Web engine (#217)

* Changing to webEngine

* Removing error

* Adding CPP

* Adding Otel CPP Version

* Rectifying TestCase

* cpp add

* changing to cpp

Author: kpratyus

instrumentation/otel-webserver-module/build.gradle

@@ -39,6 +39,7 @@ project.ext {
     props.load(new FileInputStream(file("version.properties")))
     moduleVersion = props.get("server-module-version")
     moduleRelease = props.get("release")
+    cppSDKVersion = props.get("CPP-SDK-version")
     moduleName = "WebServer Module"
     buildType = "Release Build"
     fullVersion = "${moduleName} ${moduleVersion} ${moduleRelease} ${headSHA1}: ${buildType}"
@@ -87,6 +88,7 @@ task generateModuleVersionHeader(type: Copy) {
         headSHA1: headSHA1,
         moduleVersion: moduleVersion,
         moduleRelease: moduleRelease,
+        cppSDKVersion: cppSDKVersion,
         fullVersion: fullVersion)
 }
 
@@ -100,6 +102,7 @@ task generateVersionFile(type: Copy) {
         headSHA1: headSHA1,
         moduleVersion: moduleVersion,
         moduleRelease: moduleRelease,
+        cppSDKVersion: cppSDKVersion,
         fullVersion: fullVersion)
 }
 

instrumentation/otel-webserver-module/include/core/sdkwrapper/SdkConstants.h

@@ -22,8 +22,9 @@ namespace sdkwrapper {
 const std::string kServiceName = "service.name";
 const std::string kServiceNamespace = "service.namespace";
 const std::string kServiceInstanceId = "service.instance.id";
-const std::string kOtelLibraryName = "telemetry.sdk.language";
-const std::string kOtelLibraryVersion = "telemetry.sdk.version";
+const std::string kOtelWebEngineName = "webengine.name";
+const std::string kOtelWebEngineVersion = "webengine.version";
+const std::string kOtelWebEngineDescription = "webengine.description";
 const std::string kHttpErrorCode = "HTTP ERROR CODE:";
 const std::string kAttrHTTPServerName         = "http.server_name";
 const std::string kAttrHTTPMethod             = "http.method";

instrumentation/otel-webserver-module/src/core/sdkwrapper/SdkHelperFactory.cpp

@@ -66,12 +66,17 @@ SdkHelperFactory::SdkHelperFactory(
 
     // NOTE : resource attribute values are nostd::variant and so we need to explicitely set it to std::string
     std::string libraryVersion = MODULE_VERSION;
+    std::string cppSDKVersion = CPP_SDK_VERSION;
 
     // NOTE : InstrumentationLibrary code is incomplete for the otlp exporter in sdk.
     // So, we need to pass libraryName and libraryVersion as resource attributes.
     // Ref : https://github.com/open-telemetry/opentelemetry-cpp/blob/main/exporters/otlp/src/otlp_recordable.cc
-    attributes[kOtelLibraryName] = config->getOtelLibraryName();
-    attributes[kOtelLibraryVersion] = libraryVersion;
+    
+    //Library was changed to webengine to comply with specs https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/resource/semantic_conventions/webengine.md
+    attributes[kOtelWebEngineName] = config->getOtelLibraryName();
+    //attributes[kOtelWebEngineVersion] = libraryVersion;
+
+    //attributes[kOtelWebEngineDescription] = config->getOtelLibraryName() + " Instrumentation";
 
     auto exporter = GetExporter(config);
     auto processor = GetSpanProcessor(config, std::move(exporter));
@@ -84,9 +89,9 @@ SdkHelperFactory::SdkHelperFactory(
             std::move(sampler)
             ));
 
-    mTracer = mTracerProvider->GetTracer(config->getOtelLibraryName(), libraryVersion);
+    mTracer = mTracerProvider->GetTracer("cpp", cppSDKVersion);
     LOG4CXX_INFO(mLogger,
-        "Tracer created with LibraryName: " << config->getOtelLibraryName() <<
+        "Tracer created with LibraryName: " << "cpp" <<
         " and LibraryVersion " << libraryVersion);
 
     // Adding trace propagator

instrumentation/otel-webserver-module/src/module_version_template.h

@@ -5,12 +5,16 @@
 #define MODULE_VERSION_ "$moduleVersion"
 #define RELEASE_ "$moduleRelease"
 #define FULL_MODULE_VERSION_ "$fullVersion"
+#define CPP_SDK_VERSION_ "$cppSDKVersion"
 
 static const char MODULE_VERSION[] =
     MODULE_VERSION_ RELEASE_  MODULE_SHA1;
 
 static const char FULL_MODULE_VERSION[] =
     FULL_MODULE_VERSION_;
 
+static const char CPP_SDK_VERSION[] = 
+    CPP_SDK_VERSION_;
+
 #endif
 

instrumentation/otel-webserver-module/test/integration/src/test/java/restutils/ValidationUtils.java

@@ -33,7 +33,7 @@ public void verifyAllTraces() {
                 }
                 Assert.assertTrue(span.getJSONObject("tags").get("service.namespace").toString().contentEquals("sample_namespace"));
                 Assert.assertTrue(span.getJSONObject("localEndpoint").get("serviceName").toString().contentEquals("demoservice"));
-                Assert.assertTrue(span.getJSONObject("tags").get("telemetry.sdk.language").toString().contentEquals("Apache"));
+                Assert.assertTrue(span.getJSONObject("tags").get("telemetry.sdk.language").toString().contentEquals("cpp"));
             }
         }
 

instrumentation/otel-webserver-module/version.properties

@@ -1,3 +1,4 @@
 server-module-version=1.0.0
 release=GA
 nginxSupportedVersions=1.22.0,1.23.0,1.23.1
+CPP-SDK-version=1.2.0