feat: add attribute definition for fallback support (#84)

* feat: add attribute definition for fallback support

* chore: update framework version

Author: aaron-steinfeld

attribute-service-api/src/main/proto/org/hypertrace/core/attribute/service/v1/attribute_metadata.proto

@@ -81,7 +81,7 @@ message AttributeMetadata {
   // can't be the same for different attribute within the same scope
   string key = 3;
   string display_name = 4;
-  AttributeScope scope = 5 [deprecated=true]; // Use scope_string instead
+  AttributeScope scope = 5 [deprecated = true]; // Use scope_string instead
   bool materialized = 6;
   // 1) Attributes can have units (cores / seconds) for presentation
   // 2) Metrics are temporarily combined, and need it for presentation
@@ -132,7 +132,7 @@ message AttributeSourceMetadataDeleteRequest {
 // in the future, we would need to support partial matching for auto-complete
 message AttributeMetadataFilter {
   repeated string fqn = 1;
-  repeated AttributeScope scope = 2 [deprecated=true]; // Use scope_string instead
+  repeated AttributeScope scope = 2 [deprecated = true]; // Use scope_string instead
   repeated string key = 4;
   repeated string scope_string = 5;
 }
@@ -145,13 +145,18 @@ message AttributeDefinition {
     Projection projection = 1;
     string source_path = 2;
     SourceField source_field = 3;
+    AttributeDefinitions first_value_present = 4;
   }
 
   enum SourceField {
     SOURCE_FIELD_UNSET = 0;
     SOURCE_FIELD_START_TIME = 1;
     SOURCE_FIELD_END_TIME = 2;
   }
+
+  message AttributeDefinitions {
+    repeated AttributeDefinition definitions = 1;
+  }
 }
 
 message Projection {

attribute-service/build.gradle.kts

@@ -56,7 +56,7 @@ tasks.integrationTest {
 dependencies {
   implementation(project(":attribute-service-impl"))
 
-  implementation("org.hypertrace.core.serviceframework:platform-service-framework:0.1.22")
+  implementation("org.hypertrace.core.serviceframework:platform-service-framework:0.1.23")
   implementation("org.hypertrace.core.grpcutils:grpc-server-utils:0.4.0")
   implementation("org.hypertrace.core.documentstore:document-store:0.5.4")
 
@@ -82,7 +82,7 @@ dependencies {
   integrationTestImplementation("org.junit.jupiter:junit-jupiter:5.7.1")
   integrationTestImplementation("com.google.guava:guava:30.1.1-jre")
   integrationTestImplementation(project(":attribute-service-client"))
-  integrationTestImplementation("org.hypertrace.core.serviceframework:integrationtest-service-framework:0.1.22")
+  integrationTestImplementation("org.hypertrace.core.serviceframework:integrationtest-service-framework:0.1.23")
 }
 
 application {