public async Task <StorageSearchResult> Resolve(HttpResponseMessage response)
{
if (response == null)
{
throw new ArgumentNullException("response");
}
if (!response.IsSuccessStatusCode)
{
return(null);
}
if (response.Content.Headers.ContentLength == null || response.Content.Headers.ContentLength < 1)
{
return(null);
}
StorageSearchResult result = null;
var contentStream = await response.Content.ReadAsStreamAsync();
this.ResolveCore(contentStream, (bucketName, pattern, marker) =>
{
result = new StorageSearchResult(bucketName, pattern, marker, this);
return(result);
});
return(result);
}
public string Reload(StorageSearchResult owner, HttpResponseMessage response)
{
if (owner == null)
{
throw new ArgumentNullException("owner");
}
if (response == null)
{
throw new ArgumentNullException("response");
}
if (!response.IsSuccessStatusCode)
{
return(null);
}
if (response.Content.Headers.ContentLength == null || response.Content.Headers.ContentLength < 1)
{
return(null);
}
return(this.ResolveCore(response.Content.ReadAsStreamAsync().Result, (_, __, ___) => owner));
}
private string ResolveCore(Stream stream, Func <string, string, string, StorageSearchResult> thunk)
{
if (stream == null)
{
return(null);
}
var settings = new XmlReaderSettings()
{
IgnoreComments = true,
IgnoreProcessingInstructions = true,
IgnoreWhitespace = true,
};
StorageSearchResult owner = null;
string name = null, pattern = null, marker = null;
using (var reader = XmlReader.Create(stream, settings))
{
if (reader.MoveToContent() != XmlNodeType.Element)
{
return(null);
}
while (reader.Read())
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
switch (reader.LocalName)
{
case "Name":
name = Utility.Xml.ReadContentAsString(reader);
break;
case "Prefix":
pattern = Utility.Xml.ReadContentAsString(reader);
break;
case "NextMarker":
marker = Utility.Xml.ReadContentAsString(reader);
break;
case "Contents":
var dictionary = this.ResolveContent(reader);
if (dictionary != null && dictionary.Count > 0)
{
if (owner == null)
{
owner = thunk(name, pattern, marker);
}
owner.Append(dictionary["Key"],
Zongsoft.Common.Convert.ConvertValue <long>(dictionary["Size"]),
Zongsoft.Common.Convert.ConvertValue <DateTimeOffset>(dictionary["LastModified"]));
}
break;
case "CommonPrefixes":
var prefix = this.ResolveCommonPrefix(reader);
if (!string.IsNullOrWhiteSpace(prefix))
{
if (owner == null)
{
owner = thunk(name, pattern, marker);
}
owner.Append(prefix, 0, DateTimeOffset.MinValue);
}
break;
}
}
}
return(marker);
}
