[BL] Add Logging functions.

BaseLib/Logging.cpp

+/**
+ * \file
+ *
+ * \copyright
+ * Copyright (c) 2012-2020, OpenGeoSys Community (http://www.opengeosys.org)
+ *            Distributed under a Modified BSD License.
+ *              See accompanying file LICENSE.txt or
+ *              http://www.opengeosys.org/project/license
+ *
+ */
+
+#include "Logging.h"
+#include <spdlog/sinks/stdout_color_sinks.h>
+#include <map>
+
+#include "Error.h"
+namespace BaseLib
+{
+std::shared_ptr<spdlog::logger> console = spdlog::stdout_color_st("ogs");
+
+void setConsoleLogLevel(std::string const& level_string)
+{
+    using namespace spdlog::level;
+    std::map<std::string, level_enum> string_to_log_level = {
+        {"none", off},  {"critical", critical}, {"error", err}, {"warn", warn},
+        {"info", info}, {"debug", debug},       {"all", trace}};
+
+    auto const level = string_to_log_level.find(level_string);
+    if (level == string_to_log_level.end())
+    {
+        ERR("'{:s}' is not a valid log level!", level_string);
+        OGS_FATAL("Wrong log level string.");
+    }
+    console->set_level(level->second);
+    spdlog::set_default_logger(console);
+}
+}  // namespace BaseLib

BaseLib/Logging.h

+/**
+ * \file
+ *
+ * \copyright
+ * Copyright (c) 2012-2020, OpenGeoSys Community (http://www.opengeosys.org)
+ *            Distributed under a Modified BSD License.
+ *              See accompanying file LICENSE.txt or
+ *              http://www.opengeosys.org/project/license
+ *
+ */
+
+#pragma once
+
+#include <spdlog/spdlog.h>
+
+namespace BaseLib
+{
+extern std::shared_ptr<spdlog::logger> console;
+void setConsoleLogLevel(std::string const& level_string);
+
+}  // namespace BaseLib
+
+template <typename... Args>
+void DBUG(char const* fmt, Args const&... args)
+{
+    BaseLib::console->debug(fmt, args...);
+}
+template <typename... Args>
+void INFO(char const* fmt, Args const&... args)
+{
+    BaseLib::console->info(fmt, args...);
+}
+template <typename... Args>
+void WARN(char const* fmt, Args const&... args)
+{
+    BaseLib::console->warn(fmt, args...);
+}
+template <typename... Args>
+void ERR(char const* fmt, Args const&... args)
+{
+    BaseLib::console->error(fmt, args...);
+}
+template <typename... Args>
+void CRITICAL(char const* fmt, Args const&... args)
+{
+    BaseLib::console->critical(fmt, args...);
+}