feat add microprile examples

CMakeLists.txt

@@ -41,7 +41,10 @@ check_cxx_source_compiles(
     HAVE_PTHREAD)
 
 add_subdirectory(third_party/breakpad)
-add_subdirectory(third_party/microprofile)
+if(WITH_MICROPROFILE)
+    add_subdirectory(third_party/microprofile)
+    set(COMM_LINK_MICROPROFILE ON)
+endif()
 
 CPMAddPackage(
     NAME oatpp
@@ -58,6 +61,10 @@ CPMAddPackage(
     SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/spdlog
     FORCE)
 
+if(WITH_EXAMPLES)
+    cc_executable(microprofile_demo SRCS examples/microprofile_demo.cc)
+endif()
+
 enable_testing()
 cc_test(
     calc_test
@@ -71,14 +78,6 @@ cc_executable(
     SRCS src/breakpad_test.cc
     DEPS PUBLIC breakpad)
 
-cc_executable(
-    metric_server
-    SRCS src/metric_server.cc
-    DEPS PUBLIC
-         prometheus-cpp::core
-         prometheus-cpp::pull
-         prometheus-cpp::push)
-
 cc_benchmark(
     calc_benchmark
     SRCS src/calc_benchmark.cc