feat: add generated proto models for profiles signal (#2979)

Co-authored-by: Cijo Thomas <cijo.thomas@gmail.com>

Author: adriangb

opentelemetry-proto/CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## vNext
 
+- **Feature**: Added Rust code generation for profiles protos. [#2979](https://github.com/open-telemetry/opentelemetry-rust/pull/2979)
 - Update `tonic` dependency version to 0.13
 - - Update proto definitions to v1.6.0.
 

opentelemetry-proto/Cargo.toml

@@ -43,6 +43,7 @@ trace = ["opentelemetry/trace", "opentelemetry_sdk/trace"]
 metrics = ["opentelemetry/metrics", "opentelemetry_sdk/metrics"]
 logs = ["opentelemetry/logs", "opentelemetry_sdk/logs"]
 zpages = ["trace"]
+profiles = []
 testing = ["opentelemetry/testing"]
 
 # add ons

opentelemetry-proto/src/proto.rs

@@ -6,7 +6,7 @@ pub(crate) mod serializers {
     use crate::tonic::common::v1::any_value::{self, Value};
     use crate::tonic::common::v1::AnyValue;
     use serde::de::{self, MapAccess, Visitor};
-    use serde::ser::{SerializeMap, SerializeStruct};
+    use serde::ser::{SerializeMap, SerializeSeq, SerializeStruct};
     use serde::{Deserialize, Deserializer, Serialize, Serializer};
     use std::fmt;
 
@@ -174,6 +174,30 @@ pub(crate) mod serializers {
         s.parse::<u64>().map_err(de::Error::custom)
     }
 
+    pub fn serialize_vec_u64_to_string<S>(value: &[u64], serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let s = value.iter()
+            .map(|v| v.to_string())
+            .collect::<Vec<_>>();
+        let mut sq = serializer.serialize_seq(Some(s.len()))?;
+        for v in value {
+            sq.serialize_element(&v.to_string())?;
+        }
+        sq.end()
+    }
+
+    pub fn deserialize_vec_string_to_vec_u64<'de, D>(deserializer: D) -> Result<Vec<u64>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s: Vec<String> = Deserialize::deserialize(deserializer)?;
+        s.into_iter()
+            .map(|v| v.parse::<u64>().map_err(de::Error::custom))
+            .collect()
+    }
+
     pub fn serialize_i64_to_string<S>(value: &i64, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: Serializer,
@@ -266,5 +290,13 @@ pub mod tonic {
         pub mod v1;
     }
 
+    /// Generated types used in zpages.
+    #[cfg(feature = "profiles")]
+    #[path = ""]
+    pub mod profiles {
+        #[path = "opentelemetry.proto.profiles.v1development.rs"]
+        pub mod v1;
+    }
+
     pub use crate::transform::common::tonic::Attributes;
 }

opentelemetry-proto/src/proto/tonic/opentelemetry.proto.profiles.v1development.rs

@@ -11,3 +11,6 @@ pub mod logs;
 
 #[cfg(feature = "zpages")]
 pub mod tracez;
+
+#[cfg(feature = "profiles")]
+pub mod profiles;

opentelemetry-proto/src/transform/mod.rs

@@ -0,0 +1 @@
+

opentelemetry-proto/src/transform/profiles.rs

@@ -12,6 +12,7 @@ const TONIC_PROTO_FILES: &[&str] = &[
     "src/proto/opentelemetry-proto/opentelemetry/proto/collector/metrics/v1/metrics_service.proto",
     "src/proto/opentelemetry-proto/opentelemetry/proto/logs/v1/logs.proto",
     "src/proto/opentelemetry-proto/opentelemetry/proto/collector/logs/v1/logs_service.proto",
+    "src/proto/opentelemetry-proto/opentelemetry/proto/profiles/v1development/profiles.proto",
     "src/proto/tracez.proto",
 ];
 const TONIC_INCLUDES: &[&str] = &["src/proto/opentelemetry-proto", "src/proto"];
@@ -66,6 +67,7 @@ fn build_tonic() {
         "metrics.v1.Summary",
         "metrics.v1.NumberDataPoint",
         "metrics.v1.HistogramDataPoint",
+        "profiles.v1development.Function",
     ] {
         builder = builder.type_attribute(
             path,
@@ -87,6 +89,7 @@ fn build_tonic() {
         "logs.v1.LogRecord.trace_id",
         "metrics.v1.Exemplar.span_id",
         "metrics.v1.Exemplar.trace_id",
+        "profiles.v1development.Profile.profile_id",
     ] {
         builder = builder
             .field_attribute(path, "#[cfg_attr(feature = \"with-serde\", serde(serialize_with = \"crate::proto::serializers::serialize_to_hex_string\", deserialize_with = \"crate::proto::serializers::deserialize_from_hex_string\"))]")
@@ -110,6 +113,14 @@ fn build_tonic() {
         builder = builder
             .field_attribute(path, "#[cfg_attr(feature = \"with-serde\", serde(serialize_with = \"crate::proto::serializers::serialize_u64_to_string\", deserialize_with = \"crate::proto::serializers::deserialize_string_to_u64\"))]")
     }
+    for path in ["profiles.v1development.Profile.time_nanos"] {
+        builder = builder
+            .field_attribute(path, "#[cfg_attr(feature = \"with-serde\", serde(serialize_with = \"crate::proto::serializers::serialize_i64_to_string\", deserialize_with = \"crate::proto::serializers::deserialize_string_to_i64\"))]")
+    }
+    for path in ["profiles.v1development.Sample.timestamps_unix_nano"] {
+        builder = builder
+            .field_attribute(path, "#[cfg_attr(feature = \"with-serde\", serde(serialize_with = \"crate::proto::serializers::serialize_vec_u64_to_string\", deserialize_with = \"crate::proto::serializers::deserialize_vec_string_to_vec_u64\"))]")
+    }
 
     // special serializer and deserializer for value
     // The Value::value field must be hidden