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65 lines
1.8 KiB
65 lines
1.8 KiB
package sink
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import (
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"errors"
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"strings"
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"github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/state/indexer"
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"github.com/tendermint/tendermint/state/indexer/sink/kv"
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"github.com/tendermint/tendermint/state/indexer/sink/null"
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"github.com/tendermint/tendermint/state/indexer/sink/psql"
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)
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// EventSinksFromConfig constructs a slice of indexer.EventSink using the provided
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// configuration.
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//
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//nolint:lll
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func EventSinksFromConfig(cfg *config.Config, dbProvider config.DBProvider, chainID string) ([]indexer.EventSink, error) {
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if len(cfg.TxIndex.Indexer) == 0 {
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return []indexer.EventSink{null.NewEventSink()}, nil
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}
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// check for duplicated sinks
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sinks := map[string]struct{}{}
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for _, s := range cfg.TxIndex.Indexer {
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sl := strings.ToLower(s)
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if _, ok := sinks[sl]; ok {
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return nil, errors.New("found duplicated sinks, please check the tx-index section in the config.toml")
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}
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sinks[sl] = struct{}{}
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}
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eventSinks := []indexer.EventSink{}
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for k := range sinks {
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switch indexer.EventSinkType(k) {
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case indexer.NULL:
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// When we see null in the config, the eventsinks will be reset with the
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// nullEventSink.
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return []indexer.EventSink{null.NewEventSink()}, nil
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case indexer.KV:
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store, err := dbProvider(&config.DBContext{ID: "tx_index", Config: cfg})
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if err != nil {
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return nil, err
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}
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eventSinks = append(eventSinks, kv.NewEventSink(store))
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case indexer.PSQL:
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conn := cfg.TxIndex.PsqlConn
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if conn == "" {
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return nil, errors.New("the psql connection settings cannot be empty")
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}
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es, err := psql.NewEventSink(conn, chainID)
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if err != nil {
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return nil, err
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}
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eventSinks = append(eventSinks, es)
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default:
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return nil, errors.New("unsupported event sink type")
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}
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}
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return eventSinks, nil
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}
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