Restructure code and create module library

Restructures and moves code to make it
aligned with the current design.
https://wiki.onap.org/display/DW/Multi+Cluster+Application+Scheduler
examples/example_module.go shows how to
import and use modules from this package.
Patch#2 Updated example

Issue-ID: MULTICLOUD-871
Signed-off-by: Ritu Sood <ritu.sood@intel.com>
Change-Id: Ia1e9802a946a07dcca8f79f0e2250933ab3efa66

2 files changed, 0 insertions, 170 deletions

diff --git a/src/orchestrator/internal/config/config.go b/src/orchestrator/internal/config/config.go
deleted file mode 100644
index cb4656f0..00000000
--- a/src/orchestrator/internal/config/config.go
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright 2019 Intel Corporation, Inc
- *
- * 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.
- */
-
-package config
-
-import (
-	"encoding/json"
-	"log"
-	"os"
-	"reflect"
-)
-
-// Configuration loads up all the values that are used to configure
-// backend implementations
-type Configuration struct {
-	CAFile              string `json:"ca-file"`
-	ServerCert          string `json:"server-cert"`
-	ServerKey           string `json:"server-key"`
-	Password            string `json:"password"`
-	DatabaseIP          string `json:"database-ip"`
-	DatabaseType        string `json:"database-type"`
-	PluginDir           string `json:"plugin-dir"`
-	EtcdIP              string `json:"etcd-ip"`
-	EtcdCert            string `json:"etcd-cert"`
-	EtcdKey             string `json:"etcd-key"`
-	EtcdCAFile          string `json:"etcd-ca-file"`
-	ServicePort         string `json:"service-port"`
-	KubernetesLabelName string `json:"kubernetes-label-name"`
-}
-
-// Config is the structure that stores the configuration
-var gConfig *Configuration
-
-// readConfigFile reads the specified smsConfig file to setup some env variables
-func readConfigFile(file string) (*Configuration, error) {
-	f, err := os.Open(file)
-	if err != nil {
-		return defaultConfiguration(), err
-	}
-	defer f.Close()
-
-	// Setup some defaults here
-	// If the json file has values in it, the defaults will be overwritten
-	conf := defaultConfiguration()
-
-	// Read the configuration from json file
-	decoder := json.NewDecoder(f)
-	decoder.DisallowUnknownFields()
-	err = decoder.Decode(conf)
-	if err != nil {
-		return conf, err
-	}
-
-	return conf, nil
-}
-
-func defaultConfiguration() *Configuration {
-	cwd, err := os.Getwd()
-	if err != nil {
-		log.Println("Error getting cwd. Using .")
-		cwd = "."
-	}
-
-	return &Configuration{
-		CAFile:              "ca.cert",
-		ServerCert:          "server.cert",
-		ServerKey:           "server.key",
-		Password:            "",
-		DatabaseIP:          "127.0.0.1",
-		DatabaseType:        "mongo",
-		PluginDir:           cwd,
-		EtcdIP:              "127.0.0.1",
-		EtcdCert:            "etcd.cert",
-		EtcdKey:             "etcd.key",
-		EtcdCAFile:          "etcd-ca.cert",
-		ServicePort:         "9015",
-		KubernetesLabelName: "orchestrator.io/rb-instance-id",
-	}
-}
-
-// GetConfiguration returns the configuration for the app.
-// It will try to load it if it is not already loaded.
-func GetConfiguration() *Configuration {
-	if gConfig == nil {
-		conf, err := readConfigFile("config.json")
-		if err != nil {
-			log.Println("Error loading config file: ", err)
-			log.Println("Using defaults...")
-		}
-		gConfig = conf
-	}
-
-	return gConfig
-}
-
-// SetConfigValue sets a value in the configuration
-// This is mostly used to customize the application and
-// should be used carefully.
-func SetConfigValue(key string, value string) *Configuration {
-	c := GetConfiguration()
-	if value == "" || key == "" {
-		return c
-	}
-
-	v := reflect.ValueOf(c).Elem()
-	if v.Kind() == reflect.Struct {
-		f := v.FieldByName(key)
-		if f.IsValid() {
-			if f.CanSet() {
-				if f.Kind() == reflect.String {
-					f.SetString(value)
-				}
-			}
-		}
-	}
-	return c
-}
diff --git a/src/orchestrator/internal/config/config_test.go b/src/orchestrator/internal/config/config_test.go
deleted file mode 100644
index ce7641ae..00000000
--- a/src/orchestrator/internal/config/config_test.go
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright 2019 Intel Corporation, Inc
- *
- * 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.
- */
-
-package config
-
-import (
-	"testing"
-)
-
-func TestReadConfigurationFile(t *testing.T) {
-	t.Run("Non Existent Configuration File", func(t *testing.T) {
-		_, err := readConfigFile("filedoesnotexist.json")
-		if err == nil {
-			t.Fatal("ReadConfiguationFile: Expected Error, got nil")
-		}
-	})
-
-	t.Run("Read Configuration File", func(t *testing.T) {
-		conf, err := readConfigFile("../../tests/configs/mock_config.json")
-		if err != nil {
-			t.Fatal("ReadConfigurationFile: Error reading file: ", err)
-		}
-		if conf.DatabaseType != "mock_db_test" {
-			t.Fatal("ReadConfigurationFile: Incorrect entry read from file")
-		}
-	})
-}