88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
package keeper
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import (
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"encoding/hex"
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"github.com/cosmos/cosmos-sdk/client"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/cosmos/cosmos-sdk/x/evidence/exported"
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"github.com/cosmos/cosmos-sdk/x/evidence/types"
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abci "github.com/tendermint/tendermint/abci/types"
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)
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func NewQuerier(k Keeper) sdk.Querier {
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return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, error) {
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var (
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res []byte
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err error
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)
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switch path[0] {
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case types.QueryEvidence:
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res, err = queryEvidence(ctx, req, k)
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case types.QueryAllEvidence:
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res, err = queryAllEvidence(ctx, req, k)
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default:
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err = sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint: %s", types.ModuleName, path[0])
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}
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return res, err
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}
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}
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func queryEvidence(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
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var params types.QueryEvidenceParams
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err := k.cdc.UnmarshalJSON(req.Data, ¶ms)
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if err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
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}
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hash, err := hex.DecodeString(params.EvidenceHash)
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if err != nil {
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return nil, sdkerrors.Wrap(err, "failed to decode evidence hash string query")
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}
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evidence, ok := k.GetEvidence(ctx, hash)
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if !ok {
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return nil, sdkerrors.Wrap(types.ErrNoEvidenceExists, params.EvidenceHash)
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}
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res, err := codec.MarshalJSONIndent(k.cdc, evidence)
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if err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
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return res, nil
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}
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func queryAllEvidence(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
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var params types.QueryAllEvidenceParams
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err := k.cdc.UnmarshalJSON(req.Data, ¶ms)
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if err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
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}
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evidence := k.GetAllEvidence(ctx)
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start, end := client.Paginate(len(evidence), params.Page, params.Limit, 100)
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if start < 0 || end < 0 {
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evidence = []exported.Evidence{}
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} else {
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evidence = evidence[start:end]
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}
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res, err := codec.MarshalJSONIndent(k.cdc, evidence)
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if err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
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return res, nil
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}
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