Update picture of communication #219

	#
	# Copyright 2019 WeBank.
	# Licensed to the Apache Software Foundation (ASF) under one
	# or more contributor license agreements. See the NOTICE file
	# distributed with this work for additional information
	# regarding copyright ownership. The ASF licenses this file
	# to you under the Apache License, Version 2.0 (the
	# "License"); you may not use this file except in compliance
	# with the License. You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing,
	# software distributed under the License is distributed on an
	# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	# KIND, either express or implied. See the License for the
	# specific language governing permissions and limitations
	# under the License.
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	name: Exchangis License check

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout source
	uses: actions/checkout@v2
	- name: Set up JDK 8
	uses: actions/setup-java@v2
	with:
	java-version: '8'
	distribution: 'adopt'
	- name: mvn -N install
	run:
	mvn -N install
	- name: License check with Maven
	run: \|
	rat_file=`mvn apache-rat:check \| { grep -oe "\\S\\+/rat.txt" \|\| true; }`
	echo "rat_file=$rat_file"
	if [[ -n "$rat_file" ]];then echo "check error!" && cat $rat_file && exit 123;else echo "check success!" ;fi
	- name: Upload the report
	uses: actions/upload-artifact@v2
	with:
	name: license-check-report
	path: "**/target/rat.txt"

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