#!/bin/bash
#--------------------------------------------------------------------------------
#
# Licensed to the Apache Software Foundation (ASF) under one
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# 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.
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#--------------------------------------------------------------------------------
#
# run Apache MRQL in Apache Hadoop Map-Reduce mode
#
#--------------------------------------------------------------------------------

MRQL_HOME="$(cd `dirname $0`/..; pwd -P)"

. "$MRQL_HOME/conf/mrql-env.sh"

GEN_JAR=`ls "$MRQL_HOME"/lib/mrql-gen-*.jar`
CORE_JAR=`ls "$MRQL_HOME"/lib/mrql-core-*.jar`
MRQL_JAR=`ls "$MRQL_HOME"/lib/mrql-mr-*.jar`
FULL_JAR="/tmp/${USER}_mrql_mr.jar"
CLASS_DIR="/tmp/${USER}_mrql_classes"

export JAVA_HOME MAPRED_JOB_TRACKER FS_DEFAULT_NAME

if [[ ($MRQL_JAR -nt $FULL_JAR) ]]; then
   rm -rf $CLASS_DIR
   mkdir -p $CLASS_DIR
   pushd $CLASS_DIR > /dev/null
   $JAVA_HOME/bin/jar xf $CUP_JAR
   $JAVA_HOME/bin/jar xf $JLINE_JAR
   $JAVA_HOME/bin/jar xf $GEN_JAR
   $JAVA_HOME/bin/jar xf $CORE_JAR
   $JAVA_HOME/bin/jar xf $MRQL_JAR
   cd ..
   $JAVA_HOME/bin/jar cf $FULL_JAR -C $CLASS_DIR .
   popd > /dev/null
fi

if [ "$1" == "-local" ] || [ "$1" == "-dist" ]; then
   $HADOOP_HOME/bin/hadoop --config $HADOOP_CONFIG jar $FULL_JAR org.apache.mrql.Main $*
else
   $JAVA_HOME/bin/java -classpath "$FULL_JAR:$HADOOP_JARS" org.apache.mrql.Main $*
fi