mirror of
https://github.com/1f349/dendrite.git
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49f760a30b
* Merge forward * Tidy up a bit * TODO: What to do with NextBatch here? * Replace SyncPosition with PaginationToken throughout syncapi * Fix PaginationTokens * Fix lint errors * Add a couple of missing functions into the syncapi external storage interface * Some updates based on review comments from @babolivier * Some updates based on review comments from @babolivier * argh whitespacing * Fix opentracing span * Remove dead code * Don't overshadow err (fix lint issue) * Handle extremities after inserting event into topology * Try insert event topology as ON CONFLICT DO NOTHING * Prevent OOB error in addRoomDeltaToResponse * Thwarted by gocyclo again * Fix NewPaginationTokenFromString, define unit test for it * Update pagination token test * Update sytest-whitelist * Hopefully fix some of the sync batch tokens * Remove extraneous sync position func * Revert to topology tokens in addRoomDeltaToResponse etc * Fix typo * Remove prevPDUPos as dead now that backwardTopologyPos is used instead * Fix selectEventsWithEventIDsSQL * Update sytest-blacklist * Update sytest-whitelist
97 lines
3.1 KiB
Go
97 lines
3.1 KiB
Go
// Copyright 2017 Vector Creations Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package consumers
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import (
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"context"
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"encoding/json"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/common/config"
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"github.com/matrix-org/dendrite/syncapi/storage"
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"github.com/matrix-org/dendrite/syncapi/sync"
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"github.com/matrix-org/dendrite/syncapi/types"
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log "github.com/sirupsen/logrus"
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sarama "gopkg.in/Shopify/sarama.v1"
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)
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// OutputClientDataConsumer consumes events that originated in the client API server.
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type OutputClientDataConsumer struct {
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clientAPIConsumer *common.ContinualConsumer
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db storage.Database
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notifier *sync.Notifier
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}
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// NewOutputClientDataConsumer creates a new OutputClientData consumer. Call Start() to begin consuming from room servers.
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func NewOutputClientDataConsumer(
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cfg *config.Dendrite,
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kafkaConsumer sarama.Consumer,
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n *sync.Notifier,
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store storage.Database,
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) *OutputClientDataConsumer {
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consumer := common.ContinualConsumer{
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Topic: string(cfg.Kafka.Topics.OutputClientData),
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Consumer: kafkaConsumer,
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PartitionStore: store,
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}
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s := &OutputClientDataConsumer{
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clientAPIConsumer: &consumer,
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db: store,
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notifier: n,
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}
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consumer.ProcessMessage = s.onMessage
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return s
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}
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// Start consuming from room servers
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func (s *OutputClientDataConsumer) Start() error {
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return s.clientAPIConsumer.Start()
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}
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// onMessage is called when the sync server receives a new event from the client API server output log.
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// It is not safe for this function to be called from multiple goroutines, or else the
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// sync stream position may race and be incorrectly calculated.
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func (s *OutputClientDataConsumer) onMessage(msg *sarama.ConsumerMessage) error {
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// Parse out the event JSON
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var output common.AccountData
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if err := json.Unmarshal(msg.Value, &output); err != nil {
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// If the message was invalid, log it and move on to the next message in the stream
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log.WithError(err).Errorf("client API server output log: message parse failure")
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return nil
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}
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log.WithFields(log.Fields{
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"type": output.Type,
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"room_id": output.RoomID,
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}).Info("received data from client API server")
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pduPos, err := s.db.UpsertAccountData(
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context.TODO(), string(msg.Key), output.RoomID, output.Type,
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)
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if err != nil {
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log.WithFields(log.Fields{
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"type": output.Type,
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"room_id": output.RoomID,
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log.ErrorKey: err,
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}).Panicf("could not save account data")
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}
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s.notifier.OnNewEvent(nil, "", []string{string(msg.Key)}, types.PaginationToken{PDUPosition: pduPos})
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return nil
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}
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