Add topic/service name information in debug output.

Fix #209

Author: Minggang Wang

lib/client.js

@@ -63,7 +63,7 @@ class Client extends Entity {
 
     let rawROSRequest = rclRequest.serialize();
     this._sequenceNumber = rclnodejs.sendRequest(this._handle, rawROSRequest);
-    debug('Client has sent a request.');
+    debug(`Client has sent a ${this._serviceName} request.`);
     this._callback = callback;
   }
 
@@ -73,7 +73,7 @@ class Client extends Entity {
 
   processResponse(response) {
     this._response.deserialize(response);
-    debug('Client has received response from service.');
+    debug(`Client has received ${this._serviceName} response from service.`);
     this._callback(toPlainObject(this._response));
   }
 

lib/publisher.js

@@ -56,7 +56,7 @@ class Publisher extends Entity {
 
     let rawRosMessage = rclMessage.serialize();
     rclnodejs.publish(this._handle, rawRosMessage);
-    debug('Message has been published.');
+    debug(`Message of topic ${this._topic} has been published.`);
   }
 
   static createPublisher(nodeHandle, typeClass, topic, qos) {

lib/service.js

@@ -72,7 +72,7 @@ class Service extends Entity {
 
   processRequest(headerHandle, request) {
     this._request.deserialize(request);
-    debug('Service has received a request from client.');
+    debug(`Service has received a ${this._serviceName} request from client.`);
 
     const requestObj = toPlainObject(this._request);
     const response = new Response(this, headerHandle);
@@ -83,7 +83,7 @@ class Service extends Entity {
       rclnodejs.sendResponse(this._handle, rawROSResponse, headerHandle);
     }
 
-    debug('Service has processed the request and sent the response.');
+    debug(`Service has processed the ${this._serviceName} request and sent the response.`);
   }
 
   static createService(nodeHandle, serviceName, typeClass, callback, qos) {

lib/subscription.js

@@ -34,7 +34,7 @@ class Subscription extends Entity {
 
   processResponse(msg) {
     this._message.deserialize(msg);
-    debug('Message received.');
+    debug(`Message of topic ${this._topic} received.`);
     this._callback(toPlainObject(this._message));
   }