58 lines
1.8 KiB
Go
58 lines
1.8 KiB
Go
package types
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import (
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"sort"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/cosmos/cosmos-sdk/codec"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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)
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// HistoricalInfo contains the historical information that gets stored at each height
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type HistoricalInfo struct {
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Header abci.Header `json:"header" yaml:"header"`
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ValSet Validators `json:"valset" yaml:"valset"`
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}
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// NewHistoricalInfo will create a historical information struct from header and valset
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// it will first sort valset before inclusion into historical info
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func NewHistoricalInfo(header abci.Header, valSet Validators) HistoricalInfo {
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sort.Sort(valSet)
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return HistoricalInfo{
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Header: header,
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ValSet: valSet,
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}
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}
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// MustMarshalHistoricalInfo wll marshal historical info and panic on error
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func MustMarshalHistoricalInfo(cdc *codec.Codec, hi HistoricalInfo) []byte {
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return cdc.MustMarshalBinaryLengthPrefixed(hi)
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}
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// MustUnmarshalHistoricalInfo wll unmarshal historical info and panic on error
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func MustUnmarshalHistoricalInfo(cdc *codec.Codec, value []byte) HistoricalInfo {
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hi, err := UnmarshalHistoricalInfo(cdc, value)
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if err != nil {
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panic(err)
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}
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return hi
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}
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// UnmarshalHistoricalInfo will unmarshal historical info and return any error
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func UnmarshalHistoricalInfo(cdc *codec.Codec, value []byte) (hi HistoricalInfo, err error) {
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err = cdc.UnmarshalBinaryLengthPrefixed(value, &hi)
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return hi, err
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}
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// ValidateBasic will ensure HistoricalInfo is not nil and sorted
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func ValidateBasic(hi HistoricalInfo) error {
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if len(hi.ValSet) == 0 {
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return sdkerrors.Wrap(ErrInvalidHistoricalInfo, "validator set is empty")
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}
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if !sort.IsSorted(Validators(hi.ValSet)) {
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return sdkerrors.Wrap(ErrInvalidHistoricalInfo, "validator set is not sorted by address")
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}
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return nil
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}
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