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package types
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import (
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"fmt"
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"strings"
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abci "github.com/tendermint/tendermint/abci/types"
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tmjson "github.com/tendermint/tendermint/libs/json"
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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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EventNewBlockValue = "NewBlock"
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EventNewBlockHeaderValue = "NewBlockHeader"
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EventNewEvidenceValue = "NewEvidence"
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EventTxValue = "Tx"
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EventValidatorSetUpdatesValue = "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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EventCompleteProposalValue = "CompleteProposal"
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// The FastSyncStatus event will be emitted when the node switching
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// state sync mechanism between the consensus reactor and the fastsync reactor.
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EventFastSyncStatusValue = "FastSyncStatus"
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EventLockValue = "Lock"
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EventNewRoundValue = "NewRound"
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EventNewRoundStepValue = "NewRoundStep"
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EventPolkaValue = "Polka"
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EventRelockValue = "Relock"
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EventStateSyncStatusValue = "StateSyncStatus"
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EventTimeoutProposeValue = "TimeoutPropose"
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EventTimeoutWaitValue = "TimeoutWait"
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EventUnlockValue = "Unlock"
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EventValidBlockValue = "ValidBlock"
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EventVoteValue = "Vote"
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)
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// Pre-populated ABCI Tendermint-reserved events
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var (
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EventNewBlock = abci.Event{
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Type: strings.Split(EventTypeKey, ".")[0],
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Attributes: []abci.EventAttribute{
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{
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Key: strings.Split(EventTypeKey, ".")[1],
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Value: EventNewBlockValue,
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},
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},
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}
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EventNewBlockHeader = abci.Event{
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Type: strings.Split(EventTypeKey, ".")[0],
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Attributes: []abci.EventAttribute{
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{
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Key: strings.Split(EventTypeKey, ".")[1],
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Value: EventNewBlockHeaderValue,
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},
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},
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}
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EventNewEvidence = abci.Event{
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Type: strings.Split(EventTypeKey, ".")[0],
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Attributes: []abci.EventAttribute{
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{
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Key: strings.Split(EventTypeKey, ".")[1],
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Value: EventNewEvidenceValue,
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},
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},
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}
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EventTx = abci.Event{
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Type: strings.Split(EventTypeKey, ".")[0],
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Attributes: []abci.EventAttribute{
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{
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Key: strings.Split(EventTypeKey, ".")[1],
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Value: EventTxValue,
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},
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},
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}
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)
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// ENCODING / DECODING
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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 init() {
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tmjson.RegisterType(EventDataNewBlock{}, "tendermint/event/NewBlock")
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tmjson.RegisterType(EventDataNewBlockHeader{}, "tendermint/event/NewBlockHeader")
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tmjson.RegisterType(EventDataNewEvidence{}, "tendermint/event/NewEvidence")
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tmjson.RegisterType(EventDataTx{}, "tendermint/event/Tx")
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tmjson.RegisterType(EventDataRoundState{}, "tendermint/event/RoundState")
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tmjson.RegisterType(EventDataNewRound{}, "tendermint/event/NewRound")
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tmjson.RegisterType(EventDataCompleteProposal{}, "tendermint/event/CompleteProposal")
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tmjson.RegisterType(EventDataVote{}, "tendermint/event/Vote")
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tmjson.RegisterType(EventDataValidatorSetUpdates{}, "tendermint/event/ValidatorSetUpdates")
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tmjson.RegisterType(EventDataString(""), "tendermint/event/ProposalString")
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tmjson.RegisterType(EventDataFastSyncStatus{}, "tendermint/event/FastSyncStatus")
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tmjson.RegisterType(EventDataStateSyncStatus{}, "tendermint/event/StateSyncStatus")
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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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BlockID BlockID `json:"block_id"`
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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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type EventDataNewEvidence struct {
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Evidence Evidence `json:"evidence"`
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Height int64 `json:"height"`
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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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// EventDataFastSyncStatus shows the fastsync status and the
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// height when the node state sync mechanism changes.
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type EventDataFastSyncStatus struct {
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Complete bool `json:"complete"`
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Height int64 `json:"height"`
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}
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// EventDataStateSyncStatus shows the statesync status and the
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// height when the node state sync mechanism changes.
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type EventDataStateSyncStatus struct {
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Complete bool `json:"complete"`
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Height int64 `json:"height"`
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}
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// PUBSUB
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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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// BlockHeightKey is a reserved key used for indexing BeginBlock and Endblock
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// events.
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BlockHeightKey = "block.height"
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EventTypeBeginBlock = "begin_block"
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EventTypeEndBlock = "end_block"
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)
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var (
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EventQueryCompleteProposal = QueryForEvent(EventCompleteProposalValue)
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EventQueryLock = QueryForEvent(EventLockValue)
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EventQueryNewBlock = QueryForEvent(EventNewBlockValue)
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EventQueryNewBlockHeader = QueryForEvent(EventNewBlockHeaderValue)
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EventQueryNewEvidence = QueryForEvent(EventNewEvidenceValue)
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EventQueryNewRound = QueryForEvent(EventNewRoundValue)
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EventQueryNewRoundStep = QueryForEvent(EventNewRoundStepValue)
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EventQueryPolka = QueryForEvent(EventPolkaValue)
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EventQueryRelock = QueryForEvent(EventRelockValue)
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EventQueryTimeoutPropose = QueryForEvent(EventTimeoutProposeValue)
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EventQueryTimeoutWait = QueryForEvent(EventTimeoutWaitValue)
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EventQueryTx = QueryForEvent(EventTxValue)
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EventQueryUnlock = QueryForEvent(EventUnlockValue)
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EventQueryValidatorSetUpdates = QueryForEvent(EventValidatorSetUpdatesValue)
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EventQueryValidBlock = QueryForEvent(EventValidBlockValue)
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EventQueryVote = QueryForEvent(EventVoteValue)
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EventQueryFastSyncStatus = QueryForEvent(EventFastSyncStatusValue)
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EventQueryStateSyncStatus = QueryForEvent(EventStateSyncStatusValue)
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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, EventTxValue, TxHashKey, tx.Hash()))
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}
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func QueryForEvent(eventValue string) tmpubsub.Query {
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return tmquery.MustParse(fmt.Sprintf("%s='%s'", EventTypeKey, eventValue))
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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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PublishEventNewEvidence(evidence EventDataNewEvidence) 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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