MetaFetch class final

Read Document and find all metadata tags to generate corresponded MetaInfo.

At the same time, it manages all MetaPropertyParser according to MetaPropertyParser.propertyNamePrefix and will be refer them for finding matched MetaPropertyParser.

Constructors

MetaFetch()

Get a instance of MetaFetch.

factory

Properties

allowRedirect ↔ bool

Allow MetaFetch fetch redirected Uri's metadata instead of provided one.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

primaryPrefix ↔ String?

Get which prefix of property will be overriden when parse.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

buildMetaInfo(Document htmlDocument) → MetaInfo

Construct MetaInfo with given Document.

deregister(String prefix) → bool

Remove MetaPropertyParser with corresponded prefix.

fetchFromHttp(Uri url) → Future<MetaInfo>

Retrive MetaInfo from HTTP request from url.

hasBeenRegistered(Object identifier) → bool

Determine the identifier is registered or not.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

register(MetaPropertyParser parser) → bool

Register parser into MetaFetch.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

userAgentString ↔ String

Define a value of user agent when making request in fetchFromHttp.

getter/setter pair

Static Methods

forTest() → MetaFetch

A dedicated MetaFetch which ignore content type condition that allowing parse to HTML Document.

Constants

DEFAULT_USER_AGENT_STRING → const String

Default request user agent value.