add logging to complex module example

Author: lia-viam

src/viam/examples/modules/complex/base/impl.cpp

@@ -2,14 +2,14 @@
 
 #include <exception>
 #include <fstream>
-#include <iostream>
 #include <sstream>
 
 #include <grpcpp/support/status.h>
 
 #include <viam/sdk/components/base.hpp>
 #include <viam/sdk/components/component.hpp>
 #include <viam/sdk/config/resource.hpp>
+#include <viam/sdk/log/logging.hpp>
 #include <viam/sdk/resource/resource.hpp>
 
 using namespace viam::sdk;
@@ -106,7 +106,8 @@ void MyBase::set_power(const Vector3& linear, const Vector3& angular, const Prot
 }
 
 ProtoStruct MyBase::do_command(const ProtoStruct& command) {
-    std::cout << "Received DoCommand request for MyBase " << Resource::name() << std::endl;
+    // The VIAM_RESOURCE_LOG macro will associate log messages to the current resource
+    VIAM_RESOURCE_LOG(info) << "Received DoCommand request";
     return command;
 }
 

src/viam/examples/modules/complex/gizmo/impl.cpp

@@ -1,7 +1,6 @@
 #include "impl.hpp"
 
 #include <fstream>
-#include <iostream>
 #include <sstream>
 #include <vector>
 

src/viam/examples/modules/complex/main.cpp

@@ -8,6 +8,7 @@
 #include <viam/sdk/components/base.hpp>
 #include <viam/sdk/components/component.hpp>
 #include <viam/sdk/config/resource.hpp>
+#include <viam/sdk/log/logging.hpp>
 #include <viam/sdk/module/module.hpp>
 #include <viam/sdk/module/service.hpp>
 #include <viam/sdk/registry/registry.hpp>
@@ -47,6 +48,9 @@ int main(int argc, char** argv) {
         [](Dependencies deps, ResourceConfig cfg) { return std::make_unique<MyGizmo>(deps, cfg); },
         MyGizmo::validate);
 
+    // Write general log statements with the VIAM_LOG macro
+    VIAM_LOG(info) << "Registered mybase and mygizmo";
+
     Model mysummation_model("viam", "summation", "mysummation");
 
     std::shared_ptr<ModelRegistration> mysummation_mr = std::make_shared<ModelRegistration>(