mirror of
https://github.com/Foundry376/Mailspring.git
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Remove DeltaProcessor, JS side will not write to database
This commit is contained in:
Ben Gotow
parent
efbea58e1e
commit
f6340d5555
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@ -1,231 +0,0 @@
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_ = require 'underscore'
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fs = require 'fs'
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path = require 'path'
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{NylasAPIHelpers,
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Thread,
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DatabaseWriter,
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Actions,
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Message,
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Thread} = require 'nylas-exports'
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DeltaProcessor = require('../../src/services/delta-processor').default
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fixturesPath = path.resolve(__dirname, '..', 'fixtures')
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describe "DeltaProcessor", ->
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describe "handleDeltas", ->
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beforeEach ->
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@sampleDeltas = JSON.parse(fs.readFileSync("#{fixturesPath}/sample-deltas.json"))
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@sampleClustered = JSON.parse(fs.readFileSync("#{fixturesPath}/sample-deltas-clustered.json"))
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it "should immediately fire the received raw deltas event", ->
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spyOn(Actions, 'longPollReceivedRawDeltas')
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spyOn(DeltaProcessor, '_clusterDeltas').andReturn({create: {}, modify: {}, destroy: []})
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waitsForPromise ->
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DeltaProcessor.process(@sampleDeltas, {source: 'n1Cloud'})
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runs ->
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expect(Actions.longPollReceivedRawDeltas).toHaveBeenCalled()
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xit "should call helper methods for all creates first, then modifications, then destroys", ->
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spyOn(Actions, 'longPollProcessedDeltas')
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handleDeltaDeletionPromises = []
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resolveDeltaDeletionPromises = ->
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fn() for fn in handleDeltaDeletionPromises
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handleDeltaDeletionPromises = []
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spyOn(DeltaProcessor, '_handleDestroyDelta').andCallFake ->
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new Promise (resolve, reject) ->
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handleDeltaDeletionPromises.push(resolve)
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handleModelResponsePromises = []
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resolveModelResponsePromises = ->
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fn() for fn in handleModelResponsePromises
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handleModelResponsePromises = []
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spyOn(NylasAPIHelpers, 'handleModelResponse').andCallFake ->
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new Promise (resolve, reject) ->
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handleModelResponsePromises.push(resolve)
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spyOn(DeltaProcessor, '_clusterDeltas').andReturn(JSON.parse(JSON.stringify(@sampleClustered)))
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DeltaProcessor.process(@sampleDeltas)
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createTypes = Object.keys(@sampleClustered['create'])
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expect(NylasAPIHelpers.handleModelResponse.calls.length).toEqual(createTypes.length)
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expect(NylasAPIHelpers.handleModelResponse.calls[0].args[0]).toEqual(_.values(@sampleClustered['create'][createTypes[0]]))
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expect(DeltaProcessor._handleDestroyDelta.calls.length).toEqual(0)
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NylasAPIHelpers.handleModelResponse.reset()
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resolveModelResponsePromises()
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advanceClock()
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modifyTypes = Object.keys(@sampleClustered['modify'])
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expect(NylasAPIHelpers.handleModelResponse.calls.length).toEqual(modifyTypes.length)
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expect(NylasAPIHelpers.handleModelResponse.calls[0].args[0]).toEqual(_.values(@sampleClustered['modify'][modifyTypes[0]]))
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expect(DeltaProcessor._handleDestroyDelta.calls.length).toEqual(0)
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NylasAPIHelpers.handleModelResponse.reset()
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resolveModelResponsePromises()
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advanceClock()
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destroyCount = @sampleClustered['destroy'].length
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expect(DeltaProcessor._handleDestroyDelta.calls.length).toEqual(destroyCount)
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expect(DeltaProcessor._handleDestroyDelta.calls[0].args[0]).toEqual(@sampleClustered['destroy'][0])
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expect(Actions.longPollProcessedDeltas).not.toHaveBeenCalled()
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resolveDeltaDeletionPromises()
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advanceClock()
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expect(Actions.longPollProcessedDeltas).toHaveBeenCalled()
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describe "clusterDeltas", ->
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beforeEach ->
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@sampleDeltas = JSON.parse(fs.readFileSync("#{fixturesPath}/sample-deltas.json"))
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@expectedClustered = JSON.parse(fs.readFileSync("#{fixturesPath}/sample-deltas-clustered.json"))
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it "should collect create/modify events into a hash by model type", ->
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{create, modify} = DeltaProcessor._clusterDeltas(@sampleDeltas)
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expect(create).toEqual(@expectedClustered.create)
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expect(modify).toEqual(@expectedClustered.modify)
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it "should collect destroys into an array", ->
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{destroy} = DeltaProcessor._clusterDeltas(@sampleDeltas)
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expect(destroy).toEqual(@expectedClustered.destroy)
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describe "handleDeltaDeletion", ->
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beforeEach ->
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@thread = new Thread(id: 'idhere')
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@delta =
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"cursor": "bb95ddzqtr2gpmvgrng73t6ih",
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"object": "thread",
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"event": "delete",
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"objectId": @thread.id,
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"timestamp": "2015-08-26T17:36:45.297Z"
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spyOn(DatabaseWriter.prototype, 'unpersistModel')
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it "should resolve if the object cannot be found", ->
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spyOn(DatabaseWriter.prototype, 'find').andCallFake (klass, id) =>
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return Promise.resolve(null)
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waitsForPromise =>
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DeltaProcessor._handleDestroyDelta(@delta)
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runs =>
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expect(DatabaseWriter.prototype.find).toHaveBeenCalledWith(Thread, 'idhere')
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expect(DatabaseWriter.prototype.unpersistModel).not.toHaveBeenCalled()
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it "should call unpersistModel if the object exists", ->
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spyOn(DatabaseWriter.prototype, 'find').andCallFake (klass, id) =>
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return Promise.resolve(@thread)
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waitsForPromise =>
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DeltaProcessor._handleDestroyDelta(@delta)
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runs =>
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expect(DatabaseWriter.prototype.find).toHaveBeenCalledWith(Thread, 'idhere')
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expect(DatabaseWriter.prototype.unpersistModel).toHaveBeenCalledWith(@thread)
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describe "handleModelResponse", ->
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# SEE spec/nylas-api-spec.coffee
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describe "receives metadata deltas", ->
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beforeEach ->
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@stubDB = {}
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spyOn(DatabaseWriter.prototype, 'find').andCallFake (klass, id) =>
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return @stubDB[id]
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spyOn(DatabaseWriter.prototype, 'findAll').andCallFake (klass, where) =>
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ids = where.id
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models = []
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ids.forEach (id) =>
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model = @stubDB[id]
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if model
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models.push(model)
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return models
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spyOn(DatabaseWriter.prototype, 'persistModels').andCallFake (models) =>
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models.forEach (model) =>
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@stubDB[model.id] = model
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return Promise.resolve()
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@messageMetadataDelta =
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id: 519,
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event: "create",
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object: "metadata",
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objectId: 8876,
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changedFields: ["version", "object"],
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attributes:
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id: 8876,
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value: {link_clicks: 1},
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object: "metadata",
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version: 2,
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plugin_id: "link-tracking",
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object_id: '2887',
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object_type: "message",
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account_id: 2
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@threadMetadataDelta =
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id: 392,
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event: "create",
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object: "metadata",
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objectId: 3845,
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changedFields: ["version", "object"],
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attributes:
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id: 3845,
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value: {shouldNotify: true},
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object: "metadata",
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version: 2,
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plugin_id: "send-reminders",
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object_id: 't:3984',
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object_type: "thread"
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account_id: 2,
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it "saves metadata to existing Messages", ->
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message = new Message({id: @messageMetadataDelta.attributes.object_id})
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@stubDB[message.id] = message
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waitsForPromise =>
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DeltaProcessor.process([@messageMetadataDelta])
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runs ->
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message = @stubDB[message.id] # refresh reference
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expect(message.pluginMetadata.length).toEqual(1)
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expect(message.metadataForPluginId('link-tracking')).toEqual({link_clicks: 1})
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it "saves metadata to existing Threads", ->
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thread = new Thread({id: @threadMetadataDelta.attributes.object_id})
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@stubDB[thread.id] = thread
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waitsForPromise =>
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DeltaProcessor.process([@threadMetadataDelta])
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runs ->
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thread = @stubDB[thread.id] # refresh reference
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expect(thread.pluginMetadata.length).toEqual(1)
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expect(thread.metadataForPluginId('send-reminders')).toEqual({shouldNotify: true})
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it "knows how to reconcile different thread ids", ->
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thread = new Thread({id: 't:1948'})
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@stubDB[thread.id] = thread
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message = new Message({
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id: @threadMetadataDelta.attributes.object_id.substring(2),
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threadId: thread.id
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})
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@stubDB[message.id] = message
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waitsForPromise =>
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DeltaProcessor.process([@threadMetadataDelta])
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runs ->
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thread = @stubDB[thread.id] # refresh reference
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expect(thread.pluginMetadata.length).toEqual(1)
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expect(thread.metadataForPluginId('send-reminders')).toEqual({shouldNotify: true})
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it "creates ghost Messages if necessary", ->
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waitsForPromise =>
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DeltaProcessor.process([@messageMetadataDelta])
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runs ->
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message = @stubDB[@messageMetadataDelta.attributes.object_id]
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expect(message).toBeDefined()
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expect(message.pluginMetadata.length).toEqual(1)
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expect(message.metadataForPluginId('link-tracking')).toEqual({link_clicks: 1})
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it "creates ghost Threads if necessary", ->
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waitsForPromise =>
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DeltaProcessor.process([@threadMetadataDelta])
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runs ->
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thread = @stubDB[@threadMetadataDelta.attributes.object_id]
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expect(thread.pluginMetadata.length).toEqual(1)
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expect(thread.metadataForPluginId('send-reminders')).toEqual({shouldNotify: true})
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@ -102,8 +102,6 @@ class Actions {
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*Scope: Main Window*
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*/
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static longPollReceivedRawDeltas = ActionScopeMainWindow;
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static longPollProcessedDeltas = ActionScopeMainWindow;
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static willMakeAPIRequest = ActionScopeMainWindow;
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static didMakeAPIRequest = ActionScopeMainWindow;
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static checkOnlineStatus = ActionScopeWindow;
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@ -111,13 +109,6 @@ class Actions {
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static wakeLocalSyncWorkerForAccount = ActionScopeGlobal;
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/*
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Public: Retry the initial sync
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*Scope: Global*
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*/
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static retryDeltaConnection = ActionScopeGlobal;
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/*
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Public: Open the preferences view.
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@ -284,7 +284,7 @@ class AccountStore extends NylasStore {
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account.syncState = Account.SYNC_STATE_RUNNING
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account.fromJSON(json)
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// Restart the connection in case account credentials have changed
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Actions.retryDeltaConnection()
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// todo bg
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}
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this._save()
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@ -197,7 +197,6 @@ lazyLoad(`SoundRegistry`, 'registries/sound-registry');
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lazyLoad(`MailRulesTemplates`, 'mail-rules-templates');
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lazyLoad(`MailRulesProcessor`, 'mail-rules-processor');
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lazyLoad(`MailboxPerspective`, 'mailbox-perspective');
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lazyLoad(`DeltaProcessor`, 'services/delta-processor');
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lazyLoad(`NativeNotifications`, 'native-notifications');
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lazyLoad(`SanitizeTransformer`, 'services/sanitize-transformer');
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lazyLoad(`QuotedHTMLTransformer`, 'services/quoted-html-transformer');
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@ -1,331 +0,0 @@
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import _ from 'underscore';
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import Actions from '../flux/actions'
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import Thread from '../flux/models/thread'
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import Message from '../flux/models/message'
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import DatabaseStore from '../flux/stores/database-store'
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import * as NylasAPIHelpers from '../flux/nylas-api-helpers'
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/**
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* This injests deltas from multiple sources. One is from local-sync, the
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* other is from n1-cloud. Both sources use delta-stream-builder to generate the delta stream.
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*
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* In both cases we are given the JSON serialized form of a `Transaction`
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* model. An example Thread delta would look like:
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*
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* modelDelta = {
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* id: 518,
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* event: "modify",
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* object: "thread",
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* objectId: 2887,
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* changedFields: ["subject", "unread"],
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* attributes: {
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* id: 2887,
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* object: 'thread',
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* account_id: 2,
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* subject: "Hello World",
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* unread: true,
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* ...
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* }
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* }
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*
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* An example Metadata delta would look like:
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*
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* metadataDelta = {
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* id: 519,
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* event: "create",
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* object: "metadata",
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* objectId: 8876,
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* changedFields: ["version", "object"],
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* attributes: {
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* id: 8876,
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* value: {link_clicks: 1},
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* object: "metadata",
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* version: 2,
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* plugin_id: "link-tracking",
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* object_id: 2887,
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* object_type: "thread"
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* account_id: 2,
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* }
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* }
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*
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* The `object` may be "thread", "message", "metadata", or any other model
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* type we support
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*/
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class DeltaProcessor {
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constructor() {
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this.activationTime = Date.now()
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}
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async process(rawDeltas = [], {source} = {}) {
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try {
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const deltas = await this._decorateDeltas(rawDeltas);
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if (source === "n1Cloud") {
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Actions.longPollReceivedRawDeltas(deltas);
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}
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const {
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modelDeltas,
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accountDeltas,
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metadataDeltas,
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} = this._extractDeltaTypes(deltas);
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this._handleAccountDeltas(accountDeltas);
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const models = await this._saveModels(modelDeltas);
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await this._saveMetadata(metadataDeltas);
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await this._notifyOfNewMessages(models.created);
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this._notifyOfSyncbackRequestDeltas(models)
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} catch (err) {
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console.error(rawDeltas)
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console.error("DeltaProcessor: Process failed.", err)
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NylasEnv.reportError(err);
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} finally {
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Actions.longPollProcessedDeltas()
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}
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}
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/**
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* Create a (non-enumerable) reference from the attributes which we
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* carry forward back to their original deltas. This allows us to
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* mark the deltas that the app ignores later in the process.
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*/
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_decorateDeltas(rawDeltas) {
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rawDeltas.forEach((delta) => {
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if (!delta.attributes) return;
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Object.defineProperty(delta.attributes, '_delta', {
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configurable: true,
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get() { return delta; },
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});
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})
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return rawDeltas
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}
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_extractDeltaTypes(rawDeltas) {
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const modelDeltas = []
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const accountDeltas = []
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const metadataDeltas = []
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rawDeltas.forEach((delta) => {
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if (delta.object === "metadata") {
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metadataDeltas.push(delta)
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} else if (delta.object === "account") {
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accountDeltas.push(delta)
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} else {
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modelDeltas.push(delta)
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}
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})
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return {modelDeltas, metadataDeltas, accountDeltas}
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}
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_handleAccountDeltas = (accountDeltas) => {
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const {modify} = this._clusterDeltas(accountDeltas);
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if (!modify.account) return;
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for (const accountJSON of _.values(modify.account)) {
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Actions.updateAccount(accountJSON.account_id, {syncState: accountJSON.sync_state});
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if (accountJSON.sync_state !== "running") {
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Actions.recordUserEvent('Account Sync Errored', {
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accountId: accountJSON.account_id,
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syncState: accountJSON.sync_state,
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});
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}
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}
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}
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_notifyOfSyncbackRequestDeltas({created, updated} = {}) {
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const createdRequests = created.syncbackRequest || []
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const updatedRequests = updated.syncbackRequest || []
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const syncbackRequests = createdRequests.concat(updatedRequests)
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if (syncbackRequests.length === 0) { return }
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Actions.didReceiveSyncbackRequestDeltas(syncbackRequests)
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}
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async _saveModels(modelDeltas) {
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const {create, modify, destroy} = this._clusterDeltas(modelDeltas);
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const created = await Promise.props(_.mapObject(create, (val) =>
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NylasAPIHelpers.handleModelResponse(_.values(val))
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))
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const updated = await Promise.props(_.mapObject(modify, (val) =>
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NylasAPIHelpers.handleModelResponse(_.values(val))
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));
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await Promise.map(destroy, this._handleDestroyDelta);
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return {created, updated};
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}
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async _saveMetadata(deltas) {
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const all = {};
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for (const delta of deltas.filter(d => d.event === 'create')) {
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all[delta.attributes.object_id] = delta.attributes;
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}
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for (const delta of deltas.filter(d => d.event === 'modify')) {
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all[delta.attributes.object_id] = delta.attributes;
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}
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const allByObjectType = _.groupBy(_.values(all), "object_type")
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return Promise.map(Object.keys(allByObjectType), (objType) => {
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const jsons = allByObjectType[objType]
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const Klass = NylasAPIHelpers.apiObjectToClassMap[objType];
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const objectIds = jsons.map(j => j.object_id)
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return DatabaseStore.inTransaction((t) => {
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return this._findOrCreateModelsForMetadata(t, Klass, objectIds).then((modelsByObjectId) => {
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const models = [];
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Object.keys(modelsByObjectId).forEach((objectId) => {
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const model = modelsByObjectId[objectId];
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const metadataJSON = all[objectId];
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const modelWithMetadata = model.applyPluginMetadata(metadataJSON.plugin_id, metadataJSON.value);
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const localMetadatum = modelWithMetadata.metadataObjectForPluginId(metadataJSON.plugin_id);
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localMetadatum.version = metadataJSON.version;
|
||||
models.push(modelWithMetadata);
|
||||
})
|
||||
return t.persistModels(models)
|
||||
});
|
||||
});
|
||||
})
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
@param ids An array of metadata object_ids that correspond to threads
|
||||
@returns A map of the object_ids to threads in the database, resolving the
|
||||
IDs as necessary. If the thread does not yet exist, we create a ghost thread that
|
||||
contains only the id and the metadata.
|
||||
*/
|
||||
async _findOrCreateThreadsForMetadata(t, ids) {
|
||||
// Since threads can have different ids, we need to find the equivalent threads
|
||||
// through their messages. First, find the messages that correspond to the thread
|
||||
// ids (which are of the format `t:${messageId}`)
|
||||
const messageIds = ids.map(i => i.substring(2))
|
||||
const messages = await t.findAll(Message, {id: messageIds})
|
||||
|
||||
// Create a map of which local thread ids are equivalent to the ids from the server
|
||||
const localIdToRemoteId = {}
|
||||
messages.forEach(msg => { localIdToRemoteId[msg.threadId] = `t:${msg.id}` })
|
||||
|
||||
// Then map the actual thread models to the server ids
|
||||
const threads = await t.findAll(Thread, {id: Object.keys(localIdToRemoteId)})
|
||||
const map = {};
|
||||
for (const thread of threads) {
|
||||
const pluginObjectId = localIdToRemoteId[thread.id]
|
||||
map[pluginObjectId] = thread;
|
||||
}
|
||||
|
||||
// Create ghost models for threads that we haven't synced yet
|
||||
const missingIds = ids.filter(id => !map[id])
|
||||
const newThreads = [];
|
||||
const newMessages = [];
|
||||
missingIds.forEach(id => {
|
||||
// Build both the thread and corresponding message. We won't be able to find
|
||||
// the ghost thread if the message with the corresponding id doesn't exist.
|
||||
const thread = new Thread();
|
||||
thread.id = id;
|
||||
thread.categories = [];
|
||||
const message = new Message();
|
||||
message.id = id.substring(2);
|
||||
message.threadId = id;
|
||||
|
||||
map[id] = thread;
|
||||
newThreads.push(thread);
|
||||
newMessages.push(message);
|
||||
})
|
||||
|
||||
if (newThreads.length > 0) {
|
||||
await t.persistModels(newThreads);
|
||||
await t.persistModels(newMessages);
|
||||
}
|
||||
return map;
|
||||
}
|
||||
|
||||
/**
|
||||
@param ids An array of metadata object_ids
|
||||
@returns A map of the object_ids to models in the database, resolving the
|
||||
IDs as necessary. If the model does not yet exist, we create a ghost model that
|
||||
contains only the id and the metadata.
|
||||
*/
|
||||
async _findOrCreateModelsForMetadata(t, Klass, ids) {
|
||||
if (Klass === Thread) {
|
||||
return this._findOrCreateThreadsForMetadata(t, ids)
|
||||
}
|
||||
|
||||
const models = await t.findAll(Klass, {id: ids})
|
||||
const map = {};
|
||||
for (const model of models) {
|
||||
const pluginObjectId = model.id;
|
||||
map[pluginObjectId] = model;
|
||||
}
|
||||
|
||||
// Build ghost models for objects we haven't synced yet
|
||||
const missingIds = ids.filter(id => !map[id])
|
||||
const instances = []
|
||||
missingIds.forEach(id => {
|
||||
const klass = new Klass({id: id})
|
||||
map[id] = klass
|
||||
instances.push(klass)
|
||||
})
|
||||
|
||||
if (instances.length > 0) {
|
||||
await t.persistModels(instances)
|
||||
}
|
||||
return map;
|
||||
}
|
||||
|
||||
/**
|
||||
* Group deltas by object type so we can mutate the cache efficiently.
|
||||
* NOTE: This code must not just accumulate creates, modifies and
|
||||
* destroys but also de-dupe them. We cannot call
|
||||
* "persistModels(itemA, itemA, itemB)" or it will throw an exception
|
||||
*/
|
||||
_clusterDeltas(deltas) {
|
||||
const create = {};
|
||||
const modify = {};
|
||||
const destroy = [];
|
||||
for (const delta of deltas) {
|
||||
if (delta.event === 'create') {
|
||||
if (!create[delta.object]) { create[delta.object] = {}; }
|
||||
create[delta.object][delta.attributes.id] = delta.attributes;
|
||||
} else if (delta.event === 'modify') {
|
||||
if (!modify[delta.object]) { modify[delta.object] = {}; }
|
||||
modify[delta.object][delta.attributes.id] = delta.attributes;
|
||||
} else if (delta.event === 'delete') {
|
||||
destroy.push(delta);
|
||||
}
|
||||
}
|
||||
|
||||
return {create, modify, destroy};
|
||||
}
|
||||
|
||||
async _notifyOfNewMessages(created) {
|
||||
const incomingMessages = created.message || [];
|
||||
|
||||
// Filter for new messages that are not sent by the current user
|
||||
const newUnread = incomingMessages.filter((msg) => {
|
||||
const isUnread = msg.unread === true;
|
||||
const isNew = msg.date && msg.date.valueOf() >= this.activationTime;
|
||||
const isFromMe = msg.isFromMe();
|
||||
return isUnread && isNew && !isFromMe;
|
||||
});
|
||||
|
||||
if (newUnread.length === 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
Actions.onNewMailDeltas(created)
|
||||
}
|
||||
|
||||
_handleDestroyDelta(delta) {
|
||||
const klass = NylasAPIHelpers.apiObjectToClassMap[delta.object];
|
||||
if (!klass) { return Promise.resolve(); }
|
||||
|
||||
return DatabaseStore.inTransaction(t => {
|
||||
return t.find(klass, delta.objectId).then((model) => {
|
||||
if (!model) { return Promise.resolve(); }
|
||||
return t.unpersistModel(model);
|
||||
});
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
export default new DeltaProcessor()
|
||||
Loading…
Reference in a new issue