cel

package
v1.27.0 Latest Latest
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 Go to latest Published: Oct 17, 2023 License: Apache-2.0 Imports: 11 Imported by: 0

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Types

type ConditionalFilter 

type ConditionalFilter struct {
	Expression *cel.Program
	Variables  []Variable
}

ConditionalFilter structure holds both CEL Program and variable definitions so that it can be evaluated with the new variable values

func CompileExpression 

func CompileExpression(expression string) (ConditionalFilter, error)

CompileExpression accepts the expression string from the Filter spec, parses variables and their types, compiles expression into CEL Program

func (*ConditionalFilter) Filter 

func (c *ConditionalFilter) Filter(ctx context.Context, event cloudevents.Event) eventfilter.FilterResult

Filter parses Event payload values defined as the expression variables, asserts their types, and executes CEL Program. If expression result is true, Event passes the filter.

type Variable 

type Variable struct {
	Name string
	Path string
	Type string
}

Variable contains the meta data required to parse event payload and execute CEL Program

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