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modify policy interface

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WhiteBatman 2017-09-26 10:22:13 +08:00 committed by Lunny Xiao
parent 3bbbd9d215
commit c618aab9e1
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GPG Key ID: C3B7C91B632F738A
2 changed files with 13 additions and 9 deletions
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10
engine_group.go
View File

@ -62,7 +62,7 @@ func newGroup1(driverName string, dataSourceNames string, policy ...Policy) (*En
s_count: len(engines[1:]), s_count: len(engines[1:]),
policy: policy[0], policy: policy[0],
} }
eg.policy.SetEngineGroup(eg) eg.policy.Init()
return eg, nil return eg, nil
} else { } else {
xPolicy := new(XormEngineGroupPolicy) xPolicy := new(XormEngineGroupPolicy)
@ -73,7 +73,7 @@ func newGroup1(driverName string, dataSourceNames string, policy ...Policy) (*En
s_count: len(engines[1:]), s_count: len(engines[1:]),
policy: xPolicy, policy: xPolicy,
} }
xPolicy.SetEngineGroup(eg) xPolicy.Init()
return eg, nil return eg, nil
} }
@ -91,7 +91,7 @@ func newGroup2(Master *Engine, Slaves []*Engine, policy ...Policy) (*EngineGroup
s_count: len(Slaves), s_count: len(Slaves),
policy: policy[0], policy: policy[0],
} }
eg.policy.SetEngineGroup(eg) eg.policy.Init()
return eg, nil return eg, nil
} else { } else {
xPolicy := new(XormEngineGroupPolicy) xPolicy := new(XormEngineGroupPolicy)
@ -102,7 +102,7 @@ func newGroup2(Master *Engine, Slaves []*Engine, policy ...Policy) (*EngineGroup
s_count: len(Slaves), s_count: len(Slaves),
policy: xPolicy, policy: xPolicy,
} }
xPolicy.SetEngineGroup(eg) xPolicy.Init()
return eg, nil return eg, nil
} }
} }
@ -149,7 +149,7 @@ func (eg *EngineGroup) Slave() *Engine {
if eg.count == 1 { if eg.count == 1 {
return eg.master return eg.master
} }
return eg.slaves[eg.policy.Slave()] return eg.policy.Slave(eg)
} }
func (eg *EngineGroup) Slaves() []*Engine { func (eg *EngineGroup) Slaves() []*Engine {

12
engine_group_policy.go
View File

@ -19,8 +19,8 @@ const (
) )
type Policy interface { type Policy interface {
Slave() int Init()
SetEngineGroup(*EngineGroup) Slave(*EngineGroup) *Engine
} }
type XormEngineGroupPolicy struct { type XormEngineGroupPolicy struct {
@ -30,9 +30,13 @@ type XormEngineGroupPolicy struct {
r *rand.Rand r *rand.Rand
} }
func (xgep *XormEngineGroupPolicy) SetEngineGroup(eg *EngineGroup) { func (xgep *XormEngineGroupPolicy) Init() {
xgep.r = rand.New(rand.NewSource(time.Now().UnixNano())) xgep.r = rand.New(rand.NewSource(time.Now().UnixNano()))
}
func (xgep *XormEngineGroupPolicy) Slave(eg *EngineGroup) *Engine {
xgep.eg = eg xgep.eg = eg
return eg.slaves[xgep.slave()]
} }
func (xgep *XormEngineGroupPolicy) SetWeight() { func (xgep *XormEngineGroupPolicy) SetWeight() {
@ -44,7 +48,7 @@ func (xgep *XormEngineGroupPolicy) SetWeight() {
} }
} }
func (xgep *XormEngineGroupPolicy) Slave() int { func (xgep *XormEngineGroupPolicy) slave() int {
switch xgep.eg.p { switch xgep.eg.p {
case ENGINE_GROUP_POLICY_RANDOM: case ENGINE_GROUP_POLICY_RANDOM:
return xgep.Random() return xgep.Random()