69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package redis
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import (
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"context"
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"github.com/go-redis/redis/v8"
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"code.1533b4dc0.de/prskr/nurse/check"
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"code.1533b4dc0.de/prskr/nurse/config"
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"code.1533b4dc0.de/prskr/nurse/grammar"
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"code.1533b4dc0.de/prskr/nurse/validation"
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)
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var _ check.SystemChecker = (*GetCheck)(nil)
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type GetCheck struct {
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redis.UniversalClient
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validators validation.Validator[redis.Cmder]
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Key string
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}
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func (g *GetCheck) Execute(ctx check.Context) error {
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for {
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select {
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case <-ctx.Done():
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return ctx.Err()
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default:
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attemptCtx, cancel := ctx.AttemptContext()
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err := g.executeAttempt(attemptCtx)
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cancel()
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if err == nil {
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return nil
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}
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}
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}
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}
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func (g *GetCheck) executeAttempt(ctx context.Context) error {
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cmd := g.Get(ctx, g.Key)
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if err := cmd.Err(); err != nil {
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return err
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}
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return g.validators.Validate(cmd)
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}
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func (g *GetCheck) UnmarshalCheck(c grammar.Check, lookup config.ServerLookup) error {
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const serverAndKeyArgsNumber = 2
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inst := c.Initiator
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if err := grammar.ValidateParameterCount(inst.Params, serverAndKeyArgsNumber); err != nil {
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return err
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}
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var err error
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if g.UniversalClient, err = clientFromParam(inst.Params[0], lookup); err != nil {
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return err
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}
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if g.Key, err = inst.Params[1].AsString(); err != nil {
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return err
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}
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if g.validators, err = registry.ValidatorsForFilters(c.Validators); err != nil {
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return err
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}
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return nil
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}
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