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hook.go
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hook.go
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package rueidishook
import (
"context"
"time"
"github.com/redis/rueidis"
)
var _ rueidis.Client = (*hookclient)(nil)
// Hook allows user to intercept rueidis.Client by using WithHook
type Hook interface {
Do(client rueidis.Client, ctx context.Context, cmd rueidis.Completed) (resp rueidis.RedisResult)
DoMulti(client rueidis.Client, ctx context.Context, multi ...rueidis.Completed) (resps []rueidis.RedisResult)
DoCache(client rueidis.Client, ctx context.Context, cmd rueidis.Cacheable, ttl time.Duration) (resp rueidis.RedisResult)
DoMultiCache(client rueidis.Client, ctx context.Context, multi ...rueidis.CacheableTTL) (resps []rueidis.RedisResult)
Receive(client rueidis.Client, ctx context.Context, subscribe rueidis.Completed, fn func(msg rueidis.PubSubMessage)) (err error)
DoStream(client rueidis.Client, ctx context.Context, cmd rueidis.Completed) rueidis.RedisResultStream
DoMultiStream(client rueidis.Client, ctx context.Context, multi ...rueidis.Completed) rueidis.MultiRedisResultStream
}
// WithHook wraps rueidis.Client with Hook and allows user to intercept rueidis.Client
func WithHook(client rueidis.Client, hook Hook) rueidis.Client {
return &hookclient{client: client, hook: hook}
}
type hookclient struct {
client rueidis.Client
hook Hook
}
func (c *hookclient) B() rueidis.Builder {
return c.client.B()
}
func (c *hookclient) Do(ctx context.Context, cmd rueidis.Completed) (resp rueidis.RedisResult) {
return c.hook.Do(c.client, ctx, cmd)
}
func (c *hookclient) DoMulti(ctx context.Context, multi ...rueidis.Completed) (resp []rueidis.RedisResult) {
return c.hook.DoMulti(c.client, ctx, multi...)
}
func (c *hookclient) DoCache(ctx context.Context, cmd rueidis.Cacheable, ttl time.Duration) (resp rueidis.RedisResult) {
return c.hook.DoCache(c.client, ctx, cmd, ttl)
}
func (c *hookclient) DoMultiCache(ctx context.Context, multi ...rueidis.CacheableTTL) (resps []rueidis.RedisResult) {
return c.hook.DoMultiCache(c.client, ctx, multi...)
}
func (c *hookclient) DoStream(ctx context.Context, cmd rueidis.Completed) rueidis.RedisResultStream {
return c.hook.DoStream(c.client, ctx, cmd)
}
func (c *hookclient) DoMultiStream(ctx context.Context, multi ...rueidis.Completed) rueidis.MultiRedisResultStream {
return c.hook.DoMultiStream(c.client, ctx, multi...)
}
func (c *hookclient) Dedicated(fn func(rueidis.DedicatedClient) error) (err error) {
return c.client.Dedicated(func(client rueidis.DedicatedClient) error {
return fn(&dedicated{client: &extended{DedicatedClient: client}, hook: c.hook})
})
}
func (c *hookclient) Dedicate() (rueidis.DedicatedClient, func()) {
client, cancel := c.client.Dedicate()
return &dedicated{client: &extended{DedicatedClient: client}, hook: c.hook}, cancel
}
func (c *hookclient) Receive(ctx context.Context, subscribe rueidis.Completed, fn func(msg rueidis.PubSubMessage)) (err error) {
return c.hook.Receive(c.client, ctx, subscribe, fn)
}
func (c *hookclient) Nodes() map[string]rueidis.Client {
nodes := c.client.Nodes()
for addr, client := range nodes {
nodes[addr] = &hookclient{client: client, hook: c.hook}
}
return nodes
}
func (c *hookclient) Close() {
c.client.Close()
}
var _ rueidis.DedicatedClient = (*dedicated)(nil)
type dedicated struct {
client *extended
hook Hook
}
func (d *dedicated) B() rueidis.Builder {
return d.client.B()
}
func (d *dedicated) Do(ctx context.Context, cmd rueidis.Completed) (resp rueidis.RedisResult) {
return d.hook.Do(d.client, ctx, cmd)
}
func (d *dedicated) DoMulti(ctx context.Context, multi ...rueidis.Completed) (resp []rueidis.RedisResult) {
return d.hook.DoMulti(d.client, ctx, multi...)
}
func (d *dedicated) Receive(ctx context.Context, subscribe rueidis.Completed, fn func(msg rueidis.PubSubMessage)) (err error) {
return d.hook.Receive(d.client, ctx, subscribe, fn)
}
func (d *dedicated) SetPubSubHooks(hooks rueidis.PubSubHooks) <-chan error {
return d.client.SetPubSubHooks(hooks)
}
func (d *dedicated) Close() {
d.client.Close()
}
var _ rueidis.Client = (*extended)(nil)
type extended struct {
rueidis.DedicatedClient
}
func (e *extended) DoCache(ctx context.Context, cmd rueidis.Cacheable, ttl time.Duration) (resp rueidis.RedisResult) {
panic("DoCache() is not allowed with rueidis.DedicatedClient")
}
func (e *extended) DoMultiCache(ctx context.Context, multi ...rueidis.CacheableTTL) (resp []rueidis.RedisResult) {
panic("DoMultiCache() is not allowed with rueidis.DedicatedClient")
}
func (c *extended) DoStream(ctx context.Context, cmd rueidis.Completed) rueidis.RedisResultStream {
panic("DoStream() is not allowed with rueidis.DedicatedClient")
}
func (c *extended) DoMultiStream(ctx context.Context, multi ...rueidis.Completed) rueidis.MultiRedisResultStream {
panic("DoMultiStream() is not allowed with rueidis.DedicatedClient")
}
func (e *extended) Dedicated(fn func(rueidis.DedicatedClient) error) (err error) {
panic("Dedicated() is not allowed with rueidis.DedicatedClient")
}
func (e *extended) Dedicate() (client rueidis.DedicatedClient, cancel func()) {
panic("Dedicate() is not allowed with rueidis.DedicatedClient")
}
func (e *extended) Nodes() map[string]rueidis.Client {
panic("Nodes() is not allowed with rueidis.DedicatedClient")
}