/// <inheritdoc/>
public override String ToString()
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append('<').Append(_uri).Append('>')
.Append(' ').Append(_attributes.Title);
if (_attributes.Contains(LinkFormat.ResourceType))
{
sb.Append("\n\t").Append(LinkFormat.ResourceType)
.Append(":\t").Append(_attributes.GetResourceTypes());
}
if (_attributes.Contains(LinkFormat.InterfaceDescription))
{
sb.Append("\n\t").Append(LinkFormat.InterfaceDescription)
.Append(":\t").Append(_attributes.GetInterfaceDescriptions());
}
if (_attributes.Contains(LinkFormat.ContentType))
{
sb.Append("\n\t").Append(LinkFormat.ContentType)
.Append(":\t").Append(_attributes.GetContentTypes());
}
if (_attributes.Contains(LinkFormat.MaxSizeEstimate))
{
sb.Append("\n\t").Append(LinkFormat.MaxSizeEstimate)
.Append(":\t").Append(_attributes.MaximumSizeEstimate);
}
if (_attributes.Observable)
{
sb.Append("\n\t").Append(LinkFormat.Observable);
}
return(sb.ToString());
}
private static bool Matches(IResource resource, List <string> query)
{
if (resource == null)
{
return(false);
}
if (query == null)
{
return(true);
}
using (IEnumerator <string> ie = query.GetEnumerator()) {
if (!ie.MoveNext())
{
return(true);
}
ResourceAttributes attributes = resource.Attributes;
string path = resource.Path + resource.Name;
do
{
string s = ie.Current;
int delim = s.IndexOf('=');
if (delim == -1)
{
// flag attribute
if (attributes.Contains(s))
{
return(true);
}
}
else
{
string attrName = s.Substring(0, delim);
string expected = s.Substring(delim + 1);
if (attrName.Equals(LinkFormat.Link))
{
if (expected.EndsWith("*"))
{
return(path.StartsWith(expected.Substring(0, expected.Length - 1)));
}
else
{
return(path.Equals(expected));
}
}
else if (attributes.Contains(attrName))
{
// lookup attribute value
foreach (string value in attributes.GetValues(attrName))
{
string actual = value;
// get prefix length according to "*"
int prefixLength = expected.IndexOf('*');
if (prefixLength >= 0 && prefixLength < actual.Length)
{
// reduce to prefixes
expected = expected.Substring(0, prefixLength);
actual = actual.Substring(0, prefixLength);
}
// handle case like rt=[Type1 Type2]
if (actual.IndexOf(' ') > -1)
{
foreach (string part in actual.Split(' '))
{
if (part.Equals(expected))
{
return(true);
}
}
}
if (expected.Equals(actual))
{
return(true);
}
}
}
}
} while (ie.MoveNext());
}
return(false);
}
