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use std::collections::HashMap;
use serde_json::{json, Value as JsonValue};
use crate::error_recording::{record_error, ErrorType};
use crate::event_database::RecordedEventData;
use crate::metrics::MetricType;
use crate::util::truncate_string_at_boundary_with_error;
use crate::CommonMetricData;
use crate::Glean;
const MAX_LENGTH_EXTRA_KEY_VALUE: usize = 100;
#[derive(Clone, Debug)]
pub struct EventMetric {
meta: CommonMetricData,
allowed_extra_keys: Vec<String>,
}
impl MetricType for EventMetric {
fn meta(&self) -> &CommonMetricData {
&self.meta
}
fn meta_mut(&mut self) -> &mut CommonMetricData {
&mut self.meta
}
}
impl EventMetric {
pub fn new(meta: CommonMetricData, allowed_extra_keys: Vec<String>) -> Self {
Self {
meta,
allowed_extra_keys,
}
}
pub fn record<M: Into<Option<HashMap<i32, String>>>>(
&self,
glean: &Glean,
timestamp: u64,
extra: M,
) {
if !self.should_record(glean) {
return;
}
let extra = extra.into();
let extra_strings: Option<HashMap<String, String>> = if let Some(extra) = extra {
if extra.is_empty() {
None
} else {
let mut extra_strings = HashMap::new();
for (k, v) in extra.into_iter() {
match self.allowed_extra_keys.get(k as usize) {
Some(k) => extra_strings.insert(
k.to_string(),
truncate_string_at_boundary_with_error(
glean,
&self.meta,
v,
MAX_LENGTH_EXTRA_KEY_VALUE,
),
),
None => {
let msg = format!("Invalid key index {}", k);
record_error(glean, &self.meta, ErrorType::InvalidValue, msg, None);
return;
}
};
}
Some(extra_strings)
}
} else {
None
};
glean
.event_storage()
.record(glean, &self.meta, timestamp, extra_strings);
}
pub fn test_has_value(&self, glean: &Glean, store_name: &str) -> bool {
glean.event_storage().test_has_value(&self.meta, store_name)
}
pub fn test_get_value(
&self,
glean: &Glean,
store_name: &str,
) -> Option<Vec<RecordedEventData>> {
glean.event_storage().test_get_value(&self.meta, store_name)
}
pub fn test_get_value_as_json_string(&self, glean: &Glean, store_name: &str) -> String {
match self.test_get_value(glean, store_name) {
Some(value) => json!(value),
None => json!(JsonValue::Null),
}
.to_string()
}
}