pdk-core 1.7.0-alpha.0

PDK Core
Documentation 
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// Copyright (c) 2025, Salesforce, Inc.,
// All rights reserved.
// For full license text, see the LICENSE.txt file

//! Policy context related APIs to access Flex policy data.

use crate::host::property::PropertyAccessor;
use crate::policy_context::metadata::PolicyMetadata;
use std::rc::Rc;

pub mod api;
pub mod authentication;
#[doc(hidden)]
pub mod metadata;
pub mod policy_violation;
#[doc(hidden)]
pub mod static_policy_context_cache;

const AUTHENTICATION_PROPERTY: &[&str] = &["authentication"];

/// An interface of the Flex Policy Context.
///
/// PolicyContext is responsible for
/// * Access policy metadata,
/// * Manage authentication data.
pub trait PolicyContext {
    /// Returns the policy metadata.
    fn policy_metadata(&self) -> Rc<PolicyMetadata>;

    /// Returns a property accessor
    fn connection_properties(&self) -> &dyn PropertyAccessor;
}

impl dyn PolicyContext {
    #[allow(clippy::should_implement_trait)]
    pub fn default() -> &'static dyn PolicyContext {
        &impls::Host
    }
}

mod impls {
    use super::{metadata::PolicyMetadata, PolicyContext};
    use crate::host::property::PropertyAccessor;
    use crate::policy_context::static_policy_context_cache::StaticPolicyContextCache;
    use std::rc::Rc;

    pub(crate) struct Host;

    impl PolicyContext for Host {
        fn policy_metadata(&self) -> Rc<PolicyMetadata> {
            Rc::clone(&StaticPolicyContextCache::read_metadata())
        }

        fn connection_properties(&self) -> &dyn PropertyAccessor {
            <dyn PropertyAccessor>::default()
        }
    }
}