public bool GetConvertResponse(ConvertSvgToImageRequest pub)
{
var settings = new Settings();
IDatabase db = ConnectionMultiplexer.GetDatabase(settings.RedisDatabaseKey);
ISubscriber sub = ConnectionMultiplexer.GetSubscriber();
var elapsedSeconds = 0;
var serialisedObject = Newtonsoft.Json.JsonConvert.SerializeObject(pub);
db.ListLeftPush(RequestSubcriberChannelNames.ConvertSvgRequestQueue, serialisedObject);
sub.Publish(RequestSubcriberChannelNames.ConvertSvgRequestChannel, "");
string value = db.StringGet(pub.Guid);
while (string.IsNullOrEmpty(value))
{
elapsedSeconds++;
value = db.StringGet(pub.Guid);
if (!string.IsNullOrEmpty(value))
{
db.KeyDelete(pub.Guid, CommandFlags.FireAndForget);
return(value == "Completed");
}
Thread.Sleep(1000);
if (elapsedSeconds == WaitForSeconds)
{
db.KeyDelete(pub.Guid, CommandFlags.FireAndForget);
return(false);
}
}
return(true);
}
public string GenerateImage(string svgFilePath)
{
var returnFileName = Path.GetDirectoryName(svgFilePath) + "\\" + Path.GetFileNameWithoutExtension(svgFilePath)
+ ".png";
if (svgFilePath.IndexOfAny(Path.GetInvalidPathChars()) != -1)
{
throw new InvalidDirectoryPathException();
}
if (returnFileName.IndexOfAny(Path.GetInvalidPathChars()) != -1)
{
throw new InvalidDirectoryPathException();
}
svgFilePath = svgFilePath.Replace(Environment.NewLine, "");
returnFileName = returnFileName.Replace(Environment.NewLine, "");
/*
* var process = new Process();
* var startInfo = new ProcessStartInfo("inkscape")
* {
* Arguments = " -z -f \"" + svgFilePath + "\" -e \"" + returnFileName + "\"",
* UseShellExecute = false, // needs to be false in order to redirect output
* CreateNoWindow = false,
* RedirectStandardOutput = true,
* RedirectStandardError = true,
* RedirectStandardInput = true, // redirect all 3, as it should be all 3 or none
* //WorkingDirectory = "D:\\"
* };
*
* process.StartInfo = startInfo;
* process.Start();
* process.WaitForExit();
*
* int returnCode = process.ExitCode;
* process.Close();
*/
var args = " -z -f \"" + svgFilePath + "\" -e \"" + returnFileName + "\"";
var pub = new ConvertSvgToImageRequest {
Arguments = args
};
var success = GetConvertResponse(pub);
// if 0, it worked
return((success) ? returnFileName : null);
}
