69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
package keeper
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import (
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abci "github.com/tendermint/tendermint/abci/types"
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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/ibc/04-channel/types"
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)
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// QuerierChannels defines the sdk.Querier to query all the channels.
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func QuerierChannels(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
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var params types.QueryAllChannelsParams
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if err := k.cdc.UnmarshalJSON(req.Data, ¶ms); err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
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}
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channels := k.GetAllChannels(ctx)
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start, end := client.Paginate(len(channels), params.Page, params.Limit, 100)
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if start < 0 || end < 0 {
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channels = []types.IdentifiedChannel{}
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} else {
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channels = channels[start:end]
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}
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res, err := codec.MarshalJSONIndent(k.cdc, channels)
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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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// QuerierConnectionChannels defines the sdk.Querier to query all the channels for a connection.
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func QuerierConnectionChannels(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
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var params types.QueryConnectionChannelsParams
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if err := k.cdc.UnmarshalJSON(req.Data, ¶ms); err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
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}
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channels := k.GetAllChannels(ctx)
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connectionChannels := []types.IdentifiedChannel{}
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for _, channel := range channels {
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if channel.Channel.ConnectionHops[0] == params.Connection {
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connectionChannels = append(connectionChannels, channel)
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}
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}
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start, end := client.Paginate(len(connectionChannels), params.Page, params.Limit, 100)
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if start < 0 || end < 0 {
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connectionChannels = []types.IdentifiedChannel{}
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} else {
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connectionChannels = channels[start:end]
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}
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res, err := codec.MarshalJSONIndent(k.cdc, connectionChannels)
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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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