Amazonka.Glue.Types.Classifier

Documentation

data Classifier

Classifiers are triggered during a crawl task. A classifier checks whether a given file is in a format it can handle. If it is, the classifier creates a schema in the form of a StructType object that matches that data format.

You can use the standard classifiers that Glue provides, or you can write your own classifiers to best categorize your data sources and specify the appropriate schemas to use for them. A classifier can be a grok classifier, an XML classifier, a JSON classifier, or a custom CSV classifier, as specified in one of the fields in the Classifier object.

See: newClassifier smart constructor.

Constructors

Classifier'

Fields

• csvClassifier :: Maybe CsvClassifier

  A classifier for comma-separated values (CSV).

• grokClassifier :: Maybe GrokClassifier

  A classifier that uses grok.

• jsonClassifier :: Maybe JsonClassifier

  A classifier for JSON content.

• xMLClassifier :: Maybe XMLClassifier

  A classifier for XML content.

Instances

FromJSON Classifier

Defined in Amazonka.Glue.Types.Classifier

Methods

parseJSON :: Value -> Parser Classifier

parseJSONList :: Value -> Parser [Classifier]

Generic Classifier

Defined in Amazonka.Glue.Types.Classifier

Associated Types

type Rep Classifier :: Type -> Type

Methods

from :: Classifier -> Rep Classifier x

to :: Rep Classifier x -> Classifier

Read Classifier

Defined in Amazonka.Glue.Types.Classifier

Methods

readsPrec :: Int -> ReadS Classifier

readList :: ReadS [Classifier]

readPrec :: ReadPrec Classifier

readListPrec :: ReadPrec [Classifier]

Show Classifier

Defined in Amazonka.Glue.Types.Classifier

Methods

showsPrec :: Int -> Classifier -> ShowS

show :: Classifier -> String

showList :: [Classifier] -> ShowS

NFData Classifier

Defined in Amazonka.Glue.Types.Classifier

Methods

rnf :: Classifier -> ()

Eq Classifier

Defined in Amazonka.Glue.Types.Classifier

Methods

(==) :: Classifier -> Classifier -> Bool

(/=) :: Classifier -> Classifier -> Bool

Hashable Classifier

Defined in Amazonka.Glue.Types.Classifier

Methods

hashWithSalt :: Int -> Classifier -> Int

hash :: Classifier -> Int

type Rep Classifier

Defined in Amazonka.Glue.Types.Classifier

type Rep Classifier = D1 ('MetaData "Classifier" "Amazonka.Glue.Types.Classifier" "amazonka-glue-2.0-7miPWwBHdfn8N8SvbpLgE0" 'False) (C1 ('MetaCons "Classifier'" 'PrefixI 'True) ((S1 ('MetaSel ('Just "csvClassifier") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe CsvClassifier)) :*: S1 ('MetaSel ('Just "grokClassifier") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe GrokClassifier))) :*: (S1 ('MetaSel ('Just "jsonClassifier") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe JsonClassifier)) :*: S1 ('MetaSel ('Just "xMLClassifier") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe XMLClassifier)))))

newClassifier :: Classifier

Create a value of Classifier with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:csvClassifier:Classifier', classifier_csvClassifier - A classifier for comma-separated values (CSV).

$sel:grokClassifier:Classifier', classifier_grokClassifier - A classifier that uses grok.

$sel:jsonClassifier:Classifier', classifier_jsonClassifier - A classifier for JSON content.

$sel:xMLClassifier:Classifier', classifier_xMLClassifier - A classifier for XML content.

classifier_csvClassifier :: Lens' Classifier (Maybe CsvClassifier)

A classifier for comma-separated values (CSV).

classifier_grokClassifier :: Lens' Classifier (Maybe GrokClassifier)

A classifier that uses grok.

classifier_jsonClassifier :: Lens' Classifier (Maybe JsonClassifier)

A classifier for JSON content.

classifier_xMLClassifier :: Lens' Classifier (Maybe XMLClassifier)

A classifier for XML content.