public IEsiFragment Parse(IReadOnlyDictionary <string, string> attributes, string body)
{
if (attributes == null)
{
throw new ArgumentNullException(nameof(attributes));
}
if (body == null)
{
throw new ArgumentNullException(nameof(body));
}
var srcUrl = VariableStringParser.Parse(attributes["src"]);
var srcFragment = new EsiIncludeFragment(srcUrl);
IEsiFragment includeFragment;
if (attributes.TryGetValue("alt", out var altUrl))
{
var altFragment = new EsiIncludeFragment(VariableStringParser.Parse(altUrl));
includeFragment = new EsiTryFragment(srcFragment, altFragment);
}
else
{
includeFragment = srcFragment;
}
return(ShouldContinueOnError(attributes)
? new EsiTryFragment(includeFragment, new EsiIgnoreFragment())
: includeFragment);
}
public async Task <IEnumerable <string> > Execute(
EsiIncludeFragment fragment,
EsiExecutionContext executionContext)
{
if (fragment == null)
{
throw new ArgumentNullException(nameof(fragment));
}
var rawUrl = string.Concat(VariableStringResolver.Resolve(executionContext, fragment.Url));
var uri = _uriParser(rawUrl);
var remoteFragment = await _cache.GetOrAdd(
uri,
executionContext,
() => RequestAndParse(uri, executionContext));
return(await _fragmentExecutor.Execute(remoteFragment, executionContext));
}