public string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
if (item.Links == null)
{
return("");
}
// retrieve all enclosure links
var links = item.Links.Where(l => l.RelationshipType == "enclosure");
// Enclosure availability control function
if (!parameters.AllKeys.Contains("disableEnclosureControl") && !parameters.AllKeys.Contains("allEnclosures"))
{
links = RemoveNonAvailableLinks(links);
}
string enclosure;
if (links.IsEmpty())
{
enclosure = "";
}
else if (parameters.AllKeys.Contains("allEnclosures"))
{
enclosure = string.Join("|", links.Select(l => l.Uri.ToString()));
}
else
{
enclosure = links.First().Uri.ToString();
}
return(enclosure);
}
public virtual string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string date = null;
if (date == null)
{
foreach (SyndicationElementExtension ext in item.ElementExtensions)
{
if (ext.OuterName == "date")
{
date = ext.GetObject <string>();
if (date.Contains("/"))
{
date = DateTime.Parse(date.Split('/')[1]).ToUniversalTime().ToString("O");
}
break;
}
if (ext.OuterName == "dtend" && ext.OuterNamespace == "http://www.w3.org/2002/12/cal/ical#")
{
date = DateTime.Parse(ext.GetObject <string>(), null, System.Globalization.DateTimeStyles.AssumeUniversal).ToUniversalTime().ToString("O");
break;
}
}
}
return(date);
}
public virtual string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string title = "";
if (item.Title != null)
{
title = item.Title.Text;
}
return(title);
}
public override string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string date = base.GetMetadata(item, specifier);
var start = Terradue.Metadata.EarthObservation.OpenSearch.Extensions.EarthObservationOpenSearchResultExtensions.FindStartDate(item);
if (start != DateTime.MinValue)
{
date = start.ToUniversalTime().ToString("O");
}
return(date);
}
public override string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string ident = base.GetMetadata(item, specifier);
if (ident == null)
{
var identifier = Terradue.Metadata.EarthObservation.OpenSearch.Extensions.EarthObservationOpenSearchResultExtensions.FindIdentifier(item);
if (identifier != null)
{
ident = identifier;
}
}
return(ident);
}
public override string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string geom = base.GetMetadata(item, specifier);
if (geom == null)
{
var geometry = Terradue.Metadata.EarthObservation.OpenSearch.Extensions.EarthObservationOpenSearchResultExtensions.FindGeometry(item);
if (geometry != null)
{
geom = geometry.ToWkt();
}
}
return(geom);
}
public virtual string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string ident = null;
if (ident == null)
{
foreach (SyndicationElementExtension ext in item.ElementExtensions)
{
if (ext.OuterName == "identifier")
{
ident = ext.GetObject <string>();
break;
}
}
}
return(ident);
}
public string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
var link = item.Links.FirstOrDefault(l => {
if (l.RelationshipType == specifier)
{
bool ret = true;
return(ret);
}
return(false);
});
if (link != null)
{
return(link.Uri.ToString());
}
return("");
}
public virtual string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
string wkt = null;
if (item is Feature)
{
wkt = WktExtensions.ToWkt((Feature)item);
}
if (!string.IsNullOrEmpty(wkt))
{
return(wkt);
}
var geom = item.FindGeometry();
if (geom == null)
{
foreach (SyndicationElementExtension ext in item.ElementExtensions.ToArray())
{
if (ext.OuterNamespace == "http://www.georss.org/georss/10")
{
geom = Terradue.GeoJson.GeoRss10.GeoRss10Extensions.ToGeometry(Terradue.GeoJson.GeoRss10.GeoRss10Helper.Deserialize(ext.GetReader()));
}
if (ext.OuterNamespace == "http://www.georss.org/georss")
{
geom = Terradue.GeoJson.GeoRss.GeoRssExtensions.ToGeometry(Terradue.GeoJson.GeoRss.GeoRssHelper.Deserialize(ext.GetReader()));
}
}
}
if (geom != null)
{
return(geom.ToWkt());
}
return(null);
}
public override string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
return(item.Id);
}
public virtual string GetMetadata(Terradue.OpenSearch.Result.IOpenSearchResultItem item, string specifier)
{
return(item.LastUpdatedTime.ToUniversalTime().ToString("O"));
}