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add Digest Agent

Similar to Email Digest Agent, except it will emit a digest event
instead of sending email. It could be useful to send digest message
through meanings other than email.

Xu Cheng 9 年之前
父節點
33f0c03e04
當前提交
f6186977e1
共有 2 個文件被更改，包括 123 次插入 和 0 次删除
顯示文件統計
  1. 55 0
      app/models/agents/digest_agent.rb
  2. 68 0
      spec/models/agents/digest_agent_spec.rb

+ 55 - 0
app/models/agents/digest_agent.rb
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+module Agents
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+  class DigestAgent < Agent
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+    include FormConfigurable
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+
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+    default_schedule "6am"
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+
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+    description <<-MD
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+      The Digest Agent collects any Events sent to it and emits them as a single event.
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+
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+      The resulting Event will have a payload message of `message`. You can use liquid templating in the `message`, have a look at the [Wiki](https://github.com/cantino/huginn/wiki/Formatting-Events-using-Liquid) for details.
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+
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+      Set `expected_receive_period_in_days` to the maximum amount of time that you'd expect to pass between Events being received by this Agent.
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+    MD
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+
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+    event_description <<-MD
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+      Events look like this:
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+
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+          {
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+            "events": [ event list ],
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+            "message": "Your message"
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+          }
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+    MD
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+
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+    def default_options
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+      {
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+          "expected_receive_period_in_days" => "2",
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+          "message" => "{{ events | map: 'message' | join: ',' }}"
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+      }
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+    end
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+
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+    form_configurable :message, type: :text
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+    form_configurable :expected_receive_period_in_days
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+
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+    def working?
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+      last_receive_at && last_receive_at > interpolated["expected_receive_period_in_days"].to_i.days.ago && !recent_error_logs?
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+    end
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+
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+    def receive(incoming_events)
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+      self.memory["queue"] ||= []
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+      incoming_events.each do |event|
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+        self.memory["queue"] << event.id
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+      end
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+    end
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+
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+    def check
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+      if self.memory["queue"] && self.memory["queue"].length > 0
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+        events = received_events.where(id: self.memory["queue"]).order(id: :asc).to_a
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+        payload = { "events" => events.map { |event| event.payload } }
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+        payload["message"] = interpolated(payload)["message"]
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+        create_event :payload => payload
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+        self.memory["queue"] = []
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+      end
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+    end
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+  end
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+end

+ 68 - 0
spec/models/agents/digest_agent_spec.rb
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+require "rails_helper"
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+
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+describe Agents::DigestAgent do
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+  before do
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+    @checker = Agents::DigestAgent.new(:name => "something", :options => { :expected_receive_period_in_days => "2", :message => "{{ events | map:'data' | join:';' }}" })
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+    @checker.user = users(:bob)
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+    @checker.save!
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+  end
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+
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+  describe "#working?" do
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+    it "checks to see if the Agent has received any events in the last 'expected_receive_period_in_days' days" do
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+      event = Event.new
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+      event.agent = agents(:bob_rain_notifier_agent)
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+      event.payload = { :data => "event" }
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+      event.save!
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+
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+      expect(@checker).not_to be_working # no events have ever been received
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+      Agents::DigestAgent.async_receive(@checker.id, [event.id])
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+      expect(@checker.reload).to be_working # Events received
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+      three_days_from_now = 3.days.from_now
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+      stub(Time).now { three_days_from_now }
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+      expect(@checker.reload).not_to be_working # too much time has passed
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+    end
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+  end
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+
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+  describe "#receive" do
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+    it "queues any payloads it receives" do
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+      event1 = Event.new
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+      event1.agent = agents(:bob_rain_notifier_agent)
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+      event1.payload = { :data => "event1" }
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+      event1.save!
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+
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+      event2 = Event.new
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+      event2.agent = agents(:bob_weather_agent)
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+      event2.payload = { :data => "event2" }
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+      event2.save!
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+
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+      Agents::DigestAgent.async_receive(@checker.id, [event1.id, event2.id])
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+      expect(@checker.reload.memory[:queue]).to eq([event1.id, event2.id])
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+    end
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+  end
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+
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+  describe "#check" do
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+    it "should emit a event" do
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+      expect { Agents::DigestAgent.async_check(@checker.id) }.not_to change { Event.count }
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+
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+      event1 = Event.new
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+      event1.agent = agents(:bob_rain_notifier_agent)
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+      event1.payload = { :data => "event" }
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+      event1.save!
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+
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+      event2 = Event.new
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+      event2.agent = agents(:bob_weather_agent)
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+      event2.payload = { :data => "event" }
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+      event2.save!
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+
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+      Agents::DigestAgent.async_receive(@checker.id, [event1.id, event2.id])
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+      @checker.sources << agents(:bob_rain_notifier_agent) << agents(:bob_weather_agent)
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+      @checker.save!
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+
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+      expect { Agents::DigestAgent.async_check(@checker.id) }.to change { Event.count }.by(1)
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+      @checker.reload
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+      expect(@checker.most_recent_event.payload["events"]).to eq([event1.payload, event2.payload])
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+      expect(@checker.most_recent_event.payload["message"]).to eq("event;event")
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+      expect(@checker.memory[:queue]).to be_empty
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+    end
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+  end
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+end