Initial commit

lib/peatio/bench/order_processing/amqp.rb

@@ -0,0 +1,95 @@
+# frozen_string_literal: true
+
+module Bench
+  module OrderProcessing
+    class AMQP < TradeExecution::AMQP
+      def run!
+        # TODO: Check if OrderProcessing daemon is running before start (use queue_info[:consumers]).
+        super
+        Kernel.puts "Init wait orders queue..."
+        @orders_for_cancel_number = init_wait_orders_queue!.size # TODO: If zero? raise Error.
+
+        Kernel.puts "Start wait orders publish..."
+        @cancel_publish_started_at = @order_processing_started_at = Time.now
+        publish_cancel_messages
+        @cancel_publish_finished_at = Time.now
+
+        Kernel.puts "Messages are published to RabbitMQ."
+        Kernel.puts "Waiting for order processing by order processor..."
+        wait_for_order_processing
+        @order_processing_finished_at = Time.now
+      end
+
+      def publish_cancel_messages
+        Array.new(@config[:threads]) do
+          Thread.new do
+            loop do
+              break if @wait_orders_queue.blank?
+              order = @wait_orders_queue.pop
+              AMQP::Queue.enqueue(:matching, action: 'cancel', order: order.to_matching_attributes)
+            rescue StandardError => e
+              Kernel.puts e
+              @errors << e
+            end
+          end
+        end.map(&:join)
+      end
+
+      def wait_for_order_processing
+        last_log_time = Time.at(0)
+        queue_status_file = File.open(queue_status_file_path('order-processing'), 'a')
+
+        loop do
+          queue_status = order_processing_queue_status
+          # NOTE: If no orders where cancelled idle_since would not change.
+          break if queue_status[:messages].zero? &&
+                  queue_status[:idle_since].present? &&
+                  Time.parse("#{queue_status[:idle_since]} UTC") >= @order_processing_started_at
+
+          if last_log_time + 5 < Time.now
+            queue_status_file.puts(YAML.dump([queue_status.merge(timestamp: Time.now.iso8601).deep_stringify_keys]))
+            last_log_time = Time.now
+          end
+
+          sleep 0.5
+        end
+      end
+
+      def result
+        @result ||=
+          begin
+            cancel_publish_ops = @orders_for_cancel_number / (@cancel_publish_finished_at - @cancel_publish_started_at)
+            order_processing_ops = @orders_for_cancel_number / (@order_processing_finished_at - @order_processing_started_at)
+
+            super.merge(
+              cancel_publish: {
+                started_at:  @cancel_publish_started_at.iso8601(6),
+                finished_at: @cancel_publish_finished_at.iso8601(6),
+                operations:  @orders_for_cancel_number,
+                ops:         cancel_publish_ops
+              },
+              order_processing: {
+                started_at:  @order_processing_started_at.iso8601(6),
+                finished_at: @order_processing_finished_at.iso8601(6),
+                operations:  @orders_for_cancel_number,
+                ops:         order_processing_ops
+              }
+            )
+          end
+      end
+
+      private
+      def init_wait_orders_queue!
+        orders = Order.where(state: Order::WAIT).shuffle
+        @wait_orders_queue =
+          orders.each_with_object(Queue.new) do |o, queue|
+            queue << o
+          end
+      end
+
+      def order_processing_queue_status
+        @rmq_http_client.list_queues.find { |q| q[:name] == AMQP::Config.binding_queue(:order_processor).first }
+      end
+    end
+  end
+end