Trait Extractor 

pub trait Extractor {
    type Output;

    // Required method
    fn get(self) -> Self::Output;
}

An Extractor indicates a specific direction to process an [ProtocolEnvelope]. Extractor implementations are available in crate::protocol::extractors

Required Associated Types

type Output

The output this extractor will produce

Required Methods

fn get(self) -> Self::Output

Get the output of the extraction

Implementors

impl Extractor for BytesExtractor

type Output = Vec<u8>

impl Extractor for CursorExtractor

type Output = Result<Cursor, ConversionError>

impl Extractor for DependsOnExtractor

type Output = Option<GlobalCursor>

impl Extractor for GroupMessageExtractor

type Output = Result<GroupMessage, ExtractionError>

impl Extractor for IdentityUpdateExtractor

type Output = (String, IdentityUpdateLog)

impl Extractor for KeyPackagesExtractor

type Output = Vec<KeyPackage>

impl Extractor for MessageMetadataExtractor

type Output = Vec<Option<GroupMessageMetadata>>

impl Extractor for MlsDataExtractor

type Output = Result<Vec<u8>, ConversionError>

impl Extractor for OrphanExtractor

type Output = Result<OrphanedEnvelope, ExtractionError>

impl Extractor for TimestampExtractor

type Output = Option<DateTime<Utc>>

impl Extractor for TopicExtractor

type Output = Result<Topic, TopicExtractionError>

impl Extractor for V3GroupMessageExtractor

type Output = Result<Option<GroupMessage>, ConversionError>

impl Extractor for V3WelcomeMessageExtractor

type Output = Result<WelcomeMessage, ConversionError>

impl Extractor for WelcomeMessageExtractor

type Output = Result<WelcomeMessage, ExtractionError>

impl<'a, Envelope, E> Extractor for SequencedExtractor<Envelope, E>

where E: Extractor + EnvelopeVisitor<'a> + Default, Envelope: ProtocolEnvelope<'a>, EnvelopeError: From<<E as EnvelopeVisitor<'a>>::Error>,

type Output = Result<Vec<<E as Extractor>::Output>, EnvelopeError>

impl<'a, Envelopes, E> Extractor for CollectionExtractor<Envelopes, E>

where Envelopes: EnvelopeCollection<'a> + IntoIterator, <Envelopes as IntoIterator>::Item: ProtocolEnvelope<'a>, E: Extractor + EnvelopeVisitor<'a>, EnvelopeError: From<<E as EnvelopeVisitor<'a>>::Error>,

type Output = Result<<E as Extractor>::Output, EnvelopeError>