public static Tuple <double, double, double, double> GetExtentFromGeoJson(FileInfo ogrInfoFileInfo, string geoJson, double totalMilliseconds)
{
using (var geoJsonFile = DisposableTempFile.MakeDisposableTempFileEndingIn(".json"))
{
File.WriteAllText(geoJsonFile.FileInfo.FullName, geoJson);
var gdalDataDirectory = new DirectoryInfo(Path.Combine(ogrInfoFileInfo.DirectoryName, "gdal-data"));
var commandLineArguments = BuildOgrInfoCommandLineArgumentsGetExtent(geoJsonFile.FileInfo, gdalDataDirectory);
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(ogrInfoFileInfo.DirectoryName, ogrInfoFileInfo.FullName, commandLineArguments, true, Convert.ToInt32(totalMilliseconds));
var lines = processUtilityResult.StdOut.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries).ToList();
// I believe this is happening irregularly - I see crashes below I can't readily reproduce. This is an attempt to narrow down the problem.
// (Is the problem that a simple GET request is pounding on the Ogr2Ogr command line .EXE, and that the .EXE then gets too busy/overwhelmed to process multiple requests?
// Just my first guess. -- SLG 9/30/2019)
Check.Ensure(lines.Any(), $"No lines found returning from exec of \"{ogrInfoFileInfo.Name}\" in processed GeoJson string \"{geoJson}\". Raw StdOut: \"{processUtilityResult.StdOut}\"");
if (lines.Any(x => x.Contains("Feature Count: 0")))
{
return(null);
}
// We see crash here: "Sequence contains no matching element" on lines.First(..)
var extentTokens = lines.First(x => x.StartsWith("Extent:")).Split(new[] { ' ', '(', ')', ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();
return(new Tuple <double, double, double, double>(double.Parse(extentTokens[1]), double.Parse(extentTokens[2]), double.Parse(extentTokens[4]), double.Parse(extentTokens[5])));
}
}
public static bool ConfirmAttributeExistsOnFeatureClass(FileInfo ogrInfoFileInfo, FileInfo gdbFileInfo, double totalMilliseconds, string featureClassName, string attributeName)
{
// ReSharper disable once AssignNullToNotNullAttribute
var gdalDataDirectory = new DirectoryInfo(Path.Combine(ogrInfoFileInfo.DirectoryName, "gdal-data"));
var commandLineArguments = BuildOgrInfoCommandLineArgumentsToConfirmAttributeExistsOnFeatureClass(gdbFileInfo, gdalDataDirectory, featureClassName);
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(ogrInfoFileInfo.DirectoryName, ogrInfoFileInfo.FullName, commandLineArguments, true, Convert.ToInt32(totalMilliseconds));
return(processUtilityResult.StdOut.Contains($"{attributeName}:", StringComparison.InvariantCultureIgnoreCase));
}
public static List <string> GetFeatureClassNamesFromFileGdb(FileInfo ogrInfoFileInfo, FileInfo gdbFileInfo, double totalMilliseconds)
{
// ReSharper disable once AssignNullToNotNullAttribute
var gdalDataDirectory = new DirectoryInfo(Path.Combine(ogrInfoFileInfo.DirectoryName, "gdal-data"));
var commandLineArguments = BuildOgrInfoCommandLineArgumentsToListFeatureClasses(gdbFileInfo, gdalDataDirectory);
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(ogrInfoFileInfo.DirectoryName, ogrInfoFileInfo.FullName, commandLineArguments, true, Convert.ToInt32(totalMilliseconds));
var featureClassesFromFileGdb = processUtilityResult.StdOut.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries).ToList();
return(featureClassesFromFileGdb.Select(x => x.Split(' ').Skip(1).First()).ToList());
}
// The FileGDB driver for Ogr2Ogr prints an empty line to standard error and returns a code even when successful, so we have to trap that case explicitly
// ReSharper disable once UnusedMethodReturnValue.Local
private ProcessUtilityResult ExecuteOgr2OgrCommandForFileGdbWrite(List <string> commandLineArguments)
{
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(_ogr2OgrExecutable.DirectoryName, _ogr2OgrExecutable.FullName, commandLineArguments, true, Convert.ToInt32(_totalMilliseconds));
if (processUtilityResult.ReturnCode != 0 && !(processUtilityResult.StdOutAndStdErr.Equals("[stdout] \r\n[stderr] \r\n") || processUtilityResult.StdOutAndStdErr.Equals("[stderr] \r\n[stdout] \r\n")))
{
var argumentsAsString = String.Join(" ", commandLineArguments.Select(ProcessUtility.EncodeArgumentForCommandLine).ToList());
var fullProcessAndArguments =
$"{ProcessUtility.EncodeArgumentForCommandLine(_ogr2OgrExecutable.FullName)} {argumentsAsString}";
var errorMessage =
$"Process \"{_ogr2OgrExecutable.Name}\" returned with exit code {processUtilityResult.ReturnCode}, expected exit code 0.\r\n\r\nStdErr and StdOut:\r\n{processUtilityResult.StdOutAndStdErr}\r\n\r\nProcess Command Line:\r\n{fullProcessAndArguments}\r\n\r\nProcess Working Directory: {_ogr2OgrExecutable.DirectoryName}";
throw new Ogr2OgrCommandLineException(errorMessage);
}
return(processUtilityResult);
}
public static ProcessUtilityResult ExecutePyqgisScript(string pathToPyqgisScript, string workingDirectory)
{
var commandLineArguments = new List <string>
{
"/q",
"/c",
NeptuneWebConfiguration.PathToPyqgisLauncher,
pathToPyqgisScript,
NeptuneWebConfiguration.DatabaseConnectionString
};
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(workingDirectory,
"cmd.exe", commandLineArguments, true, null);
return(processUtilityResult);
}
/// <summary>
///
/// </summary>
/// <param name="ogrInfoExecutableFileInfo">Path to the ogrinfo.exe executable</param>
/// <param name="kmlFileInfo"></param>
/// <param name="originalFilename">This is the original name of the file as it appeared on the users file system. It is provided just for error messaging purposes.</param>
/// <param name="totalMilliseconds"></param>
/// <returns></returns>
public static List <string> GetFeatureClassNamesFromFileKml(FileInfo ogrInfoExecutableFileInfo, FileInfo kmlFileInfo, string originalFilename, double totalMilliseconds)
{
// ReSharper disable once AssignNullToNotNullAttribute
var gdalDataDirectory = new DirectoryInfo(Path.Combine(ogrInfoExecutableFileInfo.DirectoryName, "gdal-data"));
var commandLineArguments = BuildOgrInfoCommandLineArgumentsToListFeatureClassesKml(kmlFileInfo, gdalDataDirectory);
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(ogrInfoExecutableFileInfo.DirectoryName, ogrInfoExecutableFileInfo.FullName, commandLineArguments, true, Convert.ToInt32(totalMilliseconds));
if (processUtilityResult.ReturnCode != 0)
{
throw new SitkaGeometryDisplayErrorException($"{ogrInfoExecutableFileInfo.FullName} unable to open KML file {kmlFileInfo.FullName} - original filename {originalFilename}.");
}
var featureClassesFromFileKml = processUtilityResult.StdOut.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries).ToList();
return(featureClassesFromFileKml.Select(x => x.Split(new[] { ' ' }, 2).Skip(1).First()).ToList());
}
public static Tuple <double, double, double, double> GetExtentFromGeoJson(FileInfo ogrInfoFileInfo, string geoJson, double totalMilliseconds)
{
using (var geoJsonFile = DisposableTempFile.MakeDisposableTempFileEndingIn(".json"))
{
File.WriteAllText(geoJsonFile.FileInfo.FullName, geoJson);
var gdalDataDirectory = new DirectoryInfo(Path.Combine(ogrInfoFileInfo.DirectoryName, "gdal-data"));
var commandLineArguments = BuildOgrInfoCommandLineArgumentsGetExtent(geoJsonFile.FileInfo, gdalDataDirectory);
var processUtilityResult = ProcessUtility.ShellAndWaitImpl(ogrInfoFileInfo.DirectoryName, ogrInfoFileInfo.FullName, commandLineArguments, true, Convert.ToInt32(totalMilliseconds));
var lines = processUtilityResult.StdOut.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries).ToList();
if (lines.Any(x => x.Contains("Feature Count: 0")))
{
return(null);
}
var extentTokens = lines.First(x => x.StartsWith("Extent:")).Split(new[] { ' ', '(', ')', ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();
return(new Tuple <double, double, double, double>(double.Parse(extentTokens[1]), double.Parse(extentTokens[2]), double.Parse(extentTokens[4]), double.Parse(extentTokens[5])));
}
}
