Define code style for spark and java and add code format check to CI #203

	name: GraphAr Spark CI

	on:
	# Trigger the workflow on push or pull request,
	# but only for the main branch
	push:
	branches:
	- main
	paths:
	- 'spark/**'
	pull_request:
	branches:
	- main
	paths:
	- 'spark/**'

	concurrency:
	group: ${{ github.repository }}-${{ github.event.number \|\| github.head_ref \|\| github.sha }}-${{ github.workflow }}
	cancel-in-progress: true

	jobs:
	GraphAr-spark:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true

	- name: Code Format Check
	run: \|
	export JAVA_HOME=${JAVA_HOME_11_X64}
	pushd spark
	mvn spotless:check
	popd

	- name: Build GraphAr Spark
	run: \|
	export JAVA_HOME=${JAVA_HOME_11_X64}
	pushd spark
	mvn clean package -DskipTests -Dspotless.check.skip=true
	popd

	- name: Run test
	run: \|
	export JAVA_HOME=${JAVA_HOME_11_X64}
	pushd spark
	mvn test -Dspotless.check.skip=true
	popd

	- name: Run Neo4j2GraphAr example
	run: \|
	export JAVA_HOME=${JAVA_HOME_11_X64}
	pushd spark
	scripts/get-spark-to-home.sh
	export SPARK_HOME="${HOME}/spark-3.2.2-bin-hadoop3.2"
	export PATH="${SPARK_HOME}/bin":"${PATH}"

	scripts/get-neo4j-to-home.sh
	export NEO4J_HOME="${HOME}/neo4j-community-4.4.23"
	export PATH="${NEO4J_HOME}/bin":"${PATH}"
	neo4j-admin set-initial-password neo4j

	scripts/deploy-neo4j-movie-data.sh

	scripts/build.sh

	export NEO4J_USR="neo4j"
	export NEO4J_PWD="neo4j"
	scripts/run-neo4j2graphar.sh

	# clean the movie data and import from GraphAr
	echo "match (a) -[r] -> () delete a, r;match (a) delete a;" \| cypher-shell -u ${NEO4J_USR} -p ${NEO4J_PWD} -d neo4j --format plain
	scripts/run-graphar2neo4j.sh

	# stop and clean
	popd

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