0g-chain/x/committee/keeper/querier.go
rhuairahrighairigh 074bb246a8 add custom errors
2020-03-29 20:43:25 +01:00

181 lines
5.7 KiB
Go

package keeper
import (
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/kava-labs/kava/x/committee/types"
)
// NewQuerier creates a new gov Querier instance
func NewQuerier(keeper Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, sdk.Error) {
switch path[0] {
case types.QueryCommittees:
return queryCommittees(ctx, path[1:], req, keeper)
case types.QueryCommittee:
return queryCommittee(ctx, path[1:], req, keeper)
case types.QueryProposals:
return queryProposals(ctx, path[1:], req, keeper)
case types.QueryProposal:
return queryProposal(ctx, path[1:], req, keeper)
case types.QueryVotes:
return queryVotes(ctx, path[1:], req, keeper)
case types.QueryVote:
return queryVote(ctx, path[1:], req, keeper)
case types.QueryTally:
return queryTally(ctx, path[1:], req, keeper)
default:
return nil, sdk.ErrUnknownRequest(fmt.Sprintf("unknown %s query endpoint", types.ModuleName))
}
}
}
// ---------- Committees ----------
func queryCommittees(ctx sdk.Context, path []string, _ abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
committees := []types.Committee{}
keeper.IterateCommittees(ctx, func(com types.Committee) bool {
committees = append(committees, com)
return false
})
bz, err := codec.MarshalJSONIndent(keeper.cdc, committees)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
func queryCommittee(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params types.QueryCommitteeParams
err := keeper.cdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
committee, found := keeper.GetCommittee(ctx, params.CommitteeID)
if !found {
return nil, types.ErrUnknownCommittee(types.DefaultCodespace, params.CommitteeID)
}
bz, err := codec.MarshalJSONIndent(keeper.cdc, committee)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// ---------- Proposals ----------
func queryProposals(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params types.QueryCommitteeParams
err := keeper.cdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
proposals := []types.Proposal{}
keeper.IterateProposals(ctx, func(p types.Proposal) bool {
if p.CommitteeID == params.CommitteeID {
proposals = append(proposals, p)
}
return false
})
bz, err := codec.MarshalJSONIndent(keeper.cdc, proposals)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
func queryProposal(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params types.QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
proposal, found := keeper.GetProposal(ctx, params.ProposalID)
if !found {
return nil, types.ErrUnknownProposal(types.DefaultCodespace, params.ProposalID)
}
bz, err := codec.MarshalJSONIndent(keeper.cdc, proposal)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// ---------- Votes ----------
func queryVotes(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params types.QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
votes := []types.Vote{}
keeper.IterateVotes(ctx, params.ProposalID, func(v types.Vote) bool {
votes = append(votes, v)
return false
})
bz, err := codec.MarshalJSONIndent(keeper.cdc, votes)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
func queryVote(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params types.QueryVoteParams
err := keeper.cdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
vote, found := keeper.GetVote(ctx, params.ProposalID, params.Voter)
if !found {
return nil, types.ErrUnknownVote(types.DefaultCodespace, params.ProposalID, params.Voter)
}
bz, err := codec.MarshalJSONIndent(keeper.cdc, vote)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}
// ---------- Tally ----------
func queryTally(ctx sdk.Context, path []string, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
var params types.QueryProposalParams
err := keeper.cdc.UnmarshalJSON(req.Data, &params)
if err != nil {
return nil, sdk.ErrUnknownRequest(sdk.AppendMsgToErr("incorrectly formatted request data", err.Error()))
}
_, found := keeper.GetProposal(ctx, params.ProposalID)
if !found {
return nil, types.ErrUnknownProposal(types.DefaultCodespace, params.ProposalID)
}
numVotes := keeper.TallyVotes(ctx, params.ProposalID)
bz, err := codec.MarshalJSONIndent(keeper.cdc, numVotes)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return bz, nil
}