/
common.go
74 lines (62 loc) · 1.82 KB
/
common.go
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package XEtcd
import (
"context"
"github.com/bb-orz/goinfras/XLogger"
"go.etcd.io/etcd/clientv3"
)
type EtcdCommon struct {
client *clientv3.Client
}
// 简单设置键值
func (c *EtcdCommon) Put(key, value string) error {
var err error
_, err = c.client.Put(context.Background(), key, value, func(op *clientv3.Op) {
if !op.IsPut() {
XLogger.XCommon().Error("Put Error ")
}
})
return err
}
// 设置键值携带context
func (c *EtcdCommon) PutWithContext(ctx context.Context, key, value string) error {
var err error
_, err = c.client.Put(ctx, key, value, func(op *clientv3.Op) {
if !op.IsPut() {
XLogger.XCommon().Error("Put Error ")
}
})
return err
}
// 使用租约设置键值
func (c *EtcdCommon) PutWithLease(ctx context.Context, key, value string, ttl int64) (clientv3.LeaseID, error) {
var err error
lease, err := c.client.Grant(ctx, ttl)
if err != nil {
return -1, err
}
_, err = c.client.Put(ctx, key, value, clientv3.WithLease(lease.ID), func(op *clientv3.Op) {
if !op.IsPut() {
XLogger.XCommon().Error("Put Error ")
}
})
if err != nil {
return -1, err
}
return lease.ID, nil
}
// 简单获取键值
func (c *EtcdCommon) Get(key string) (*clientv3.GetResponse, error) {
return c.client.Get(context.Background(), key)
}
// 获取键值携带context
func (c *EtcdCommon) GetWithContext(ctx context.Context, key string) (*clientv3.GetResponse, error) {
return c.client.Get(ctx, key)
}
// 获取该键下所有的子健值
func (c *EtcdCommon) GetWithPrefix(ctx context.Context, key string) (*clientv3.GetResponse, error) {
return c.client.Get(ctx, key, clientv3.WithPrefix())
}
// 获取该键包含子健的个数
func (c *EtcdCommon) GetCount(key string) (*clientv3.GetResponse, error) {
return c.client.Get(context.Background(), key, clientv3.WithCountOnly(), clientv3.WithPrefix())
}