Reading Rmr Configuration

Reading Rmr configuration.

Signed-off-by: naman.gupta <naman.gupta@samsung.com>
Change-Id: I18901dd232f35fdf81441dc415b5b714ced9ac82
diff --git a/config/configuration.go b/config/configuration.go
new file mode 100644
index 0000000..e67083a
--- /dev/null
+++ b/config/configuration.go
@@ -0,0 +1,69 @@
+/*
+==================================================================================
+  Copyright (c) 2023 Samsung
+
+   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.
+
+   This source code is part of the near-RT RIC (RAN Intelligent Controller)
+   platform project (RICP).
+==================================================================================
+*/
+package config
+
+import (
+	"os"
+
+	"gerrit.o-ran-sc.org/r/ric-plt/a1/pkg/a1"
+	"github.com/spf13/viper"
+)
+
+type Configuration struct {
+	LogLevel          string
+	Name              string
+	MaxSize           int
+	ThreadType        int
+	LowLatency        bool
+	FastAck           bool
+	MaxRetryOnFailure int
+	Port              int
+}
+
+func ParseConfiguration() *Configuration {
+	viper.SetConfigType("yaml")
+	viper.SetConfigName("configuration")
+	configFile := os.Getenv("A1_CONFIG_FILE")
+	viper.SetConfigFile(configFile)
+	err := viper.ReadInConfig()
+	if err != nil {
+		a1.Logger.Info("#configuration.ParseConfiguration - failed to read configuration file: %s\n", err)
+	}
+
+	config := Configuration{}
+	config.LogLevel = viper.GetString("log-level")
+	viper.SetDefault("log-level", "info")
+	config.Name = viper.GetString("NAME")
+	viper.SetDefault("NAME", "")
+	config.MaxSize = viper.GetInt("MAX_SIZE")
+	viper.SetDefault("MAX_SIZE", 65534)
+	config.ThreadType = viper.GetInt("THREAD_TYPE")
+	viper.SetDefault("THREAD_TYPE", 0)
+	config.LowLatency = viper.GetBool("LOW_LATENCY")
+	viper.SetDefault("LOW_LATENCY", false)
+	config.FastAck = viper.GetBool("FAST_ACK")
+	viper.SetDefault("FAST_ACK", false)
+	config.MaxRetryOnFailure = viper.GetInt("MAX_RETRY_ON_FAILURE")
+	viper.SetDefault("MAX_RETRY_ON_FAILURE", 1)
+	config.Port = viper.GetInt("PORT")
+	viper.SetDefault("PORT", 4561)
+	return &config
+}