/
querier.go
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/
querier.go
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package keeper
import (
"fmt"
"strings"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/BITCOIVA/Bitcoiva-sdk/client"
"github.com/BITCOIVA/Bitcoiva-sdk/codec"
sdk "github.com/BITCOIVA/Bitcoiva-sdk/types"
"github.com/BITCOIVA/Bitcoiva-sdk/x/staking/types"
)
// creates a querier for staking REST endpoints
func NewQuerier(k Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err sdk.Error) {
switch path[0] {
case types.QueryValidators:
return queryValidators(ctx, req, k)
case types.QueryValidator:
return queryValidator(ctx, req, k)
case types.QueryValidatorDelegations:
return queryValidatorDelegations(ctx, req, k)
case types.QueryValidatorUnbondingDelegations:
return queryValidatorUnbondingDelegations(ctx, req, k)
case types.QueryDelegation:
return queryDelegation(ctx, req, k)
case types.QueryUnbondingDelegation:
return queryUnbondingDelegation(ctx, req, k)
case types.QueryDelegatorDelegations:
return queryDelegatorDelegations(ctx, req, k)
case types.QueryDelegatorUnbondingDelegations:
return queryDelegatorUnbondingDelegations(ctx, req, k)
case types.QueryRedelegations:
return queryRedelegations(ctx, req, k)
case types.QueryDelegatorValidators:
return queryDelegatorValidators(ctx, req, k)
case types.QueryDelegatorValidator:
return queryDelegatorValidator(ctx, req, k)
case types.QueryPool:
return queryPool(ctx, k)
case types.QueryParameters:
return queryParameters(ctx, k)
default:
return nil, sdk.ErrUnknownRequest("unknown staking query endpoint")
}
}
}
func queryValidators(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryValidatorsParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
validators := k.GetAllValidators(ctx)
filteredVals := make([]types.Validator, 0, len(validators))
for _, val := range validators {
if strings.ToLower(val.GetStatus().String()) == strings.ToLower(params.Status) {
filteredVals = append(filteredVals, val)
}
}
start, end := client.Paginate(len(filteredVals), params.Page, params.Limit, int(k.GetParams(ctx).MaxValidators))
if start < 0 || end < 0 {
filteredVals = []types.Validator{}
} else {
filteredVals = filteredVals[start:end]
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, filteredVals)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to JSON marshal result: %s", err.Error()))
}
return res, nil
}
func queryValidator(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryValidatorParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
validator, found := k.GetValidator(ctx, params.ValidatorAddr)
if !found {
return nil, types.ErrNoValidatorFound(types.DefaultCodespace)
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, validator)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryValidatorDelegations(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryValidatorParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
delegations := k.GetValidatorDelegations(ctx, params.ValidatorAddr)
delegationResps, err := delegationsToDelegationResponses(ctx, k, delegations)
if err != nil {
return nil, sdk.ErrInternal(err.Error())
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, delegationResps)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to marshal result to JSON", err.Error()))
}
return res, nil
}
func queryValidatorUnbondingDelegations(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryValidatorParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
unbonds := k.GetUnbondingDelegationsFromValidator(ctx, params.ValidatorAddr)
res, err := codec.MarshalJSONIndent(types.ModuleCdc, unbonds)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryDelegatorDelegations(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryDelegatorParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
delegations := k.GetAllDelegatorDelegations(ctx, params.DelegatorAddr)
delegationResps, err := delegationsToDelegationResponses(ctx, k, delegations)
if err != nil {
return nil, sdk.ErrInternal(err.Error())
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, delegationResps)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to marshal result to JSON", err.Error()))
}
return res, nil
}
func queryDelegatorUnbondingDelegations(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryDelegatorParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
unbondingDelegations := k.GetAllUnbondingDelegations(ctx, params.DelegatorAddr)
res, err := codec.MarshalJSONIndent(types.ModuleCdc, unbondingDelegations)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryDelegatorValidators(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryDelegatorParams
stakingParams := k.GetParams(ctx)
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
validators := k.GetDelegatorValidators(ctx, params.DelegatorAddr, stakingParams.MaxValidators)
res, err := codec.MarshalJSONIndent(types.ModuleCdc, validators)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryDelegatorValidator(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryBondsParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
validator, err := k.GetDelegatorValidator(ctx, params.DelegatorAddr, params.ValidatorAddr)
if err != nil {
return nil, sdk.ErrInternal(err.Error())
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, validator)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryDelegation(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryBondsParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
delegation, found := k.GetDelegation(ctx, params.DelegatorAddr, params.ValidatorAddr)
if !found {
return nil, types.ErrNoDelegation(types.DefaultCodespace)
}
delegationResp, err := delegationToDelegationResponse(ctx, k, delegation)
if err != nil {
return nil, sdk.ErrInternal(err.Error())
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, delegationResp)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to marshal result to JSON", err.Error()))
}
return res, nil
}
func queryUnbondingDelegation(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryBondsParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
}
unbond, found := k.GetUnbondingDelegation(ctx, params.DelegatorAddr, params.ValidatorAddr)
if !found {
return nil, types.ErrNoUnbondingDelegation(types.DefaultCodespace)
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, unbond)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryRedelegations(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
var params types.QueryRedelegationParams
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdk.ErrUnknownRequest(string(req.Data))
}
var redels []types.Redelegation
if !params.DelegatorAddr.Empty() && !params.SrcValidatorAddr.Empty() && !params.DstValidatorAddr.Empty() {
redel, found := k.GetRedelegation(ctx, params.DelegatorAddr, params.SrcValidatorAddr, params.DstValidatorAddr)
if !found {
return nil, types.ErrNoRedelegation(types.DefaultCodespace)
}
redels = []types.Redelegation{redel}
} else if params.DelegatorAddr.Empty() && !params.SrcValidatorAddr.Empty() && params.DstValidatorAddr.Empty() {
redels = k.GetRedelegationsFromSrcValidator(ctx, params.SrcValidatorAddr)
} else {
redels = k.GetAllRedelegations(ctx, params.DelegatorAddr, params.SrcValidatorAddr, params.DstValidatorAddr)
}
redelResponses, err := redelegationsToRedelegationResponses(ctx, k, redels)
if err != nil {
return nil, sdk.ErrInternal(err.Error())
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, redelResponses)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to marshal result to JSON", err.Error()))
}
return res, nil
}
func queryPool(ctx sdk.Context, k Keeper) ([]byte, sdk.Error) {
bondDenom := k.BondDenom(ctx)
bondedPool := k.GetBondedPool(ctx)
notBondedPool := k.GetNotBondedPool(ctx)
if bondedPool == nil || notBondedPool == nil {
return nil, sdk.ErrInternal("pool accounts haven't been set")
}
pool := types.NewPool(
notBondedPool.GetCoins().AmountOf(bondDenom),
bondedPool.GetCoins().AmountOf(bondDenom),
)
res, err := codec.MarshalJSONIndent(types.ModuleCdc, pool)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
func queryParameters(ctx sdk.Context, k Keeper) ([]byte, sdk.Error) {
params := k.GetParams(ctx)
res, err := codec.MarshalJSONIndent(types.ModuleCdc, params)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}
//______________________________________________________
// util
func delegationToDelegationResponse(ctx sdk.Context, k Keeper, del types.Delegation) (types.DelegationResponse, sdk.Error) {
val, found := k.GetValidator(ctx, del.ValidatorAddress)
if !found {
return types.DelegationResponse{}, types.ErrNoValidatorFound(types.DefaultCodespace)
}
return types.NewDelegationResp(
del.DelegatorAddress,
del.ValidatorAddress,
del.Shares,
val.TokensFromShares(del.Shares).TruncateInt(),
), nil
}
func delegationsToDelegationResponses(
ctx sdk.Context, k Keeper, delegations types.Delegations,
) (types.DelegationResponses, sdk.Error) {
resp := make(types.DelegationResponses, len(delegations), len(delegations))
for i, del := range delegations {
delResp, err := delegationToDelegationResponse(ctx, k, del)
if err != nil {
return nil, err
}
resp[i] = delResp
}
return resp, nil
}
func redelegationsToRedelegationResponses(
ctx sdk.Context, k Keeper, redels types.Redelegations,
) (types.RedelegationResponses, sdk.Error) {
resp := make(types.RedelegationResponses, len(redels), len(redels))
for i, redel := range redels {
val, found := k.GetValidator(ctx, redel.ValidatorDstAddress)
if !found {
return nil, types.ErrNoValidatorFound(types.DefaultCodespace)
}
entryResponses := make([]types.RedelegationEntryResponse, len(redel.Entries), len(redel.Entries))
for j, entry := range redel.Entries {
entryResponses[j] = types.NewRedelegationEntryResponse(
entry.CreationHeight,
entry.CompletionTime,
entry.SharesDst,
entry.InitialBalance,
val.TokensFromShares(entry.SharesDst).TruncateInt(),
)
}
resp[i] = types.NewRedelegationResponse(
redel.DelegatorAddress,
redel.ValidatorSrcAddress,
redel.ValidatorDstAddress,
entryResponses,
)
}
return resp, nil
}