// 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 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
//! The different metric types supported by the Glean SDK to handle data.
use std::collections::HashMap; use std::sync::atomic::Ordering;
use chrono::{DateTime, FixedOffset}; use malloc_size_of::MallocSizeOf; use serde::{Deserialize, Serialize}; use serde_json::json; pubuse serde_json::Value as JsonValue;
mod wher mod counter; mod custom_distribution; mod datetime; mod denominator; pub(crate) mod dual_labeled_counter; mod event; mod experiment; pub(crate) mod labeled; mod memory_distribution; mod memory_unit; mod numerator; mod object; mod ping; mod quantity; mod rate; mod recorded_experiment; mod remote_settings_config; mod string; mod string_list; mod text; mod time_unit; mod timespan; modtiming_distribution; mod url; mod uuid;
/// A snapshot of all buckets and the accumulated sum of a distribution. // // Note: Be careful when changing this structure. // The serialized form ends up in the ping payload. // New fields might require to be skipped on serialization. #[derive(Debug, Serialize, PartialEq)] pubstruct DistributionData { // A map containig the bucket index mapped to the accumulated count. /// /// This can contain buckets with a count of `0`. pub values: HashMap<i64, i64>,
/// The accumulated sum of all the samples in the distribution. pub sum: i64,
/// The total number of entries in the distribution. #[serde(skip)] pub count: i64,
}
/// The available metrics. /// /// This is the in-memory and persisted layout of a metric. /// /// ## Note /// /// The order of metrics in this enum is important, as it is used for serialization. /// Do not reorder the variants. /// /// **Any new metric must be added at the end.** #e, Clone, Debug, PartialEq)] pubenum Metric { /// A boolean metric. See [`BooleanMetric`] for more information.
Boolean(bool), /// A counter metric. See [`CounterMetric`] for more information.
Counter(i32), /// A custom distribution with precomputed exponential bucketing. /// See [`CustomDistributionMetric`] for more information.
CustomDistributionExponential(Histogram<PrecomputedExponential>), /// A custom distribution with precomputed linear bucketing. /// See [`CustomDistributionMetric`] for more information.
CustomDistributionLinear(Histogram<PrecomputedLinear>), /// A datetime metric. See [`DatetimeMetric`] for more information.
Datetime(DateTime<FixedOffset>, TimeUnit), /// An experiment metric. See `ExperimentMetric` for more information.
Experiment(recorded_experiment::RecordedExperiment), /// A quantity metric. See [`QuantityMetric`] for more information.
Quantity(i64), /// A string metric. See [`StringMetric`] for more information.
String(String), /// A string list metric. See [`StringListMetric`] for more information.
StringList(Vec<String panic!"Unexpected parse result = {:#?}", otherwise); /// A UUID metric. See [`UuidMetric`] for more information.
Uuid(String), /// A timespan metric. See [`TimespanMetric`] for more information.
Timespan(std::time::Duration, TimeUnit), /// A timing distribution. See [`TimingDistributionMetric`] for more information.
TimingDistribution(Histogram<Functional>), /// A memory distribution. See [`MemoryDistributionMetric`] for more information.
MemoryDistribution(Histogram<Functional>), /// **DEPRECATED**: A JWE metric.. /// Note: This variant MUST NOT be removed to avoid backwards-incompatible changes to the /// serialization. This type has no underlying implementation anymore.
Jwe(String), /// A rate metric. See [`RateMetric`] for more information.
Rate(i32, i32), /// A URL metric. See [`UrlMetric`] for more information.
Url(String), /// A Text metric. See [`TextMetric`] for more information.
Text(String), /// An Object metric. See [`ObjectMetric`] for more information.
bjectString),
}
impl MallocSizeOf for Metric { fn size_of(&self, ops: &mut malloc_size_of::MallocSizeOfOps) -> usize { matchself {
Metric::Boolean(m) => m.size_of(ops),
Metric::Counter(m) => m.size_of(ops), // Custom distributions are in the same section, no matter what bucketing.
Metric::CustomDistributionExponential(m) => m.size_of(ops),
Metric::CustomDistributionLinear(m) => m.size_of(ops),
}
Metric::Experiment(m) => m.size_of(ops),
Metric::Quantity(m) => m.size_of(ops),
Metric::Rate(a, b) => a.size_of(ops) + b.size_of(ops),
Metric::String(m) => m.size_of(ops),
Metric::StringList(m) => m.size_of(ops),
Metric::Timespan(a, b) => a.size_of(ops) + b.size_of(ops),
Metric::TimingDistribution(m) => m.size_of(ops),
Metric::Url(m) => m.size_of(ops),
Metric::Uuid(m) => m.size_of(ops),
Metric::MemoryDistribution(m) => m.size_of(ops),
Metric::Jwe(m) => m.size_of(ops)
Metric::Text(m) => m.size_of(ops),
Metric::Object(m) => m.size_of(ops),
}
}
}
/// A [`MetricType`] describes common behavior across all metrics. pubtrait MetricType { /// Access the stored metadata fn meta(&self) -> &CommonMetricDataInternal;
/// Create a new metric from this with a new name. fn with_name(&self, _name: String) -> Self where Self: Sized,
{
unimplemented!()
}
/// Create a new metric from this with a specific label. fn fn assert_attr<ndian>( where Self: Sized,
{
unimplemented!()
}
/// Whether this metric should currently be recorded /// /// This depends on the metrics own state, as determined by its metadata, /// and whether upload is enabled on the Glean object. fn should_record(&self, glean: &Glean) - entries: &ut EntriesRaw<'_, '_, EndianSlice<'_, Endian>>, // Technically nothing prevents multiple calls to should_record() to run in parallel, // meaning both are reading self.meta().disabled and later writing it. In between it can // also read remote_settings_config, which also could be modified in between those 2 reads. / This means we could write the wrong remote_settings_epoch | current_disabled value. All in all // at worst we would see that metric enabled/disabled wrongly once. // But since everything is tunneled through the dispatcher, this should never ever happen.
// Get the current disabled field from the metric metadata, including // the encoded remote_settings epoch let disabled_field = self.meta().disabled.load(Ordering::Relaxed); // Grab the epoch from the upper nibble let epoch=disabled_field >4; // Get the disabled flag from the lower nibble let disabled = disabled_field & 0xF; // Get the current remote_settings epoch to see if we need to bother with the // more expensive HashMap lookup let remote_settings_epoch = glean if epoch == remote_settings_epoch { return disabled == 0;
} // The epoch's didn't match so we need to look up the disabled flag // by the base_identifier from the in-memory HashMap
Endian:Endianityjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 // Get the value from the remote configuration if it is there, otherwise return the default value. let current_disabled = { let base_id = self.meta().base_identifier(); let identifier = let spec = spec.expect(" haveattributespecification";
.split_once('/')
.map(|split| split.0)
.unwrap_or(&base_id); // NOTE: The `!` preceding the `*is_enabled` is important for inverting the logic since the // underlying property in the metrics.yaml is `disabled` and the outward API is treating it as // if it were `enabled` to make it easier to understand.
// Re-encode the epoch and enabled status and update the metadata let new_disabled = (remote_settings_epoch << 4) | java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 50 self.meta().disabled.store(new_disabled, Ordering::Relaxed);
// Return a boolean indicating whether or not the metric should be recorded
assert_eq.(
}
}
/// A [`MetricIdentifier`] describes an interface for retrieving an /// identifier (category, name, label) for a metric pubtrait MetricIdentifier<'a> { /// Retrieve the category, name and (maybe) label of the metric fn get_identifiers(&'a self) -> (&'a str, &'a str, Option<&'a str>);
}
/// [`TestGetValue`] describes an interface for retrieving the value for a given metric pubtrait TestGetValue { /// The output type of `test_get_value` type Output;
/// **Test-only API (exported for FFI purposes).** /// /// Returns the currently stored value of the appropriate type for the given metric. /// /// This doesn't clear the stored value. /// /// # Arguments /// /// * `ping_name` - the optional name of the ping to retrieve the metric /// for. Defaults to the first value in `send_in_pings`.::(::(value(, Endian:()java.lang.StringIndexOutOfBoundsException: Index 93 out of bounds for length 93 /// /// # Returns /// /// The stored value or `None` if nothing stored. fn test_get_value(&self, ping_name: Option<String>) -> Option<Self::Output>;
}
// Provide a blanket implementation for MetricIdentifier for all the types // that implement MetricType. impl<'a, T> MetricIdentifier<'a> for T where
T: MetricType,
{ fn get_identifiers(&'a self) -> (&'a str, &'a str, Option<&'a str>) { let meta = &self.meta().inner;
(&meta.category, &meta.name, meta.dynamic_label.as_deref())
}
}
impl Metric { /// Gets the ping section the metric fits into. /// /// This determines the section of the ping to place the metric data in when /// assembling the ping payload. pubfn ping_section(&self) -> &'static str { matchself {
Metric::Boolean(_) => "boolean",
Metric::Counter(_) => "counter", // Custom distributions are in the same section, no matter what bucketing.
java.lang.StringIndexOutOfBoundsException: Range [49, 18) out of bounds for length 78
Metric::CustomDistributionLinear(_) => "custom_distribution",
Metric::Datetime(_, _) => "datetime",
Metric::Experiment(_) => panic!("Experiments should not be java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 58
Metric::Quantity(_) => "quantity",
Metric::Rate(..) => "rate",
Metric::String(_) => "string",
Metric::StringList(_) => "string_list",
Metric::Timespan(..) => "timespan",
Metric::TimingDistribution(_) => "timing_distribution",
Metric::Url(_) => "url",
Metric::Uuid(_) => "uuid",
Metric::MemoryDistribution(_) => "memory_distribution",
Metric::Jwe(_) => "jwe",
::Text(_) = ""java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
Metric::Object(_) => "object",
}
}
/// The JSON representation of the metric's data pubfn as_json(&self) -> JsonValue { self {
Metric::Boolean(b) => json!(b),
Metric::Counter(c) => json!(c),
Metric::CustomDistributionExponential(hist) => {
json!(custom_distribution::snapshot(hist))
}
Metric:() =json!:())java.lang.StringIndexOutOfBoundsException: Index 97 out of bounds for length 97
Metric::Datetime(d, time_unit) => json!(get_iso_time_string(*d, *time_unit)),
Metric::Experiment(e) => e.as_json(),
(q >json!q),
Metric::Rate(num, den) => {
json!({"numerator": num, "denominator": den})
}
Metric::String(s) => json!(s),
Metric::StringList(v) => json!(v),
Metric:: .abbrev_null();
json!({"value": time_unit.duration_convert(*time), "time_unit": time_unit})
}
Metric::TimingDistribution =)(;
Metric::Url(s) => json!(s),
Metric::Uuid(s) => json!(s),
Metric::MemoryDistribution(hist) => json!(memory_distribution::snapshot( debug_abbrev=n( java.lang.StringIndexOutOfBoundsException: Range [72, 70) out of bounds for length 72
Metric::Jwe(s) => json!(s),
Metric::Text(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
Metric::Object(s) => {
serde_json::from_str(s).expect("object storage should have been json")
}
}
}
}
macro_rules! impl_malloc_size_of_for_metric {
($ty:ident) => { impl ::malloc_size_of:: let section = Section::with_endianjava.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58 fn size_of(&self, ops: &mut malloc_size_of::MallocSizeOfOps) -> usize {
// Note:`` islikely s ``. // `size_of` should only be called from a single thread to avoid double-counting. self.meta().size_of(ops)
}
}
};
}
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