/// <summary>
/// Adds a schema name to the map if it doesn't exist yet
/// </summary>
/// <param name="name">schema name</param>
/// <param name="schema">schema object</param>
/// <returns>true if schema was added to the list, false if schema is already in the list</returns>
public bool Add(SchemaName name, NamedSchema schema)
{
if (Names.ContainsKey(name))
{
return(false);
}
Names.Add(name, schema);
return(true);
}
/// <summary>
/// Tries to get the value for the given name fields
/// </summary>
/// <param name="name">name of the schema</param>
/// <param name="space">namespace of the schema</param>
/// <param name="encspace">enclosing namespace of the schema</param>
/// <param name="schema">schema object found</param>
/// <returns>true if name is found in the map, false otherwise</returns>
public bool TryGetValue(string name, string space, string encspace, out NamedSchema schema)
{
var schemaName = new SchemaName(name, space, encspace);
return(Names.TryGetValue(schemaName, out schema));
}
/// <summary>
/// Adds a named schema to the list
/// </summary>
/// <param name="schema">schema object</param>
/// <returns>true if schema was added to the list, false if schema is already in the list</returns>
public bool Add(NamedSchema schema)
{
return(Add(schema.SchemaName, schema));
}
/// <summary>
/// Static method to return new instance of schema object
/// </summary>
/// <param name="jtok">JSON object</param>
/// <param name="names">list of named schemas already read</param>
/// <param name="encspace">enclosing namespace of the schema</param>
/// <returns>new Schema object</returns>
internal static Schema ParseJson(JToken jtok, SchemaNames names, string encspace)
{
if (null == jtok)
{
throw new ArgumentNullException("jtok", "jtok cannot be null.");
}
if (jtok.Type == JTokenType.String)
// primitive schema with no 'type' property or primitive or named type of a record field
{
string value = (string)jtok;
PrimitiveSchema ps = PrimitiveSchema.NewInstance(value);
if (null != ps)
{
return(ps);
}
NamedSchema schema = null;
if (names.TryGetValue(value, null, encspace, out schema))
{
return(schema);
}
throw new SchemaParseException("Undefined name: " + value);
}
if (jtok is JArray) // union schema with no 'type' property or union type for a record field
{
return(UnionSchema.NewInstance(jtok as JArray, null, names, encspace));
}
if (jtok is JObject) // JSON object with open/close parenthesis, it must have a 'type' property
{
JObject jo = jtok as JObject;
JToken jtype = jo["type"];
if (null == jtype)
{
throw new SchemaParseException("Property type is required");
}
var props = JsonHelper.GetProperties(jtok);
if (jtype.Type == JTokenType.String)
{
string type = (string)jtype;
if (type.Equals("array"))
{
return(ArraySchema.NewInstance(jtok, props, names, encspace));
}
if (type.Equals("map"))
{
return(MapSchema.NewInstance(jtok, props, names, encspace));
}
Schema schema = PrimitiveSchema.NewInstance((string)type, props);
if (null != schema)
{
return(schema);
}
return(NamedSchema.NewInstance(jo, props, names, encspace));
}
else if (jtype.Type == JTokenType.Array)
{
return(UnionSchema.NewInstance(jtype as JArray, props, names, encspace));
}
}
throw new BaijiTypeException("Invalid JSON for schema: " + jtok);
}