public static async Task <Osm> Fetch(string scopeName, Func <Feature, bool> filter = null)
{
TagTree.Reload();
Log = Log ?? Static.LogFactory.CreateLogger(typeof(References));
Log.LogInformation("Fetching Reference material from Maine E911 API");
// Fetch GIS
var stateGis = await FileSerializer.ReadJsonCacheOrSource(
scopeName + "/ReferenceRaw.GeoJson", () => GeoJsonAPISource.FetchMunicipality(scopeName));
var gisFeatures = stateGis.Features.Where(f => filter == null || filter(f)).ToArray();
if (IsFeatureSchemaOld(gisFeatures[0]))
{
gisFeatures = gisFeatures.Select(UpdateFeatureSchema).ToArray();
}
Log.LogInformation("Validating Reference material");
Validate(gisFeatures);
// Fetch the list of objectIDs with known errors to omit.
var blacklist = Static.Municipalities[scopeName].BlackList.ToHashSet();
Log.LogInformation("Translating Reference material");
// Convert
var nodes = gisFeatures
.Where(f => !blacklist.Contains((long)f.Properties[KEYS.OBJECTID]))
.Select(Convert)
.Where(n => n.Tags.ContainsKey("addr:housenumber"))
.ToArray();
if (!nodes.Any())
{
return(null);
}
nodes = HandleStacks(nodes);
HandleBlackTags(nodes, Static.Municipalities[scopeName].BlackTags);
foreach (var node in nodes.Where(n => n.Tags.ContainsKey("addr:unit")))
{
var newUnit = RemoveTokens(ReplaceTokens(node.Tags["addr:unit"], UNITs), Tags.UnitOmmisionable);
if (newUnit == "")
{
node.Tags.RemoveKey("addr:unit");
}
else
{
node.Tags["addr:unit"] = newUnit;
}
}
var filtered = new Osm()
{
Nodes = nodes, Version = .6, Bounds = nodes.AsBounds()
};
return(filtered);
}