Thrift IDL for Siren Entity

order.thrift

struct Order {
  1: optional set<string> class_
  2: optional OrderProperties properties
  3: optional OrderSubEntities entities
  4: optional set<Action> actions
  5: optional set<Link> links
}

struct OrderProperties {
  1: required i32 orderNumber
  2: optional i32 orderCount
  3: required string status 
}

union OrderSubEntities {
  1: CustomerEntity customer_entity
  2: LinkedEntity collection_linked_entity
}

struct CustomerEntity {
  1: optional set<string> class_
  2: optional CustomerEntityProperties properties
  3: optional set<string> rel
  4: optional set<Link> links
}

struct CustomerEntityProperties {
  1: required string customerId
  2: optional string name
}

struct Action {
  1: required string name
  2: required string href
  3: optional string title
  4: optional string type
  5: optional string method
  6: optional set<Field> fields
  7: optional set<string> class_
}

struct Field {
  1: required string name
  2: optional set<string> class_
  3: optional string title
  4: optional string type
  5: optional FieldValue value
}

struct Link {
  1: required set<string> rel
  2: required string href
  3: optional string title
  4: optional string type
  5: optional set<string> class_
}

struct LinkedEntity {
  1: optional set<string> class_
  2: required set<string> rel
  3: required string href
  4: optional string title
}

union FieldValue {
  1: StringValue string_value
  2: Int32Value i32_value
  3: RadioValue radio_value
}

struct StringValue {
  1: required string value
}

struct Int32Value {
  1: required string value
}

struct RadioValue {
  1: required set<RadioItem> value;
}

struct RadioItem {
  1: required string value;
}

siren.thrift

struct Entity {
  1: optional set<string> class
  2: optional set<Entity> entities
  3: optional set<Action> actions
  4: optional set<Link> links
}

struct Link {
  1: required set<string> rel
  2: required string href
  3: optional string title
}

struct Action {
  1: required string name
  2: optional string method
  3: required string href
  4: optional string type
  5: optional string title
  6: optional set<Field> fields
}

struct Field {
  1: required string name
  2: optional string type
  3: optional string value
}