Use WeakDecode to decode the initialize values (#2871)

plugins/database/cassandra/cassandra_test.go

@@ -99,6 +99,19 @@ func TestCassandra_Initialize(t *testing.T) {
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
+
+	// test a string protocol
+	connectionDetails = map[string]interface{}{
+		"hosts":            connURL,
+		"username":         "cassandra",
+		"password":         "cassandra",
+		"protocol_version": "4",
+	}
+
+	err = db.Initialize(connectionDetails, true)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
 }
 
 func TestCassandra_CreateUser(t *testing.T) {

plugins/database/cassandra/connection_producer.go

@@ -46,7 +46,7 @@ func (c *cassandraConnectionProducer) Initialize(conf map[string]interface{}, ve
 	c.Lock()
 	defer c.Unlock()
 
-	err := mapstructure.Decode(conf, c)
+	err := mapstructure.WeakDecode(conf, c)
 	if err != nil {
 		return err
 	}

plugins/database/mongodb/connection_producer.go

@@ -33,7 +33,7 @@ func (c *mongoDBConnectionProducer) Initialize(conf map[string]interface{}, veri
 	c.Lock()
 	defer c.Unlock()
 
-	err := mapstructure.Decode(conf, c)
+	err := mapstructure.WeakDecode(conf, c)
 	if err != nil {
 		return err
 	}

plugins/database/mssql/mssql_test.go

@@ -44,6 +44,17 @@ func TestMSSQL_Initialize(t *testing.T) {
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
+
+	// Test decoding a string value for max_open_connections
+	connectionDetails = map[string]interface{}{
+		"connection_url":       connURL,
+		"max_open_connections": "5",
+	}
+
+	err = db.Initialize(connectionDetails, true)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
 }
 
 func TestMSSQL_CreateUser(t *testing.T) {

plugins/database/mysql/mysql_test.go

@@ -84,6 +84,17 @@ func TestMySQL_Initialize(t *testing.T) {
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
+
+	// Test decoding a string value for max_open_connections
+	connectionDetails = map[string]interface{}{
+		"connection_url":       connURL,
+		"max_open_connections": "5",
+	}
+
+	err = db.Initialize(connectionDetails, true)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
 }
 
 func TestMySQL_CreateUser(t *testing.T) {

plugins/database/postgresql/postgresql_test.go

@@ -63,7 +63,8 @@ func TestPostgreSQL_Initialize(t *testing.T) {
 	defer cleanup()
 
 	connectionDetails := map[string]interface{}{
-		"connection_url": connURL,
+		"connection_url":       connURL,
+		"max_open_connections": 5,
 	}
 
 	dbRaw, _ := New()
@@ -84,6 +85,18 @@ func TestPostgreSQL_Initialize(t *testing.T) {
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
+
+	// Test decoding a string value for max_open_connections
+	connectionDetails = map[string]interface{}{
+		"connection_url":       connURL,
+		"max_open_connections": "5",
+	}
+
+	err = db.Initialize(connectionDetails, true)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
 }
 
 func TestPostgreSQL_CreateUser(t *testing.T) {

plugins/helper/database/connutil/sql.go

@@ -33,7 +33,7 @@ func (c *SQLConnectionProducer) Initialize(conf map[string]interface{}, verifyCo
 	c.Lock()
 	defer c.Unlock()
 
-	err := mapstructure.Decode(conf, c)
+	err := mapstructure.WeakDecode(conf, c)
 	if err != nil {
 		return err
 	}