/// <summary>
/// Loads an <see cref="JProperty"/> from a <see cref="JsonReader"/>.
/// </summary>
/// <param name="reader">A <see cref="JsonReader"/> that will be read for the content of the <see cref="JProperty"/>.</param>
/// <returns>A <see cref="JProperty"/> that contains the JSON that was read from the specified <see cref="JsonReader"/>.</returns>
public static new JProperty Load(JsonReader reader)
{
if (reader.TokenType == JsonToken.None)
{
if (!reader.Read())
throw new Exception("Error reading JProperty from JsonReader.");
}
if (reader.TokenType != JsonToken.PropertyName)
throw new Exception(
"Error reading JProperty from JsonReader. Current JsonReader item is not a property: {0}".FormatWith(
CultureInfo.InvariantCulture, reader.TokenType));
JProperty p = new JProperty((string)reader.Value);
p.SetLineInfo(reader as IJsonLineInfo);
p.ReadTokenFrom(reader);
return p;
}
/// <summary>
/// Initializes a new instance of the <see cref="JProperty"/> class from another <see cref="JProperty"/> object.
/// </summary>
/// <param name="other">A <see cref="JProperty"/> object to copy from.</param>
public JProperty(JProperty other)
: base(other)
{
_name = other.Name;
}
internal void ReadContentFrom(JsonReader r)
{
ValidationUtils.ArgumentNotNull(r, "r");
IJsonLineInfo lineInfo = r as IJsonLineInfo;
JContainer parent = this;
do
{
if (parent is JProperty && ((JProperty)parent).Value != null)
{
if (parent == this)
{
return;
}
parent = parent.Parent;
}
switch (r.TokenType)
{
case JsonToken.None:
// new reader. move to actual content
break;
case JsonToken.StartArray:
JArray a = new JArray();
a.SetLineInfo(lineInfo);
parent.Add(a);
parent = a;
break;
case JsonToken.EndArray:
if (parent == this)
{
return;
}
parent = parent.Parent;
break;
case JsonToken.StartObject:
JObject o = new JObject();
o.SetLineInfo(lineInfo);
parent.Add(o);
parent = o;
break;
case JsonToken.EndObject:
if (parent == this)
{
return;
}
parent = parent.Parent;
break;
case JsonToken.StartConstructor:
JConstructor constructor = new JConstructor(r.Value.ToString());
constructor.SetLineInfo(constructor);
parent.Add(constructor);
parent = constructor;
break;
case JsonToken.EndConstructor:
if (parent == this)
{
return;
}
parent = parent.Parent;
break;
case JsonToken.String:
case JsonToken.Integer:
case JsonToken.Float:
case JsonToken.Date:
case JsonToken.Boolean:
case JsonToken.Bytes:
JValue v = new JValue(r.Value);
v.SetLineInfo(lineInfo);
parent.Add(v);
break;
case JsonToken.Comment:
v = JValue.CreateComment(r.Value.ToString());
v.SetLineInfo(lineInfo);
parent.Add(v);
break;
case JsonToken.Null:
v = new JValue(null, JTokenType.Null);
v.SetLineInfo(lineInfo);
parent.Add(v);
break;
case JsonToken.Undefined:
v = new JValue(null, JTokenType.Undefined);
v.SetLineInfo(lineInfo);
parent.Add(v);
break;
case JsonToken.PropertyName:
string propertyName = r.Value.ToString();
JProperty property = new JProperty(propertyName);
property.SetLineInfo(lineInfo);
JObject parentObject = (JObject)parent;
// handle multiple properties with the same name in JSON
JProperty existingPropertyWithName = parentObject.Property(propertyName);
if (existingPropertyWithName == null)
{
parent.Add(property);
}
else
{
existingPropertyWithName.Replace(property);
}
parent = property;
break;
default:
throw new InvalidOperationException("The JsonReader should not be on a token of type {0}.".FormatWith(CultureInfo.InvariantCulture, r.TokenType));
}
}while (r.Read());
}