Crate zerodds_web 

OMG DDS-WEB 1.0 — Web-Enabled DDS Object Model + REST PSM.

Crate zerodds-web. Safety classification: STANDARD. Spec formal/2014-12-01 (docs/standards/cache/omg/zerodds-web-1.0.pdf).

Scope

We implement the WebDDS object model (Spec §7) and the REST PSM (Spec §8.3) as a pure-Rust no_std+alloc library:

• WebDDS::Root singleton + Application + Client + AccessController + DomainParticipant (§7.3 object model).
• ReturnStatus with all spec codes (§7.3.1 + §8.3.2 mapping to HTTP status).
• RestRoute parser for all URI patterns from Spec §8.3.1 Tab 4 + §8.3.3 Tab 5 (all 30+ routes with parameter extraction).
• Representation XML element-name registry (Spec §8.3.4 Tab 6).
• Headers HTTP request/response header set (Spec §8.3.5 Tab 7+8).
• SessionId authenticated-session tracking (§7.3.1.1).

What is not covered

• HTTP server implementation — caller layer (typically axum/hyper); this crate provides routing tables + status mapping, the caller binds to the HTTP stack.
• XML body serialization — caller layer with the crates/xml/ loader + DDS-XTYPES type-definition reader; the XML element-name registry here provides the wire tags.
• WebSocket push for DataReader notifications — see crates/websocket-bridge/; the caller wires it via a listener callback from crates/dcps/.
• SOAP/WSDL-Platform (Spec §8.4) — n/a (REST ist mandatory, SOAP is optional + rarely used).

Re-exports

pub use access_control::Decision;

pub use access_control::Operation;

pub use access_control::Permissions;

pub use access_control::Rule;

pub use bridge::BackendError;

pub use bridge::BackendResult;

pub use bridge::DdsBackend;

pub use bridge::enforce;

pub use headers::REQUEST_API_KEY;

pub use headers::RequestHeaders;

pub use headers::ResponseHeaders;

pub use model::Application;

pub use model::Client;

pub use model::DomainParticipant;

pub use model::WebDdsRoot;

pub use representation::ContentType;

pub use representation::RepresentationKind;

pub use representation::element_name;

pub use rest::REST_PREFIX;

pub use rest::RestMethod;

pub use rest::RestRoute;

pub use rest::parse_route;

pub use sample_selector::BoolOp;

pub use sample_selector::CompareOp;

pub use sample_selector::FilterExpression;

pub use sample_selector::InstanceStateMatch;

pub use sample_selector::Literal;

pub use sample_selector::MetadataExpression;

pub use sample_selector::ParseError as SampleSelectorParseError;

pub use sample_selector::SampleSelector;

pub use sample_selector::SampleStateMatch;

pub use sample_selector::ViewStateMatch;

pub use sample_selector::parse_sample_selector;

pub use session::SessionId;

pub use status::ReturnStatus;

pub use status::http_status_for;

Modules

access_control

DDS-WEB Access Control Decision Engine — Spec §7.3.

bridge

DDS-WEB bridge to the DDS-DCPS public API — Spec §7.4.

headers

HTTP-Headers — Spec §8.3.5 Tab 7 + Tab 8.

model

WebDDS Object Model — Spec §7.

representation

XML Object-Representation Tags — Spec §8.3.4 Tab 6.

rest

REST-PSM URI-Routing — Spec §8.3.1 + §8.3.3.

sample_selector

DDS-WEB Sample Selector BNF Parser — Spec §7.4.8.

session

SessionId Authentifizierte Session — Spec §7.3.1.1.

status

ReturnStatus + HTTP-Status-Mapping — Spec §7.3 + §8.3.2.