/
connection_kafka.go
275 lines (236 loc) · 8.5 KB
/
connection_kafka.go
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package materialize
import (
"fmt"
"strings"
"github.com/jmoiron/sqlx"
)
type KafkaBroker struct {
Broker string
TargetGroupPort int
AvailabilityZone string
PrivateLinkConnection IdentifierSchemaStruct
SSHTunnel IdentifierSchemaStruct
}
func GetKafkaBrokersStruct(v interface{}) []KafkaBroker {
var brokers []KafkaBroker
for _, broker := range v.([]interface{}) {
b := broker.(map[string]interface{})
privateLinkConn := IdentifierSchemaStruct{}
if b["privatelink_connection"] != nil && len(b["privatelink_connection"].([]interface{})) > 0 {
privateLinkConn = GetIdentifierSchemaStruct(b["privatelink_connection"].([]interface{}))
}
SshTunnel := IdentifierSchemaStruct{}
if b["ssh_tunnel"] != nil && len(b["ssh_tunnel"].([]interface{})) > 0 {
SshTunnel = GetIdentifierSchemaStruct(b["ssh_tunnel"].([]interface{}))
}
brokers = append(brokers, KafkaBroker{
Broker: b["broker"].(string),
TargetGroupPort: b["target_group_port"].(int),
AvailabilityZone: b["availability_zone"].(string),
PrivateLinkConnection: privateLinkConn,
SSHTunnel: SshTunnel,
})
}
return brokers
}
type awsPrivateLinkConnection struct {
PrivateLinkConnection IdentifierSchemaStruct
PrivateLinkPort int
}
func GetAwsPrivateLinkConnectionStruct(v interface{}) awsPrivateLinkConnection {
if v == nil || len(v.([]interface{})) == 0 {
return awsPrivateLinkConnection{}
}
b, ok := v.([]interface{})[0].(map[string]interface{})
if !ok {
return awsPrivateLinkConnection{}
}
privatelinkConnection := IdentifierSchemaStruct{}
if b["privatelink_connection"] != nil && len(b["privatelink_connection"].([]interface{})) > 0 {
privatelinkConnection = GetIdentifierSchemaStruct(b["privatelink_connection"].([]interface{}))
}
return awsPrivateLinkConnection{
PrivateLinkPort: b["privatelink_connection_port"].(int),
PrivateLinkConnection: privatelinkConnection,
}
}
type ConnectionKafkaBuilder struct {
Connection
kafkaBrokers []KafkaBroker
kafkaSecurityProtocol string
kafkaProgressTopic string
kafkaSSLCa ValueSecretStruct
kafkaSSLCert ValueSecretStruct
kafkaSSLKey IdentifierSchemaStruct
kafkaSASLMechanisms string
kafkaSASLUsername ValueSecretStruct
kafkaSASLPassword IdentifierSchemaStruct
kafkaSSHTunnel IdentifierSchemaStruct
validate bool
awsPrivateLinkConnection awsPrivateLinkConnection
}
func NewConnectionKafkaBuilder(conn *sqlx.DB, obj MaterializeObject) *ConnectionKafkaBuilder {
b := Builder{conn, BaseConnection}
return &ConnectionKafkaBuilder{
Connection: Connection{b, obj.Name, obj.SchemaName, obj.DatabaseName},
}
}
func (b *ConnectionKafkaBuilder) KafkaBrokers(kafkaBrokers []KafkaBroker) *ConnectionKafkaBuilder {
b.kafkaBrokers = kafkaBrokers
return b
}
func (b *ConnectionKafkaBuilder) KafkaAwsPrivateLink(privatelink awsPrivateLinkConnection) *ConnectionKafkaBuilder {
b.awsPrivateLinkConnection = privatelink
return b
}
func (b *ConnectionKafkaBuilder) KafkaSecurityProtocol(kafkaSecurityProtocol string) *ConnectionKafkaBuilder {
b.kafkaSecurityProtocol = kafkaSecurityProtocol
return b
}
func (b *ConnectionKafkaBuilder) KafkaProgressTopic(kafkaProgressTopic string) *ConnectionKafkaBuilder {
b.kafkaProgressTopic = kafkaProgressTopic
return b
}
func (b *ConnectionKafkaBuilder) KafkaSSLCa(kafkaSSLCa ValueSecretStruct) *ConnectionKafkaBuilder {
b.kafkaSSLCa = kafkaSSLCa
return b
}
func (b *ConnectionKafkaBuilder) KafkaSSLCert(kafkaSSLCert ValueSecretStruct) *ConnectionKafkaBuilder {
b.kafkaSSLCert = kafkaSSLCert
return b
}
func (b *ConnectionKafkaBuilder) KafkaSSLKey(kafkaSSLKey IdentifierSchemaStruct) *ConnectionKafkaBuilder {
b.kafkaSSLKey = kafkaSSLKey
return b
}
func (b *ConnectionKafkaBuilder) KafkaSASLMechanisms(kafkaSASLMechanisms string) *ConnectionKafkaBuilder {
b.kafkaSASLMechanisms = kafkaSASLMechanisms
return b
}
func (b *ConnectionKafkaBuilder) KafkaSASLUsername(kafkaSASLUsername ValueSecretStruct) *ConnectionKafkaBuilder {
b.kafkaSASLUsername = kafkaSASLUsername
return b
}
func (b *ConnectionKafkaBuilder) KafkaSASLPassword(kafkaSASLPassword IdentifierSchemaStruct) *ConnectionKafkaBuilder {
b.kafkaSASLPassword = kafkaSASLPassword
return b
}
func (b *ConnectionKafkaBuilder) KafkaSSHTunnel(kafkaSSHTunnel IdentifierSchemaStruct) *ConnectionKafkaBuilder {
b.kafkaSSHTunnel = kafkaSSHTunnel
return b
}
func (b *ConnectionKafkaBuilder) Validate(validate bool) *ConnectionKafkaBuilder {
b.validate = validate
return b
}
func (b *ConnectionKafkaBuilder) Create() error {
q := strings.Builder{}
q.WriteString(fmt.Sprintf(`CREATE CONNECTION %s TO KAFKA (`, b.QualifiedName()))
brokersString := b.BuildBrokersString()
if len(brokersString) > 0 {
q.WriteString(fmt.Sprintf(`BROKERS (%s)`, brokersString))
}
awsPrivateLinkString := b.BuildAwsPrivateLinkString()
if awsPrivateLinkString != "" {
q.WriteString(fmt.Sprintf(` AWS PRIVATELINK %s`, awsPrivateLinkString))
}
if b.kafkaSSHTunnel.Name != "" {
q.WriteString(fmt.Sprintf(`, SSH TUNNEL %s`,
QualifiedName(
b.kafkaSSHTunnel.DatabaseName,
b.kafkaSSHTunnel.SchemaName,
b.kafkaSSHTunnel.Name,
),
))
}
if b.kafkaSecurityProtocol != "" {
q.WriteString(fmt.Sprintf(`, SECURITY PROTOCOL = %s`, QuoteString(b.kafkaSecurityProtocol)))
}
if b.kafkaProgressTopic != "" {
q.WriteString(fmt.Sprintf(`, PROGRESS TOPIC %s`, QuoteString(b.kafkaProgressTopic)))
}
if b.kafkaSSLCa.Text != "" {
q.WriteString(fmt.Sprintf(`, SSL CERTIFICATE AUTHORITY = %s`, QuoteString(b.kafkaSSLCa.Text)))
}
if b.kafkaSSLCa.Secret.Name != "" {
q.WriteString(fmt.Sprintf(`, SSL CERTIFICATE AUTHORITY = SECRET %s`, b.kafkaSSLCa.Secret.QualifiedName()))
}
if b.kafkaSSLCert.Text != "" {
q.WriteString(fmt.Sprintf(`, SSL CERTIFICATE = %s`, QuoteString(b.kafkaSSLCert.Text)))
}
if b.kafkaSSLCert.Secret.Name != "" {
q.WriteString(fmt.Sprintf(`, SSL CERTIFICATE = SECRET %s`, b.kafkaSSLCert.Secret.QualifiedName()))
}
if b.kafkaSSLKey.Name != "" {
q.WriteString(fmt.Sprintf(`, SSL KEY = SECRET %s`, b.kafkaSSLKey.QualifiedName()))
}
if b.kafkaSASLMechanisms != "" {
q.WriteString(fmt.Sprintf(`, SASL MECHANISMS = %s`, QuoteString(b.kafkaSASLMechanisms)))
}
if b.kafkaSASLUsername.Text != "" {
q.WriteString(fmt.Sprintf(`, SASL USERNAME = %s`, QuoteString(b.kafkaSASLUsername.Text)))
}
if b.kafkaSASLUsername.Secret.Name != "" {
q.WriteString(fmt.Sprintf(`, SASL USERNAME = SECRET %s`, b.kafkaSASLUsername.Secret.QualifiedName()))
}
if b.kafkaSASLPassword.Name != "" {
q.WriteString(fmt.Sprintf(`, SASL PASSWORD = SECRET %s`, b.kafkaSASLPassword.QualifiedName()))
}
q.WriteString(`)`)
if !b.validate {
q.WriteString(` WITH (VALIDATE = false)`)
}
return b.ddl.exec(q.String())
}
// BuildBrokersString returns a string of Kafka brokers DDL
func (b *ConnectionKafkaBuilder) BuildBrokersString() string {
var brokersStrings = []string{}
for _, broker := range b.kafkaBrokers {
fb := strings.Builder{}
fb.WriteString(QuoteString(broker.Broker))
if broker.SSHTunnel.Name != "" {
fb.WriteString(fmt.Sprintf(` USING SSH TUNNEL %s`,
QualifiedName(
broker.SSHTunnel.DatabaseName,
broker.SSHTunnel.SchemaName,
broker.SSHTunnel.Name,
),
))
}
if broker.PrivateLinkConnection.Name != "" {
p := strings.Builder{}
p.WriteString(fmt.Sprintf(` USING AWS PRIVATELINK %s`,
QualifiedName(
broker.PrivateLinkConnection.DatabaseName,
broker.PrivateLinkConnection.SchemaName,
broker.PrivateLinkConnection.Name,
),
))
fb.WriteString(p.String())
options := []string{}
if broker.TargetGroupPort != 0 {
options = append(options, fmt.Sprintf(`PORT %d`, broker.TargetGroupPort))
}
if broker.AvailabilityZone != "" {
options = append(options, fmt.Sprintf(`AVAILABILITY ZONE %s`, QuoteString(broker.AvailabilityZone)))
}
if len(options) > 0 {
fb.WriteString(fmt.Sprintf(` (%s)`, strings.Join(options, ", ")))
}
}
brokersStrings = append(brokersStrings, fb.String())
}
return strings.Join(brokersStrings, ", ")
}
// Top level AWS PrivateLink Connection
func (b *ConnectionKafkaBuilder) BuildAwsPrivateLinkString() string {
if b.awsPrivateLinkConnection.PrivateLinkConnection.Name == "" {
return ""
}
q := strings.Builder{}
q.WriteString(b.awsPrivateLinkConnection.PrivateLinkConnection.QualifiedName())
if b.awsPrivateLinkConnection.PrivateLinkPort != 0 {
q.WriteString(fmt.Sprintf(` (PORT %d)`, b.awsPrivateLinkConnection.PrivateLinkPort))
}
return q.String()
}