xfilter

README

xfilter

Documentation

Index

• func Assert(ctx *Context, rule string) error
• func Filter(ctx *Context, list []map[string]interface{}) ([]map[string]interface{}, error)
• func ParseFilter(rule string) ([]interface{}, error)
• type Condition
  • func NewCondition(filters []interface{}) (Condition, error)
  • func NewConditionGroup(filters []interface{}) (Condition, error)
• type ConditionGroup
  • func (t *ConditionGroup) Assert(ctx *Context) (err error)
  • func (t *ConditionGroup) Name() string
• type ConditionSingle
  • func NewConditionSingle(filter []interface{}) (*ConditionSingle, error)
  • func (t *ConditionSingle) Assert(ctx *Context) error
  • func (t *ConditionSingle) Name() string
• type Context
  • func NewContext(ctxs ...context.Context) *Context
  • func (t *Context) Ctx(k string) interface{}
  • func (t *Context) Get(k string) (interface{}, bool)
  • func (t *Context) Set(k string, v interface{})
• type Logic
  • func ToLogic(s string) Logic
  • func (t Logic) String() string
• type Operation
  • func NewOperation(operationName string) (Operation, error)
• type OperationBetween
  • func (t *OperationBetween) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationBetween) Expect(value interface{}) (interface{}, error)
  • func (t *OperationBetween) Name() string
• type OperationEqual
  • func (t *OperationEqual) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationEqual) Expect(value interface{}) (interface{}, error)
  • func (t *OperationEqual) Name() string
• type OperationEqualGT
  • func (t *OperationEqualGT) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationEqualGT) Name() string
• type OperationEqualGTE
  • func (t *OperationEqualGTE) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationEqualGTE) Name() string
• type OperationEqualLT
  • func (t *OperationEqualLT) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationEqualLT) Name() string
• type OperationEqualLTE
  • func (t *OperationEqualLTE) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationEqualLTE) Name() string
• type OperationEqualNot
  • func (t *OperationEqualNot) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationEqualNot) Name() string
• type OperationFactory
  • func (t *OperationFactory) Discovery(name string) Operation
  • func (t *OperationFactory) Register(operation Operation)
• type OperationHas
  • func (t *OperationHas) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationHas) Expect(value interface{}) (interface{}, error)
  • func (t *OperationHas) Name() string
• type OperationIn
  • func (t *OperationIn) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationIn) Expect(value interface{}) (interface{}, error)
  • func (t *OperationIn) Name() string
• type OperationMatch
  • func (t *OperationMatch) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationMatch) Expect(value interface{}) (interface{}, error)
  • func (t *OperationMatch) Name() string
• type OperationNotIn
  • func (t *OperationNotIn) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationNotIn) Name() string
• type OperationNotMatch
  • func (t *OperationNotMatch) Assert(ctx *Context, variable Variable, expect interface{}) bool
  • func (t *OperationNotMatch) Name() string
• type Variable
  • func NewVariable(name string) (Variable, error)
• type VariableCreator
• type VariableCtx
  • func (t *VariableCtx) Name() string
  • func (t *VariableCtx) Value(ctx *Context) interface{}
• type VariableFactory
  • func (t *VariableFactory) Discovery(name string) Variable
  • func (t *VariableFactory) Register(name string, creator VariableCreator)
• type VariableTime
  • func (t *VariableTime) Name() string
  • func (t *VariableTime) Value(ctx *Context) interface{}

Functions

func Assert

func Assert(ctx *Context, rule string) error

Assert filter 规则断言

func Filter

func Filter(ctx *Context, list []map[string]interface{}) ([]map[string]interface{}, error)

Filter 列表数据过滤

func ParseFilter

func ParseFilter(rule string) ([]interface{}, error)

ParseFilter 解析 filter 规则

Types

type Condition

type Condition interface {
	Name() string          // 条件描述
	Assert(*Context) error // 条件断言
}

Condition 断言条件接口

func NewCondition

func NewCondition(filters []interface{}) (Condition, error)

NewCondition 初始化复合条件

func NewConditionGroup

func NewConditionGroup(filters []interface{}) (Condition, error)

NewConditionGroup 初始化群组条件实例

type ConditionGroup

type ConditionGroup struct {
	Logic      Logic
	Conditions []Condition
}

ConditionGroup 群组条件, 包含 Logic 关系

func (*ConditionGroup) Assert

func (t *ConditionGroup) Assert(ctx *Context) (err error)

Assert ...

func (*ConditionGroup) Name

func (t *ConditionGroup) Name() string

Name ...

type ConditionSingle

type ConditionSingle struct {
	Variable  Variable    // 变量
	Operation Operation   // 操作符
	Expect    interface{} // 预期结果
}

ConditionSingle 单个条件

func NewConditionSingle

func NewConditionSingle(filter []interface{}) (*ConditionSingle, error)

NewConditionSingle 初始化单个条件实例

func (*ConditionSingle) Assert

func (t *ConditionSingle) Assert(ctx *Context) error

Assert ...

func (*ConditionSingle) Name

func (t *ConditionSingle) Name() string

Name ...

type Context

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

Context filter 上下文

func NewContext

func NewContext(ctxs ...context.Context) *Context

NewContext ...

func (*Context) Ctx

func (t *Context) Ctx(k string) interface{}

Ctx 读取 ctx 数据

func (*Context) Get

func (t *Context) Get(k string) (interface{}, bool)

Get 读取数据

func (*Context) Set

func (t *Context) Set(k string, v interface{})

Set 写入数据

type Logic

type Logic string

Logic 条件组逻辑关系

const (
	LogicAnd Logic = "and"
	LogicOr  Logic = "or"
)

...

func ToLogic

func ToLogic(s string) Logic

ToLogic ...

func (Logic) String

func (t Logic) String() string

String ...

type Operation

type Operation interface {
	Name() string                                                   // 操作描述
	Expect(value interface{}) (interface{}, error)                  // 操作预期值
	Assert(ctx *Context, variable Variable, value interface{}) bool // 操作断言
}

Operation 操作接口

func NewOperation

func NewOperation(operationName string) (Operation, error)

NewOperation ...

type OperationBetween

type OperationBetween struct{}

OperationBetween ...

func (*OperationBetween) Assert

func (t *OperationBetween) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationBetween) Expect

func (t *OperationBetween) Expect(value interface{}) (interface{}, error)

Expect ...

func (*OperationBetween) Name

func (t *OperationBetween) Name() string

Name ...

type OperationEqual

type OperationEqual struct{}

OperationEqual ...

func (*OperationEqual) Assert

func (t *OperationEqual) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationEqual) Expect

func (t *OperationEqual) Expect(value interface{}) (interface{}, error)

Expect ...

func (*OperationEqual) Name

func (t *OperationEqual) Name() string

Name ...

type OperationEqualGT

type OperationEqualGT struct {
	OperationEqual
}

OperationEqualGT ...

func (*OperationEqualGT) Assert

func (t *OperationEqualGT) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationEqualGT) Name

func (t *OperationEqualGT) Name() string

Name ...

type OperationEqualGTE

type OperationEqualGTE struct {
	OperationEqual
}

OperationEqualGTE ...

func (*OperationEqualGTE) Assert

func (t *OperationEqualGTE) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationEqualGTE) Name

func (t *OperationEqualGTE) Name() string

Name ...

type OperationEqualLT

type OperationEqualLT struct {
	OperationEqual
}

OperationEqualLT ...

func (*OperationEqualLT) Assert

func (t *OperationEqualLT) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationEqualLT) Name

func (t *OperationEqualLT) Name() string

Name ...

type OperationEqualLTE

type OperationEqualLTE struct {
	OperationEqual
}

OperationEqualLTE ...

func (*OperationEqualLTE) Assert

func (t *OperationEqualLTE) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationEqualLTE) Name

func (t *OperationEqualLTE) Name() string

Name ...

type OperationEqualNot

type OperationEqualNot struct {
	OperationEqual
}

OperationEqualNot ...

func (*OperationEqualNot) Assert

func (t *OperationEqualNot) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationEqualNot) Name

func (t *OperationEqualNot) Name() string

Name ...

type OperationFactory

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

OperationFactory 操作实例工厂

func (*OperationFactory) Discovery

func (t *OperationFactory) Discovery(name string) Operation

Discovery 发现操作实例

func (*OperationFactory) Register

func (t *OperationFactory) Register(operation Operation)

Register 注册操作实例

type OperationHas

type OperationHas struct{}

OperationHas ...

func (*OperationHas) Assert

func (t *OperationHas) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationHas) Expect

func (t *OperationHas) Expect(value interface{}) (interface{}, error)

Expect ...

func (*OperationHas) Name

func (t *OperationHas) Name() string

Name ...

type OperationIn

type OperationIn struct{}

OperationIn ...

func (*OperationIn) Assert

func (t *OperationIn) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationIn) Expect

func (t *OperationIn) Expect(value interface{}) (interface{}, error)

Expect ...

func (*OperationIn) Name

func (t *OperationIn) Name() string

Name ...

type OperationMatch

type OperationMatch struct{}

OperationMatch ...

func (*OperationMatch) Assert

func (t *OperationMatch) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationMatch) Expect

func (t *OperationMatch) Expect(value interface{}) (interface{}, error)

Expect ...

func (*OperationMatch) Name

func (t *OperationMatch) Name() string

Name ...

type OperationNotIn

type OperationNotIn struct {
	OperationIn
}

OperationNotIn ...

func (*OperationNotIn) Assert

func (t *OperationNotIn) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationNotIn) Name

func (t *OperationNotIn) Name() string

Name ...

type OperationNotMatch

type OperationNotMatch struct {
	OperationMatch
}

OperationNotMatch ...

func (*OperationNotMatch) Assert

func (t *OperationNotMatch) Assert(ctx *Context, variable Variable, expect interface{}) bool

Assert ...

func (*OperationNotMatch) Name

func (t *OperationNotMatch) Name() string

Name ...

type Variable

type Variable interface {
	Name() string               // 变量名称
	Value(*Context) interface{} // 变量值
}

Variable 变量接口

func NewVariable

func NewVariable(name string) (Variable, error)

NewVariable ...

type VariableCreator

type VariableCreator = func(string) Variable

VariableCreator 变量生成器

type VariableCtx

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

VariableCtx ...

func (*VariableCtx) Name

func (t *VariableCtx) Name() string

Name ...

func (*VariableCtx) Value

func (t *VariableCtx) Value(ctx *Context) interface{}

Value ...

type VariableFactory

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

VariableFactory 变量实例工厂

func (*VariableFactory) Discovery

func (t *VariableFactory) Discovery(name string) Variable

Discovery 发现变量实例

func (*VariableFactory) Register

func (t *VariableFactory) Register(name string, creator VariableCreator)

Register 注册变量实例

type VariableTime

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

VariableTime ...

func (*VariableTime) Name

func (t *VariableTime) Name() string

Name ...

func (*VariableTime) Value

func (t *VariableTime) Value(ctx *Context) interface{}

Value ...