Module: Mongobile::MongoHelper

Included in:
App
Defined in:
lib/mongobile/mongo_helper.rb

Instance Method Summary collapse

Instance Method Details

#connection ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 3

def connection
  @connection ||= begin
    host = ARGV[0] || "127.0.0.1"
    port = ARGV[1] || 27017
    Mongo::Connection.new(host, port)
  end
end

#db(d = nil) ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 11

def db(d=nil)
  connection.db(d || params[:id]) rescue nil
end

#document_list(collection, query = {}) ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 40

def document_list(collection, query = {})
  collection.find(query, query_options)
end

#file_size(database) ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 44

def file_size(database)
  "%0.2f MB" % (database.stats["fileSize"] / 1024**2)
end

#find_doc(id, collection) ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 27

def find_doc(id, collection)
  collection.find_one({ "_id" => get_key(id) }) || collection.find_one({ "_id" => id.to_s })
end

#get_key(key) ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 15

def get_key(key)
  $stderr.puts "GetKey : #{key}"
  return nil if key.nil?

  key.gsub!('"', '')
  if key =~ /^[0-9]+$/
    return key.to_i
  else
    return BSON::ObjectID.from_string(key) rescue key
  end
end

#normalize_stats(stats) ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 48

def normalize_stats(stats)
  r={}
  stats.each do |k,v|
    if k =~ /size/i
      if v.kind_of?(Hash)
        v.each do |ki,vi|
          v[ki]="%0.2f MB" % (vi.to_f/1024**2)
        end
        r[k] = v
      else
        r[k]="%0.2f MB" % (v.to_f/1024**2)
      end
    else
      r[k]=v
    end
  end
  r
end

#ops_per_second ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 71

def ops_per_second
  c1 = c2 = nil
  delay = Benchmark.realtime do
    c1 = server_status["opcounters"]
  end
  t1 = Time.now

  sleep 1
  delay += Benchmark.realtime do
    c2 = server_status["opcounters"]
  end
  t2 = Time.now

  ops_average = {"query" => 0, "insert" => 0, "command" => 0, "update" => 0, "getmore" => 0, "delete" => 0}
  ops_average.keys.each do |k|
    ops_average[k] = ((c2[k] - c1[k])/(t2-t1-delay)).round
  end


#       4.times do
#         delays << Benchmark.realtime do
#           counters << server_status["opcounters"]
#         end
#         time_list << Time.now
#
#         sleep 1
#       end
#
#       ops_average = {"query" => 0, "insert" => 0, "command" => 0, "update" => 0, "getmore" => 0, "delete" => 0}
#       time_average = 0
#       1.upto(counters.size-1) do |index|
#         ops_average.keys.each do |k|
#           ops_average[k] += (counters[index][k] - counters[index-1][k])
#         end
#         time_average += (time_list[index] - time_list[index-1]) - delays[index]
#       end
#
#       time_average /= counters.size
#
#       ops_average.each do |k,v|
#         ops_average[k] = ((ops_average[k] / counters.size)/time_average).round
#       end

  ops_average
end

#query_options ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 31

def query_options
  options = {}
  options[:limit] = params[:limit].nil? ? 25 : params[:limit].to_i
  options[:sort] = [["_id", (params[:descending] == "true" ? 'descending' : 'ascending')]]
  options[:skip] = params[:skip].nil? ? 0 : params[:skip].to_i

  options
end

#server_status ⇒ Object 



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# File 'lib/mongobile/mongo_helper.rb', line 67

def server_status
  db("test").command(:serverStatus => 1)
end