/// <summary>
/// Writes JSON property name and value if value is not null
/// </summary>
/// <param name="writer">JSON writer</param>
/// <param name="key">property name</param>
/// <param name="value">property value</param>
internal static void writeIfNotNullOrEmpty(JsonTextWriter writer, string key, string value)
{
if (string.IsNullOrEmpty(value)) return;
writer.WritePropertyName(key);
writer.WriteValue(value);
}
/// <summary>
/// Writes opening { and 'type' property
/// </summary>
/// <param name="writer">JSON writer</param>
private void writeStartObject(JsonTextWriter writer)
{
writer.WriteStartObject();
writer.WritePropertyName("type");
writer.WriteValue(GetTypeString(this.Tag));
}
/// <summary>
/// Writes the Field class in JSON format
/// </summary>
/// <param name="writer">JSON writer</param>
/// <param name="names">list of named schemas already written</param>
/// <param name="encspace">enclosing namespace for the field</param>
protected internal void writeJson(JsonTextWriter writer, SchemaNames names, string encspace)
{
writer.WriteStartObject();
JsonHelper.writeIfNotNullOrEmpty(writer, "name", this.Name);
JsonHelper.writeIfNotNullOrEmpty(writer, "doc", this.Documentation);
if (null != this.DefaultValue)
{
writer.WritePropertyName("default");
this.DefaultValue.WriteTo(writer, null);
}
if (null != this.Schema)
{
writer.WritePropertyName("type");
Schema.WriteJson(writer, names, encspace);
}
if (null != this.Props)
this.Props.WriteJson(writer);
if (null != aliases)
{
writer.WritePropertyName("aliases");
writer.WriteStartArray();
foreach (string name in aliases)
writer.WriteValue(name);
writer.WriteEndArray();
}
writer.WriteEndObject();
}
/// <summary>
/// Returns the canonical JSON representation of this schema.
/// </summary>
/// <returns>The canonical JSON representation of this schema.</returns>
public override string ToString()
{
System.IO.StringWriter sw = new System.IO.StringWriter();
Arch.CMessaging.Client.Newtonsoft.Json.JsonTextWriter writer = new Arch.CMessaging.Client.Newtonsoft.Json.JsonTextWriter(sw);
if (this is PrimitiveSchema || this is UnionSchema)
{
writer.WriteStartObject();
writer.WritePropertyName("type");
}
WriteJson(writer, new SchemaNames(), null); // stand alone schema, so no enclosing name space
if (this is PrimitiveSchema || this is UnionSchema)
writer.WriteEndObject();
return sw.ToString();
}