public static void FindItemsByTag(ref RequestHandler request, OSMGeometryType typeToFind, bool pathIsContents = false)
{
var dispatchForType = GetDispatchForType(typeToFind);
bool onlyBuildings = false;
if (typeToFind == OSMGeometryType.Building)
{
onlyBuildings = true;
}
GetBounds(ref request, pathIsContents);
for (var i = 0; i < request.XmlPaths.Count; i++)
{
var xmlPath = request.XmlPaths[i];
if (pathIsContents)
{
using (XmlReader reader = XmlReader.Create(new StringReader(xmlPath)))
{
dispatchForType(reader, ref request, i, onlyBuildings); // Only used in testing
}
}
else
{
using (XmlReader reader = XmlReader.Create(xmlPath))
{
dispatchForType(reader, ref request, i);
}
}
}
}
public static List <int> GetLineLengthsForFiles(List <string> xmlFilePaths, OSMGeometryType typeToFind, bool readPathAsContents = false)
{
if (readPathAsContents)
{
return(Enumerable.Repeat(1000, xmlFilePaths.Count).ToList()); // With tests we pass strings, not paths, so just return arbitrary values
}
var count = new List <int>();
foreach (var filePath in xmlFilePaths)
{
try
{
int linesForFile = File.ReadLines(filePath).Count();
if (typeToFind == OSMGeometryType.Node) // Assume approximately half of the amount of a file is nodes
{
linesForFile = Convert.ToInt32(linesForFile * 0.55, System.Globalization.CultureInfo.InvariantCulture);
}
count.Add(linesForFile);
}
catch { // Usually when file path is unreadable/reachable
count.Add(-1);
}
}
return(count);
}
// Retur n correct parser for each geometry type
private static DispatchDelegate GetDispatchForType(OSMGeometryType typeToFind)
{
DispatchDelegate dispatchForType;
if (typeToFind == OSMGeometryType.Node)
{
dispatchForType = FindNodesInXML;
}
else if (typeToFind == OSMGeometryType.Way || typeToFind == OSMGeometryType.Building)
{
dispatchForType = FindWaysInXML;
}
else
{
dispatchForType = null; // Necessary to prevent below paths thinking variable not set
}
return(dispatchForType);
}
public RequestHandler(List <string> providedXMLs, ParseRequest requestedMetaData, OSMGeometryType requestedType,
Action <string, double> reportProgress, string workerId)
{
this.XmlPaths = providedXMLs;
this.RequestedMetaData = requestedMetaData;
// Setup data holders
this.FoundItemIds = new List <string>();
this.FoundData = new Dictionary <OSMTag, List <FoundItem> >();
foreach (OSMTag metaData in requestedMetaData.Requests)
{
this.FoundData[metaData] = new List <FoundItem>();
}
// Setup reporting infrastructure
this.WorkerId = workerId;
this.ReportProgress = reportProgress;
if (providedXMLs[0].Length < 1000) // Don't calculate line lengths when working with tests (e.g. passed by contents not path)
{
this.LinesPerFile = ProgressReporting.GetLineLengthsForFiles(providedXMLs, requestedType);
}
}
protected static RequestHandler fetchResultsViaXMLReader(List <string> xml, ParseRequest features, OSMGeometryType typeOfFeature)
{
var results = new RequestHandler(xml, features, OSMGeometryType.Node, reportProgress, "Test");
ParseViaXMLReader.FindItemsByTag(ref results, typeOfFeature, true);
return(results);
}
