Class: Crawlscope::SchemaRegistry

Inherits:
Object
  • Object
show all
Defined in:
lib/crawlscope/schema_registry.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(schemas: {}) ⇒ SchemaRegistry

Returns a new instance of SchemaRegistry.



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# File 'lib/crawlscope/schema_registry.rb', line 9

def initialize(schemas: {})
  @schemas = schemas.transform_keys(&:to_s).dup
end

Class Method Details

.default ⇒ Object 



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# File 'lib/crawlscope/schema_registry.rb', line 13

def self.default
  new(schemas: Schemas.schemas)
end

Instance Method Details

#dup ⇒ Object 



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# File 'lib/crawlscope/schema_registry.rb', line 17

def dup
  self.class.new(schemas: deep_copy(@schemas))
end

#fetch(type) ⇒ Object 



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# File 'lib/crawlscope/schema_registry.rb', line 21

def fetch(type)
  @schemas.fetch(type.to_s)
end

#register(type, schema) ⇒ Object 



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# File 'lib/crawlscope/schema_registry.rb', line 25

def register(type, schema)
  @schemas[type.to_s] = schema
  self
end

#registered?(type) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/crawlscope/schema_registry.rb', line 30

def registered?(type)
  @schemas.key?(type.to_s)
end

#to_h ⇒ Object 



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# File 'lib/crawlscope/schema_registry.rb', line 66

def to_h
  @schemas.dup
end

#validate(item) ⇒ Object 



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# File 'lib/crawlscope/schema_registry.rb', line 34

def validate(item)
  if item.is_a?(Array)
    return item.flat_map { |entry| validate(entry) }
  end

  errors = []

  if item.is_a?(Hash) && item["@graph"].is_a?(Array)
    item["@graph"].each do |graph_item|
      errors.concat(validate(graph_item))
    end
  end

  type = item.is_a?(Hash) ? item["@type"] : nil
  return errors if type.nil?

  schema = @schemas[type.to_s]
  return errors if schema.nil?

  JSON::Validator.fully_validate(schema, item, errors_as_objects: true).each do |error|
    errors << {
      field: error[:fragment].to_s.sub("#/", ""),
      issue: error[:message],
      type: type
    }
  end

  errors
rescue JSON::Schema::ValidationError => error
  [{field: "unknown", issue: error.message, type: type}]
end