#!/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.

if [ $# -lt 1 ];
then
  echo "USAGE: $0 [-daemon] [-name servicename] [-loggc] classname [opts]"
  exit 1
fi

source /etc/default/kafka

while [ $# -gt 0 ]; do
  COMMAND=$1
  case $COMMAND in
    -name)
      DAEMON_NAME=$2
      CONSOLE_OUTPUT_FILE=$KAFKA_LOG_DIR/$DAEMON_NAME.out
      shift 2
      ;;
    -loggc)
      if [ -z "$KAFKA_GC_LOG_OPTS"] ; then
        GC_LOG_ENABLED="true"
      fi
      shift
      ;;
    -daemon)
      DAEMON_MODE="true"
      shift
      ;;
    *)
      break
      ;;
  esac
done

# GC options
GC_FILE_SUFFIX='-gc.log'
GC_LOG_FILE_NAME=''
if [ "x$GC_LOG_ENABLED" = "xtrue" ]; then
  GC_LOG_FILE_NAME=$DAEMON_NAME$GC_FILE_SUFFIX
  KAFKA_GC_LOG_OPTS="-Xloggc:$KAFKA_LOG_DIR/$GC_LOG_FILE_NAME -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps "
fi

# Launch mode
if [ "x$DAEMON_MODE" = "xtrue" ]; then
  nohup $JAVA $KAFKA_HEAP_OPTS $KAFKA_JVM_PERFORMANCE_OPTS $KAFKA_GC_LOG_OPTS $KAFKA_JMX_OPTS $KAFKA_LOG4J_OPTS -cp $CLASSPATH $KAFKA_OPTS "$@" > "$CONSOLE_OUTPUT_FILE" 2>&1 < /dev/null &
else
  exec $JAVA $KAFKA_HEAP_OPTS $KAFKA_JVM_PERFORMANCE_OPTS $KAFKA_GC_LOG_OPTS $KAFKA_JMX_OPTS $KAFKA_LOG4J_OPTS -cp $CLASSPATH $KAFKA_OPTS "$@"
fi

