Class: Ardtweeno::API

Inherits:
Object
  • Object
show all
Defined in:
lib/ardtweeno/api.rb

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.log ⇒ Object

Returns the value of attribute log.



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# File 'lib/ardtweeno/api.rb', line 37

def log
  @log
end

Class Method Details

.buildLineplot(nodeList, params) ⇒ Object

Ardtweeno::API#buildLineplot generate the data used in the Line Plot graph

  • Args :

    • ++ -> Array of Ardtweeno::Node, Hash params

  • Returns :

    • Array Fixnum, 168 data hourly packet total values for last week, Array String previous 7 day names

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 808

def buildLineplot(nodeList, params)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::WARN
  
  colour_codes = ["#40FF00", "#FFFF00", "#FF8000", "#FF4000", "#FE2E2E", "#FF0080", "#FF00FF", "#8000FF", "#0000FF", "#0080FF"]
  
  theParams = Hash.new
  theParams[:node] = params[:node]
  
  data = Array.new
  
  nodes = Ardtweeno::API.retrievenodes(nodeList, {:name=>params[:node]})
  packets = Ardtweeno::API.retrievepackets(nodeList, theParams)
  
  nodes[:nodes][0][:sensors].each_with_index do |i, index|
    data << {"label"=>i, "color"=>colour_codes[index], "data"=>[]}
  end
  
  unless packets[:packets].empty? 
    packets[:packets].each do |i|
      
      year, month, day = i.date.split("-")
      hour = i.hour
      minute = i.minute
      second = i.second
      
      time = Time.new(year, month, day, hour, minute, second).to_i * 1000
      
      unless i.data.empty?
        i.data.each_with_index do |j, index|
          data[index]["data"] << [time, j]
        end
      end
      
    end
  end      
  
  return data.to_json
end

.buildPunchcard(nodeList, params) ⇒ Object

Ardtweeno::API#buildPunchcard generate the data used in the Punchcard graph

  • Args :

    • ++ -> Array of Ardtweeno::Node, Hash params

  • Returns :

    • Array Fixnum, 168 data hourly packet total values for last week, Array String previous 7 day names

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 747

def buildPunchcard(nodeList, params)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::WARN
  
  data = Array.new
  days = Array.new
  
  today = DateTime.now
  
  theStart = today - 6

  theStartDay = "%02d" % theStart.day
  theStartMonth = "%02d" % theStart.month
  theStartYear = theStart.year.to_s
  
  theEndDay = "%02d" % today.day
  theEndMonth = "%02d" % today.month
  theEndYear = today.year.to_s
  
  startRange = theStartYear + "-" + theStartMonth + "-" + theStartDay
  endRange = theEndYear + "-" + theEndMonth + "-" + theEndDay
  
  @log.debug "From #{startRange} to #{endRange}"
  
  
  (theStart..today).each do |i|
    theDay = theStart.strftime('%a')
    days << theDay
    @log.debug theDay
    
    (0..23).each do |j|
      theDate = theStart.year.to_s + "-" + "%02d" % theStart.month + "-" + "%02d" % i.day
      theHour = "%02d" % j
      
      theParams = {:hour=>theHour, :date=>theDate, :node=>params[:node], :graph=>true}
      
      nodes = Ardtweeno::API.retrievepackets(nodeList, theParams)
      
      data << nodes[:found].to_i
    end
    
    theStart += 1
  end
  
  @log.debug days.inspect
  
  return data, days.reverse, "#{startRange} to #{endRange}"
end

.buildTopology(topology) ⇒ Object

Ardtweeno::API#buildTopology method for constructing the topology graph

  • Args :

    • ++ -> Hash containing structured topology data

  • Returns :

    • String containing the Raphael.js code to generate the graph

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 626

def buildTopology(topology)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::DEBUG
  
  @log.debug "Number of Zones: #{topology.count.to_s}"
  response = ""           # Will hold our response
  offset = 0              # Offset 
  totalsensorcount = countSensors(topology)    
  @log.debug "Total Sensor Count: " + totalsensorcount.to_s
  
  # Canvas height
  defaultheight = 700
  height = 100 + (totalsensorcount * 100)
  if height <= defaultheight
    height = defaultheight 
    @log.debug "Height less than defaultheight, setting canvas height to 700"
  end
  @log.debug "Canvas height: " + height.to_s

  # Set up the Canvas
  response += "var thepaper = new Raphael(document.getElementById('topology-canvas'), " +
                                  "500, #{height});\n"
                                  
  # Draw the graph
  topology.each_with_index do |i, index|
    
    # Initial hookup line
    response += "var hookup1 = thepaper.path('M 50 #{75 + offset} l 50 0');\n"
    
    # Print the Zone name
    response += "var zonetitle = thepaper.text(50, #{20+ offset}, '#{i[:zonename]}').attr({'font-size':20});"
    
    # Print the sensors
    i[:nodes].each_with_index do |j, jndex|
      
      # Print the node
      response += "var node = thepaper.path('M 100 #{100 + offset} " +
                          "l 0 -50 l 50 0 l 0 50 l -50 0').attr(" +
                          "{fill: 'red', 'href':'/graph/v1/punchcard/#{j[:name]}'});\n"
      
      # Print the node name
      response += "var nodetitle = thepaper.text(125, #{40 + offset}, '#{j[:name]}');"
      
      
      # Print the link to next node
      if i[:nodes].count > 1 
        unless (jndex + 1) == i.count
          response += "var nextnode1 = thepaper.path('M 75 #{75 + offset} l 0 " +
                      "#{(j[:sensorlist].count * 100) + 75} l 25 0');"
        end
      end
      
      # Print the sensors
      j[:sensorlist].each_with_index do |k, kndex|
        # Sensor 1 in each node is drawn slightly differently
        if kndex == 0 
          response += "var theline = thepaper.path('M 150 #{75 + offset} l 100 0');\n"
          response += "var thecircle = thepaper.circle(270, #{ 75 + offset}" +
                      ", 20).attr({fill:'green'});\n"
          
          # Print sensortitle
          response += "var sensor1Title = thepaper.text(350, #{75 + offset}, '#{k}');"
          
          offset += 75
        else              
        # Sensors beyond first
          response += "var theline = thepaper.path('M 200 #{offset} l 0 75 l 50 0');"
          response += "var thecircle = thepaper.circle(270, #{ 75 + offset}, 20).attr({fill:'green'});\n"
          
          # Print sensortitle
          response += "var sensor1Title = thepaper.text(350, #{75 + offset}, '#{k}');"
          
          offset += 75
        end
        
      end
      offset += 100
    end
  
  end    
  
  return response
end

.calculateAvgLoad(maxLoad) ⇒ Object

Ardtweeno::API#calculateAvgLoad calculate the average CPU load on the system

  • Args :

    • ++ -> Float maxload

  • Returns :

    • Float loadpercentage

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 933

def calculateAvgLoad(maxLoad)
  begin
    loadavg = File.read('/proc/loadavg')
    loads = loadavg.scan(/\d+.\d+/)
    onemin = loads[0]
    fivemin = loads[1]
    fifteenmin = loads[2]
        
    @log.debug "LoadAvg are as follows: 1min #{onemin}, 5min #{fivemin}, 15min #{fifteenmin}"
        
    loadval = (onemin.to_f / maxLoad)
    currentLoadPercentage = loadval * 100
        
    @log.debug "Currently running at #{'%.2f' % currentLoadPercentage}% of max load"
    
    return currentLoadPercentage
      
  rescue Exception => e
    @log.debug "Some issue accessing /proc/loadavg"
    onemin, fivemin, fifteenmin = 0, 0, 0
    
    loadval = (onemin.to_f / maxLoad)
    currentLoadPercentage = loadval * 100
    
    return currentLoadPercentage
  end
end

.calculateCPUCores ⇒ Object

Ardtweeno::API#calculateCPUCores calculate number of CPU cores on the system and returns the

maximum desirable load

  • Args :

    • ++ ->

  • Returns :

    • Float maxload

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 973

def calculateCPUCores()
  begin # Checking for multi-core CPU
    cpuinfo = File.read('/proc/cpuinfo')
    coreinfo = cpuinfo.scan(/cpu cores\s+:\s+\d+/)
      
    tempVal = coreinfo[0]
    numOfCores = tempVal.scan(/\d+/)[0].to_i
    numOfThreadsPerCore = coreinfo.size / numOfCores
    maxLoad = (numOfThreadsPerCore * numOfCores).to_f
    
    @log.debug "Found #{numOfCores} cores with #{numOfThreadsPerCore} threads per core"
    @log.debug "Max desirable cpu load: #{maxLoad}"
    
    return maxLoad
    
  rescue Exception => e
    @log.debug "Unable to find cpu core info in /proc/cpuinfo, assuming system has a single core"
    maxLoad = 1.0
    
    return maxLoad
  end
end

.calculateMemLoad ⇒ Object

Ardtweeno::API#calculateMemLoad calculate the Memory load on the system

  • Args :

    • ++ ->

  • Returns :

    • Fixednum usedmem, Fixedmem totalmem

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 894

def calculateMemLoad()
  begin
    memhash = Hash.new
    meminfo = File.read('/proc/meminfo')
    meminfo.each_line do |i| 
    key, val = i.split(':')
    if val.include?('kB') then val = val.gsub(/\s+kB/, ''); end
      memhash["#{key}"] = val.strip
    end
        
    totalMem = memhash["MemTotal"].to_i
    freeMem = memhash["MemFree"].to_i + memhash["Buffers"].to_i + memhash["Cached"].to_i
    usedMem = totalMem - freeMem
        
    @log.debug "Total Memory: #{totalMem} (100%)"
    @log.debug "Used Memory: #{usedMem} (#{'%.2f' % ((usedMem / totalMem.to_f) * 100)}%)"
    @log.debug "Free Memory: #{freeMem} (#{'%.2f' % ((freeMem / totalMem.to_f) * 100)}%)"
    
    return usedMem, totalMem
    
  rescue Exception => e
    @log.debug "Some issue accessing /proc/meminfo"
    usedMem, totalMem = 0, 0
    
    return usedMem, totalMem
  end
end

.countSensors(topology) ⇒ Object

Ardtweeno::API#countSensors private method for counting the number of sensors in the toplogy

  • Args :

    • ++ -> Hash containing structured topology data

  • Returns :

    • Fixnum count of the number of sensors in the topology

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 721

def countSensors(topology)
  count = 0
  topology.each do |i|
    unless i[:nodes].nil?
      i[:nodes].each do |j|
        unless j[:sensorlist].nil?
          count += j[:sensorlist].count
        end
      end
    end
  end
  return count
end

.diskUsage ⇒ Object

Ardtweeno::API#diskUsage parse the disk usage statistics outputted by the linux utility df

  • Args :

    • ++ ->

  • Returns :

    • Array of Hash String, String, String, String, String

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 1007

def diskUsage
  diskusage = Array.new

  fileinfo = `df -h`
  
  lines = fileinfo.split("\n")
  lines.delete_at(0)
  
  lines.each do |i|
    i.gsub!(/\s+/, " ")
    device, size, used, avail, use, mount = i.split(" ")
    diskusage << {:device=>device, :size=>size, :used=>used, :avail=>avail, :use=>use, :mount=>mount}
  end
  
  return diskusage
end

.handleDate(theArray, theParams) ⇒ Object

Ardtweeno::API#handleDate method to filter packet data according to meet the REST API date request

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 404

def handleDate(theArray, theParams)
  @log.debug "handleDate function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the packet required
    if i.date == theParams[:date]
      containerArray << i
    end
  end
  
  @log.debug "Returning Packet data after Date filtering"
  return containerArray
end

.handleHour(theArray, theParams) ⇒ Object

Ardtweeno::API#handleHour method to filter packet data according to meet the REST API seqNo request

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 351

def handleHour(theArray, theParams)
  @log.debug "handleHour function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the packet required
    if i.hour == theParams[:hour]
      containerArray << i
    end
  end
  
  @log.debug "Returning Packet data after Hour filtering"
  return containerArray
end

.handleLength(theArray, theParams) ⇒ Object

Ardtweeno::API#handleLength method to filter according to the REST API pagination request

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 496

def handleLength(theArray, theParams)
  @log.debug "handleLength function executing"
  
  modifiedArray = Array.new
  length = 0
  
  if theParams.has_key?(:length) and theParams[:length].to_i < 100
    length = theParams[:length].to_i
    
    @log.debug "theParams has a length value of #{length}"
  else
    length = 100
    @log.debug "Defaulting to the default length of #{length}"
  end
  
  if theArray.size > length
    @log.debug "Length is smaller than the size of theArray"
    
    if theParams[:graph] 
      length = theArray.size;
      @log.debug "This is a graph, setting packets length to max size"
    end
    
    (0..(length - 1)).step(1) do |i|
      modifiedArray << theArray[i]
    end
    
    @log.debug "Returning transformed array"
    return modifiedArray # Returning transformed array
  else
    @log.debug "No need to perform any operations, returning original array"
    return theArray # No need to perform any transformation, length pagination request
                    # is larger than the available data, returning original
  end
end

.handleMinute(theArray, theParams) ⇒ Object

Ardtweeno::API#handleMinute method to filter packet data according to meet the REST API seqNo request

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 377

def handleMinute(theArray, theParams)
  @log.debug "handleHour function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the packet required
    if i.minute == theParams[:minute]
      containerArray << i
    end
  end
  
  @log.debug "Returning Packet data after Minute filtering"
  return containerArray
end

.handleName(theArray, theParams) ⇒ Object

Ardtweeno::API#handleName method to filter packet data according to REST API request

  • Args :

    • ++ -> Array nodes, Hash params

  • Returns :

    • Array

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 294

def handleName(theArray, theParams)
  @log.debug "handleName function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the node required
    if i[:name] == theParams[:name]
      containerArray << i
      return containerArray
    end
  end
  
  @log.debug "name not found, returning empty array"
  return containerArray  
end

.handleNodeKey(theArray, theParams) ⇒ Object

Ardtweeno::API#handleNodeKey method to filter packet data according to REST API request

  • Args :

    • ++ -> Array nodes, Hash params

  • Returns :

    • Array

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 266

def handleNodeKey(theArray, theParams)
  @log.debug "handleNodeKey function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the node required
    if i[:key] == theParams[:nodekey]
      containerArray << i
      return containerArray
    end
  end
  
  @log.debug "key not found, returning empty array"
  return containerArray  
end

.handleOffset(theArray, theParams) ⇒ Object

Ardtweeno::API#handleOffset method to filter according to the REST API pagination request

  • Args :

    • ++ -> Array theArray, Hash of parameters theParams

  • Returns :

    • Array

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 454

def handleOffset(theArray, theParams)
  @log.debug "handleOffset function executing"
  
  if theParams.has_key?(:offset)
    @log.debug "params hash contains an offset value of #{theParams[:offset]}"
    modifiedArray = Array.new
    
    if theParams[:offset].to_i == 0 or theParams[:offset].to_i < 0
      @log.debug "Offset value is either equal to 0 or less than 0 returning default array"
      return theArray # Offset value equates to start of array
      
    elsif theParams[:offset].to_i > theArray.size
      @log.debug "Offset value is larger than the size of the available array, returning" + 
                  " empty array"
      return [] # The offset can never be satisfied returning empty array
      
    else
      @log.debug "theArray size: #{theArray.size}"
      ((theParams[:offset].to_i)..(theArray.size - 1)).step(1) do |i|
        modifiedArray << theArray[i]
      end
      return modifiedArray # Returning the transformed array
      
    end
  end
  
  @log.debug "No changes made, returning original array"
  return theArray # No change, returning original array
end

.handlePagination(theArray, theParams) ⇒ Object

Ardtweeno::API#handlePagination method to filter packet data according to meet the REST API pagination request

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 431

def handlePagination(theArray, theParams)
  @log.debug "handlePagination function called"
  
  offsetTransformed = handleOffset(theArray, theParams)
  lengthTransformed = handleLength(offsetTransformed, theParams)
  sortTransformed = handleSort(lengthTransformed, theParams)
  
  final = sortTransformed
  
  return final # return the Array modified by pagination requests
end

.handleSeqNo(theArray, theParams) ⇒ Object

Ardtweeno::API#handleSeqNo method to filter packet data according to meet the REST API seqNo request

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 323

def handleSeqNo(theArray, theParams)
  @log.debug "handleSeqNo function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the packet required
    if i.seqNo == theParams[:seqno].to_i
      containerArray << i
      return containerArray
    end
  end
  
  @log.debug "seqNo not found, returning empty array"
  return containerArray
end

.handleSort(theArray, theParams) ⇒ Object

Ardtweeno::API#handleSort method to filter according to the REST API pagination request.

  • Args :

    • ++ -> Array of Ardtweeno::Packet theArray, Hash of parameters theParams

  • Returns :

    • Array of Ardtweeno::Packet sorted by seqNo values either ascending or decending

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 544

def handleSort(theArray, theParams)
  @log.debug "handleSort function executing"
  
  if theParams.has_key?(:sort) and theParams[:sort] == "desc"
    begin
    
      theArray = theArray.sort_by {|x| x.seqNo}
      return theArray.reverse()
    rescue Exception => e
      return theArray.reverse()
    end

  else
    return theArray # Order is already ascending, return original array
  end

end

.handleVersion(theArray, theParams) ⇒ Object

Ardtweeno::API#handleVersion method to filter according to REST API request

  • Args :

    • ++ -> Array nodes, Hash params

  • Returns :

    • Array

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 236

def handleVersion(theArray, theParams)
  @log.debug "handleVersion function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the node required
    if i[:version] == theParams[:version]
      containerArray << i
    end
  end
  
  if containerArray.size == 0
    @log.debug "version not found, returning empty array"
  end
  
  return containerArray  
end

.handleZoneName(theArray, theParams) ⇒ Object

Ardtweeno::API#handleZoneName method to filter according to REST API request

  • Args :

    • ++ -> Array nodes, Hash params

  • Returns :

    • Array

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 206

def handleZoneName(theArray, theParams)
  @log.debug "handleZoneName function called"
  
  containerArray = Array.new
  
  theArray.each do |i|
    # Found the zone required
    if i[:zonename] == theParams[:zonename] or theParams[:role] == "admin"
      containerArray << i
    end
  end
  
  if containerArray.size == 0
    @log.debug "version not found, returning empty array"
  end
  
  return containerArray
end

.parseTopology(zones, nodes) ⇒ Object

Ardtweeno::API#parseTopology method to construct the topology Hash used in API#buildTopology

  • Args :

    • ++ -> Hash zones containing raw data from API#retrievezones, 

      Hash nodes containing raw data from API#retrievenodes

  • Returns : -

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 574

def parseTopology(zones, nodes)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::DEBUG
  
  zonelist = Array.new
  
  begin      
    
    zones[:zones].each do |i|
      zonename = i[:zonename]
      nodelist = Array.new
      
      i[:nodes].each do |j|
        nodename = j
        sensorlist = Array.new
        
        nodes[:nodes].each do |k|
          if nodename == k[:name]
            sensorlist = k[:sensors]
          end
        end
        
        nodelist << {:name=> nodename, :sensorlist=> sensorlist}
      end
      
      zonelist << {:zonename=>zonename, :nodes=>nodelist}
    end
    
    response = zonelist
    
  rescue Exception => e
    @log.debug e
    return e
  end
  
  @log.debug response.inspect
  return response
  
end

.retrievenodes(nodeList, params) ⇒ Object

Ardtweeno::API#retrievenodes method to filter node data according to REST API request

  • Args :

    • ++ ->

  • Returns : -

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 88

def retrievenodes(nodeList, params)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::DEBUG
  
  params = params.each_with_object({}){|(k,v), h| h[k.to_sym] = v}
  
  nodes = Array.new
  
  nodeList.each do |i|
    
    data = {:name=>i.node, :key=> i.key, :description=>i.description, 
            :version=>i.version, :sensors=>i.sensors, 
            :packets=>i.packetqueue.size}
      
    nodes << data 
  end
  
  
  if params.has_key?(:name)
    nodes = handleName(nodes, params)
  end
  
  if params.has_key?(:nodekey)
    nodes = handleNodeKey(nodes, params)
  end
  
  if params.has_key?(:version)
    nodes = handleVersion(nodes, params)
  end
  
   
  @log.debug "Performing pagination functions on node list"
  params.delete(:seqno) # Nodes don't have seqno's
  nodes = handlePagination(nodes, params) # Perform pagination operations on results
  
  
  final = {:nodes=>nodes, :total=>nodeList.size, :found=>nodes.size}
  
  return final # Return the final results
end

.retrievepackets(nodeList, params) ⇒ Object

Ardtweeno::API#retrievepackets method to filter packet data according to REST API request

  • Args :

    • ++ ->

  • Returns : -

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 140

def retrievepackets(nodeList, params)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::DEBUG
  
  params = params.each_with_object({}){|(k,v), h| h[k.to_sym] = v}
  
  packetqueue = Array.new

  if params.has_key?(:node)
    @log.debug "the params has a node key"
    nodeList.each do |i|
      @log.debug "Matching #{i.node} with #{params[:node]}"
      if i.node == params[:node]
        @log.debug params
        @log.debug i.node            
        packetqueue = i.packetqueue # Found the node we are interested in,
                                    # extract the packets                        
        break # Node found break and continue
      end
    end
  else # Aggregate all

    @log.debug "the params does not have a node key"
    nodeList.each do |i|
      packetqueue += i.packetqueue
      packetqueue = packetqueue.sort_by {|x| x.seqNo} # Not exactly ideal.. but it works ;p
    end
  end
  
  # From most specific to least specific
  
  if params.has_key?(:seqno)
    packetqueue = handleSeqNo(packetqueue, params)
  end
  
  if params.has_key?(:minute)
    packetqueue = handleMinute(packetqueue, params)
  end
 
  if params.has_key?(:hour)
    packetqueue = handleHour(packetqueue, params)
  end
                
  if params.has_key?(:date)
    packetqueue = handleDate(packetqueue, params)
  end


  packets = handlePagination(packetqueue, params) # Perform pagination operations on results
  
  final = {:packets=>packets, :total=>packetqueue.size, :found=>packets.size}
  
  return final # Return the final results
end

.retrievezones(config, params) ⇒ Object

Ardtweeno::API#retrievezones method to filter node zone according to REST API request

  • Args :

    • ++ ->

  • Returns : -

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 49

def retrievezones(config, params)
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::DEBUG
  
  params = params.each_with_object({}){|(k,v), h| h[k.to_sym] = v}
  
  zones = Array.new
  
  config["zones"].each do |i|
    data = {:zonename=>i["zonename"], :key=> i["zonekey"], :nodes=>i["zonenodes"]}
      
    zones << data 
  end
  
  if params.has_key?(:zonename)
    zones = handleZoneName(zones, params)
  end
  
  @log.debug "Performing pagination functions on zone list"
  params.delete(:seqno) # Zones don't have seqno's
  zones = handlePagination(zones, params) # Perform pagination operations on results
  
  
  final = {:zones=>zones, :total=>config["zones"].size, :found=>zones.size}
  
  return final # Return the final results
end

.status ⇒ Object

Ardtweeno::API#status generate a status report for the system

  • Args :

    • ++ ->

  • Returns :

    • :cpuload, Fixedmem :memload

  • Raises :



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# File 'lib/ardtweeno/api.rb', line 859

def status
  @log = Ardtweeno.options[:log] ||= Logger.new(STDOUT)
  @log.level = Ardtweeno.options[:level] ||= Logger::DEBUG
  # Get CPU
  maxLoad = calculateCPUCores()
  
  # Get Avgload
  currentLoadPercentage = calculateAvgLoad(maxLoad)
    
  # Get MEM Usage
  usedMem, totalMem = calculateMemLoad()
  
  
  thecpuload = '%.2f' % currentLoadPercentage
  thememload = '%.2f' % ((usedMem / totalMem.to_f) * 100)
            
  theResponse = {:cpuload=>thecpuload,
                 :memload=>thememload}
  
  @log.debug theResponse.inspect
  
  return theResponse
end