AtomItem CreateItemFromLink(string key, Uri url, bool withOrbits)
{
string identifier = key.Replace(".EOF", "");
Match match = Regex.Match(identifier,
@"^(?'mission'\w{3})_OPER_AUX_(?'type'\w{6})_(?'system'\w{4})_(?'proddate'\w{15})_V(?'startdate'\w{15})_(?'stopdate'\w{15})$");
if (!match.Success)
{
return(null);
}
AtomItem item = new AtomItem(identifier, string.Format("{0} {1} {2} {3}", match.Groups["mission"].Value,
match.Groups["type"].Value,
match.Groups["startdate"].Value,
match.Groups["stopdate"].Value),
url,
identifier,
DateTimeOffset.ParseExact(match.Groups["proddate"].Value, "yyyyMMddTHHmmss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal).ToUniversalTime());
DateTime start = DateTime.ParseExact(match.Groups["startdate"].Value, "yyyyMMddTHHmmss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal).ToUniversalTime();
DateTime stop = DateTime.ParseExact(match.Groups["stopdate"].Value, "yyyyMMddTHHmmss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal).ToUniversalTime();
item.Identifier = identifier;
item.PublishDate = DateTimeOffset.ParseExact(match.Groups["proddate"].Value, "yyyyMMddTHHmmss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal).ToUniversalTime();
item.Links.Add(SyndicationLink.CreateMediaEnclosureLink(url, "application/xml", 0));
item.ElementExtensions.Add("polygon", "http://www.georss.org/georss", "-90 -180 -90 180 90 180 90 -180 -90 -180");
item.ElementExtensions.Add("date", "http://purl.org/dc/elements/1.1/", string.Format("{0}/{1}", start.ToString("O"), stop.ToString("O")));
Terradue.ServiceModel.Ogc.Eop21.EarthObservationType eo = OrbToEo(identifier, match.Groups["mission"].Value, match.Groups["type"].Value, start, stop, item.PublishDate);
if (eo != null)
{
log.DebugFormat("EOP extension created from {0}", url);
item.ElementExtensions.Add(eo.CreateReader());
}
if (withOrbits)
{
var request = HttpWebRequest.Create(url);
using (var response = request.GetResponse())
{
Terradue.OpenSearch.Sentinel.Data.Earth_Explorer_File eefile = (Terradue.OpenSearch.Sentinel.Data.Earth_Explorer_File)eeser.Deserialize(response.GetResponseStream());
item.ElementExtensions.Add(GenerateOrbitsExtension(eefile));
}
}
return(item);
}
public static Terradue.Metadata.EarthObservation.Model.orbitListType GetS1OrbitsFromEE(Terradue.OpenSearch.Sentinel.Data.Earth_Explorer_File file)
{
Terradue.Metadata.EarthObservation.Model.orbitListType orbits = new Terradue.Metadata.EarthObservation.Model.orbitListType();
orbits.orbit = file.Data_Block.List_of_OSVs.OSV.
Select <Terradue.OpenSearch.Sentinel.Data.Earth_Explorer_FileData_BlockList_of_OSVsOSV, Terradue.Metadata.EarthObservation.Model.orbitType>(o =>
{
Terradue.Metadata.EarthObservation.Model.orbitType orbit = new Terradue.Metadata.EarthObservation.Model.orbitType();
orbit.time = DateTime.SpecifyKind(DateTime.Parse(o.UTC.Replace("UTC=", "")), DateTimeKind.Utc);
orbit.frame = Terradue.Metadata.EarthObservation.Model.referenceFrameType.EarthFixed;
orbit.absoluteOrbit = int.Parse(o.Absolute_Orbit.Replace("+", ""));
orbit.position = new double[] { o.X.Value, o.Y.Value, o.Z.Value };
orbit.velocity = new double[] { o.VX.Value, o.VY.Value, o.VZ.Value };
return(orbit);
}).ToArray();
return(orbits);
}
public static SyndicationElementExtension GenerateOrbitsExtension(Terradue.OpenSearch.Sentinel.Data.Earth_Explorer_File file)
{
SyndicationElementExtension extension = new SyndicationElementExtension(GetS1OrbitsFromEE(file), Terradue.Metadata.EarthObservation.Model.orbitListType.OrbitsSerializer);
return(extension);
}
