Implement the text metric for Kotlin and Swift

docs/user/reference/metrics/text.md

@@ -18,13 +18,54 @@ Sets a text metric to a specific value.
 
 {{#include ../../../shared/tab_header.md}}
 
-<div data-lang="Kotlin" class="tab"></div>
+<div data-lang="Kotlin" class="tab">
 
-<div data-lang="Java" class="tab"></div>
+```Kotlin
+import org.mozilla.yourApplication.GleanMetrics.Article
 
-<div data-lang="Swift" class="tab"></div>
+Article.content.set(extractedText)
+```
+
+</div>
+
+<div data-lang="Java" class="tab">
+
+```Java
+import org.mozilla.yourApplication.GleanMetrics.Article;
+
+Article.INSTANCE.content().set(extractedText);
+```
+
+</div>
+
+<div data-lang="Swift" class="tab">
+
+```Swift
+Article.content.set(extractedText)
+```
+
+</div>
+
+<div data-lang="Python" class="tab">
+
+```Python
+from glean import load_metrics
+metrics = load_metrics("metrics.yaml")
+
+metrics.article.content.set(extracted_text)
+```
+
+</div>
+
+<div data-lang="Rust" class="tab">
 
-<div data-lang="Python" class="tab"></div>
+```Rust
+use glean_metrics::article;
+
+article::conent.set(extracted_text);
+```
+
+</div>
 
 <div data-lang="JavaScript" class="tab">
 
@@ -35,8 +76,6 @@ article.content.set(extractedText);
 ```
 </div>
 
-<div data-lang="Rust" class="tab"></div>
-
 <div data-lang="Firefox Desktop" class="tab"></div>
 
 {{#include ../../../shared/tab_footer.md}}
@@ -58,17 +97,60 @@ article.content.set(extractedText);
 
 ### `testGetValue`
 
-Gets the recorded value for a given text metric.
+Gets the recorded value for a given text metric.  
+Returns the string if data is stored.  
+Returns `null` if no data is stored.
 
 {{#include ../../../shared/tab_header.md}}
 
-<div data-lang="Kotlin" class="tab"></div>
+<div data-lang="Kotlin" class="tab">
+
+```Kotlin
+import org.mozilla.yourApplication.GleanMetrics.Article
+
+assertEquals("some content", Article.content.testGetValue())
+```
+
+</div>
+
+<div data-lang="Java" class="tab">
+
+```Java
+import org.mozilla.yourApplication.GleanMetrics.Article;
+
+assertEquals("some content", Article.INSTANCE.content().testGetValue());
+```
+
+</div>
+
+<div data-lang="Swift" class="tab">
 
-<div data-lang="Java" class="tab"></div>
+```Swift
+XCTAssertEqual("some content", Article.content.testGetValue())
+```
+
+</div>
 
-<div data-lang="Swift" class="tab"></div>
+<div data-lang="Python" class="tab">
 
-<div data-lang="Python" class="tab"></div>
+```Python
+from glean import load_metrics
+metrics = load_metrics("metrics.yaml")
+
+assert "some content" == metrics.article.content.test_get_value()
+```
+
+</div>
+
+<div data-lang="Rust" class="tab">
+
+```Rust
+use glean_metrics::article;
+
+assert_eq!("some content", article::content.test_get_value(None).unwrap());
+```
+
+</div>
 
 <div data-lang="JavaScript" class="tab">
 
@@ -80,8 +162,6 @@ assert.strictEqual("some content", await article.content.testGetValue());
 
 </div>
 
-<div data-lang="Rust" class="tab"></div>
-
 <div data-lang="Firefox Desktop" class="tab"></div>
 
 {{#include ../../../shared/tab_footer.md}}
@@ -92,13 +172,74 @@ Gets number of errors recorded for a given text metric.
 
 {{#include ../../../shared/tab_header.md}}
 
-<div data-lang="Kotlin" class="tab"></div>
+<div data-lang="Kotlin" class="tab">
+
+```Kotlin
+import org.mozilla.yourApplication.GleanMetrics.Article
+
+// Was the string truncated, and an error reported?
+assertEquals(
+    0,
+    Article.content.testGetNumRecordedErrors(ErrorType.INVALID_OVERFLOW)
+)
+```
+
+</div>
+
+<div data-lang="Java" class="tab">
+
+```Kotlin
+import org.mozilla.yourApplication.GleanMetrics.Article;
+
+// Was the string truncated, and an error reported?
+assertEquals(
+    0,
+    Article.content.testGetNumRecordedErrors(ErrorType.INVALID_OVERFLOW)
+);
+```
+
+</div>
+
+<div data-lang="Swift" class="tab">
+
+```Swift
+// Was the string truncated, and an error reported?
+XCTAssertEqual(0, Article.content.testGetNumRecordedErrors(.invalidOverflow))
+```
+
+</div>
+
+<div data-lang="Python" class="tab">
+
+```Python
+from glean import load_metrics
+metrics = load_metrics("metrics.yaml")
 
-<div data-lang="Java" class="tab"></div>
+# Was the string truncated, and an error reported?
+assert 0 == metrics.article.content.test_get_num_recorded_errors(
+    ErrorType.INVALID_OVERFLOW
+)
+```
+
+</div>
+
+<div data-lang="Rust" class="tab">
+
+```Rust
+use glean::ErrorType;
+use glean_metrics::article;
 
-<div data-lang="Swift" class="tab"></div>
+// Was the string truncated, and an error reported?
+assert_eq!(
+  0,
+  article::content.test_get_num_recorded_errors(
+    ErrorType::InvalidOverflow,
+    None
+  )
+);
+```
 
-<div data-lang="Python" class="tab"></div>
+</div>
 
 <div data-lang="JavaScript" class="tab">
 
@@ -114,8 +255,6 @@ assert.strictEqual(
 
 </div>
 
-<div data-lang="Rust" class="tab"></div>
-
 <div data-lang="Firefox Desktop" class="tab"></div>
 
 {{#include ../../../shared/tab_footer.md}}

glean-core/android/src/main/java/mozilla/telemetry/glean/private/TextMetricType.kt

@@ -0,0 +1,16 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+package mozilla.telemetry.glean.private
+
+/**
+ * This implements the developer facing API for recording text metrics.
+ *
+ * Instances of this class type are automatically generated by the parsers at build time,
+ * allowing developers to record values that were previously registered in the metrics.yaml file.
+ *
+ * The text API only exposes the [set] method, which takes care of validating the input
+ * data and making sure that limits are enforced.
+ */
+typealias TextMetricType = mozilla.telemetry.glean.internal.TextMetric

glean-core/ios/Glean/Metrics/TextMetric.swift

@@ -0,0 +1,12 @@
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+/// This implements the developer facing API for recording text metrics.
+///
+/// Instances of this class type are automatically generated by the parsers at build time,
+/// allowing developers to record values that were previously registered in the metrics.yaml file.
+///
+/// The text API only exposes the `TextMetricType.set(_:)` method, which takes care of validating the input
+/// data and making sure that limits are enforced.
+public typealias TextMetricType = TextMetric

glean-core/src/glean.udl

@@ -537,3 +537,13 @@ interface NumeratorMetric {
 
     i32 test_get_num_recorded_errors(ErrorType error, optional string? ping_name = null);
 };
+
+interface TextMetric {
+    constructor(CommonMetricData meta);
+
+    void set(string value);
+
+    string? test_get_value(optional string? ping_name = null);
+
+    i32 test_get_num_recorded_errors(ErrorType error, optional string? ping_name = null);
+};

glean-core/src/lib.rs

@@ -59,8 +59,8 @@ pub use crate::metrics::{
     BooleanMetric, CounterMetric, CustomDistributionMetric, Datetime, DatetimeMetric,
     DenominatorMetric, DistributionData, EventMetric, MemoryDistributionMetric, MemoryUnit,
     NumeratorMetric, PingType, QuantityMetric, Rate, RateMetric, RecordedEvent, RecordedExperiment,
-    StringListMetric, StringMetric, TimeUnit, TimerId, TimespanMetric, TimingDistributionMetric,
-    UrlMetric, UuidMetric,
+    StringListMetric, StringMetric, TextMetric, TimeUnit, TimerId, TimespanMetric,
+    TimingDistributionMetric, UrlMetric, UuidMetric,
 };
 pub use crate::upload::{PingRequest, PingUploadTask, UploadResult};
 

glean-core/src/lib_unit_tests.rs

@@ -418,6 +418,7 @@ fn correct_order() {
         MemoryDistribution(Histogram::functional(2.0, 8.0)),
         Jwe("eyJhbGciOiJSU0EtT0FFUCIsImVuYyI6IkEyNTZHQ00ifQ.OKOawDo13gRp2ojaHV7LFpZcgV7T6DVZKTyKOMTYUmKoTCVJRgckCL9kiMT03JGeipsEdY3mx_etLbbWSrFr05kLzcSr4qKAq7YN7e9jwQRb23nfa6c9d-StnImGyFDbSv04uVuxIp5Zms1gNxKKK2Da14B8S4rzVRltdYwam_lDp5XnZAYpQdb76FdIKLaVmqgfwX7XWRxv2322i-vDxRfqNzo_tETKzpVLzfiwQyeyPGLBIO56YJ7eObdv0je81860ppamavo35UgoRdbYaBcoh9QcfylQr66oc6vFWXRcZ_ZT2LawVCWTIy3brGPi6UklfCpIMfIjf7iGdXKHzg.48V1_ALb6US04U3b.5eym8TW_c8SuK0ltJ3rpYIzOeDQz7TALvtu6UG9oMo4vpzs9tX_EFShS8iB7j6jiSdiwkIr3ajwQzaBtQD_A.XFBoMYUZodetZdvTiFvSkQ".into()),
         Rate(0, 0),
+        Text("loooooooong text".into()),
     ];
 
     for metric in all_metrics {
@@ -445,6 +446,7 @@ fn correct_order() {
             Jwe(..)                           => assert_eq!(13, disc),
             Rate(..)                          => assert_eq!(14, disc),
             Url(..)                           => assert_eq!(15, disc),
+            Text(..)                          => assert_eq!(16, disc),
         }
     }
 }

glean-core/src/metrics/mod.rs

@@ -27,6 +27,7 @@ mod rate;
 mod recorded_experiment;
 mod string;
 mod string_list;
+mod text;
 mod time_unit;
 mod timespan;
 mod timing_distribution;
@@ -56,6 +57,7 @@ pub use self::quantity::QuantityMetric;
 pub use self::rate::{Rate, RateMetric};
 pub use self::string::StringMetric;
 pub use self::string_list::StringListMetric;
+pub use self::text::TextMetric;
 pub use self::time_unit::TimeUnit;
 pub use self::timespan::TimespanMetric;
 pub use self::timing_distribution::TimerId;
@@ -125,6 +127,8 @@ pub enum Metric {
     Rate(i32, i32),
     /// A URL metric. See [`UrlMetric`] for more information.
     Url(String),
+    /// A Text metric. See [`TextMetric`] for more information.
+    Text(String),
 }
 
 /// A [`MetricType`] describes common behavior across all metrics.
@@ -181,6 +185,7 @@ impl Metric {
             Metric::Uuid(_) => "uuid",
             Metric::MemoryDistribution(_) => "memory_distribution",
             Metric::Jwe(_) => "jwe",
+            Metric::Text(_) => "text",
         }
     }
 
@@ -209,6 +214,7 @@ impl Metric {
             Metric::Uuid(s) => json!(s),
             Metric::MemoryDistribution(hist) => json!(memory_distribution::snapshot(hist)),
             Metric::Jwe(s) => json!(s),
+            Metric::Text(s) => json!(s),
         }
     }
 }