/// <summary>
/// Generates a CKAN.META object from a string.
/// Also validates that all required fields are present.
/// Throws a BadMetaDataKraken if any fields are missing.
/// </summary>
public static CkanModule FromJson(string json)
{
if (!validate_json_against_schema(json))
{
throw new BadMetadataKraken(null, "Validation against spec failed");
}
CkanModule newModule = null;
try
{
newModule = JsonConvert.DeserializeObject <CkanModule>(json);
}
catch (JsonException ex)
{
throw new BadMetadataKraken(null, "JSON deserialization error", ex);
}
// NOTE: Many of these tests may be better inour Deserialisation handler.
if (!newModule.IsSpecSupported())
{
throw new UnsupportedKraken(
String.Format(
"{0} requires CKAN {1}, we can't read it.",
newModule,
newModule.spec_version
)
);
}
// Check everything in the spec if defined.
// TODO: This *can* and *should* be done with JSON attributes!
foreach (string field in required_fields)
{
object value = newModule.GetType().GetField(field).GetValue(newModule);
if (value == null)
{
string error = String.Format("{0} missing required field {1}", newModule.identifier, field);
log.Error(error);
throw new BadMetadataKraken(null, error);
}
}
// All good! Return module
return(newModule);
}
/// <summary> Generates a CKAN.META object from a string.
/// Also validates that all required fields are present.
/// </summary>
public static CkanModule from_string(string json)
{
CkanModule newModule = JsonConvert.DeserializeObject <CkanModule> (json);
// Check everything in the spec if defined.
// TODO: It would be great if this could be done with attributes.
foreach (string field in required_fields)
{
object value = newModule.GetType().GetField(field).GetValue(newModule);
if (value == null)
{
Console.WriteLine("Missing required field: {0}", field);
throw new MissingFieldException(); // Is there a better exception choice?
}
}
// All good! Return module
return(newModule);
}
