(key, jsonResult);
if (!string.IsNullOrWhiteSpace(jsonResult))
{
Add(searchInfo);
}
}
return(searchInfo);
}
public void Remove(SearchInfo searchResult)
{
if (searchResult is null)
{
throw new ArgumentNullException(nameof(searchResult));
}
_cache.Remove(searchResult);
}
public void Add(SearchInfo searchResult)
{
if (searchResult is null)
{
throw new ArgumentNullException(nameof(searchResult));
}
_cache.AddOrUpdate(searchResult, SearchInfo.DefaultComparer);
}