Jetty i crontab
Zmodyfikowałem skrypt startowy Jetty tak, żeby serwer mógł startować z crontab’a. To trywialny kod, ale ponieważ słabo znam bash’a więc się z niego cieszę (moje modyfikacje na samym dole).
vs9624:~# cat /etc/init.d/jetty.sh #!/bin/sh # # Startup script for jetty under *nix systems (it works under NT/cygwin too). # # Configuration files # # /etc/default/jetty # If it exists, this is read at the start of script. It may perform any # sequence of shell commands, like setting relevant environment variables. # # $HOME/.jettyrc # If it exists, this is read at the start of script. It may perform any # sequence of shell commands, like setting relevant environment variables. # # /etc/jetty.conf # If found, and no configurations were given on the command line, # the file will be used as this script's configuration. # Each line in the file may contain: # - A comment denoted by the pound (#) sign as first non-blank character. # - The path to a regular file, which will be passed to jetty as a # config.xml file. # - The path to a directory. Each *.xml file in the directory will be # passed to jetty as a config.xml file. # # The files will be checked for existence before being passed to jetty. # # $JETTY_HOME/etc/jetty.xml # If found, used as this script's configuration file, but only if # /etc/jetty.conf was not present. See above. # # Configuration variables # # JAVA_HOME # Home of Java installation. # # JAVA # Command to invoke Java. If not set, $JAVA_HOME/bin/java will be # used. # # JAVA_OPTIONS # Extra options to pass to the JVM # # JETTY_HOME # Where Jetty is installed. If not set, the script will try go # guess it by first looking at the invocation path for the script, # and then by looking in standard locations as $HOME/opt/jetty # and /opt/jetty. The java system property "jetty.home" will be # set to this value for use by configure.xml files, f.e.: # ## # JETTY_CONSOLE # Where Jetty console output should go. Defaults to first writeable of # /dev/console # /dev/tty # # JETTY_PORT # Override the default port for Jetty servers. If not set then the # default value in the xml configuration file will be used. The java # system property "jetty.port" will be set to this value for use in # configure.xml files. For example, the following idiom is widely # used in the demo config files to respect this property in Listener # configuration elements: # # /webapps/jetty.war # # Note: that the config file could ignore this property simply by saying: # # 8080 # # JETTY_RUN # Where the jetty.pid file should be stored. It defaults to the # first available of /var/run, /usr/var/run, and /tmp if not set. # # JETTY_PID # The Jetty PID file, defaults to $JETTY_RUN/jetty.pid # # JETTY_ARGS # The default arguments to pass to jetty. # usage() { echo "Usage: $0 {start|stop|run|restart|check|supervise} [ CONFIGS ... ] " exit 1 } [ $# -gt 0 ] || usage TMPJ=/tmp/j$$ ################################################## # Get the action & configs ################################################## ACTION=$1 shift ARGS="$*" CONFIGS="" ################################################## # Find directory function ################################################## findDirectory() { OP=$1 shift for L in $* ; do [ $OP $L ] || continue echo $L break done } ################################################## # See if there's a default configuration file ################################################## if [ -f /etc/default/jetty ] ; then . /etc/default/jetty fi ################################################## # See if there's a user-specific configuration file ################################################## if [ -f $HOME/.jettyrc ] ; then . $HOME/.jettyrc fi ################################################## # Jetty's hallmark ################################################## JETTY_INSTALL_TRACE_FILE="start.jar" ################################################## # Try to determine JETTY_HOME if not set ################################################## if [ -z "$JETTY_HOME" ] then JETTY_HOME_1=`dirname "$0"` JETTY_HOME_1=`dirname "$JETTY_HOME_1"` if [ -f "${JETTY_HOME_1}/${JETTY_INSTALL_TRACE_FILE}" ] ; then JETTY_HOME=${JETTY_HOME_1} fi fi ################################################## # if no JETTY_HOME, search likely locations. ################################################## if [ "$JETTY_HOME" = "" ] ; then STANDARD_LOCATIONS=" \ $HOME \ $HOME/src \ ${HOME}/opt/ \ /opt \ /java \ /usr/share \ /usr/share/java \ /usr/local \ /usr/local/share \ /usr/local/share/java \ /home \ " JETTY_DIR_NAMES=" \ Jetty \ jetty \ Jetty-* \ jetty-* \ " JETTY_HOME= for L in $STANDARD_LOCATIONS do for N in $JETTY_DIR_NAMES do if [ -d $L/$N ] && [ -f "$L/${N}/${JETTY_INSTALL_TRACE_FILE}" ] ; then JETTY_HOME="$L/$N" echo "Defaulting JETTY_HOME to $JETTY_HOME" fi done [ ! -z "$JETTY_HOME" ] && break done fi ################################################## # No JETTY_HOME yet? We're out of luck! ################################################## if [ -z "$JETTY_HOME" ] ; then echo "** ERROR: JETTY_HOME not set, you need to set it or install in a standard location" exit 1 fi ##################################################### # Check that jetty is where we think it is ##################################################### if [ ! -r $JETTY_HOME/$JETTY_INSTALL_TRACE_FILE ] then echo "** ERROR: Oops! Jetty doesn't appear to be installed in $JETTY_HOME" echo "** ERROR: $JETTY_HOME/$JETTY_INSTALL_TRACE_FILE is not readable!" exit 1 fi ########################################################### # Get the list of config.xml files from the command line. ########################################################### if [ ! -z "$ARGS" ] then for A in $ARGS do if [ -f $A ] then CONF="$A" elif [ -f $JETTY_HOME/etc/$A ] then CONF="$JETTY_HOME/etc/$A" elif [ -f ${A}.xml ] then CONF="${A}.xml" elif [ -f $JETTY_HOME/etc/${A}.xml ] then CONF="$JETTY_HOME/etc/${A}.xml" else echo "** ERROR: Cannot find configuration '$A' specified in the command line." exit 1 fi if [ ! -r $CONF ] then echo "** ERROR: Cannot read configuration '$A' specified in the command line." exit 1 fi CONFIGS="$CONFIGS $CONF" done fi ################################################## # Try to find this script's configuration file, # but only if no configurations were given on the # command line. ################################################## if [ -z "$JETTY_CONF" ] then if [ -f /etc/jetty.conf ] then JETTY_CONF=/etc/jetty.conf elif [ -f "${JETTY_HOME}/etc/jetty.conf" ] then JETTY_CONF="${JETTY_HOME}/etc/jetty.conf" fi fi ################################################## # Read the configuration file if one exists ################################################## CONFIG_LINES= if [ -z "$CONFIGS" ] && [ -f "$JETTY_CONF" ] && [ -r "$JETTY_CONF" ] then CONFIG_LINES=`cat $JETTY_CONF | grep -v "^[:space:]*#" | tr "\n" " "` fi ################################################## # Get the list of config.xml files from jetty.conf ################################################## if [ ! -z "${CONFIG_LINES}" ] then for CONF in ${CONFIG_LINES} do if [ ! -r "$CONF" ] then echo "** WARNING: Cannot read '$CONF' specified in '$JETTY_CONF'" elif [ -f "$CONF" ] then # assume it's a configure.xml file CONFIGS="$CONFIGS $CONF" elif [ -d "$CONF" ] then # assume it's a directory with configure.xml files # for example: /etc/jetty.d/ # sort the files before adding them to the list of CONFIGS XML_FILES=`ls ${CONF}/*.xml | sort | tr "\n" " "` for FILE in ${XML_FILES} do if [ -r "$FILE" ] && [ -f "$FILE" ] then CONFIGS="$CONFIGS $FILE" else echo "** WARNING: Cannot read '$FILE' specified in '$JETTY_CONF'" fi done else echo "** WARNING: Don''t know what to do with '$CONF' specified in '$JETTY_CONF'" fi done fi ##################################################### # Run the standard server if there's nothing else to run ##################################################### if [ -z "$CONFIGS" ] then CONFIGS="${JETTY_HOME}/etc/jetty.xml" fi ##################################################### # Find a location for the pid file ##################################################### if [ -z "$JETTY_RUN" ] then JETTY_RUN=`findDirectory -w /var/run /usr/var/run /tmp` fi ##################################################### # Find a PID for the pid file ##################################################### if [ -z "$JETTY_PID" ] then JETTY_PID="$JETTY_RUN/jetty.pid" fi ##################################################### # Find a location for the jetty console ##################################################### if [ -z "$JETTY_CONSOLE" ] then if [ -w /dev/console ] then JETTY_CONSOLE=/dev/console else JETTY_CONSOLE=/dev/tty fi fi ################################################## # Check for JAVA_HOME ################################################## if [ -z "$JAVA_HOME" ] then # If a java runtime is not defined, search the following # directories for a JVM and sort by version. Use the highest # version number. # Java search path JAVA_LOCATIONS="\ /usr/bin \ /usr/local/bin \ /usr/local/java \ /usr/local/jdk \ /usr/local/jre \ /opt/java \ /opt/jdk \ /opt/jre \ " JAVA_NAMES="java jre kaffe" for N in $JAVA_NAMES ; do for L in $JAVA_LOCATIONS ; do [ -d $L ] || continue find $L -name "$N" ! -type d | grep -v threads | while read J ; do [ -x $J ] || continue VERSION=`eval $J -version 2>&1` [ $? = 0 ] || continue VERSION=`expr "$VERSION" : '.*"\(1.[0-9\.]*\)"'` [ "$VERSION" = "" ] && continue expr $VERSION \< 1.2 >/dev/null && continue echo $VERSION:$J done done done | sort | tail -1 > $TMPJ JAVA=`cat $TMPJ | cut -d: -f2` JVERSION=`cat $TMPJ | cut -d: -f1` JAVA_HOME=`dirname $JAVA` while [ ! -z "$JAVA_HOME" -a "$JAVA_HOME" != "/" -a ! -f "$JAVA_HOME/lib/tools.jar" ] ; do JAVA_HOME=`dirname $JAVA_HOME` done [ "$JAVA_HOME" = "" ] && JAVA_HOME= echo "Found JAVA=$JAVA in JAVA_HOME=$JAVA_HOME" fi ################################################## # Determine which JVM of version >1.2 # Try to use JAVA_HOME ################################################## if [ "$JAVA" = "" -a "$JAVA_HOME" != "" ] then if [ ! -z "$JAVACMD" ] then JAVA="$JAVACMD" else [ -x $JAVA_HOME/bin/jre -a ! -d $JAVA_HOME/bin/jre ] && JAVA=$JAVA_HOME/bin/jre [ -x $JAVA_HOME/bin/java -a ! -d $JAVA_HOME/bin/java ] && JAVA=$JAVA_HOME/bin/java fi fi if [ "$JAVA" = "" ] then echo "Cannot find a JRE or JDK. Please set JAVA_HOME to a >=1.2 JRE" 2>&2 exit 1 fi JAVA_VERSION=`expr "$($JAVA -version 2>&1 | head -1)" : '.*1\.\([0-9]\)'` ##################################################### # See if JETTY_PORT is defined ##################################################### if [ "$JETTY_PORT" != "" ] then JAVA_OPTIONS="$JAVA_OPTIONS -Djetty.port=$JETTY_PORT" fi ##################################################### # Are we running on Windows? Could be, with Cygwin/NT. ##################################################### case "`uname`" in CYGWIN*) PATH_SEPARATOR=";";; *) PATH_SEPARATOR=":";; esac ##################################################### # Add jetty properties to Java VM options. ##################################################### JAVA_OPTIONS="$JAVA_OPTIONS -Djetty.home=$JETTY_HOME " ##################################################### # This is how the Jetty server will be started ##################################################### RUN_CMD="$JAVA $JAVA_OPTIONS -jar $JETTY_HOME/start.jar $JETTY_ARGS $CONFIGS" ##################################################### # Comment these out after you're happy with what # the script is doing. ##################################################### #echo "JETTY_HOME = $JETTY_HOME" #echo "JETTY_CONF = $JETTY_CONF" #echo "JETTY_RUN = $JETTY_RUN" #echo "JETTY_PID = $JETTY_PID" #echo "JETTY_CONSOLE = $JETTY_CONSOLE" #echo "JETTY_ARGS = $JETTY_ARGS" #echo "CONFIGS = $CONFIGS" #echo "JAVA_OPTIONS = $JAVA_OPTIONS" #echo "JAVA = $JAVA" ################################################## # Do the action ################################################## case "$ACTION" in start) echo "Starting Jetty: " if [ -f $JETTY_PID ] then echo "Already Running!!" exit 1 fi echo "STARTED Jetty `date`" >> $JETTY_CONSOLE nohup sh -c "exec $RUN_CMD >>$JETTY_CONSOLE 2>&1" >/dev/null & echo $! > $JETTY_PID echo "Jetty running pid="`cat $JETTY_PID` ;; stop) PID=`cat $JETTY_PID 2>/dev/null` echo "Shutting down Jetty: $PID" kill $PID 2>/dev/null sleep 2 kill -9 $PID 2>/dev/null rm -f $JETTY_PID echo "STOPPED `date`" >>$JETTY_CONSOLE ;; restart) $0 stop $* sleep 5 $0 start $* ;; supervise) # # Under control of daemontools supervise monitor which # handles restarts and shutdowns via the svc program. # exec $RUN_CMD ;; run|demo) echo "Running Jetty: " if [ -f $JETTY_PID ] then echo "Already Running!!" exit 1 fi exec $RUN_CMD ;; check) echo "Checking arguments to Jetty: " echo "JETTY_HOME = $JETTY_HOME" echo "JETTY_CONF = $JETTY_CONF" echo "JETTY_RUN = $JETTY_RUN" echo "JETTY_PID = $JETTY_PID" echo "JETTY_CONSOLE = $JETTY_CONSOLE" echo "JETTY_PORT = $JETTY_PORT" echo "CONFIGS = $CONFIGS" echo "JAVA_OPTIONS = $JAVA_OPTIONS" echo "JAVA = $JAVA" echo "CLASSPATH = $CLASSPATH" echo "RUN_CMD = $RUN_CMD" echo if [ -f $JETTY_RUN/jetty.pid ] then echo "Jetty running pid="`cat $JETTY_RUN/jetty.pid` exit 0 fi exit 1 ;; cron) PID_FILE=$JETTY_RUN/jetty.pid if [ -f $PID_FILE ] then PID=$(cat $PID_FILE) NAME=$(ps -o comm= -p $PID) if [ "java" = "$NAME" ] then echo `date` "Jetty running" exit 0 fi fi echo `date` "Jetty is not working now, trying to start server" $0 start $* exit 1 ;; *) usage ;; esac exit 0
Categories: Java
