aslist
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aslist(A Sorted List)是golang语言实现的线程安全可排序的list。便捷的调用方式,使开发者快速入门使用。
aslist
aslist(A Sorted List)是golang语言实现的线程安全可排序的list。便捷的调用方式,使开发者快速入门使用。
快速开始
go get -u github.com/CreditTone/aslist
如果你使用gomod管理依赖
go get -u github.com/CreditTone/aslist@master
导入
import(
"github.com/CreditTone/aslist"
)
定义结构
type A struct {
Name string
}
1.创建aslist
asList := NewAsList()
2.push元素
asList.Push(A{Name: "我的名字好长"})
asList.Push(A{Name: "我名长"})
asList.Push(A{Name: "我的名字好长阿"})
asList.Push(A{Name: "我名字长"})
asList.Push(A{Name: "我的名字长"})
3.使用SortWithCompareFunc传入自定义函数排序
asList := NewAsList()
asList.Push(A{Name: "我的名字好长"})
asList.Push(A{Name: "我名长"})
asList.Push(A{Name: "我的名字好长阿"})
asList.Push(A{Name: "我名字长"})
asList.Push(A{Name: "我的名字长"})
t.Log("第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.SortWithCompareFunc(func(a, b interface{}) bool {
struct_a := a.(A)
struct_b := b.(A)
if len(struct_a.Name) > len(struct_b.Name) {
return true //需要a 排在 b前面返回true
}
return false
})
t.Log("排序后遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
输出结果:
=== RUN TestAsListSortWithCompareFunc
--- PASS: TestAsListSortWithCompareFunc (0.00s)
aslist_test.go:33: 第一次遍历
aslist_test.go:35: 0 {我的名字好长}
aslist_test.go:35: 1 {我名长}
aslist_test.go:35: 2 {我的名字好长阿}
aslist_test.go:35: 3 {我名字长}
aslist_test.go:35: 4 {我的名字长}
aslist_test.go:45: 排序后遍历
aslist_test.go:47: 0 {我的名字好长阿}
aslist_test.go:47: 1 {我的名字好长}
aslist_test.go:47: 2 {我的名字长}
aslist_test.go:47: 3 {我名字长}
aslist_test.go:47: 4 {我名长}
PASS
4.使用指针结构做元素也可以
asList := NewAsList()
asList.Push(&A{Name: "我的名字好长"})
asList.Push(&A{Name: "我名长"})
asList.Push(&A{Name: "我的名字好长阿"})
asList.Push(&A{Name: "我名字长"})
asList.Push(&A{Name: "我的名字长"})
t.Log("第一次遍历")
asList.Range(func(index int, item interface{}) {
t.Log(index, item)
})
asList.SortWithCompareFunc(func(a, b interface{}) bool {
struct_a := a.(*A)
struct_b := b.(*A)
if len(struct_a.Name) > len(struct_b.Name) {
return true //需要a 排在 b前面返回true
}
return false
})
t.Log("排序后遍历")
asList.Range(func(index int, item interface{}) {
t.Log(index, item)
})
输出结果:
=== RUN TestStructPoint
--- PASS: TestStructPoint (0.00s)
aslist_test.go:60: 第一次遍历
aslist_test.go:62: 0 &{我的名字好长}
aslist_test.go:62: 1 &{我名长}
aslist_test.go:62: 2 &{我的名字好长阿}
aslist_test.go:62: 3 &{我名字长}
aslist_test.go:62: 4 &{我的名字长}
aslist_test.go:72: 排序后遍历
aslist_test.go:74: 0 &{我的名字好长阿}
aslist_test.go:74: 1 &{我的名字好长}
aslist_test.go:74: 2 &{我的名字长}
aslist_test.go:74: 3 &{我名字长}
aslist_test.go:74: 4 &{我名长}
PASS
5.数据结构实现Compare(a, b interface{}) bool方法可直接调用Sort排序
type B struct {
Age int
}
func (self *B) Compare(a, b interface{}) bool {
obj_a := a.(*B)
obj_b := b.(*B)
if obj_a.Age > obj_b.Age {
return true
}
return false
}
调用Sort方法排序
asList := NewAsList()
asList.Push(&B{Age: 121})
asList.Push(&B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(&B{Age: 150})
asList.Push(&B{Age: 69})
t.Log("第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.Sort()
t.Log("排序后遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
看到这里有没有java ArrayList.sort的感脚.输出如下
=== RUN TestAutoSort
--- PASS: TestAutoSort (0.00s)
aslist_test.go:86: 第一次遍历
aslist_test.go:88: 0 &{121}
aslist_test.go:88: 1 &{120}
aslist_test.go:88: 2 &{23}
aslist_test.go:88: 3 &{150}
aslist_test.go:88: 4 &{69}
aslist_test.go:91: 排序后遍历
aslist_test.go:93: 0 &{150}
aslist_test.go:93: 1 &{121}
aslist_test.go:93: 2 &{120}
aslist_test.go:93: 3 &{69}
aslist_test.go:93: 4 &{23}
PASS
6.当你的AsList当中指针和结构体同时存在怎么办?这里教你一个技巧巧妙的解决这个问题
//重新定义结构
type B struct {
Age int
}
//定义一个BInterface来实现指针和结构体的多态
type BInterface interface {
GetAge() int
}
//实现BInterface定义的方法,注意必须是(self B)不能是(self *B)。否则不能做到多态调用
func (self B) GetAge() int {
return self.Age
}
//使用多态接口实现类型的统一转换
func (self *B) Compare(a, b interface{}) bool {
obj_a := a.(BInterface)
obj_b := b.(BInterface)
if obj_a.GetAge() > obj_b.GetAge() {
return true
}
return false
}
6.1测试多态设计思路
asList := NewAsList()
asList.Push(&B{Age: 121})
asList.Push(B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(B{Age: 150})
asList.Push(B{Age: 69})
t.Log("第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.Sort()
t.Log("排序后遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
输出结果如下:
=== RUN TestPolymorphic
--- PASS: TestPolymorphic (0.00s)
aslist_test.go:134: 第一次遍历
aslist_test.go:136: 0 &{121}
aslist_test.go:136: 1 {120}
aslist_test.go:136: 2 &{23}
aslist_test.go:136: 3 {150}
aslist_test.go:136: 4 {69}
aslist_test.go:140: 排序后遍历
aslist_test.go:142: 0 {150}
aslist_test.go:142: 1 &{121}
aslist_test.go:142: 2 {120}
aslist_test.go:142: 3 {69}
aslist_test.go:142: 4 &{23}
PASS
7.实现唯一性校验(Set)功能
asList := NewAsList()
//设置GanerateUniqueId函数,asList将会做唯一性校验
asList.GanerateUniqueId = func(i interface{}) string {
bi := i.(BInterface)
//假设以Age生成唯一id
return fmt.Sprintf("%d", bi.GetAge())
}
asList.Push(&B{Age: 121})
asList.Push(&B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(&B{Age: 150})
asList.Push(&B{Age: 69})
t.Log("测试唯一性功能,第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.Push(&B{Age: 123})
asList.Push(&B{Age: 120}) //重复
asList.Push(&B{Age: 23}) //重复
asList.Push(&B{Age: 150}) //重复
asList.Push(&B{Age: 96})
t.Log("测试唯一性功能,第二次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
输出结果如下:
=== RUN TestGanerateUniqueId
--- PASS: TestGanerateUniqueId (0.00s)
aslist_test.go:79: 测试唯一性功能,第一次遍历
aslist_test.go:81: 0 &{121}
aslist_test.go:81: 1 &{120}
aslist_test.go:81: 2 &{23}
aslist_test.go:81: 3 &{150}
aslist_test.go:81: 4 &{69}
aslist_test.go:89: 测试唯一性功能,第二次遍历
aslist_test.go:91: 0 &{121}
aslist_test.go:91: 1 &{120}
aslist_test.go:91: 2 &{23}
aslist_test.go:91: 3 &{150}
aslist_test.go:91: 4 &{69}
aslist_test.go:91: 5 &{123}
aslist_test.go:91: 6 &{96}
PASS
7.1也许你的结构体过于复杂,并且你不擅长写生成唯一id的函数。没有关系,aslist提供了两个通用的函数供你选择
b1 := B{Age: 1}
b2 := &B{Age: 1}
b3 := B{Age: 2}
b4 := B{Age: 1}
t.Log("SmartGanerateUniqueId,不忽略指针和结构体类型生成唯一id")
//不忽略指针和结构体类型生成唯一id
t.Log("b1", SmartGanerateUniqueId(b1))
t.Log("b2", SmartGanerateUniqueId(b2))
t.Log("b3", SmartGanerateUniqueId(b3))
t.Log("b4", SmartGanerateUniqueId(b4))
t.Log("SmartGanerateUniqueIdWithIgnorePoint,忽略指针和结构体类型生成唯一id")
//忽略指针和结构体类型生成唯一id
t.Log("b1", SmartGanerateUniqueIdWithIgnorePoint(b1))
t.Log("b2", SmartGanerateUniqueIdWithIgnorePoint(b2))
t.Log("b3", SmartGanerateUniqueIdWithIgnorePoint(b3))
t.Log("b4", SmartGanerateUniqueIdWithIgnorePoint(b4))
输出结果如下:
=== RUN TestSmartGanerateUniqueId
--- PASS: TestSmartGanerateUniqueId (0.00s)
aslist_test.go:51: SmartGanerateUniqueId,不忽略指针和结构体类型生成唯一id
aslist_test.go:53: b1 40cf310cccaa86d9e0acc86a4a5e1fe3
aslist_test.go:54: b2 e65e33466c73b3c7ef6692759eb0c61b
aslist_test.go:55: b3 a3628aa02f4eda73de8106404d497476
aslist_test.go:56: b4 40cf310cccaa86d9e0acc86a4a5e1fe3
aslist_test.go:58: SmartGanerateUniqueIdWithIgnorePoint,忽略指针和结构体类型生成唯一id
aslist_test.go:60: b1 40cf310cccaa86d9e0acc86a4a5e1fe3
aslist_test.go:61: b2 40cf310cccaa86d9e0acc86a4a5e1fe3
aslist_test.go:62: b3 a3628aa02f4eda73de8106404d497476
aslist_test.go:63: b4 40cf310cccaa86d9e0acc86a4a5e1fe3
PASS
7.2测试aslist.SmartGanerateUniqueId
asList := NewAsList()
//设置GanerateUniqueId函数,asList将会做唯一性校验
asList.GanerateUniqueId = SmartGanerateUniqueId //aslist.SmartGanerateUniqueId,这里我放的全是指针类型所以不必用SmartGanerateUniqueIdWithIgnorePoint。
asList.Push(&B{Age: 121})
asList.Push(&B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(&B{Age: 150})
asList.Push(&B{Age: 69})
t.Log("测试唯一性功能,第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.Push(&B{Age: 123})
asList.Push(&B{Age: 120}) //重复
asList.Push(&B{Age: 23}) //重复
asList.Push(&B{Age: 150}) //重复
asList.Push(&B{Age: 96})
t.Log("测试唯一性功能,第二次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
输出结果如下:
=== RUN TestGanerateUniqueIdWithSmartGanerateUniqueId
--- PASS: TestGanerateUniqueIdWithSmartGanerateUniqueId (0.00s)
aslist_test.go:105: 测试唯一性功能,第一次遍历
aslist_test.go:107: 0 &{121}
aslist_test.go:107: 1 &{120}
aslist_test.go:107: 2 &{23}
aslist_test.go:107: 3 &{150}
aslist_test.go:107: 4 &{69}
aslist_test.go:115: 测试唯一性功能,第二次遍历
aslist_test.go:117: 0 &{121}
aslist_test.go:117: 1 &{120}
aslist_test.go:117: 2 &{23}
aslist_test.go:117: 3 &{150}
aslist_test.go:117: 4 &{69}
aslist_test.go:117: 5 &{123}
aslist_test.go:117: 6 &{96}
PASS
8.队列操作
asList := NewAsList()
asList.Push(&B{Age: 121})
asList.Push(&B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(&B{Age: 150})
asList.Push(&B{Age: 69})
t.Log("第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.Sort()
t.Log("排序后遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
for i := 1; i < 10; i++ {
t.Log(fmt.Sprintf("第%d次pop:", i), asList.Pop())
}
输出结果如下:
=== RUN TestQueue
--- PASS: TestQueue (0.00s)
aslist_test.go:105: 第一次遍历
aslist_test.go:107: 0 &{121}
aslist_test.go:107: 1 &{120}
aslist_test.go:107: 2 &{23}
aslist_test.go:107: 3 &{150}
aslist_test.go:107: 4 &{69}
aslist_test.go:110: 排序后遍历
aslist_test.go:112: 0 &{150}
aslist_test.go:112: 1 &{121}
aslist_test.go:112: 2 &{120}
aslist_test.go:112: 3 &{69}
aslist_test.go:112: 4 &{23}
aslist_test.go:115: 第1次pop: &{150}
aslist_test.go:115: 第2次pop: &{121}
aslist_test.go:115: 第3次pop: &{120}
aslist_test.go:115: 第4次pop: &{69}
aslist_test.go:115: 第5次pop: &{23}
aslist_test.go:115: 第6次pop: <nil>
aslist_test.go:115: 第7次pop: <nil>
aslist_test.go:115: 第8次pop: <nil>
aslist_test.go:115: 第9次pop: <nil>
PASS
9.序列化为json
asList := NewAsList()
asList.Push(&B{Age: 121})
asList.Push(&B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(&B{Age: 150})
asList.Push(&B{Age: 69})
t.Log("第一次MarshalJson")
t.Log(string(asList.MarshalJson()))
asList.Sort()
t.Log("排序后MarshalJson")
t.Log(string(asList.MarshalJson()))
t.Log("RightPop:", asList.RightPop())
t.Log("LeftPop:", asList.LeftPop())
t.Log(string(asList.MarshalJson()))
输出结果如下:
=== RUN TestMarshalJson
--- PASS: TestMarshalJson (0.00s)
aslist_test.go:126: 第一次MarshalJson
aslist_test.go:127: [{"Age":121},{"Age":120},{"Age":23},{"Age":150},{"Age":69}]
aslist_test.go:129: 排序后MarshalJson
aslist_test.go:130: [{"Age":150},{"Age":121},{"Age":120},{"Age":69},{"Age":23}]
aslist_test.go:131: RightPop: &{23}
aslist_test.go:132: LeftPop: &{150}
aslist_test.go:133: [{"Age":121},{"Age":120},{"Age":69}]
PASS
10.反序列化json
list := []interface{}{}
list = append(list, &B{Age: 121}, &B{Age: 120}, &B{Age: 23}, &B{Age: 150}, &B{Age: 69})
listJson, _ := json.Marshal(list)
//加载json
asList := NewAsList()
asList.Push(&B{Age: 89})
//true表示需要追加 unSerialize反序列化的函数
err := asList.UnmarshalJson(listJson, true, func(itemData []byte) interface{} {
item := new(B)
json.Unmarshal(itemData, item)
return item
})
if err != nil {
t.Error(err)
return
}
t.Log("UnmarshalJson后遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
输出结果如下:
=== RUN TestUnMarshalJson
--- PASS: TestUnMarshalJson (0.00s)
aslist_test.go:163: UnmarshalJson后遍历
aslist_test.go:165: 0 &{89}
aslist_test.go:165: 1 &{121}
aslist_test.go:165: 2 &{120}
aslist_test.go:165: 3 &{23}
aslist_test.go:165: 4 &{150}
aslist_test.go:165: 5 &{69}
PASS
11.ClearTargets和Clear
asList := NewAsList()
asList.Push(&B{Age: 121})
asList.Push(&B{Age: 120})
asList.Push(&B{Age: 23})
asList.Push(&B{Age: 150})
asList.Push(&B{Age: 69})
t.Log("第一次遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.ClearTargets(func(index int, item interface{}) bool {
struct_a := item.(*B)
//把小于Age小于100的全部清除掉
if struct_a.Age < 100 {
return true
}
return false
})
t.Log("ClearTargets后遍历")
asList.Range(func(index int, item interface{}) bool {
t.Log(index, item)
return false //如果要中断遍历,请返回true
})
asList.Clear() //清除所有元素
t.Log("Clear后元素个数为", asList.Length())
输出结果如下:
=== RUN TestClear
--- PASS: TestClear (0.00s)
aslist_test.go:166: 第一次遍历
aslist_test.go:168: 0 &{121}
aslist_test.go:168: 1 &{120}
aslist_test.go:168: 2 &{23}
aslist_test.go:168: 3 &{150}
aslist_test.go:168: 4 &{69}
aslist_test.go:179: ClearTargets后遍历
aslist_test.go:181: 0 &{121}
aslist_test.go:181: 1 &{120}
aslist_test.go:181: 2 &{150}
aslist_test.go:185: Clear后元素个数为 0
PASS