/// <summary>
/// Reads a schema from a JSON token.
/// </summary>
/// <param name="element">
/// The element to parse.
/// </param>
/// <param name="cache">
/// An optional schema cache. The cache is populated as the schema is read and can be used
/// to provide schemas for certain names or cache keys.
/// </param>
/// <param name="scope">
/// The surrounding namespace, if any.
/// </param>
public override IJsonSchemaReadResult Read(JsonElement element, ConcurrentDictionary <string, Schema> cache, string?scope)
{
var result = new JsonSchemaReadResult();
if (GetType(element) == JsonSchemaToken.Int && GetLogicalType(element) == JsonSchemaToken.Date)
{
result.Schema = cache.GetOrAdd($"{JsonSchemaToken.Int}!{JsonSchemaToken.Date}", _ => new IntSchema()
{
LogicalType = new DateLogicalType()
});
}
else
{
result.Exceptions.Add(new UnknownSchemaException("The date case can only be applied to \"int\" schemas with a \"date\" logical type."));
}
return(result);
}
/// <summary>
/// Reads a schema from a JSON token.
/// </summary>
/// <param name="element">
/// The element to parse.
/// </param>
/// <param name="cache">
/// An optional schema cache. The cache is populated as the schema is read and can be used
/// to provide schemas for certain names or cache keys.
/// </param>
/// <param name="scope">
/// The surrounding namespace, if any.
/// </param>
public override IJsonSchemaReadResult Read(JsonElement element, ConcurrentDictionary <string, Schema> cache, string?scope)
{
var result = new JsonSchemaReadResult();
if (GetType(element) == JsonSchemaToken.Array)
{
var child = Reader.Read(GetItems(element), cache, scope);
var key = cache.Single(p => p.Value == child).Key;
result.Schema = cache.GetOrAdd($"{JsonSchemaToken.Array}<{key}>", _ => new ArraySchema(child));
}
else
{
result.Exceptions.Add(new UnknownSchemaException("The array case can only be applied to valid array schema representations."));
}
return(result);
}
/// <summary>
/// Reads a schema from a JSON token.
/// </summary>
/// <param name="element">
/// The element to parse.
/// </param>
/// <param name="cache">
/// An optional schema cache. The cache is populated as the schema is read and can be used
/// to provide schemas for certain names or cache keys.
/// </param>
/// <param name="scope">
/// The surrounding namespace, if any.
/// </param>
public override IJsonSchemaReadResult Read(JsonElement element, ConcurrentDictionary <string, Schema> cache, string?scope)
{
var result = new JsonSchemaReadResult();
if (GetType(element) is string type && (type == JsonSchemaToken.Bytes || type == JsonSchemaToken.Fixed) && GetLogicalType(element) == JsonSchemaToken.Decimal)
{
if (type == JsonSchemaToken.Fixed)
{
var schema = new FixedSchema(GetQualifiedName(element, scope), GetSize(element))
{
Aliases = GetQualifiedAliases(element, scope) ?? new string[0],
LogicalType = new DecimalLogicalType(GetPrecision(element), GetScale(element))
};
if (!cache.TryAdd(schema.FullName, schema))
{
throw new InvalidDataException($"Invalid fixed name; a definition for {schema.FullName} was already read.");
}
foreach (var alias in schema.Aliases)
{
if (!cache.TryAdd(alias, schema))
{
throw new InvalidDataException($"Invalid fixed alias; a definition for {alias} was already read.");
}
}
result.Schema = schema;
}
else
{
result.Schema = cache.GetOrAdd($"{JsonSchemaToken.Bytes}!{JsonSchemaToken.Decimal}", new BytesSchema()
{
LogicalType = new DecimalLogicalType(GetPrecision(element), GetScale(element))
});
}
}
