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oslc_master
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oslc_master
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#!/bin/bash
##########################
# Copyright (C) 2020 Ondřej Vašíček <ondrej.vasicek.0@gmail.com>, <xvasic25@stud.fit.vutbr.cz>
#
# Author: Aleš Smrčka <smrcka@fit.vutbr.cz>
# Updates: Ondřej Vašíček <xvasic25@stud.fit.vutbr.cz>(keeping up to date)
#
# This program and the accompanying materials are made available under
# the terms of the Eclipse Public License 2.0 which is available at
# https://www.eclipse.org/legal/epl-2.0
#
# SPDX-License-Identifier: EPL-2.0
##########################
# root dir of this script
ROOTDIR=$(dirname $(realpath $0))
# dir path for logs
LOGDIR=$ROOTDIR/logs
# filepath of PID file (containing list of pids)
PIDFILE=$LOGDIR/pid
# number of logs to prevail (last + current)
LOG_HISTORY=4
MASTER_LOG=master.log
TRIPLESTORE_INI=$ROOTDIR/sparql_triplestore/start.ini
COMPILATION_INI=$ROOTDIR/compilation/conf/VeriFitCompilation.properties
ANALYSIS_INI=$ROOTDIR/analysis/conf/VeriFitAnalysis.properties
# duration for polling (via curl)
SLEEP=3
# adapter version
VERSION=$(cat $ROOTDIR/VERSION.md 2>/dev/null)
# source shared utils
source $ROOTDIR/dev_tools/shared.sh
# $1... = (optional) message
usage()
{
if [ "$#" -gt 0 ]; then
echo "$*"
fi
cat <<EOF
usage: $0 (start|stop|status|log)
start:
Launches the sparql triplestore, and then the analysis adapter and the
compilation adapter. The triplestore needs to finish startup before
both adapters, which is controled by regular polling the triplestore's
tcp port.
Logs are stored in: $LOGDIR
PIDs of running services are stored in: $PIDFILE
EOF
}
# $1 = (optional) -v = be verbose
# $2... = log message
log() {
if [ "x$1" = x-v ]; then
shift
echo "$@"
fi
echo "[$(date +%F_%T)] $@" >>$LOGDIR/$MASTER_LOG
}
stop()
{
log -v "Shutting down"
pids=$(cat $PIDFILE 2>/dev/null)
log -v Killing $pids
kill $pids &>/dev/null
sleep 2
rm $PIDFILE 2>/dev/null
log -v "Stop"
}
status()
{
log "Checking for status"
if [ -s $PIDFILE ]; then
for pid in $(cat $PIDFILE); do
if cmd=$(ps -p $pid -o comm=); then
log -v "Process $pid ($cmd) running"
else
log -v "Process $pid not running"
fi
done
else
echo "stopped"
fi
}
# Gets value of a key from INI file
# $1 = .ini filename
# $2 = key
get_inivalue()
{
cat "$1" | grep "^ *$2" | cut -d= -f2
}
# Rotates (renames) old logs, last log will be deleted.
# name.log => name.0.log; name.0.log => name.1.log; name.1.log => name.2.log ...
# $1 = log dir
# $2 = logname without .log
rotate_logs()
{
local last=$((LOG_HISTORY-2))
[ $last -lt 0 ] && return
local above below
for above in $(seq $last -1 1); do
below=$((above-1))
[ -f "$1/$2.$below.log" ] || continue
mv "$1/$2.$below.log" "$1/$2.$above.log"
done
if [ -f "$1/$2.log" ]; then
mv "$1/$2.log" "$1/$2.0.log"
fi
}
# Rotates logs and prepare a new (current) one (in LOGDIR)
# $2 = logname without .log
mklog()
{
mkdir -p $LOGDIR || exit 1
rotate_logs "$LOGDIR" "$1"
(
echo "########################################################"
echo " Running version: $VERSION"
echo " Started at: $(date +%F_%T)"
echo "########################################################"
) >"$LOGDIR/$1.log"
}
# Polls an address using curl until the request returns zero (i.e. the address responds)
# $1 = web address (for curl)
curl_poll()
{
while ! curl $1 &>/dev/null; do
sleep $SLEEP
echo -n "."
done
echo active
}
start()
{
trap 'stop; exit 0' INT TERM HUP
# make the LOGDIR
mkdir -p $LOGDIR || exit 1
# output version
log -v
log -v "########################################################"
log -v " OSLC Universal Analysis, $VERSION"
log -v "########################################################"
log -v
# load configuration files
processConfFiles "$ROOTDIR" # TODO conf output is not logged (issues with new lines)
echo
# lookup config -- TODO replace with: triplestore_url=$(lookupTriplestoreURL "$ROOTDIR") ? etc
t_host=$(get_inivalue $TRIPLESTORE_INI jetty.http.host | sed 's|/$||')
t_port=$(get_inivalue $TRIPLESTORE_INI jetty.http.port)
triplestore_url="$t_host:$t_port/fuseki/"
c_host=$(get_inivalue $COMPILATION_INI adapter_host | sed 's|/$||')
c_port=$(get_inivalue $COMPILATION_INI adapter_port)
compilation_url="$c_host:$c_port/compilation"
a_host=$(get_inivalue $ANALYSIS_INI adapter_host | sed 's|/$||')
a_port=$(get_inivalue $ANALYSIS_INI adapter_port)
analysis_url="$a_host:$a_port/analysis/"
mklog triplestore
mklog compilation
mklog analysis
true >$PIDFILE
log -v "Starting the Triplestore"
cd sparql_triplestore
./run.sh &>>"$LOGDIR/triplestore.log" &
echo $! >>$PIDFILE
disown
log -v "Waiting for the Triplestore to finish startup"
curl_poll "$triplestore_url"
log -v "Triplestore running"
cd ..
# start the compilation adapter
log -v "Starting the Compilation adapter"
cd compilation
mvn jetty:run-exploded &>>"$LOGDIR/compilation.log" &
echo $! >>$PIDFILE
disown
log -v "Waiting for the Compilation adapter to finish startup"
curl_poll "$compilation_url"
log -v "Compilation adapter running"
# start the analysis adapter
log -v "Starting the Analysis adapter"
cd ../analysis
mvn jetty:run-exploded &>>"$LOGDIR/analysis.log" &
echo $! >>$PIDFILE
disown
log -v "Waiting for the Analysis adapter to finish startup"
curl_poll "$analysis_url"
log -v "Analysis adapter running"
}
monitor_log()
{
cd $LOGDIR
trap 'kill $(jobs -p) 2>/dev/null; exit 0' INT TERM HUP EXIT
tail -f triplestore.log 2>/dev/null | sed 's/^/[triplestore] /' &
tail -f compilation.log 2>/dev/null | sed 's/^/[compilation] /' &
tail -f analysis.log 2>/dev/null | sed 's/^/[analysis] /' &
tail -f $MASTER_LOG 2>/dev/null | sed 's/^/[master] /'
exit 0
}
####################################################3
# Main
# process arguments
if [ $# -eq 0 ]; then
usage "error: Missing arguments"
exit 1
fi
cd $ROOTDIR
case "$1" in
start) start;;
stop) stop;;
status) status;;
log) monitor_log;;
*) usage "error: unknown argument(s): $*"
exit 1;;
esac