Enum CloudEventFields

pub enum CloudEventFields {
    Id,
    Source,
    SpecVersion,
    EventType,
    Subject,
    Time,
    DataContentType,
    DataSchema,
}

Enum representing the cloud event fields.

Variants

Id

Identifies the event. Producers MUST ensure that source + id is unique for each distinct event. If a duplicate event is re-sent (e.g. due to a network error) it MAY have the same id. Consumers MAY assume that Events with identical source and id are duplicates.

Source

Identifies the context in which an event happened. Often this will include information such as the type of the event source, the organization publishing the event or the process that produced the event. The exact syntax and semantics behind the data encoded in the URI is defined by the event producer.

SpecVersion

The version of the CloudEvents specification which the event uses. This enables the interpretation of the context. Compliant event producers MUST use a value of 1.0 when referring to this version of the specification.

EventType

Describes the type of event related to the originating occurrence. Often this attribute is used for routing, observability, policy enforcement, etc. The format of this is producer defined and might include information such as the version of the type

Subject

Identifies the subject of the event in the context of the event producer (identified by source). In publish-subscribe scenarios, a subscriber will typically subscribe to events emitted by a source, but the source identifier alone might not be sufficient as a qualifier for any specific event if the source context has internal sub-structure.

Time

Timestamp of when the occurrence happened. If the time of the occurrence cannot be determined then this attribute MAY be set to some other time (such as the current time) by the CloudEvents producer, however all producers for the same source MUST be consistent in this respect.

DataContentType

Content type of data value. This attribute enables data to carry any type of content, whereby format and encoding might differ from that of the chosen event format.

DataSchema

Identifies the schema that data adheres to. Incompatible changes to the schema SHOULD be reflected by a different URI.

Implementations

impl CloudEventFields

pub fn validate(&self, value: &str, spec_version: &str) -> Result<(), String>

Validates that the cloud event field is valid based on the spec version.

Errors

Returns a string containing the error message if either the field or spec version are invalid.

Panics

If any regex fails to compile which is impossible given that the regex is pre-defined.

Trait Implementations

impl Clone for CloudEventFields

fn clone(&self) -> CloudEventFields

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CloudEventFields

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CloudEventFields

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromStr for CloudEventFields

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for CloudEventFields

fn eq(&self, other: &CloudEventFields) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for CloudEventFields

impl StructuralPartialEq for CloudEventFields