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Refactor database driver initialization logic #448

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Refactor database driver initialization logic #448

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59 changes: 15 additions & 44 deletions server/db/db.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,64 +22,35 @@ func InitDB() error {

envs := memorystore.RequiredEnvStoreObj.GetRequiredEnv()

isSQL := envs.DatabaseType != constants.DbTypeArangodb && envs.DatabaseType != constants.DbTypeMongodb && envs.DatabaseType != constants.DbTypeCassandraDB && envs.DatabaseType != constants.DbTypeScyllaDB && envs.DatabaseType != constants.DbTypeDynamoDB && envs.DatabaseType != constants.DbTypeCouchbaseDB
isArangoDB := envs.DatabaseType == constants.DbTypeArangodb
isMongoDB := envs.DatabaseType == constants.DbTypeMongodb
isCassandra := envs.DatabaseType == constants.DbTypeCassandraDB || envs.DatabaseType == constants.DbTypeScyllaDB
isDynamoDB := envs.DatabaseType == constants.DbTypeDynamoDB
isCouchbaseDB := envs.DatabaseType == constants.DbTypeCouchbaseDB

if isSQL {
log.Info("Initializing SQL Driver for: ", envs.DatabaseType)
Provider, err = sql.NewProvider()
if err != nil {
log.Fatal("Failed to initialize SQL driver: ", err)
return err
}
}
if isArangoDB {
switch envs.DatabaseType {
case constants.DbTypeArangodb:
log.Info("Initializing ArangoDB Driver")
Provider, err = arangodb.NewProvider()
if err != nil {
log.Fatal("Failed to initialize ArangoDB driver: ", err)
return err
}
}

if isMongoDB {
case constants.DbTypeMongodb:
log.Info("Initializing MongoDB Driver")
Provider, err = mongodb.NewProvider()
if err != nil {
log.Fatal("Failed to initialize MongoDB driver: ", err)
return err
}
}

if isCassandra {
case constants.DbTypeCassandraDB, constants.DbTypeScyllaDB:
log.Info("Initializing CassandraDB Driver")
Provider, err = cassandradb.NewProvider()
if err != nil {
log.Fatal("Failed to initialize CassandraDB driver: ", err)
return err
}
}

if isDynamoDB {
case constants.DbTypeDynamoDB:
log.Info("Initializing DynamoDB Driver for: ", envs.DatabaseType)
Provider, err = dynamodb.NewProvider()
if err != nil {
log.Fatal("Failed to initialize DynamoDB driver: ", err)
return err
}
}

if isCouchbaseDB {
case constants.DbTypeCouchbaseDB:
log.Info("Initializing CouchbaseDB Driver for: ", envs.DatabaseType)
Provider, err = couchbase.NewProvider()
if err != nil {
log.Fatal("Failed to initialize Couchbase driver: ", err)
return err
}

default:
log.Info("Initializing SQL Driver for: ", envs.DatabaseType)
Provider, err = sql.NewProvider()
}

if err != nil {
log.Fatal("Failed to initialize database driver: ", err)
return err
}

return nil
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