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package types
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import (
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"fmt"
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amino "github.com/tendermint/go-amino"
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abci "github.com/tendermint/tendermint/abci/types"
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tmpubsub "github.com/tendermint/tendermint/libs/pubsub"
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tmquery "github.com/tendermint/tendermint/libs/pubsub/query"
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)
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// Reserved event types (alphabetically sorted).
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const (
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// Block level events for mass consumption by users.
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// These events are triggered from the state package,
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// after a block has been committed.
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// These are also used by the tx indexer for async indexing.
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// All of this data can be fetched through the rpc.
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EventNewBlock = "NewBlock"
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EventNewBlockHeader = "NewBlockHeader"
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EventTx = "Tx"
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EventValidatorSetUpdates = "ValidatorSetUpdates"
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// Internal consensus events.
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// These are used for testing the consensus state machine.
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// They can also be used to build real-time consensus visualizers.
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EventCompleteProposal = "CompleteProposal"
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EventLock = "Lock"
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EventNewRound = "NewRound"
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EventNewRoundStep = "NewRoundStep"
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EventPolka = "Polka"
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EventRelock = "Relock"
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EventTimeoutPropose = "TimeoutPropose"
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EventTimeoutWait = "TimeoutWait"
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EventUnlock = "Unlock"
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EventValidBlock = "ValidBlock"
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EventVote = "Vote"
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)
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///////////////////////////////////////////////////////////////////////////////
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// ENCODING / DECODING
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///////////////////////////////////////////////////////////////////////////////
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// TMEventData implements events.EventData.
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type TMEventData interface {
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// empty interface
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}
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func RegisterEventDatas(cdc *amino.Codec) {
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cdc.RegisterInterface((*TMEventData)(nil), nil)
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cdc.RegisterConcrete(EventDataNewBlock{}, "tendermint/event/NewBlock", nil)
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cdc.RegisterConcrete(EventDataNewBlockHeader{}, "tendermint/event/NewBlockHeader", nil)
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cdc.RegisterConcrete(EventDataTx{}, "tendermint/event/Tx", nil)
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cdc.RegisterConcrete(EventDataRoundState{}, "tendermint/event/RoundState", nil)
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cdc.RegisterConcrete(EventDataNewRound{}, "tendermint/event/NewRound", nil)
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cdc.RegisterConcrete(EventDataCompleteProposal{}, "tendermint/event/CompleteProposal", nil)
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cdc.RegisterConcrete(EventDataVote{}, "tendermint/event/Vote", nil)
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cdc.RegisterConcrete(EventDataValidatorSetUpdates{}, "tendermint/event/ValidatorSetUpdates", nil)
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cdc.RegisterConcrete(EventDataString(""), "tendermint/event/ProposalString", nil)
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}
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// Most event messages are basic types (a block, a transaction)
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// but some (an input to a call tx or a receive) are more exotic
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type EventDataNewBlock struct {
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Block *Block `json:"block"`
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ResultBeginBlock abci.ResponseBeginBlock `json:"result_begin_block"`
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ResultEndBlock abci.ResponseEndBlock `json:"result_end_block"`
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}
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type EventDataNewBlockHeader struct {
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Header Header `json:"header"`
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NumTxs int64 `json:"num_txs"` // Number of txs in a block
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ResultBeginBlock abci.ResponseBeginBlock `json:"result_begin_block"`
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ResultEndBlock abci.ResponseEndBlock `json:"result_end_block"`
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}
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// All txs fire EventDataTx
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type EventDataTx struct {
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abci.TxResult
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}
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// NOTE: This goes into the replay WAL
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type EventDataRoundState struct {
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Height int64 `json:"height"`
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Round int32 `json:"round"`
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Step string `json:"step"`
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}
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type ValidatorInfo struct {
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Address Address `json:"address"`
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Index int32 `json:"index"`
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}
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type EventDataNewRound struct {
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Height int64 `json:"height"`
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Round int32 `json:"round"`
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Step string `json:"step"`
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Proposer ValidatorInfo `json:"proposer"`
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}
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type EventDataCompleteProposal struct {
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Height int64 `json:"height"`
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Round int32 `json:"round"`
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Step string `json:"step"`
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BlockID BlockID `json:"block_id"`
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}
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type EventDataVote struct {
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Vote *Vote
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}
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type EventDataString string
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type EventDataValidatorSetUpdates struct {
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ValidatorUpdates []*Validator `json:"validator_updates"`
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}
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///////////////////////////////////////////////////////////////////////////////
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// PUBSUB
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///////////////////////////////////////////////////////////////////////////////
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const (
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// EventTypeKey is a reserved composite key for event name.
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EventTypeKey = "tm.event"
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// TxHashKey is a reserved key, used to specify transaction's hash.
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// see EventBus#PublishEventTx
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TxHashKey = "tx.hash"
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// TxHeightKey is a reserved key, used to specify transaction block's height.
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// see EventBus#PublishEventTx
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TxHeightKey = "tx.height"
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)
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var (
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EventQueryCompleteProposal = QueryForEvent(EventCompleteProposal)
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EventQueryLock = QueryForEvent(EventLock)
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EventQueryNewBlock = QueryForEvent(EventNewBlock)
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EventQueryNewBlockHeader = QueryForEvent(EventNewBlockHeader)
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EventQueryNewRound = QueryForEvent(EventNewRound)
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EventQueryNewRoundStep = QueryForEvent(EventNewRoundStep)
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EventQueryPolka = QueryForEvent(EventPolka)
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EventQueryRelock = QueryForEvent(EventRelock)
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EventQueryTimeoutPropose = QueryForEvent(EventTimeoutPropose)
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EventQueryTimeoutWait = QueryForEvent(EventTimeoutWait)
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EventQueryTx = QueryForEvent(EventTx)
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EventQueryUnlock = QueryForEvent(EventUnlock)
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EventQueryValidatorSetUpdates = QueryForEvent(EventValidatorSetUpdates)
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EventQueryValidBlock = QueryForEvent(EventValidBlock)
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EventQueryVote = QueryForEvent(EventVote)
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)
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func EventQueryTxFor(tx Tx) tmpubsub.Query {
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return tmquery.MustParse(fmt.Sprintf("%s='%s' AND %s='%X'", EventTypeKey, EventTx, TxHashKey, tx.Hash()))
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}
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func QueryForEvent(eventType string) tmpubsub.Query {
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return tmquery.MustParse(fmt.Sprintf("%s='%s'", EventTypeKey, eventType))
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}
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// BlockEventPublisher publishes all block related events
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type BlockEventPublisher interface {
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PublishEventNewBlock(block EventDataNewBlock) error
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PublishEventNewBlockHeader(header EventDataNewBlockHeader) error
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PublishEventTx(EventDataTx) error
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PublishEventValidatorSetUpdates(EventDataValidatorSetUpdates) error
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}
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type TxEventPublisher interface {
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PublishEventTx(EventDataTx) error
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}
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