v0.6.0-pre.5

Changed

• Upgrade to open62541 released version 1.4.1. This removes the workaround introduced in 0.6.0-pre.3, it is no longer necessary.

v0.6.0-pre.4

Changed

• Coerce empty arrays of ua::ExtensionObject into the requested data type. This mirrors the auto-unwrapping behavior of open62541 version 1.4.

v0.6.0-pre.3

Added

• Add logical OR combinator for ua::BrowseResultMask and ua::NodeClassMask.
• Add const ua::NodeClassMask variants to initialize masks.
• Add serde serialization for ua::Array and ua::Variant with array value.
• Add constructors ua::Variant::scalar() and ua::Variant::array().
• Add constructor ua::DataValue::new().
• Add helper method ua::Array::into_array() for conversion into native Rust array.

Changed

• Breaking: Remove associated functions for enum data types deprecated in 0.5.0, e.g. ua::AttributedId::value(). Use uppercase constants ua::AttributedId::VALUE instead.
• Breaking: Split Server::new() and ServerBuilder::build() result type into Server and ServerRunner to allow interacting with server's data tree while server is running.
• Upgrade to open62541 released version 1.4.0.
• Reintroduce internal mutex in AsyncClient to work around issue in open62541 version 1.4.

Fixed

• Avoid memory leak when calling ua::Variant::with_scalar() multiple times on the same value.

v0.6.0-pre.2

Added

• Add basic support for creating OPC UA server with static nodes (#89).

v0.6.0-pre.1

Added

• Add ua::StatusCode::is_uncertain(), is_bad() for checking status code severity (#63).
• Add ua::StatusCode::name() to get human-readable representation of status code (#93).
• Add support for ua::Argument data type and basic support for ua::ExtensionObject (#71).
• Add Debug implementation for ua::Array<T> data types.
• Add ValueType enum to check ua::Variant without unwrapping (also ua::Argument).
• Add tracing log messages when processing service requests and responses (#80).
• Add methods to ClientBuilder to set response timeout, client description, and connectivity check interval (#81).

Changed

• Breaking: Return Result instead of Option for references in AsyncClient::browse_many() and browse_next() (#59, #60).
• Breaking: Return Result wrapping ua::DataValue from AsyncClient::read_attributes() (#61).
• Breaking: Move ua::VariantValue and ua::ScalarValue to top-level export outside ua.
• Breaking: Remove ua::ArrayValue for now (until we have a better interface).
• Breaking: Return output arguments without Option from AsyncClient::call_method() (#79).
• Breaking: Remove misleading FromStr trait implementation and offer ua::String::new() instead.
• Breaking: Upgrade to open62541 version 1.4 (#82). This affects the API of this crate as follows:
  • Automatically unwrap ua::ExtensionObject arrays inside ua::Variant.
• Breaking: Remove cycle_time parameter from AsyncClient's interface (#91). The relevance of this parameter has been reduced by the upgrade to open62541 version 1.4.

Fixed

• Return browsing error instead of empty references list from AsyncClient::browse() (#60).
• Return reading error instead of unset ua::DataValue from AsyncClient::read_value() and read_attribute() (#61).
• Check only severity in ua::StatusCode::is_good() (#63). Previously this would be an exact comparison to ua::StatusCode::GOOD.
• No longer panic when unwrapping ua::Variant with array value.
• Treat invalid references array as empty in ua::BrowseResult on successful request (#77).
• Handle graceful disconnection when dropping synchronous Client.
• Include subscription ID in request when deleting monitored items (#93).

v0.5.0

Added

• Allow reading node attributes with AsyncClient::read_attribute() and read_attributes()
• Allow continuing browsing from continuation points with AsyncClient::browse_next()

Changed

• Provide uppercase variants for enum data types, e.g. ua::AttributedId::VALUE. This deprecates the associated functions such as ua::AttributedId::value() formerly used for this purpose.
• Breaking: Return continuation points from AsyncClient::browse() and browse_many() (when not all references were returned, to be used with AsyncClient::browse_next())
• Breaking: Simplify argument type node_ids: &[impl Borrow<ua::NodeId>] to &[ua::NodeId] in AsyncClient::browse_many()
• Rename ua::String::as_slice() to as_bytes(). Deprecate the former method.

v0.4.0

Added

• Fallible conversion from time::OffsetDateTime to ua::DateTime.

Changed

• Breaking: Renamed ua::DateTime::as_datetime() to ua::DateTime::to_utc().
• Use RFC 3339 variant of ISO 8601 for ua::DateTime serialization.

v0.3.0

Added

• Allow setting secure channel lifetime and requested session timeout in ClientBuilder.
• Allow fetching current client state to periodically check for disconnect.

Changed

• Breaking: Remove default Display implementation for most ua wrapper types (using the Debug implementation is more appropriate in these cases).

Fixed

• Fix handling of empty and invalid strings.
• Include values in log messages (#22).

v0.2.2

Changed

• Fix typo in README file and changelog.

v0.2.1

Added

• First public release.