/// <summary>
/// Determines if the property or field should not be serialized.
/// </summary>
/// <param name="objType"></param>
/// <param name="member"></param>
/// <param name="value"></param>
/// <returns></returns>
/// <remarks>
/// Checks these in order, if any returns true then this is true:
/// - is flagged with the JsonIgnoreAttribute property
/// - has a JsonSpecifiedProperty which returns false
/// </remarks>
private bool IsIgnored(Type objType, MemberInfo member, object obj)
{
if (JsonIgnoreAttribute.IsJsonIgnore(member))
{
return(true);
}
string specifiedProperty = JsonSpecifiedPropertyAttribute.GetJsonSpecifiedProperty(member);
if (!String.IsNullOrEmpty(specifiedProperty))
{
PropertyInfo specProp = objType.GetProperty(specifiedProperty);
if (specProp != null)
{
object isSpecified = specProp.GetValue(obj, null);
if (isSpecified is Boolean && !Convert.ToBoolean(isSpecified))
{
return(true);
}
}
}
//If the class is specified as opt-in serialization only, members must have the JsonMember attribute
if (objType.GetCustomAttributes(typeof(JsonOptInAttribute), true).Length != 0)
{
#if NETFX_CORE
var customAttrs = member.GetCustomAttributes(typeof(JsonMemberAttribute), true);
System.Attribute[] customAttrsArr = customAttrs == null ? null : customAttrs.ToArray();
if (customAttrs == null || customAttrsArr == null || customAttrsArr.Length == 0)
{
#else
if (member.GetCustomAttributes(typeof(JsonMemberAttribute), true).Length == 0)
{
#endif
return(true);
}
}
if (this.settings.UseXmlSerializationAttributes)
{
if (JsonIgnoreAttribute.IsXmlIgnore(member))
{
return(true);
}
PropertyInfo specProp = objType.GetProperty(member.Name + "Specified");
if (specProp != null)
{
object isSpecified = specProp.GetValue(obj, null);
if (isSpecified is Boolean && !Convert.ToBoolean(isSpecified))
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Determines if the property or field should not be serialized.
/// </summary>
/// <param name="objType"></param>
/// <param name="member"></param>
/// <param name="value"></param>
/// <returns></returns>
/// <remarks>
/// Checks these in order, if any returns true then this is true:
/// - is flagged with the JsonIgnoreAttribute property
/// - has a JsonSpecifiedProperty which returns false
/// </remarks>
private bool IsIgnored(Type objType, MemberInfo member, object obj)
{
if (JsonIgnoreAttribute.IsJsonIgnore(member))
{
return(true);
}
string specifiedProperty = JsonSpecifiedPropertyAttribute.GetJsonSpecifiedProperty(member);
if (!String.IsNullOrEmpty(specifiedProperty))
{
#if WINDOWS_STORE
PropertyInfo specProp = TCU.GetTypeInfo(objType).GetRuntimeProperty(specifiedProperty);
#else
PropertyInfo specProp = TCU.GetTypeInfo(objType).GetProperty(specifiedProperty);
#endif
if (!PropertyInfo.Equals(specProp, null))
{
object isSpecified = specProp.GetValue(obj, null);
if (isSpecified is Boolean && !Convert.ToBoolean(isSpecified))
{
return(true);
}
}
}
//If the class is specified as opt-in serialization only, members must have the JsonMember attribute
#if WINDOWS_STORE
if (objType.GetCustomAttribute <JsonOptInAttribute>(true) != null)
{
if (member.GetCustomAttribute <JsonMemberAttribute>(true) == null)
{
return(true);
}
}
#else
if (objType.GetCustomAttributes(typeof(JsonOptInAttribute), true).Length != 0)
{
if (member.GetCustomAttributes(typeof(JsonMemberAttribute), true).Length == 0)
{
return(true);
}
}
#endif
if (this.settings.UseXmlSerializationAttributes)
{
if (JsonIgnoreAttribute.IsXmlIgnore(member))
{
return(true);
}
#if WINDOWS_STORE
PropertyInfo specProp = TCU.GetTypeInfo(objType).GetRuntimeProperty(specifiedProperty);
#else
PropertyInfo specProp = TCU.GetTypeInfo(objType).GetProperty(member.Name + "Specified");
#endif
if (!PropertyInfo.Equals(specProp, null))
{
object isSpecified = specProp.GetValue(obj, null);
if (isSpecified is Boolean && !Convert.ToBoolean(isSpecified))
{
return(true);
}
}
}
return(false);
}
/** Creates a member map for the type */
private Dictionary<string, MemberInfo> CreateMemberMap(Type objectType)
{
Dictionary<string, MemberInfo> memberMap;
if (this.MemberMapCache.TryGetValue(objectType, out memberMap))
{
// map was stored in cache
return memberMap;
}
// create a new map
memberMap = new Dictionary<string, MemberInfo>();
// load properties into property map
PropertyInfo[] properties = objectType.GetProperties( BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance );
foreach (PropertyInfo info in properties)
{
if (!info.CanRead || !info.CanWrite)
{
continue;
}
if (JsonIgnoreAttribute.IsJsonIgnore(info))
{
continue;
}
string jsonName = JsonNameAttribute.GetJsonName(info);
if (String.IsNullOrEmpty(jsonName))
{
memberMap[info.Name] = info;
}
else
{
memberMap[jsonName] = info;
}
}
// load public fields into property map
FieldInfo[] fields = objectType.GetFields( BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance );
foreach (FieldInfo info in fields)
{
if (!info.IsPublic && info.GetCustomAttributes(typeof(JsonMemberAttribute),true).Length == 0)
{
continue;
}
if (JsonIgnoreAttribute.IsJsonIgnore(info))
{
continue;
}
string jsonName = JsonNameAttribute.GetJsonName(info);
if (String.IsNullOrEmpty(jsonName))
{
memberMap[info.Name] = info;
}
else
{
memberMap[jsonName] = info;
}
}
// store in cache for repeated usage
this.MemberMapCache[objectType] = memberMap;
return memberMap;
}