refactor(logs): use glog instead of prints

Ref: HICN-788
Signed-off-by: Enrico Loparco (eloparco) <eloparco@cisco.com>
Change-Id: Iedf75e1658a335985cc2dfd7b82ae61124f2371e

1 files changed, 46 insertions, 0 deletions

diff --git a/apps/common-includes/hicn/apps/utils/logger.h b/apps/common-includes/hicn/apps/utils/logger.h
new file mode 100644
index 000000000..d2af988d9
--- /dev/null
+++ b/apps/common-includes/hicn/apps/utils/logger.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <glog/logging.h>
+
+#include <iostream>
+
+#define LoggerInfo() LOG(INFO)
+#define LoggerWarn() LOG(WARNING)
+#define LoggerErr() LOG(ERROR)
+#define LoggerFatal() LOG(FATAL)
+#define LoggerVerbose(level) VLOG((level))
+#define LoggerIsOn(level) VLOG_IS_ON((level))
+
+struct HicnLogger {
+  HicnLogger() {
+    // Set log level
+    const char *log_level = std::getenv("LOG_LEVEL");
+    if (log_level != nullptr) FLAGS_v = std::stol(std::string(log_level));
+
+    // Enable/disable prefix
+    const char *enable_log_prefix = std::getenv("ENABLE_LOG_PREFIX");
+    if (enable_log_prefix != nullptr &&
+        std::string(enable_log_prefix) == "OFF") {
+      FLAGS_log_prefix = false;
+    }
+
+    FLAGS_colorlogtostderr = true;
+  }
+};
+
+static HicnLogger logger;
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