private static string GetRouteAsStoredFileCore(PropertyLocation source, PropertyLocation destination)
{
int width = 800;
int height = 800;
// https://developers.google.com/maps/documentation/directions/?hl=de
string originText = source.ToString();
string destinationText = destination.ToString();
StringBuilder sbInitialRequest = new StringBuilder();
sbInitialRequest.Append("http://maps.google.com/maps/api/directions/xml?");
sbInitialRequest.AppendFormat("origin={0}", HttpUtility.UrlEncode(originText));
sbInitialRequest.AppendFormat("&destination={0}", HttpUtility.UrlEncode(destinationText));
sbInitialRequest.Append("&sensor=false");
WebRequest wreqInitial = WebRequest.Create(sbInitialRequest.ToString());
XDocument docResponse = null;
using (WebResponse wresInitial = wreqInitial.GetResponse())
{
using (Stream stream = wresInitial.GetResponseStream())
{
docResponse = XDocument.Load(stream);
}
string status = docResponse.Root.Element("status").Value;
if (status != "OK")
{
Logger.Instance.LogFormat(LogType.Error, typeof(RoutePlanHelper), Properties.Resources.MapsRequestFailed, status);
return(null);
}
}
XElement overviewE = docResponse.Root.Element("route").Element("overview_polyline").Element("points");
StringBuilder sbContinuationRequest = new StringBuilder();
sbContinuationRequest.Append("http://maps.google.com/maps/api/staticmap?");
sbContinuationRequest.AppendFormat("size={0}x{1}", width, height);
sbContinuationRequest.AppendFormat("&sensor=false&path=weight:3|color:red|enc:{0}", overviewE.Value);
WebRequest wr1 = WebRequest.Create(sbContinuationRequest.ToString());
using (WebResponse res1 = wr1.GetResponse())
{
using (Image image = Image.FromStream(res1.GetResponseStream()))
{
using (FileStream tempFile = File.OpenWrite(Path.GetTempFileName()))
{
image.Save(tempFile, ImageFormat.Png);
return(tempFile.Name);
}
}
}
}
GeocoderLocation IGeoCoder.GeoCode(PropertyLocation address)
{
string queryAdress = string.Format(((IGeoCoder)this).UrlPattern, ((IGeoCoder)this).ApiKey, HttpUtility.UrlEncode(address.ToString()));
WebRequest request = WebRequest.Create(queryAdress);
using (WebResponse response = request.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
XDocument document = XDocument.Load(new StreamReader(stream));
XElement longitudeElement = document.Descendants("lng").FirstOrDefault();
XElement latitudeElement = document.Descendants("lat").FirstOrDefault();
if (longitudeElement != null && latitudeElement != null)
{
return(new GeocoderLocation
{
Longitude = Double.Parse(longitudeElement.Value, CultureInfo.InvariantCulture),
Latitude = Double.Parse(latitudeElement.Value, CultureInfo.InvariantCulture)
});
}
}
}
return(null);
}
private static string GetRouteAsStoredFileCore(PropertyLocation source, PropertyLocation destination)
{
int width = 800;
int height = 800;
// https://developers.google.com/maps/documentation/directions/?hl=de
string originText = source.ToString();
string destinationText = destination.ToString();
// Create initial request
StringBuilder sbInitialRequest = new StringBuilder();
sbInitialRequest.Append("http://maps.google.com/maps/api/directions/xml?");
sbInitialRequest.AppendFormat("origin={0}", originText);
sbInitialRequest.AppendFormat("&destination={0}", destinationText);
sbInitialRequest.Append("&sensor=false");
WebRequest wreqInitial = WebRequest.Create(sbInitialRequest.ToString());
XDocument docResponse = null;
using (WebResponse wresInitial = wreqInitial.GetResponse())
{
docResponse = XDocument.Load(wresInitial.GetResponseStream());
// Load the response XML
string status = docResponse.Root.Element("status").Value;
switch (status)
{
// TODO: Handle the errors!
case "NOT_FOUND":
case "ZERO_RESULTS":
Logger.Instance.LogFormat(LogType.Warning, typeof(RoutePlanHelper), "The maps-request failed with status '{0}'. This is an indication that the location could not be retrieved. Sorry, but there's no workaround.", status);
return(null);
case "OVER_QUERY_LIMIT":
Logger.Instance.LogFormat(LogType.Error, typeof(RoutePlanHelper), "The maps-request failed with status 'OVER_QUERY_LIMIT'. This indicates too many queries within a short timeframe.");
return(null);
case "MAX_WAYPOINTS_EXCEEDED":
case "INVALID_REQUEST":
case "REQUEST_DENIED":
case "UNKNOWN_ERROR":
default:
Logger.Instance.LogFormat(LogType.Error, typeof(RoutePlanHelper), "The maps-request failed with status '{0}'. Please contact the developers!", status);
return(null);
case "OK":
// Everything ok.
break;
}
}
// Get the path data
XElement overviewE = docResponse.Root.Element("route").Element("overview_polyline").Element("points");
StringBuilder sbContinuationRequest = new StringBuilder();
sbContinuationRequest.Append("http://maps.google.com/maps/api/staticmap?");
sbContinuationRequest.AppendFormat("size={0}x{1}", width, height);
// TODO: Maybe allow configuring the thickness and color, especially for b/w-printers?
sbContinuationRequest.AppendFormat("&sensor=false&path=weight:3|color:red|enc:{0}", overviewE.Value);
WebRequest wr1 = WebRequest.Create(sbContinuationRequest.ToString());
using (WebResponse res1 = wr1.GetResponse())
{
using (Image image = Image.FromStream(res1.GetResponseStream()))
{
using (FileStream tempFile = File.OpenWrite(Path.GetTempFileName()))
{
image.Save(tempFile, ImageFormat.Png);
return(tempFile.Name);
}
}
}
}
GeocoderLocation IGeoCoder.Geocode(PropertyLocation address)
{
string queryAddress = string.Format(((IGeoCoder)this).UrlPattern, HttpUtility.UrlEncode(address.ToString()));
if (!string.IsNullOrWhiteSpace(address.ZipCode))
{
queryAddress = string.Format("{0}&components=postal_code:{1}|country:DE", queryAddress, address.ZipCode);
}
WebRequest request = WebRequest.Create(queryAddress);
using (WebResponse response = request.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
XDocument document = XDocument.Load(stream);
XElement longitudeElement = document.Descendants("lng").FirstOrDefault();
XElement latitudeElement = document.Descendants("lat").FirstOrDefault();
if (longitudeElement != null && latitudeElement != null)
{
return(new GeocoderLocation()
{
Longitude = double.Parse(longitudeElement.Value, CultureInfo.InvariantCulture),
Latitude = double.Parse(latitudeElement.Value, CultureInfo.InvariantCulture)
});
}
}
}
return(null);
}
/// <summary>
/// Downloads the route planning info if it is enabled and the location datas are meaningful enough.
/// </summary>
/// <param name="operation"></param>
private void DownloadRoutePlan(Operation operation)
{
if (!AlarmWorkflowConfiguration.Instance.DownloadRoutePlan)
{
return;
}
// Get start address and check if it is meaningful enough (if not then bail out)
PropertyLocation source = AlarmWorkflowConfiguration.Instance.FDInformation.Location;
if (!source.IsMeaningful)
{
Logger.Instance.LogFormat(LogType.Warning, this, "Cannot download route plan because the location information for this fire department is not meaningful enough: '{0}'. Please fill the correct address!", source);
return;
}
// Get destination address and check if it is meaningful enough (if not then bail out)
PropertyLocation destination = operation.GetDestinationLocation();
if (!operation.GetDestinationLocation().IsMeaningful)
{
Logger.Instance.LogFormat(LogType.Warning, this, "Destination location is unknown! Cannot download route plan!");
}
else
{
Logger.Instance.LogFormat(LogType.Trace, this, "Downloading route plan to destination '{0}'...", destination.ToString());
Stopwatch sw = Stopwatch.StartNew();
try
{
Image image = _routePlanProvider.GetRouteImage(source, destination);
if (image != null)
{
// Save the image as PNG
using (MemoryStream ms = new MemoryStream())
{
image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
operation.RouteImage = ms.ToArray();
}
}
sw.Stop();
if (operation.RouteImage == null)
{
Logger.Instance.LogFormat(LogType.Warning, this, "The download of the route plan did not succeed. Please check the log for information!");
}
else
{
Logger.Instance.LogFormat(LogType.Trace, this, "Downloaded route plan in '{0}' milliseconds.", sw.ElapsedMilliseconds);
}
}
catch (Exception ex)
{
sw.Stop();
Logger.Instance.LogFormat(LogType.Error, this, "An error occurred while trying to download the route plan! The image will not be available.");
Logger.Instance.LogException(this, ex);
}
}
}
private byte[] DownloadRoutePlan(Operation operation)
{
PropertyLocation source = GetFDLocation();
if (!source.IsMeaningful)
{
Logger.Instance.LogFormat(LogType.Warning, this, Resources.RoutePlanningSourceLocationNotMeaningful, source);
return(null);
}
PropertyLocation destination = operation.GetDestinationLocation();
if (!operation.GetDestinationLocation().IsMeaningful)
{
Logger.Instance.LogFormat(LogType.Warning, this, Resources.DestinationLocationIsUnknown);
return(null);
}
Logger.Instance.LogFormat(LogType.Trace, this, Resources.DownloadRoutePlanBegin, destination.ToString());
Stopwatch sw = Stopwatch.StartNew();
try
{
byte[] imageBuffer = GoogleMapsProvider.GetRouteImage(source, destination);
sw.Stop();
if (imageBuffer == null)
{
Logger.Instance.LogFormat(LogType.Warning, this, Resources.DownloadRoutePlanFailed);
}
else
{
Logger.Instance.LogFormat(LogType.Trace, this, Resources.DownloadRoutePlanSuccess, sw.ElapsedMilliseconds);
}
return(imageBuffer);
}
catch (Exception ex)
{
sw.Stop();
Logger.Instance.LogFormat(LogType.Error, this, Resources.DownloadRoutePlanError);
Logger.Instance.LogException(this, ex);
}
return(null);
}