#!/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 [ $# -ne 2 ]; then
    echo "usage) $0 [spark version] [hadoop version]"
    echo "   eg) $0 1.3.1 2.6"
    exit 1
fi

SPARK_VERSION="${1}"
HADOOP_VERSION="${2}"

FWDIR=$(dirname "${BASH_SOURCE-$0}")
ZEPPELIN_HOME="$(cd "${FWDIR}/.."; pwd)"
export SPARK_HOME=${ZEPPELIN_HOME}/spark-${SPARK_VERSION}-bin-hadoop${HADOOP_VERSION}
echo "SPARK_HOME is ${SPARK_HOME} " 
if [ ! -d "${SPARK_HOME}" ]; then
    echo "${SPARK_VERSION}" | grep "^1.[12].[0-9]" > /dev/null
    if [ $? -eq 0 ]; then
        # spark 1.1.x and spark 1.2.x can be downloaded from archive
        wget http://archive.apache.org/dist/spark/spark-${SPARK_VERSION}/spark-${SPARK_VERSION}-bin-hadoop${HADOOP_VERSION}.tgz
    else
        # spark 1.3.x and later can be downloaded from mirror
        # get download address from mirror
        MIRROR_INFO=$(curl -s "http://www.apache.org/dyn/closer.cgi/spark/spark-${SPARK_VERSION}/spark-${SPARK_VERSION}-bin-hadoop${HADOOP_VERSION}.tgz?asjson=1")

        PREFFERED=$(echo "${MIRROR_INFO}" | grep preferred | sed 's/[^"]*.preferred.: .\([^"]*\).*/\1/g')
        PATHINFO=$(echo "${MIRROR_INFO}" | grep path_info | sed 's/[^"]*.path_info.: .\([^"]*\).*/\1/g')
        wget "${PREFFERED}${PATHINFO}"
    fi
    tar zxf spark-${SPARK_VERSION}-bin-hadoop${HADOOP_VERSION}.tgz
fi

# create PID dir. test case detect pid file so they can select active spark home dir for test
mkdir -p ${SPARK_HOME}/run
export SPARK_PID_DIR=${SPARK_HOME}/run


# start
export SPARK_MASTER_PORT=7071
export SPARK_MASTER_WEBUI_PORT=7072
export SPARK_WORKER_WEBUI_PORT=8082
${SPARK_HOME}/sbin/start-master.sh

echo ${SPARK_VERSION} | grep "^1.[123].[0-9]" > /dev/null
if [ $? -eq 0 ]; then   # spark 1.3 or prior
    ${SPARK_HOME}/sbin/start-slave.sh 1 `hostname`:${SPARK_MASTER_PORT}
else
    ${SPARK_HOME}/sbin/start-slave.sh spark://`hostname`:7071
fi