Update semantic convention constants generator script, template and s…

…pec reference

The template was updated to reflect the changes introduced in otel/semconvgen v0.3.0 and v0.3.1.
The script was updated to pin the version of the otel/semconvgen image, otherwise incompatible updates would break it.

Fixes open-telemetry#3042.

buildscripts/semantic-convention/generate.sh

@@ -4,8 +4,8 @@ SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 ROOT_DIR="${SCRIPT_DIR}/../../"
 
 # freeze the spec & generator tools versions to make SemanticAttributes generation reproducible
-SPEC_VERSION=v1.1.0
-GENERATOR_VERSION=0.2.1
+SPEC_VERSION=v1.2.0
+GENERATOR_VERSION=0.3.1
 
 cd ${SCRIPT_DIR}
 

buildscripts/semantic-convention/templates/SemanticAttributes.java.j2

@@ -11,8 +11,10 @@
  List<String>
  {%- elif type == "boolean" -%}
  boolean
- {%- elif type == "number" -%}
+ {%- elif type == "int" -%}
  long
+ {%- elif type == "double" -%}
+ double
  {%- else -%}
  {{type}}
  {%- endif -%}
@@ -24,8 +26,10 @@
  stringArrayKey
  {%- elif type == "boolean" -%}
  booleanKey
- {%- elif type == "number" -%}
+ {%- elif type == "int" -%}
  longKey
+ {%- elif type == "double" -%}
+ doubleKey
  {%- else -%}
  {{lowerFirst(type)}}Key
  {%- endif -%}
@@ -43,6 +47,7 @@
 package {{pkg | trim}};
 
 import static io.opentelemetry.api.common.AttributeKey.booleanKey;
+import static io.opentelemetry.api.common.AttributeKey.doubleKey;
 import static io.opentelemetry.api.common.AttributeKey.longKey;
 import static io.opentelemetry.api.common.AttributeKey.stringKey;
 import static io.opentelemetry.api.common.AttributeKey.stringArrayKey;