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run_expansion_services.sh
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executable file
·154 lines (144 loc) · 3.94 KB
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#!/bin/bash
#
# 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.
#
read -r -d '' USAGE <<END
Usage: run_expansion_services.sh (start|stop) [options]
Options:
--group_id [unique id for stop services later]
--java_expansion_service_jar [path to expansion service jar]
--python_virtualenv_dir [path to virtualenv root dir]
--python_expansion_service_module [name of expansion service module]
--java_port [number]
--python_port [number]
END
while [[ $# -gt 0 ]]; do
key="$1"
case $key in
--group_id)
GROUP_ID="$2"
shift
shift
;;
--java_expansion_service_jar)
JAVA_EXPANSION_SERVICE_JAR="$2"
shift
shift
;;
--java_expansion_service_allowlist_file)
JAVA_EXPANSION_SERVICE_ALLOWLIST_FILE="$2"
shift
shift
;;
--python_expansion_service_allowlist_glob)
PYTHON_EXPANSION_SERVICE_ALLOWLIST_GLOB="$2"
shift
shift
;;
--python_virtualenv_dir)
PYTHON_VIRTUALENV_DIR="$2"
shift
shift
;;
--python_expansion_service_module)
PYTHON_EXPANSION_SERVICE_MODULE="$2"
shift
shift
;;
--java_port)
JAVA_PORT="$2"
shift
shift
;;
--python_port)
PYTHON_PORT="$2"
shift
shift
;;
start)
STARTSTOP="$1"
shift
;;
stop)
STARTSTOP="$1"
shift
;;
*)
echo "Unknown option: $1"
echo "$USAGE"
exit 1
;;
esac
done
FILE_BASE="beam-expansion-service"
if [ -n "$GROUP_ID" ]; then
FILE_BASE="$FILE_BASE-$GROUP_ID"
fi
TEMP_DIR=/tmp
pid=$TEMP_DIR/$FILE_BASE.pid
lock=$TEMP_DIR/$FILE_BASE.lock
# Check whether flock exists since some OS distributions (like MacOS)
# don't have it by default
command -v flock >/dev/null 2>&1
CHECK_FLOCK=$?
if [[ $CHECK_FLOCK -eq 0 ]]; then
exec 200>$lock
if ! flock -n 200; then
echo "script already running."
exit 0
fi
fi
case $STARTSTOP in
start)
if [ -f "$pid" ]; then
echo "services already running."
exit 0
fi
echo "Launching Java expansion service @ $JAVA_PORT"
java -jar $JAVA_EXPANSION_SERVICE_JAR $JAVA_PORT --javaClassLookupAllowlistFile="$JAVA_EXPANSION_SERVICE_ALLOWLIST_FILE" >$TEMP_DIR/$FILE_BASE-java.log 2>&1 </dev/null &
mypid=$!
if kill -0 $mypid >/dev/null 2>&1; then
echo $mypid >> $pid
else
echo "Can't start Java expansion service."
fi
echo "Launching Python expansion service @ $PYTHON_PORT"
source $PYTHON_VIRTUALENV_DIR/bin/activate
python -m $PYTHON_EXPANSION_SERVICE_MODULE -p $PYTHON_PORT --fully_qualified_name_glob "$PYTHON_EXPANSION_SERVICE_ALLOWLIST_GLOB" >$TEMP_DIR/$FILE_BASE-python.log 2>&1 </dev/null &
mypid=$!
if kill -0 $mypid >/dev/null 2>&1; then
echo $mypid >> $pid
else
echo "Can't start Python expansion service."
fi
;;
stop)
if [ -f "$pid" ]; then
while read stop_pid; do
if kill -0 $stop_pid >/dev/null 2>&1; then
echo "Stopping expansion service pid: $stop_pid."
kill $stop_pid
else
echo "Skipping invalid pid: $stop_pid."
fi
done < $pid
rm $pid
fi
;;
esac
if [[ $CHECK_FLOCK -eq 0 ]]; then
flock -u 200
fi