/// <summary>
/// Writes enumerable collection as a JSON array.
/// </summary>
public void Write(IEnumerable array)
{
if (array == null)
{
throw new ArgumentNullException("array");
}
// already implements serialization interface?
IJSonWritable jValue = array as IJSonWritable;
if (jValue != null)
{
jValue.Write(this);
return;
}
// is marked with serialization attribute?
Type oType = array.GetType();
JSonSerializableAttribute jsonAttribute = ReflectionHelper.GetCustomAttribute <JSonSerializableAttribute>(oType);
if (jsonAttribute != null)
{
WriteAttributedObject(array, oType, jsonAttribute);
return;
}
WriteArrayBegin();
foreach (object value in array)
{
WriteEmbeddedValue(value);
}
WriteArrayEnd();
}
/// <summary>
/// Writes a dictionary as a JSON object.
/// </summary>
public void Write(IDictionary dictionary)
{
if (dictionary == null)
{
throw new ArgumentNullException("dictionary");
}
// already implements serialization interface?
IJSonWritable jValue = dictionary as IJSonWritable;
if (jValue != null)
{
jValue.Write(this);
return;
}
// is marked with serialization attribute?
Type oType = dictionary.GetType();
JSonSerializableAttribute jsonAttribute = ReflectionHelper.GetCustomAttribute <JSonSerializableAttribute>(oType);
if (jsonAttribute != null)
{
WriteAttributedObject(dictionary, oType, jsonAttribute);
return;
}
WriteObjectBegin();
foreach (DictionaryEntry entry in dictionary)
{
WriteMember(entry.Key.ToString());
WriteEmbeddedValue(entry.Value);
}
WriteObjectEnd();
}
private void WriteAttributedObject(object o, Type oType, JSonSerializableAttribute jsonAttribute)
{
if (o == null)
{
throw new ArgumentNullException("o");
}
if (oType == null)
{
throw new ArgumentNullException("oType");
}
if (jsonAttribute == null)
{
throw new ArgumentNullException("jsonAttribute");
}
// get members that will be serialized:
#if WINDOWS_STORE
IEnumerable <FieldInfo> fieldMembers = ReflectionHelper.GetFields(oType);
IEnumerable <PropertyInfo> propertyMembers = ReflectionHelper.GetProperties(oType);
#else
IEnumerable <FieldInfo> fieldMembers = ReflectionHelper.GetFields(oType, jsonAttribute.Flags);
IEnumerable <PropertyInfo> propertyMembers = ReflectionHelper.GetProperties(oType, jsonAttribute.Flags);
#endif
WriteObjectBegin();
// serialize all fields:
foreach (FieldInfo f in fieldMembers)
{
if (!f.IsLiteral)
{
JSonMemberAttribute attr = ReflectionHelper.GetCustomAttribute <JSonMemberAttribute>(f);
if (attr != null || jsonAttribute.AllowAllFields)
{
WriteAttributedMember(f.Name, f.GetValue(o), attr);
}
}
}
// serialize all properties:
foreach (PropertyInfo p in propertyMembers)
{
// there must be a getter defined:
if (p.CanRead)
{
JSonMemberAttribute attr = ReflectionHelper.GetCustomAttribute <JSonMemberAttribute>(p);
if (attr != null || jsonAttribute.AllowAllProperties)
{
WriteAttributedMember(p.Name, p.GetValue(o, null), attr);
}
}
}
WriteObjectEnd();
}
/// <summary>
/// Writes whole object represented as dictionary or enumerable collection.
/// </summary>
public void Write(object o)
{
// try to access object as IJSonWritable class:
IJSonWritable jValue = o as IJSonWritable;
if (jValue != null)
{
Write(jValue);
return;
}
if (o != null)
{
Type oType = o.GetType();
JSonSerializableAttribute jsonAttribute = ReflectionHelper.GetCustomAttribute <JSonSerializableAttribute>(oType);
if (jsonAttribute != null)
{
WriteAttributedObject(o, oType, jsonAttribute);
return;
}
}
// try to access object as dictionary:
IDictionary dict = o as IDictionary;
if (dict != null)
{
Write(dict);
return;
}
// try to access object as enumerable:
IEnumerable array = o as IEnumerable;
if (array != null)
{
Write(array);
return;
}
throw new ArgumentException("Invalid object type to serialize to JSON", "o");
}
private void WriteAttributedObject(object o, Type oType, JSonSerializableAttribute jsonAttribute)
{
if (o == null)
throw new ArgumentNullException("o");
if (oType == null)
throw new ArgumentNullException("oType");
if (jsonAttribute == null)
throw new ArgumentNullException("jsonAttribute");
// get members that will be serialized:
#if WINDOWS_STORE
IEnumerable<FieldInfo> fieldMembers = ReflectionHelper.GetFields(oType);
IEnumerable<PropertyInfo> propertyMembers = ReflectionHelper.GetProperties(oType);
#else
IEnumerable<FieldInfo> fieldMembers = ReflectionHelper.GetFields(oType, jsonAttribute.Flags);
IEnumerable<PropertyInfo> propertyMembers = ReflectionHelper.GetProperties(oType, jsonAttribute.Flags);
#endif
WriteObjectBegin();
// serialize all fields:
foreach (FieldInfo f in fieldMembers)
{
if (!f.IsLiteral)
{
JSonMemberAttribute attr = ReflectionHelper.GetCustomAttribute<JSonMemberAttribute>(f);
if (attr != null || jsonAttribute.AllowAllFields)
{
WriteAttributedMember(f.Name, f.GetValue(o), attr);
}
}
}
// serialize all properties:
foreach (PropertyInfo p in propertyMembers)
{
// there must be a getter defined:
if (p.CanRead)
{
JSonMemberAttribute attr = ReflectionHelper.GetCustomAttribute<JSonMemberAttribute>(p);
if (attr != null || jsonAttribute.AllowAllProperties)
{
WriteAttributedMember(p.Name, p.GetValue(o, null), attr);
}
}
}
WriteObjectEnd();
}
private void WriteEmbeddedValue(object oValue)
{
// check if this is a struct:
if (oValue is Single)
{
WriteValue((Single)oValue);
return;
}
if (oValue is Double)
{
WriteValue((Double)oValue);
return;
}
if (oValue is Decimal)
{
WriteValue((Decimal)oValue);
return;
}
if (oValue is DateTime)
{
WriteValue((DateTime)oValue);
return;
}
if (oValue is TimeSpan)
{
WriteValue((TimeSpan)oValue);
return;
}
if (oValue is Boolean)
{
WriteValue((Boolean)oValue);
return;
}
// check if this is a class object:
if (oValue == null)
{
WriteValueNull();
return;
}
if (oValue is DBNull)
{
WriteValueNull();
return;
}
if (oValue is String || oValue is Char)
{
WriteValue(oValue.ToString());
return;
}
if (oValue is Guid)
{
WriteValue((Guid)oValue);
return;
}
if (oValue is Enum)
{
WriteValue(oValue.ToString());
return;
}
// does it implement the dedicated serialization interface?
IJSonWritable jValue = oValue as IJSonWritable;
if (jValue != null)
{
jValue.Write(this);
return;
}
// is it marked with serialization attribute?
Type oType = oValue.GetType();
JSonSerializableAttribute jsonAttribute = ReflectionHelper.GetCustomAttribute <JSonSerializableAttribute>(oType);
if (jsonAttribute != null)
{
WriteAttributedObject(oValue, oType, jsonAttribute);
return;
}
// is a dictionary?
IDictionary dict = oValue as IDictionary;
if (dict != null)
{
Write(dict);
return;
}
// is an array of elements?
IEnumerable array = oValue as IEnumerable;
if (array != null)
{
Write(array);
}
else
{
WriteValueInternal(oValue.ToString(), false);
}
}
private void WriteAttributedObject(object o, Type oType, JSonSerializableAttribute jsonAttribute)
{
if (o == null)
throw new ArgumentNullException("o");
if (oType == null)
throw new ArgumentNullException("oType");
if (jsonAttribute == null)
throw new ArgumentNullException("jsonAttribute");
// get members that will be serialized:
FieldInfo[] fieldMembers = oType.GetFields(jsonAttribute.Flags);
PropertyInfo[] propertyMembers = oType.GetProperties(jsonAttribute.Flags);
WriteObjectBegin();
// serialize all fields:
foreach (FieldInfo f in fieldMembers)
{
if (!f.IsLiteral)
{
JSonMemberAttribute attr = (JSonMemberAttribute)Attribute.GetCustomAttribute(f, typeof(JSonMemberAttribute));
if (attr != null || jsonAttribute.AllowAllFields)
{
WriteAttributedMember(f.Name, f.GetValue(o), attr);
}
}
}
// serialize all properties:
foreach (PropertyInfo p in propertyMembers)
{
// there must be a getter defined:
if (p.CanRead)
{
JSonMemberAttribute attr = (JSonMemberAttribute)Attribute.GetCustomAttribute(p, typeof(JSonMemberAttribute));
if (attr != null || jsonAttribute.AllowAllProperties)
{
WriteAttributedMember(p.Name, p.GetValue(o, null), attr);
}
}
}
WriteObjectEnd();
}
