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params.go
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params.go
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package types
import (
"fmt"
"strings"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
const (
// DefaultHostEnabled is the default value for the host param (set to true)
DefaultHostEnabled = true
)
var (
// KeyHostEnabled is the store key for HostEnabled Params
KeyHostEnabled = []byte("HostEnabled")
// KeyAllowMessages is the store key for the AllowMessages Params
KeyAllowMessages = []byte("AllowMessages")
)
// ParamKeyTable type declaration for parameters
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
// NewParams creates a new parameter configuration for the host submodule
func NewParams(enableHost bool, allowMsgs []string) Params {
return Params{
HostEnabled: enableHost,
AllowMessages: allowMsgs,
}
}
// DefaultParams is the default parameter configuration for the host submodule
func DefaultParams() Params {
return NewParams(DefaultHostEnabled, nil)
}
// Validate validates all host submodule parameters
func (p Params) Validate() error {
if err := validateEnabled(p.HostEnabled); err != nil {
return err
}
if err := validateAllowlist(p.AllowMessages); err != nil {
return err
}
return nil
}
// ParamSetPairs implements params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyHostEnabled, p.HostEnabled, validateEnabled),
paramtypes.NewParamSetPair(KeyAllowMessages, p.AllowMessages, validateAllowlist),
}
}
func validateEnabled(i interface{}) error {
_, ok := i.(bool)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validateAllowlist(i interface{}) error {
allowMsgs, ok := i.([]string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
for _, typeURL := range allowMsgs {
if strings.TrimSpace(typeURL) == "" {
return fmt.Errorf("parameter must not contain empty strings: %s", allowMsgs)
}
}
return nil
}