/// <summary>
/// Returns the value as a dictionary if the current value represents an object.
/// Otherwise returns null.
/// </summary>
public IDictionary <string, DynamicValue> ToDictionary()
{
if (!(_value is IDictionary <string, object> dict))
{
return(null);
}
return(DynamicDictionary.Create(dict));
}
public T Get <T>(string path)
{
var dynamicDictionary = Value switch
{
DynamicDictionary v => v,
IDictionary <string, object> v => DynamicDictionary.Create(v),
_ => null
};
return(dynamicDictionary == null ? default : dynamicDictionary.Get <T>(path));
}
/// <summary>
/// Returns the value as a dictionary if the current value represents an object.
/// Otherwise returns null.
/// </summary>
public IDictionary <string, DynamicValue> ToDictionary()
{
if (_value is IDictionary <string, object> dict)
{
return(DynamicDictionary.Create(dict));
}
else if (_value is JsonElement e && e.ValueKind == JsonValueKind.Object)
{
var d = e.EnumerateObject()
.Aggregate(new Dictionary <string, object>(), (dictionary, je) =>
{
dictionary.Add(je.Name, je.Value);
return(dictionary);
});
return(DynamicDictionary.Create(d));
}
return(null);
}
public static object ConsumeJsonElement(Type targetReturnType, JsonElement e)
{
// ReSharper disable once HeapView.BoxingAllocation
object ParseNumber(JsonElement el)
{
if (el.TryGetInt64(out var l))
{
return(l);
}
return(el.GetDouble());
}
return(targetReturnType switch
{
_ when targetReturnType == typeof(bool) => e.GetBoolean(),
_ when targetReturnType == typeof(byte) => e.GetByte(),
_ when targetReturnType == typeof(decimal) => e.GetDecimal(),
_ when targetReturnType == typeof(double) => e.GetDouble(),
_ when targetReturnType == typeof(Guid) => e.GetGuid(),
_ when targetReturnType == typeof(short) => e.GetInt16(),
_ when targetReturnType == typeof(int) => e.GetInt32(),
_ when targetReturnType == typeof(long) => e.GetInt64(),
_ when targetReturnType == typeof(float) => e.GetSingle(),
_ when targetReturnType == typeof(string) => e.GetString(),
_ when targetReturnType == typeof(DateTime) => e.GetDateTime(),
_ when targetReturnType == typeof(DateTimeOffset) => e.GetDateTimeOffset(),
_ when targetReturnType == typeof(ushort) => e.GetUInt16(),
_ when targetReturnType == typeof(uint) => e.GetUInt32(),
_ when targetReturnType == typeof(ulong) => e.GetUInt64(),
_ when targetReturnType == typeof(sbyte) => e.GetSByte(),
_ when targetReturnType == typeof(DynamicDictionary) => DynamicDictionary.Create(e),
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.Array =>
e.EnumerateArray().Select(je => ConsumeJsonElement(targetReturnType, je)).ToArray(),
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.Object => e.ToDictionary(),
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.True => true,
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.False => false,
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.Null => null,
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.String => e.GetString(),
_ when targetReturnType == typeof(object) && e.ValueKind == JsonValueKind.Number => ParseNumber(e),
_ => null
});
internal bool TryParse(object defaultValue, Type targetReturnType, object value, out object newObject)
{
newObject = defaultValue;
if (value == null)
{
return(false);
}
if (targetReturnType.IsGenericType && targetReturnType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
targetReturnType = targetReturnType.GenericTypeArguments[0];
}
try
{
var valueType = value.GetType();
if (targetReturnType.IsArray && value is DynamicValue v)
{
value = v.Value;
valueType = value.GetType();
}
if (targetReturnType.IsArray)
{
if (!valueType.IsArray)
{
return(false);
}
var ar = (object[])value;
var t = targetReturnType.GetElementType();
var objectArray = ar
.Select(a => TryParse(defaultValue, t, a, out var o) ? o : null)
.Where(a => a != null)
.ToArray();
var arr = Array.CreateInstance(t, objectArray.Length);
Array.Copy(objectArray, arr, objectArray.Length);
newObject = arr;
return(true);
}
if (valueType.IsAssignableFrom(targetReturnType))
{
newObject = value;
return(true);
}
var stringValue = value as string;
if (targetReturnType == typeof(DateTime) &&
DateTime.TryParse(stringValue, CultureInfo.InvariantCulture, DateTimeStyles.None, out var result))
{
newObject = result;
return(true);
}
if (stringValue != null)
{
if (targetReturnType == typeof(object))
{
newObject = Convert.ChangeType(value, targetReturnType);
return(true);
}
var converter = TypeDescriptor.GetConverter(targetReturnType);
if (converter.IsValid(stringValue))
{
newObject = converter.ConvertFromInvariantString(stringValue);
return(true);
}
}
else if (value is DynamicValue dv)
{
return(dv.TryParse(defaultValue, targetReturnType, dv.Value, out newObject));
}
else if (targetReturnType == typeof(string))
{
newObject = Convert.ChangeType(value, TypeCode.String, CultureInfo.InvariantCulture);
return(true);
}
else if (valueType.IsValueType)
{
newObject = Convert.ChangeType(_value, targetReturnType);
return(true);
}
else if (targetReturnType == typeof(DynamicDictionary) && valueType == typeof(Dictionary <string, object>))
{
newObject = DynamicDictionary.Create(value as Dictionary <string, object>);
return(true);
}
else if (targetReturnType == typeof(object))
{
newObject = value;
return(true);
}
}
catch
{
return(false);
}
return(false);
}
private static ElasticsearchResponse <DynamicDictionary> ToDynamicResponse(ElasticsearchResponse <Dictionary <string, object> > response)
{
return(CloneFrom(response, response.Response != null ? DynamicDictionary.Create(response.Response) : null));
}
/// <summary>
/// Attempts to convert the value to type of T, failing to do so will return the defaultValue.
/// </summary>
/// <typeparam name="T">When no default value is supplied, required to supply the default type</typeparam>
/// <param name="defaultValue">Optional parameter for default value, if not given it returns default of type T</param>
/// <returns>If value is not null, value is returned, else default value is returned</returns>
public T TryParse <T>(T defaultValue = default(T))
{
var type = typeof(T);
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
type = type.GenericTypeArguments[0];
}
if (HasValue)
{
try
{
var valueType = _value.GetType();
if (valueType.IsAssignableFrom(typeof(T)))
{
return((T)_value);
}
var stringValue = _value as string;
if (type == typeof(DateTime))
{
if (DateTime.TryParse(stringValue, CultureInfo.InvariantCulture, DateTimeStyles.None, out var result))
{
return((T)(object)result);
}
}
else if (stringValue != null)
{
if (type == typeof(object))
{
return((T)Convert.ChangeType(_value, type));
}
var converter = TypeDescriptor.GetConverter(type);
if (converter.IsValid(stringValue))
{
return((T)converter.ConvertFromInvariantString(stringValue));
}
}
else if (type == typeof(string))
{
return((T)Convert.ChangeType(_value, TypeCode.String, CultureInfo.InvariantCulture));
}
else if (valueType.IsValueType)
{
return((T)Convert.ChangeType(_value, type));
}
else if (type == typeof(DynamicDictionary) && valueType == typeof(Dictionary <string, object>))
{
return((T)(object)DynamicDictionary.Create(_value as Dictionary <string, object>));
}
else if (type == typeof(object))
{
return((T)_value);
}
}
catch
{
return(defaultValue);
}
}
return(defaultValue);
}