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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
use std::collections::HashMap;
use serde::{Deserialize, Serialize};
use serde_json::{json, Map as JsonMap, Value as JsonValue};
/// Deserialized experiment data.
#[derive(Clone, Serialize, Deserialize, Debug, PartialEq, Eq)]
pub struct RecordedExperiment {
/// The experiment's branch as set through [`set_experiment_active`](crate::glean_set_experiment_active).
pub branch: String,
/// Any extra data associated with this experiment through [`set_experiment_active`](crate::glean_set_experiment_active).
/// Note: `Option` required to keep backwards-compatibility.
pub extra: Option<HashMap<String, String>>,
}
impl RecordedExperiment {
/// Gets the recorded experiment data as a JSON value.
///
/// For JSON, we don't want to include `{"extra": null}` -- we just want to skip
/// `extra` entirely. Unfortunately, we can't use a serde field annotation for this,
/// since that would break bincode serialization, which doesn't support skipping
/// fields. Therefore, we use a custom serialization function just for JSON here.
pub fn as_json(&self) -> JsonValue {
let mut value = JsonMap::new();
value.insert("branch".to_string(), json!(self.branch));
if self.extra.is_some() {
value.insert("extra".to_string(), json!(self.extra));
}
JsonValue::Object(value)
}
}