/// <summary>
/// Element Full
/// <see href="https://wiki.openstreetmap.org/wiki/API_v0.6#Full:_GET_.2Fapi.2F0.6.2F.5Bway.7Crelation.5D.2F.23id.2Ffull">
/// GET /api/0.6/[way|relation]/#id/full</see>.
/// </summary>
private async Task <TCompleteOsmGeo> GetCompleteElement <TCompleteOsmGeo>(long id) where TCompleteOsmGeo : ICompleteOsmGeo, new()
{
var type = new TCompleteOsmGeo().Type.ToString().ToLower();
var address = BaseAddress + $"0.6/{type}/{id}/full";
var content = await Get(address);
var stream = await content.ReadAsStreamAsync();
var streamSource = new XmlOsmStreamSource(stream);
var completeSource = new OsmSimpleCompleteStreamSource(streamSource);
var element = completeSource.OfType <TCompleteOsmGeo>().FirstOrDefault();
return(element);
}
public Task <List <CompleteWay> > GetAllHighways(Stream osmFileStream)
{
return(Task.Run(() =>
{
_logger.LogInformation($"Extracting highways from OSM stream.");
var source = new PBFOsmStreamSource(osmFileStream);
var completeSource = new OsmSimpleCompleteStreamSource(source);
var higways = completeSource
.OfType <CompleteWay>()
.Where(o => o.Tags.ContainsKey("highway"))
.ToList();
_logger.LogInformation("Finished getting highways. " + higways.Count);
return higways;
}));
}
public Task <Dictionary <string, List <ICompleteOsmGeo> > > GetElementsWithName(Stream osmFileStream)
{
return(Task.Run(() =>
{
_logger.LogInformation($"Extracting elements with name from OSM stream.");
var source = new PBFOsmStreamSource(osmFileStream);
var completeSource = new OsmSimpleCompleteStreamSource(source);
var namesDictionary = completeSource
.Where(o => string.IsNullOrWhiteSpace(GetName(o)) == false)
.GroupBy(GetName)
.ToDictionary(g => g.Key, g => g.ToList());
_logger.LogInformation("Finished grouping data by name. " + namesDictionary.Values.Count);
return namesDictionary;
}));
}
private async Task <TCompleteOsmGeo> GetCompleteElement <TCompleteOsmGeo>(string id, string type) where TCompleteOsmGeo : class, ICompleteOsmGeo
{
using (var client = new HttpClient())
{
var address = _completeElementAddress.Replace(":id", id).Replace(":type", type);
var response = await client.GetAsync(address);
if (response.StatusCode != HttpStatusCode.OK)
{
return(null);
}
var streamSource = new XmlOsmStreamSource(await response.Content.ReadAsStreamAsync());
var completeSource = new OsmSimpleCompleteStreamSource(streamSource);
return(completeSource.OfType <TCompleteOsmGeo>().FirstOrDefault());
}
}
public Task <List <string> > GetImagesUrls(Stream osmFileStream)
{
return(Task.Run(() =>
{
_logger.LogInformation("Starting extracting urls from OSM stream.");
osmFileStream.Seek(0, SeekOrigin.Begin);
var source = new PBFOsmStreamSource(osmFileStream);
var completeSource = new OsmSimpleCompleteStreamSource(source);
var urls = completeSource.Where(element => element.Tags.Any(t => t.Key.StartsWith(FeatureAttributes.IMAGE_URL)))
.SelectMany(element => element.Tags.Where(t => t.Key.StartsWith(FeatureAttributes.IMAGE_URL)))
.Select(tag => tag.Value)
.ToList();
_logger.LogInformation("Finished extracting urls from OSM stream. " + urls.Count);
return urls;
}));
}
public Task <List <Node> > GetPointsWithNoNameByTags(Stream osmFileStream, List <KeyValuePair <string, string> > tags)
{
return(Task.Run(() =>
{
_logger.LogInformation("Extracting nodes by tags from OSM stream.");
var source = new PBFOsmStreamSource(osmFileStream);
var completeSource = new OsmSimpleCompleteStreamSource(source);
var nodes = completeSource
.OfType <Node>()
.Where(node =>
node.Tags.GetName() == string.Empty &&
node.Tags.HasAny(tags))
.ToList();
_logger.LogInformation("Finished getting nodes by tags. " + nodes.Count);
return nodes;
}));
}
public static void Main(string[] args)
{
// enable logging.
OsmSharp.Logging.Logger.LogAction = (o, level, message, parameters) =>
{
Console.WriteLine(string.Format("[{0}-{3}] {1} - {2}", o, level, message, DateTime.Now.ToString()));
};
// download and extract test-data if not already there.
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Downloading PBF...");
Download.DownloadAll();
// create a source.
var source = new OsmSharp.Streams.PBFOsmStreamSource(File.OpenRead(Download.Local));
// loop over all objects and count them.
int nodes = 0, ways = 0, relations = 0;
var testAction = new Action(() =>
{
foreach (var osmGeo in source)
{
if (osmGeo.Type == OsmGeoType.Node)
{
nodes++;
}
if (osmGeo.Type == OsmGeoType.Way)
{
ways++;
}
if (osmGeo.Type == OsmGeoType.Relation)
{
relations++;
}
}
});
testAction.TestPerf("Test counting objects.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Counted {0} nodes, {1} ways and {2} relations.",
nodes, ways, relations);
// loop over all objects and count them ignoring nodes.
nodes = 0;
ways = 0;
relations = 0;
source.Reset();
testAction = new Action(() =>
{
foreach (var osmGeo in source.EnumerateAndIgore(true, false, false))
{
if (osmGeo.Type == OsmGeoType.Node)
{
nodes++;
}
if (osmGeo.Type == OsmGeoType.Way)
{
ways++;
}
if (osmGeo.Type == OsmGeoType.Relation)
{
relations++;
}
}
});
testAction.TestPerf("Test counting objects without nodes.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Counted {0} nodes, {1} ways and {2} relations.",
nodes, ways, relations);
// loop over all objects and count them ignoring nodes.
nodes = 0;
ways = 0;
relations = 0;
source.Reset();
testAction = new Action(() =>
{
foreach (var osmGeo in source.EnumerateAndIgore(true, true, false))
{
if (osmGeo.Type == OsmGeoType.Node)
{
nodes++;
}
if (osmGeo.Type == OsmGeoType.Way)
{
ways++;
}
if (osmGeo.Type == OsmGeoType.Relation)
{
relations++;
}
}
});
testAction.TestPerf("Test counting objects without nodes and ways.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Counted {0} nodes, {1} ways and {2} relations.",
nodes, ways, relations);
// write a compressed PBF.
source.Reset();
testAction = new Action(() =>
{
using (var output = File.Open("output.osm.pbf", FileMode.Create))
{
var target = new OsmSharp.Streams.PBFOsmStreamTarget(output, true);
target.RegisterSource(source);
target.Pull();
}
});
testAction.TestPerf("Test writing a PBF.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Written PBF.");
// test converting to complete.
source.Reset();
testAction = new Action(() =>
{
var filteredQuery = from osmGeo in source where
osmGeo.Type == OsmGeoType.Way &&
osmGeo.Tags.ContainsKey("highway") &&
!osmGeo.Tags.Contains("highway", "cycleway") &&
!osmGeo.Tags.Contains("highway", "bus_stop") &&
!osmGeo.Tags.Contains("highway", "street_lamp") &&
!osmGeo.Tags.Contains("highway", "path") &&
!osmGeo.Tags.Contains("highway", "turning_cycle") &&
!osmGeo.Tags.Contains("highway", "traffic_signals") &&
!osmGeo.Tags.Contains("highway", "stops") &&
!osmGeo.Tags.Contains("highway", "pedestrian") &&
!osmGeo.Tags.Contains("highway", "footway") ||
osmGeo.Type == OsmGeoType.Node
select osmGeo;
var collectionComplete = filteredQuery.ToComplete();
var completeWays = collectionComplete.Where(x => x.Type == OsmGeoType.Way).ToList();
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Found {0} complete ways.",
completeWays.Count);
});
testAction.TestPerf("Test converting to complete ways.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Converted completed ways.");
// regression test for indexing names.
source.Reset();
testAction = new Action(() =>
{
var completeSource = new OsmSimpleCompleteStreamSource(source);
var namesDictionary = completeSource
.Where(o => string.IsNullOrWhiteSpace(o.Tags.GetValue("name")) == false)
.GroupBy(o => o.Tags.GetValue("name"))
.ToDictionary(g => g.Key, g => g.ToList());
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Indexed {0} names.",
namesDictionary.Count);
});
testAction.TestPerf("Test indexing names.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Indexed names.");
OsmSharp.Logging.Logger.Log("Program", TraceEventType.Information, "Testing finished.");
#if DEBUG
Console.ReadLine();
#endif
}