From 1ae0387a255c7ec891179e3880579368b6cc588d Mon Sep 17 00:00:00 2001
From: Antony Woods <acron1@gmail.com>
Date: Tue, 20 May 2014 23:30:51 +0100
Subject: Added log level support

---
 crow.h            |  3 ++-
 http_connection.h |  2 +-
 http_server.h     |  2 +-
 logging.h         | 20 +++++++++++++++++---
 routing.h         | 20 ++++++++++----------
 settings.h        | 13 ++++++++++++-
 6 files changed, 43 insertions(+), 17 deletions(-)

diff --git a/crow.h b/crow.h
index ade49aa..d2b71af 100644
--- a/crow.h
+++ b/crow.h
@@ -69,9 +69,10 @@ namespace crow
             Server<self_t> server(this, port_, concurrency_);
             server.run();
         }
+
         void debug_print()
         {
-            std::cerr << "Routing:" << std::endl;
+            CROW_LOG_DEBUG << "Routing:";
             router_.debug_print();
         }
 
diff --git a/http_connection.h b/http_connection.h
index 7dc32e1..b90d5ed 100644
--- a/http_connection.h
+++ b/http_connection.h
@@ -75,7 +75,7 @@ namespace crow
             res = handler_->handle(req);
 
             CROW_LOG_INFO << "HTTP/" << parser_.http_major << "." << parser_.http_minor << ' '
-             << method_name(req.method)
+             << method_name(req.method) << " " << req.url
              << " " << res.code << ' ' << close_connection_;
 
             static std::string seperator = ": ";
diff --git a/http_server.h b/http_server.h
index 7d76c84..3ca88f2 100644
--- a/http_server.h
+++ b/http_server.h
@@ -35,7 +35,7 @@ namespace crow
                         std::async(std::launch::async, [this]{io_service_.run();})
                         );
 
-            CROW_LOG_INFO << "Server is running, local port " << port_;
+            CROW_LOG_INFO << server_name_ << " server is running, local port " << port_;
 
             signals_.async_wait(
                 [&](const boost::system::error_code& error, int signal_number){
diff --git a/logging.h b/logging.h
index 5a23303..dc610f0 100644
--- a/logging.h
+++ b/logging.h
@@ -31,12 +31,16 @@ class logger {
 		};
 
 		//
+		static Level currentLevel;
+
 		logger(string prefix, logger::Level level) : m_prefix(prefix), m_level(level) {
 
 		}
 		~logger() {
 #ifdef CROW_ENABLE_LOGGING
-			cerr << "(" << timeStamp() << ") [" << m_prefix << "] " << m_stringStream.str() << endl;
+			if(m_level <= currentLevel) {
+				cerr << "(" << timeStamp() << ") [" << m_prefix << "] " << m_stringStream.str() << endl;
+			}
 #endif
 		}
 
@@ -45,12 +49,19 @@ class logger {
 		logger& operator<<(T const &value) {
 
 #ifdef CROW_ENABLE_LOGGING
-    		m_stringStream << value;
+			if(m_level <= currentLevel) {
+    			m_stringStream << value;
+    		}
 #endif
     		return *this;
 		}
 
-		private:
+		//
+		static void setLogLevel(logger::Level level) {
+			currentLevel = level;
+		}
+
+	private:
 
 		//
 		ostringstream m_stringStream;
@@ -58,6 +69,9 @@ class logger {
 		Level m_level;
 };
 
+//
+logger::Level logger::currentLevel = (Level)CROW_LOG_LEVEL;
+
 #define CROW_LOG_CRITICAL	logger("CRITICAL", logger::Level::CRITICAL)
 #define CROW_LOG_ERROR		logger("ERROR   ", logger::Level::ERROR)
 #define CROW_LOG_WARNING	logger("WARNING ", logger::Level::WARNING)
diff --git a/routing.h b/routing.h
index a338d4a..c3be5fd 100644
--- a/routing.h
+++ b/routing.h
@@ -490,35 +490,35 @@ public:
             {
                 if (n->param_childrens[i])
                 {
-                    std::cerr << std::string(2*level, ' ') /*<< "("<<n->param_childrens[i]<<") "*/;
+                    CROW_LOG_DEBUG << std::string(2*level, ' ') /*<< "("<<n->param_childrens[i]<<") "*/;
                     switch((ParamType)i)
                     {
                         case ParamType::INT:
-                            std::cerr << "<int>";
+                            CROW_LOG_DEBUG << "<int>";
                             break;
                         case ParamType::UINT:
-                            std::cerr << "<uint>";
+                            CROW_LOG_DEBUG << "<uint>";
                             break;
                         case ParamType::DOUBLE:
-                            std::cerr << "<float>";
+                            CROW_LOG_DEBUG << "<float>";
                             break;
                         case ParamType::STRING:
-                            std::cerr << "<str>";
+                            CROW_LOG_DEBUG << "<str>";
                             break;
                         case ParamType::PATH:
-                            std::cerr << "<path>";
+                            CROW_LOG_DEBUG << "<path>";
                             break;
                         default:
-                            std::cerr << "<ERROR>";
+                            CROW_LOG_DEBUG << "<ERROR>";
                             break;
                     }
-                    std::cerr << std::endl;
+
                     debug_node_print(&nodes_[n->param_childrens[i]], level+1);
                 }
             }
             for(auto& kv : n->children)
             {
-                std::cerr << std::string(2*level, ' ') /*<< "(" << kv.second << ") "*/ << kv.first << std::endl;
+                CROW_LOG_DEBUG << std::string(2*level, ' ') /*<< "(" << kv.second << ") "*/ << kv.first;
                 debug_node_print(&nodes_[kv.second], level+1);
             }
         }
@@ -585,7 +585,7 @@ public:
             if (rule_index >= rules_.size())
                 throw std::runtime_error("Trie internal structure corrupted!");
 
-            CROW_LOG_INFO << req.url << ' ' << ((TaggedRule<>*)rules_[rule_index].get())->rule_;
+            CROW_LOG_DEBUG << "Matched rule '" << ((TaggedRule<>*)rules_[rule_index].get())->rule_ << "'";
 
             return rules_[rule_index]->handle(req, found.second);
         }
diff --git a/settings.h b/settings.h
index 251df69..563fb1b 100644
--- a/settings.h
+++ b/settings.h
@@ -1,7 +1,18 @@
 // settings for crow
+// TODO - replace with runtime config. libucl?
 
 /* #ifdef - enables debug mode */
 #define CROW_ENABLE_DEBUG
 
 /* #ifdef - enables logging */
-#define CROW_ENABLE_LOGGING
\ No newline at end of file
+#define CROW_ENABLE_LOGGING
+
+/* #define - specifies log level */
+/*
+	CRITICAL 	= 0
+	ERROR		= 1
+	WARNING		= 2
+	INFO 		= 3
+	DEBUG 		= 4
+*/
+#define CROW_LOG_LEVEL 4
\ No newline at end of file
-- 
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