public void ProcessRequest(HttpContext context)
{
HeatMapHandlerQueryStringParser parser = new HeatMapHandlerQueryStringParser(context.Request.QueryString);
context.Response.Clear();
context.Response.ContentType = IMAGE_TYPE;
try
{
var outStream = new MemoryStream();
IList<HeatPoint> list = parser.GetHeatPointList(true);
bool showTileBorder = parser.GetShowTileBorder();
if (0 == list.Count) Error(context, new Exception("data list was empty in request " + context.Request.Url.Query));
Size mapSize = parser.GetHeatMapSize();
Size windowSize = parser.GetHeatMapWindowSize();
Point windowTopLeftCorner = parser.GetWindowTopLeftCornerPoint();
if (windowSize.Height + windowTopLeftCorner.Y > mapSize.Height) windowSize.Height = mapSize.Height - windowTopLeftCorner.Y;
if (windowSize.Width + windowTopLeftCorner.X > mapSize.Width) windowSize.Width = mapSize.Width - windowTopLeftCorner.X;
var hm = new HeatMap(list, mapSize);
Bitmap img = hm.GetBitmap();
img = hm.GetWindow(img, windowSize, windowTopLeftCorner);
if (showTileBorder) img = hm.AddBorder(img);
img.Save(outStream, ImageFormat.Png);
outStream.WriteTo(context.Response.OutputStream);
}
catch (Exception ex)
{
Error(context, ex);
}
}
public void Setup()
{
_queryStringMissingParameter = new NameValueCollection();
_qs1 = new NameValueCollection();
_qs1.Add("data", "10x10,20x20,30x30-2");
_parser = new HeatMapHandlerQueryStringParser(_qs1);
}
public void GetHeatPointRadiusReturnsDefaultIfNotInQueryString()
{
int expected = Constants.HeatMapSettingsDefaults.PointRadius;
NameValueCollection emptyQueryString = new NameValueCollection();
HeatMapHandlerQueryStringParser parser = new HeatMapHandlerQueryStringParser(emptyQueryString);
int actual = parser.GetHeatPointRadius();
Assert.AreEqual(expected, actual);
}
public void GetHeatPointRadiusReturnsValueFromQueryString()
{
int expected = 100;
NameValueCollection queryString = new NameValueCollection();
queryString.Add(Constants.QueryString.HeatMapSettings.PointRadiusKey, expected.ToString());
HeatMapHandlerQueryStringParser parser = new HeatMapHandlerQueryStringParser(queryString);
int actual = parser.GetHeatPointRadius();
Assert.AreEqual(expected, actual);
Assert.AreNotEqual(Constants.HeatMapSettingsDefaults.PointRadius, actual, "The test value should not be equal to the default value of " + Constants.HeatMapSettingsDefaults.PointRadius.ToString());
}