JRuby)

# see http://ole-martin.net/hbase-tutorial-for-beginners/

require 'java'
require 'hbase-0.20.2.jar'
require 'lib/zookeeper-3.2.1.jar'
require 'lib/commons-logging-1.0.4.jar'
require 'lib/commons-logging-api-1.0.4.jar'
require 'lib/hadoop-0.20.1-hdfs127-core.jar'
require 'lib/log4j-1.2.15.jar' 

import org.apache.hadoop.hbase.client.HTable
import org.apache.hadoop.hbase.HBaseConfiguration
import org.apache.hadoop.hbase.io.RowResult

def from_bytes(b)
  String::from_java_bytes(b)
end

def retrieve_post(post_id)
  table = HTable.new(HBaseConfiguration.new, 'blogposts')
  result = table.get_row(post_id)
  rv = {}
  result.key_set().each { |key|
    rv[from_bytes(key)] = from_bytes(result.get(key).get_value)
  }
  rv
end

retrieve_post('post1').entries.each { |k,v|
  puts "#{k} => #{v}"
}