#!/bin/bash
mkdir -p /lib/jvm
mkdir -p /opt

if [ ! -x /lib/jvm/jdk* ]; then
  echo "Installing Sun JDK ...."
  unzip /usr/src/jdk*.zip -d /lib/jvm/
fi

if [ ! -x /opt/hadoop ]; then
  echo "Installing Hadoop ...."
  tar zxvf /usr/src/hadoop-*.tar.gz -C /opt/
  mv /opt/hadoop-* /opt/hadoop
  cp /opt/hadoop/conf/ /opt/hadoop/conf-local
  mv /opt/hadoop/conf/ /opt/hadoop/conf-pseudo
  ln -s /opt/hadoop/conf-pseudo /opt/hadoop/conf
  cat > /opt/hadoop/conf/core-site.xml << EOF
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>fs.default.name</name>
    <value>hdfs://localhost:9000</value>
  </property>
  <property>
    <name>hadoop.tmp.dir</name>
    <value>/var/hadoop/hadoop-\${user.name}</value>
  </property>
</configuration>
EOF
  cat > /opt/hadoop/conf/hdfs-site.xml << EOF
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>dfs.replication</name>
    <value>1</value>
  </property>
</configuration>
EOF
  cat > /opt/hadoop/conf/mapred-site.xml << EOF
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>mapred.job.tracker</name>
    <value>localhost:9001</value>
  </property>
</configuration>
EOF
fi

export JAVA_HOME=$(dirname /lib/jvm/jdk*/bin/)
echo export JAVA_HOME=$JAVA_HOME >> /opt/hadoop/conf/hadoop-env.sh
echo export HADOOP_HOME=/opt/hadoop >> /opt/hadoop/conf/hadoop-env.sh
echo export HADOOP_CLASSPATH=/opt/hadoop >> /opt/hadoop/conf/hadoop-env.sh
echo export HADOOP_CONF_DIR=/opt/hadoop/conf >> /opt/hadoop/conf/hadoop-env.sh
echo export JAVA_HOME=$JAVA_HOME >> /etc/profile
echo "export PATH=/opt/hadoop/bin/:$JAVA_HOME/bin:\$PATH" >> /etc/profile
cd $JAVA_HOME
chmod a+x `find . -name "*.exe"`
chmod a+x `find . -name "*.dll"`
cd /opt/hadoop
/opt/hadoop/bin/hadoop namenode -format
source /etc/profile
/bin/start-hadoop
sleep 10
/opt/hadoop/bin/hadoop dfsadmin -safemode leave
/opt/hadoop/bin/hadoop fs -mkdir tmp
echo "/bin/stop-hadoop" > ~/.bash_logout
echo "/bin/stop-hadoop" > /etc/skel/.bash_logout
cygstart http://localhost:50070
cygstart http://localhost:50030
exit