/// <summary>
/// Updates the given relation by adding it's changes to the current changeset.
/// </summary>
/// <param name="relation"></param>
public void RelationUpdate(Relation relation)
{
if (_current_changeset == null)
{
throw new InvalidOperationException("No open changeset found!");
}
if (!relation.Id.HasValue)
{
throw new ArgumentOutOfRangeException("Cannot update an object without an id!");
}
// build a new node.
relation xml_relation = relation.ConvertTo();
xml_relation.changeset = _current_changeset.id;
xml_relation.changesetSpecified = true;
// encapsulate into an osm object.
OsmSharp.Osm.Xml.v0_6.osm osm = new Osm.Xml.v0_6.osm();
osm.relation = new Osm.Xml.v0_6.relation[1];
osm.relation[0] = xml_relation;
// serialize the changeset.
XmlSerializer serializer = new XmlSerializer(typeof(OsmSharp.Osm.Xml.v0_6.osm));
MemoryStream mem_stream = new MemoryStream();
Stream stream = mem_stream;
serializer.Serialize(stream, osm);
stream.Flush();
mem_stream.Flush();
byte[] put_data = mem_stream.ToArray();
// do the api call.
this.DoApiCall(true, string.Format("api/0.6/relation/{0}", relation.Id.Value),
Method.PUT, put_data);
}
/// <summary>
/// Creates a new relation.
/// </summary>
/// <param name="relation"></param>
/// <returns></returns>
public Relation RelationCreate(Relation relation)
{
if (_current_changeset == null)
{
throw new InvalidOperationException("No open changeset found!");
}
// build a new node.
relation xml_relation = relation.ConvertTo();
xml_relation.changeset = _current_changeset.id;
xml_relation.changesetSpecified = true;
// encapsulate into an osm object.
OsmSharp.Osm.Xml.v0_6.osm osm = new Osm.Xml.v0_6.osm();
osm.relation = new Osm.Xml.v0_6.relation[1];
osm.relation[0] = xml_relation;
// serialize the changeset.
XmlSerializer serializer = new XmlSerializer(typeof(OsmSharp.Osm.Xml.v0_6.osm));
MemoryStream mem_stream = new MemoryStream();
Stream stream = mem_stream;
serializer.Serialize(stream, osm);
stream.Flush();
mem_stream.Flush();
byte[] put_data = mem_stream.ToArray();
// do the api call.
string response_string = this.DoApiCall(true, "api/0.6/relation/create",
Method.PUT, put_data);
// get the id-response.
long id;
if (!long.TryParse(response_string, out id))
{ // invalid response!
throw new APIException(string.Format("Invalid response when creating a new relation: {0}", response_string));
}
relation.Id = id;
return relation;
}
