#!/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.
#
# Run Zeppelin 
#

USAGE="Usage: bin/zeppelin.sh [--config <conf-dir>]"

if [[ "$1" == "--config" ]]; then
  shift
  conf_dir="$1"
  if [[ ! -d "${conf_dir}" ]]; then
    echo "ERROR : ${conf_dir} is not a directory"
    echo ${USAGE}
    exit 1
  else
    export ZEPPELIN_CONF_DIR="${conf_dir}"
  fi
  shift
fi

bin=$(dirname "${BASH_SOURCE-$0}")
bin=$(cd "${bin}">/dev/null; pwd)

. "${bin}/common.sh"

if [ "$1" == "--version" ] || [ "$1" == "-v" ]; then
    getZeppelinVersion
fi

HOSTNAME=$(hostname)
ZEPPELIN_LOGFILE="${ZEPPELIN_LOG_DIR}/zeppelin-${ZEPPELIN_IDENT_STRING}-${HOSTNAME}.log"
LOG="${ZEPPELIN_LOG_DIR}/zeppelin-cli-${ZEPPELIN_IDENT_STRING}-${HOSTNAME}.out"
  
ZEPPELIN_SERVER=org.apache.zeppelin.server.ZeppelinServer
JAVA_OPTS+=" -Dzeppelin.log.file=${ZEPPELIN_LOGFILE}"

# construct classpath
if [[ -d "${ZEPPELIN_HOME}/zeppelin-interpreter/target/classes" ]]; then
  ZEPPELIN_CLASSPATH+=":${ZEPPELIN_HOME}/zeppelin-interpreter/target/classes"
fi

if [[ -d "${ZEPPELIN_HOME}/zeppelin-zengine/target/classes" ]]; then
  ZEPPELIN_CLASSPATH+=":${ZEPPELIN_HOME}/zeppelin-zengine/target/classes"
fi

if [[ -d "${ZEPPELIN_HOME}/zeppelin-server/target/classes" ]]; then
  ZEPPELIN_CLASSPATH+=":${ZEPPELIN_HOME}/zeppelin-server/target/classes"
fi

addJarInDir "${ZEPPELIN_HOME}"
addJarInDir "${ZEPPELIN_HOME}/lib"
addJarInDir "${ZEPPELIN_HOME}/lib/interpreter"
addJarInDir "${ZEPPELIN_HOME}/zeppelin-interpreter/target/lib"
addJarInDir "${ZEPPELIN_HOME}/zeppelin-zengine/target/lib"
addJarInDir "${ZEPPELIN_HOME}/zeppelin-server/target/lib"
addJarInDir "${ZEPPELIN_HOME}/zeppelin-web/target/lib"
addJarInDir "${ZEPPELIN_HOME}/zeppelin-web-angular/target/lib"

ZEPPELIN_CLASSPATH="$CLASSPATH:$ZEPPELIN_CLASSPATH"

if [[ -n "${HADOOP_CONF_DIR}" ]] && [[ -d "${HADOOP_CONF_DIR}" ]]; then
  ZEPPELIN_CLASSPATH+=":${HADOOP_CONF_DIR}"
fi

if [[ ! -d "${ZEPPELIN_LOG_DIR}" ]]; then
  echo "Log dir doesn't exist, create ${ZEPPELIN_LOG_DIR}"
  $(mkdir -p "${ZEPPELIN_LOG_DIR}")
fi

if [[ ! -d "${ZEPPELIN_PID_DIR}" ]]; then
  echo "Pid dir doesn't exist, create ${ZEPPELIN_PID_DIR}"
  $(mkdir -p "${ZEPPELIN_PID_DIR}")
fi

exec $ZEPPELIN_RUNNER $JAVA_OPTS -cp $ZEPPELIN_CLASSPATH_OVERRIDES:${ZEPPELIN_CLASSPATH} $ZEPPELIN_SERVER "$@"