#!/bin/bash
# 
# The Hadoop record compiler
#
# Environment Variables
#
#   JAVA_HOME        The java implementation to use.  Overrides JAVA_HOME.
#
#   HADOOP_OPTS      Extra Java runtime options.
#
#   HADOOP_CONF_DIR  Alternate conf dir. Default is ${HADOOP_HOME}/conf.
#

# resolve links - $0 may be a softlink
THIS="$0"
while [ -h "$THIS" ]; do
  ls=`ls -ld "$THIS"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '.*/.*' > /dev/null; then
    THIS="$link"
  else
    THIS=`dirname "$THIS"`/"$link"
  fi
done

# some directories
THIS_DIR=`dirname "$THIS"`
HADOOP_HOME=`cd "$THIS_DIR/.." ; pwd`

# Allow alternate conf dir location.
HADOOP_CONF_DIR="${HADOOP_CONF_DIR:-$HADOOP_HOME/conf}"

if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
  source "${HADOOP_CONF_DIR}/hadoop-env.sh"
fi

# some Java parameters
if [ "$JAVA_HOME" != "" ]; then
  #echo "run java in $JAVA_HOME"
  JAVA_HOME=$JAVA_HOME
fi
  
if [ "$JAVA_HOME" = "" ]; then
  echo "Error: JAVA_HOME is not set."
  exit 1
fi

JAVA=$JAVA_HOME/bin/java
JAVA_HEAP_MAX=-Xmx1000m 

# CLASSPATH initially contains $HADOOP_CONF_DIR
CLASSPATH="${HADOOP_CONF_DIR}"
CLASSPATH=${CLASSPATH}:$JAVA_HOME/lib/tools.jar

# for developers, add Hadoop classes to CLASSPATH
if [ -d "$HADOOP_HOME/build/classes" ]; then
  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/classes
fi
if [ -d "$HADOOP_HOME/build/webapps" ]; then
  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build
fi
if [ -d "$HADOOP_HOME/build/test/classes" ]; then
  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/test/classes
fi

# so that filenames w/ spaces are handled correctly in loops below
IFS=

# for releases, add hadoop jars & webapps to CLASSPATH
if [ -d "$HADOOP_HOME/webapps" ]; then
  CLASSPATH=${CLASSPATH}:$HADOOP_HOME
fi
for f in $HADOOP_HOME/hadoop-*.jar; do
  CLASSPATH=${CLASSPATH}:$f;
done

# add libs to CLASSPATH
for f in $HADOOP_HOME/lib/*.jar; do
  CLASSPATH=${CLASSPATH}:$f;
done

for f in $HADOOP_HOME/lib/jetty-ext/*.jar; do
  CLASSPATH=${CLASSPATH}:$f;
done

# restore ordinary behaviour
unset IFS

CLASS='org.apache.hadoop.record.compiler.generated.Rcc'

# cygwin path translation
if expr `uname` : 'CYGWIN*' > /dev/null; then
  CLASSPATH=`cygpath -p -w "$CLASSPATH"`
fi

# run it
exec "$JAVA" $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS "$@"