private async Task <ActionResult> GetTile(string serviceName, GetTile getTile)
{
ActionResult result = null;
ExceptionReport exception = null;
int statusCode = 200;
#region Validate parameters
if (string.IsNullOrWhiteSpace(serviceName))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "serviceName", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string serviceType = getTile.service;
if (string.IsNullOrWhiteSpace(serviceType))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "service", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (serviceType.ToLower() != "wmts")
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", "version", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string version = getTile.version;
if (string.IsNullOrWhiteSpace(version))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "version", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (version != "1.0.0")
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", "version", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string layerName = getTile.Layer;
if (string.IsNullOrWhiteSpace(layerName))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "layer", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string style = getTile.Style;
if (string.IsNullOrWhiteSpace(style))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "style", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string format = getTile.Format;
if (string.IsNullOrWhiteSpace(format))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "format", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string tileMatrixSet = getTile.TileMatrixSet;
if (string.IsNullOrWhiteSpace(tileMatrixSet))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "tileMatrixSet", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string tileMatrix = getTile.TileMatrix;
if (string.IsNullOrWhiteSpace(tileMatrix))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "tileMatrix", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
ServiceRecord serviceRecord = await GetServiceRecord(serviceName, version);
if (serviceRecord == null)
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (!System.IO.File.Exists(serviceRecord.Path))
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
LayerRecord layerRecord = await GetLayerRecord(serviceRecord, layerName);
if (layerRecord == null)
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (!System.IO.File.Exists(layerRecord.Path))
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
#endregion
GetCapabilities getCapabilities = new GetCapabilities()
{
AcceptVersions = new string[] { version }
};
IWmtsService wmts1Service = GetWmts1Service(version);
Capabilities capabilities = wmts1Service.GetCapabilities(serviceRecord.Path, getCapabilities);
if (capabilities == null)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
LayerType layerType = capabilities.Contents?.DatasetDescriptionSummary?.FirstOrDefault(x => x.Identifier?.Value == layerName && x is LayerType) as LayerType;
if (layerType == null)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
if (!layerType.Format.Contains(format))
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", "format", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (layerType.TileMatrixSetLink == null || layerType.TileMatrixSetLink.Length == 0)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
string layerTileMatrixSetStr = layerType.TileMatrixSetLink[0].TileMatrixSet;
if (layerTileMatrixSetStr != null)
{
TileMatrixSet layerTileMatrixSet = capabilities.Contents.TileMatrixSet?.FirstOrDefault(x => x.Identifier?.Value == layerTileMatrixSetStr);
if (layerTileMatrixSet != null)
{
TileMatrix layerTileMatrix = layerTileMatrixSet.TileMatrix?.FirstOrDefault(x => x.Identifier.Value == getTile.TileMatrix);
if (layerTileMatrix != null)
{
bool ret = layerTileMatrix.TopLeftCorner.ToPosition(out double left, out double top);
if (!ret)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
BoundingBoxType boundingBoxType = layerType.BoundingBox?.Length > 0 ? layerType.BoundingBox[0] : layerType.WGS84BoundingBox?.Length > 0 ? layerType.WGS84BoundingBox[0] : null;
if (boundingBoxType == null)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
bool ret1 = boundingBoxType.LowerCorner.ToPosition(out double xMin, out double yMin);
bool ret2 = boundingBoxType.UpperCorner.ToPosition(out double xMax, out double yMax);
if (!ret1 || !ret2)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
double tileXMin = 0, tileYMin = 0, tileXMax = 0, tileYMax = 0;
int tileWidth = Convert.ToInt32(layerTileMatrix.TileWidth);
int tileHeight = Convert.ToInt32(layerTileMatrix.TileHeight);
tileXMin = left + getTile.TileCol * tileWidth * layerTileMatrix.ScaleDenominator;
tileXMax = left + (getTile.TileCol + 1) * tileWidth * layerTileMatrix.ScaleDenominator;
tileYMax = top - getTile.TileRow * tileHeight * layerTileMatrix.ScaleDenominator;
tileYMin = top - (getTile.TileRow + 1) * tileHeight * layerTileMatrix.ScaleDenominator;
if (tileXMax <= xMin || tileXMin >= xMax || tileYMax <= yMin || tileYMin >= yMax)
{
exception = ExceptionReportHelper.GetExceptionReport("TileOutOfRange", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
}
}
}
byte[] tileBuffer = wmts1Service.GetTile(capabilities, layerRecord.Path, getTile);
result = new FileContentResult(tileBuffer, getTile.Format);
goto Success;
Exception:
string content = XmlHelper.XmlSerialize(exception, Encoding, null);
result = new ContentResult()
{
StatusCode = statusCode,
Content = content
};
Success:
return(result);
}
private async Task <ActionResult> GetTile(string serviceName, GetTile getTile)
{
ActionResult result = null;
ExceptionReport exception = null;
int statusCode = 200;
#region Validate parameters
if (string.IsNullOrWhiteSpace(serviceName))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "serviceName", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string serviceType = getTile.service;
if (string.IsNullOrWhiteSpace(serviceType))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "service", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (serviceType.ToLower() != "wmts")
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", "version", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string version = getTile.version;
if (string.IsNullOrWhiteSpace(version))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "version", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (version != "1.0.0")
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", "version", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string layerName = getTile.Layer;
if (string.IsNullOrWhiteSpace(layerName))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "layer", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string style = getTile.Style;
if (string.IsNullOrWhiteSpace(style))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "style", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string format = getTile.Format;
if (string.IsNullOrWhiteSpace(format))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "format", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string tileMatrixSet = getTile.TileMatrixSet;
if (string.IsNullOrWhiteSpace(tileMatrixSet))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "tileMatrixSet", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
string tileMatrix = getTile.TileMatrix;
if (string.IsNullOrWhiteSpace(tileMatrix))
{
exception = ExceptionReportHelper.GetExceptionReport("MissingParameterValue", "tileMatrix", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
ServiceRecord serviceRecord = await GetServiceRecord(serviceName, version);
if (serviceRecord == null)
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (!System.IO.File.Exists(serviceRecord.Path))
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
LayerRecord layerRecord = await GetLayerRecord(serviceRecord, layerName);
if (layerRecord == null)
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
#endregion
GetCapabilities getCapabilities = new GetCapabilities(version);
IWmtsService wmts1Service = GetWmts1Service(version);
Capabilities capabilities = wmts1Service.GetCapabilities(serviceRecord.Path, getCapabilities);
if (capabilities == null)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
LayerType layerType = capabilities.GetLayerType(layerRecord.Name);
if (layerType == null)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
if (!layerType.Format.Contains(format))
{
exception = ExceptionReportHelper.GetExceptionReport("InvalidParameterValue", "format", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
if (layerType.TileMatrixSetLink == null || layerType.TileMatrixSetLink.Length == 0)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
string layerTileMatrixSetStr = layerType.TileMatrixSetLink[0].TileMatrixSet;
if (layerTileMatrixSetStr != null)
{
TileMatrixSet layerTileMatrixSet = capabilities.Contents.TileMatrixSet?.FirstOrDefault(x => x.Identifier?.Value == layerTileMatrixSetStr);
if (layerTileMatrixSet != null)
{
TileMatrix layerTileMatrix = layerTileMatrixSet.TileMatrix?.FirstOrDefault(x => x.Identifier.Value == getTile.TileMatrix);
if (layerTileMatrix != null)
{
bool ret = layerTileMatrix.TopLeftCorner.ToPosition(out double left, out double top);
if (!ret)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
BoundingBoxType boundingBoxType = layerType.BoundingBox?.Length > 0 ? layerType.BoundingBox[0] : layerType.WGS84BoundingBox?.Length > 0 ? layerType.WGS84BoundingBox[0] : null;
if (boundingBoxType == null)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
bool ret0 = boundingBoxType.LowerCorner.ToPosition(out double xMin, out double yMin);
bool ret1 = boundingBoxType.UpperCorner.ToPosition(out double xMax, out double yMax);
if (!ret0 || !ret1)
{
exception = ExceptionReportHelper.GetExceptionReport("NoApplicableCode", exceptionText: "Internal server error");
statusCode = 500;
goto Exception;
}
bool isDegree = layerTileMatrixSet.GetIsDegreeByLocalDb();
layerTileMatrix.GetTileIndex(isDegree, xMin, yMax, out int startCol, out int startRow);
int matrixWidth = Convert.ToInt32(layerTileMatrix.MatrixWidth);
int matrixHeight = Convert.ToInt32(layerTileMatrix.MatrixHeight);
if (getTile.TileCol < startCol || getTile.TileCol >= startCol + matrixWidth || getTile.TileRow < startRow || getTile.TileRow >= startRow + matrixHeight)
{
exception = ExceptionReportHelper.GetExceptionReport("TileOutOfRange", exceptionText: "Bad request");
statusCode = 400;
goto Exception;
}
}
}
}
try
{
byte[] tileBuffer = wmts1Service.GetTile(capabilities, layerRecord.Path, getTile);
result = new FileContentResult(tileBuffer, getTile.Format);
}
catch (Exception e)
{
Debug.WriteLine($"获取瓦片{getTile.TileMatrix}_{getTile.TileCol}_{getTile.TileRow}失败:{e.Message}");
}
goto Success;
Exception:
string content = XmlHelper.XmlSerialize(exception, Encoding, null);
result = new ContentResult()
{
StatusCode = statusCode,
Content = content
};
Success:
return(result);
}