//---------------------------------------------------------------------
// Static members
internal static GeoQuery FromMessage(GeoQueryMsg queryMsg)
{
GeoQuery query = new GeoQuery();
string value;
query.Options = GeoQueryOptions.Load(queryMsg);
query.EntityFilters = queryMsg._GetArray("EntityFilter");
query.GroupFilters = queryMsg._GetArray("QueryFilter");
value = queryMsg._Get("Region", (string)null);
if (!string.IsNullOrWhiteSpace(value))
{
query.Region = GeoRegion.Parse(value);
}
if (!string.IsNullOrWhiteSpace(queryMsg["MinTimeUtc"]))
{
query.MinTimeUtc = queryMsg._Get("MinTimeUtc", DateTime.MinValue);
}
if (!string.IsNullOrWhiteSpace(queryMsg["MaxTimeUtc"]))
{
query.MaxTimeUtc = queryMsg._Get("MaxTimeUtc", DateTime.MaxValue);
}
return(query);
}
/// <summary>
/// Deserializes the query options from a <see cref="GeoQueryMsg" /> if any options
/// are present.
/// </summary>
/// <param name="queryMsg">The source message.</param>
/// <returns>The deserialized options or <c>null</c> if none are present.</returns>
internal static GeoQueryOptions Load(GeoQueryMsg queryMsg)
{
string queryType = queryMsg._Get("QueryType", (string)null);
GeoQueryOptions options;
switch (queryType)
{
case EntityQueryKey:
options = new GeoEntityQueryOptions();
break;
case HeatmapQueryKey:
options = new GeoHeatmapQueryOptions();
break;
default:
return(null);
}
options.LoadFrom(queryMsg);
return(options);
}
/// <summary>
/// Derived classes must implement this to load the option fields from the
/// query passed.
/// </summary>
/// <param name="queryMsg">The source message.</param>
/// <remarks>
/// The derived class must store its values as <see cref="PropertyMsg" /> fields
/// using <b>"Option."</b> as the key prefix for each value's property name.
/// </remarks>
protected override void LoadFrom(GeoQueryMsg queryMsg)
{
string value;
double d;
value = queryMsg._Get("Option.MapBounds", (string)null);
if (!string.IsNullOrWhiteSpace(value))
{
MapBounds = (GeoRectangle)GeoRegion.Parse(value);
}
value = queryMsg._Get("Option.ResolutionMiles", (string)null);
if (!string.IsNullOrWhiteSpace(value))
{
if (double.TryParse(value, out d))
{
ResolutionMiles = d;
}
}
}
/// <summary>
/// Derived classes must implement this to load the option fields from the
/// query passed.
/// </summary>
/// <param name="queryMsg">The source message.</param>
/// <remarks>
/// The derived class must store its values as <see cref="PropertyMsg" /> fields
/// using <b>"Option."</b> as the key prefix for each value's property name.
/// </remarks>
protected override void LoadFrom(GeoQueryMsg queryMsg)
{
this.FixCount = queryMsg._Get("Option.FixCount", this.FixCount);
this.MinFixTimeUtc = queryMsg._Get("Option.MinFixTimeUtc", this.MinFixTimeUtc);
this.FixFields = (GeoFixField)queryMsg._Get("Option.FixFields", (int)this.FixFields);
}