From caaa86915d6b0695d9c81162847302532aadfe17 Mon Sep 17 00:00:00 2001
From: Nomango <nomango@qq.com>
Date: Fri, 17 Jul 2020 18:37:42 +0800
Subject: [PATCH] [deploy] LogProvider supports filter by log level

---
 src/kiwano/utils/Logger.cpp | 24 +++++++++++++++++++++++-
 src/kiwano/utils/Logger.h   | 24 ++++++++++++++++++------
 2 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/src/kiwano/utils/Logger.cpp b/src/kiwano/utils/Logger.cpp
index 45a383df..692ab4c0 100644
--- a/src/kiwano/utils/Logger.cpp
+++ b/src/kiwano/utils/Logger.cpp
@@ -74,8 +74,30 @@ public:
 //
 // LogProvider
 //
+LogProvider::LogProvider()
+    : level_(LogLevel::Debug)
+{
+}
+
 LogProvider::~LogProvider() {}
 
+void LogProvider::Init() {}
+
+void LogProvider::Flush() {}
+
+void LogProvider::Write(LogLevel level, LogBuffer* msg)
+{
+    if (level < level_)
+        return;
+
+    this->WriteMessage(level, msg);
+}
+
+void LogProvider::SetLevel(LogLevel level)
+{
+    level_ = level;
+}
+
 #if defined(KGE_PLATFORM_WINDOWS)
 void SetWindowConsoleColor(std::ostream& os, int foreground, int background)
 {
@@ -566,7 +588,7 @@ void Logger::Write(LogLevel level, std::streambuf* raw_msg)
     for (auto provider : providers_)
     {
         buffer_.pubseekpos(0, std::ios_base::in);
-        provider->WriteMessage(level, &buffer_);
+        provider->Write(level, &buffer_);
     }
 }
 
diff --git a/src/kiwano/utils/Logger.h b/src/kiwano/utils/Logger.h
index 91a1776e..db299874 100644
--- a/src/kiwano/utils/Logger.h
+++ b/src/kiwano/utils/Logger.h
@@ -149,11 +149,21 @@ class KGE_API LogProvider : public ObjectBase
 public:
     virtual ~LogProvider();
 
-    virtual void Init() = 0;
+    virtual void Init();
+
+    virtual void Flush();
+
+    void Write(LogLevel level, LogBuffer* msg);
+
+    void SetLevel(LogLevel level);
+
+protected:
+    LogProvider();
 
     virtual void WriteMessage(LogLevel level, LogBuffer* msg) = 0;
 
-    virtual void Flush() = 0;
+protected:
+    LogLevel level_;
 };
 
 /**
@@ -169,10 +179,11 @@ public:
 
     void Init() override;
 
-    void WriteMessage(LogLevel level, LogBuffer* msg) override;
-
     void Flush() override;
 
+protected:
+    void WriteMessage(LogLevel level, LogBuffer* msg) override;
+
 private:
     typedef std::ostream&(*ConsoleColor)(std::ostream&);
 
@@ -192,10 +203,11 @@ public:
 
     void Init() override;
 
-    void WriteMessage(LogLevel level, LogBuffer* msg) override;
-
     void Flush() override;
 
+protected:
+    void WriteMessage(LogLevel level, LogBuffer* msg) override;
+
 private:
     std::ofstream ofs_;
 };