Class: Udb::TopLevelDatabaseObject

Inherits:
DatabaseObject show all
Extended by:
T::Sig
Defined in:
lib/udb/obj/database_obj.rb,
lib/udb/condition.rb

Overview

base class for any object defined in its own YAML file

expected to contain at least:

$schema:
kind:
name:

Defined Under Namespace

Classes: SchemaError, SchemaValidationError, ValidationError

Instance Attribute Summary

Attributes inherited from DatabaseObject

#arch, #data, #data_path, #long_name, #name

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DatabaseObject

#<=>, #__source, #cfg_arch, #cfg_arch?, #clone, #defer, #defined_by_condition, #description, #inspect, #kind, #source_line

Constructor Details

#initialize(data, data_path, arch) ⇒ TopLevelDatabaseObject

Returns a new instance of TopLevelDatabaseObject.



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# File 'lib/udb/obj/database_obj.rb', line 457

def initialize(data, data_path, arch)
  super(data, data_path, arch, DatabaseObject::Kind.deserialize(T.must_because(data["kind"]) { pp data }))
end

Class Method Details

.create_json_schemer_resolver(udb_resolver) ⇒ Object 



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# File 'lib/udb/obj/database_obj.rb', line 382

def self.create_json_schemer_resolver(udb_resolver)
  proc do |pattern|
    uri_str = pattern.to_s
    if uri_str =~ /^http/
      JSON.parse(T.must(Net::HTTP.get(pattern)))
    elsif uri_str =~ /^json-schemer:\/\/schema/
      JSON.load_file("#{udb_resolver.schemas_path}#{URI(uri_str).path}")
    else
      # Relative $ref values (e.g. "schema_defs.json") are resolved directly
      # from the schemas directory.
      local_path = udb_resolver.schemas_path / File.basename(uri_str)
      JSON.load_file(local_path)
    end
  end
end

Instance Method Details

#key?(k) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/udb/obj/database_obj.rb', line 468

def key?(k) = @data.key?(k)

#keys ⇒ Object 



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# File 'lib/udb/obj/database_obj.rb', line 463

def keys = @data.keys

#validate(resolver) ⇒ Object 



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# File 'lib/udb/obj/database_obj.rb', line 401

def validate(resolver)
  @@schemas[resolver] ||= {}
  schemas = @@schemas[resolver]
  ref_resolver = TopLevelDatabaseObject.create_json_schemer_resolver(resolver)

  if @data.key?("$schema")
    schema_path = data["$schema"]
    schema_file, obj_path = schema_path.split("#")
    # Strip version prefix (e.g. 'v0.1/ext_schema.json' -> 'ext_schema.json')
    schema_basename = File.basename(schema_file)
    schema =
      if schemas.key?(schema_basename)
        schemas[schema_basename]
      else
        schemas[schema_basename] = JSONSchemer.schema(
          File.read("#{resolver.schemas_path}/#{schema_basename}"),
          regexp_resolver: "ecma",
          ref_resolver:,
          insert_property_defaults: true
        )
        raise SchemaError, T.must(schemas[schema_basename]).validate_schema unless T.must(schemas[schema_basename]).valid_schema?

        schemas[schema_basename]
      end

    unless obj_path.nil?
      obj_path_parts = obj_path.split("/")[1..]

      obj_path_parts.each do |k|
        schema = schema.fetch(k)
      end
    end

    # convert through JSON to handle anything supported in YAML but not JSON
    # (e.g., integer object keys will be converted to strings)
    jsonified_obj = JSON.parse(JSON.generate(@data))

    raise "Nothing there?" if jsonified_obj.nil?

    # Normalize the $schema field to the bare filename before validation so that
    # the schema enum (which lists bare names like 'ext_schema.json#') matches
    # even when the resolved file uses a versioned path like 'v0.1/ext_schema.json#'.
    if jsonified_obj.key?("$schema")
      bare_schema = File.basename(jsonified_obj["$schema"].split("#").first) + "#"
      jsonified_obj = jsonified_obj.merge("$schema" => bare_schema)
    end

    raise SchemaValidationError.new(@data_path, schema.validate(jsonified_obj)) unless schema.valid?(jsonified_obj)
  else
    Udb.logger.warn "No $schema for #{@data_path}"
  end
end