impl

package
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 Go to latest Published: Apr 10, 2026 License: MIT Imports: 22 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func StartMetricsServer 

func StartMetricsServer(addr string, handler http.Handler) error

StartMetricsServer 启动 Prometheus 指标 HTTP 服务器

Types

type DBProtocol 

type DBProtocol string

DBProtocol 数据库协议类型 

const (
	ProtocolMySQL      DBProtocol = "mysql"
	ProtocolPostgreSQL DBProtocol = "postgresql"
	ProtocolUnknown    DBProtocol = "unknown"
)

type HandshakeInfo 

type HandshakeInfo struct {
	Protocol DBProtocol        // 协议类型
	Username string            // 用户名
	Database string            // 数据库名
	Options  map[string]string // 其他选项
}

HandshakeInfo 握手信息

func DetectProtocolAndParse 

func DetectProtocolAndParse(conn net.Conn) (*HandshakeInfo, error)

DetectProtocolAndParse 检测协议类型并解析握手包

type HandshakeParser 

type HandshakeParser interface {
	// Parse 解析握手包
	Parse(conn net.Conn) (*HandshakeInfo, error)

	// Protocol 返回协议类型
	Protocol() DBProtocol
}

HandshakeParser 握手解析器接口

type MetricsSnapshot 

type MetricsSnapshot struct {
	TotalConnections     int64
	ActiveConnections    int64
	FailedConnections    int64
	TotalBytesSent       int64
	TotalBytesReceived   int64
	TotalQueriesExecuted int64
	BlockedQueries       int64
	Uptime               string
}

MetricsSnapshot 指标快照（用于调试和日志）

func GetMetricsSnapshot 

func GetMetricsSnapshot(metrics *proxy.TCPServerMetrics, rdsMetrics *RdsMetrics) MetricsSnapshot

GetSnapshot 获取指标快照

type MySQLConnectionPool 

type MySQLConnectionPool struct {
	// contains filtered or unexported fields
}

MySQLConnectionPool MySQL 连接池

func NewMySQLConnectionPool 

func NewMySQLConnectionPool(maxSize int, idleTimeout time.Duration, log *zerolog.Logger) *MySQLConnectionPool

NewMySQLConnectionPool 创建 MySQL 连接池

func (*MySQLConnectionPool) Close 

func (p *MySQLConnectionPool) Close()

Close 关闭连接池

func (*MySQLConnectionPool) GetConnection 

func (p *MySQLConnectionPool) GetConnection(ctx context.Context, target string) (net.Conn, error)

GetConnection 获取连接（复用或新建）

func (*MySQLConnectionPool) GetStats 

func (p *MySQLConnectionPool) GetStats() map[string]PoolStats

GetStats 获取连接池统计

func (*MySQLConnectionPool) ReleaseConnection 

func (p *MySQLConnectionPool) ReleaseConnection(conn net.Conn)

ReleaseConnection 释放连接（归还到池或关闭）

type MySQLHandshakeParser 

type MySQLHandshakeParser struct{}

MySQLHandshakeParser MySQL 握手解析器

func (*MySQLHandshakeParser) Parse 

func (p *MySQLHandshakeParser) Parse(conn net.Conn) (*HandshakeInfo, error)

func (*MySQLHandshakeParser) Protocol 

func (p *MySQLHandshakeParser) Protocol() DBProtocol

type MySQLInterceptor 

type MySQLInterceptor struct {
	// contains filtered or unexported fields
}

MySQLInterceptor MySQL 协议拦截器

type PoolStats 

type PoolStats struct {
	Target      string
	IdleCount   int
	ActiveCount int
}

PoolStats 连接池统计

type PostgreSQLHandshakeParser 

type PostgreSQLHandshakeParser struct{}

PostgreSQLHandshakeParser PostgreSQL 握手解析器

func (*PostgreSQLHandshakeParser) Parse 

func (p *PostgreSQLHandshakeParser) Parse(conn net.Conn) (*HandshakeInfo, error)

func (*PostgreSQLHandshakeParser) Protocol 

func (p *PostgreSQLHandshakeParser) Protocol() DBProtocol

type PrometheusMetrics 

type PrometheusMetrics struct {
	// contains filtered or unexported fields
}

PrometheusMetrics Prometheus 指标收集器

func NewPrometheusMetrics 

func NewPrometheusMetrics(namespace string) *PrometheusMetrics

NewPrometheusMetrics 创建 Prometheus 指标收集器

func (*PrometheusMetrics) Handler 

func (m *PrometheusMetrics) Handler() http.Handler

Handler 返回 Prometheus HTTP handler

func (*PrometheusMetrics) RecordQueryDuration 

func (m *PrometheusMetrics) RecordQueryDuration(seconds float64)

RecordQueryDuration 记录查询延迟

func (*PrometheusMetrics) UpdateFromServerMetrics 

func (m *PrometheusMetrics) UpdateFromServerMetrics(metrics *proxy.TCPServerMetrics)

UpdateFromServerMetrics 从服务器指标同步到 Prometheus

func (*PrometheusMetrics) UpdatePoolStats 

func (m *PrometheusMetrics) UpdatePoolStats(stats map[string]PoolStats)

UpdatePoolStats 更新连接池统计

type RdsConnectionHandler 

type RdsConnectionHandler struct {
	// contains filtered or unexported fields
}

RdsConnectionHandler RDS 连接处理器

func NewRdsConnectionHandler 

func NewRdsConnectionHandler(
	maxConnections int,
	policySvc policy.Service,
	backendSvc backend.Service,
	auditSvc audit.Service,
	log *zerolog.Logger,
) *RdsConnectionHandler

NewRdsConnectionHandler 创建 RDS 连接处理器

func (*RdsConnectionHandler) Close 

func (h *RdsConnectionHandler) Close()

Close 关闭处理器

func (*RdsConnectionHandler) GetMetrics 

func (h *RdsConnectionHandler) GetMetrics() *RdsMetrics

GetMetrics 获取指标

func (*RdsConnectionHandler) GetPoolStats 

func (h *RdsConnectionHandler) GetPoolStats() map[string]interface{}

GetPoolStats 获取连接池统计

func (*RdsConnectionHandler) HandleConnection 

func (h *RdsConnectionHandler) HandleConnection(ctx context.Context, clientConn net.Conn) error

HandleConnection 实现 proxy.ConnectionHandler 接口

type RdsMetrics 

type RdsMetrics struct {
	TotalQueriesExecuted int64
	BlockedQueries       int64
}

RdsMetrics RDS 代理指标

type RdsProxyServiceImpl 

type RdsProxyServiceImpl struct {
	ioc.ObjectImpl

	// TCP 代理配置
	TCPEnabled    bool   `json:"tcp_enabled" yaml:"tcp_enabled" toml:"tcp_enabled" env:"TCP_ENABLED"`
	TCPListenAddr string `json:"tcp_listen_addr" yaml:"tcp_listen_addr" toml:"tcp_listen_addr" env:"TCP_LISTEN_ADDR"`
	TCPMaxConns   int    `json:"tcp_max_conns" yaml:"tcp_max_conns" toml:"tcp_max_conns" env:"TCP_MAX_CONNS"`

	// WebSocket 代理配置（兼容模式）
	WebSocketEnabled bool `json:"websocket_enabled" yaml:"websocket_enabled" toml:"websocket_enabled" env:"WEBSOCKET_ENABLED"`
	ConnectTimeout   int  `json:"connect_timeout" yaml:"connect_timeout" toml:"connect_timeout" env:"CONNECT_TIMEOUT"`
	IdleTimeout      int  `json:"idle_timeout" yaml:"idle_timeout" toml:"idle_timeout" env:"IDLE_TIMEOUT"`

	// Prometheus 监控
	MetricsEnabled bool   `json:"metrics_enabled" yaml:"metrics_enabled" toml:"metrics_enabled" env:"METRICS_ENABLED"`
	MetricsAddr    string `json:"metrics_addr" yaml:"metrics_addr" toml:"metrics_addr" env:"METRICS_ADDR"`
	// contains filtered or unexported fields
}

func (*RdsProxyServiceImpl) CloseSession 

func (m *RdsProxyServiceImpl) CloseSession(sessionID string) error

CloseSession 关闭指定会话

func (*RdsProxyServiceImpl) GetActiveSessions 

func (m *RdsProxyServiceImpl) GetActiveSessions() []rds.SessionInfo

GetActiveSessions 获取活跃会话列表

func (*RdsProxyServiceImpl) GetMetrics 

func (m *RdsProxyServiceImpl) GetMetrics() *rds.ServerMetrics

GetMetrics 获取服务器指标

func (*RdsProxyServiceImpl) GetPoolStats 

func (m *RdsProxyServiceImpl) GetPoolStats() rds.PoolStats

GetPoolStats 获取连接池统计

func (*RdsProxyServiceImpl) GetTCPServer 

func (m *RdsProxyServiceImpl) GetTCPServer() *rds.TCPServerInfo

GetTCPServer 获取 TCP 服务器信息（用于管理）

func (*RdsProxyServiceImpl) HandleWebSocketProxy 

func (m *RdsProxyServiceImpl) HandleWebSocketProxy(ctx context.Context, conn *proxy.Connection, wsConn proxy.WebSocketConn) error

HandleWebSocketProxy 处理 WebSocket 代理（兼容模式）

func (*RdsProxyServiceImpl) Init 

func (m *RdsProxyServiceImpl) Init() error

func (*RdsProxyServiceImpl) Name 

func (m *RdsProxyServiceImpl) Name() string

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