Class: ApplicationLogs

Inherits:
Object
  • Object
show all
Defined in:
lib/oats/application_logs.rb

Overview

Returns all the matching IPs from the listed logs

Constant Summary collapse 

5
@@app_logs_error_getter =

webHostName => ApplicationLogs objects

{}
@@ip = 
nil
{}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(host, logs) ⇒ ApplicationLogs

Returns a new instance of ApplicationLogs.



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# File 'lib/oats/application_logs.rb', line 26

def initialize(host,logs)
  ApplicationLogs.set_ip unless @@ip
  @logs = logs
  @log_error_count = []
  @command = "plink #{host} -l loguser sudo grep -i #{@@ip} " + @logs.join(' ')
  ApplicationLogs.set_plink_cmd_params
  @command_issue = @command
end

Class Method Details

.new_errors(initial = false) ⇒ Object

Call returns only errors occurring after the previous call.



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# File 'lib/oats/application_logs.rb', line 13

def ApplicationLogs.new_errors(initial = false)
  logs = $oats['env']['web']['logs']
  logs = nil if logs.nil? or logs.empty?
  return [] unless logs
  host = $oats['env']['web']['host']
  if @@app_logs_error_getter[host]
    return [] if initial
  else
    @@app_logs_error_getter[host] = ApplicationLogs.new(host,logs)
  end
  return @@app_logs_error_getter[host].new_errors
end

.set_ip ⇒ Object 



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# File 'lib/oats/application_logs.rb', line 155

def ApplicationLogs.set_ip
  IO.popen('ipconfig') do |io|
    while io.gets do
      @@ip = $_.chomp.sub(/.*IP Address.*: (\d.*\d).*/,'\1') if /IP Address.*: / =~ $_
    end
  end
end

.set_plink_cmd_params(from_tail = nil) ⇒ Object 



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# File 'lib/oats/application_logs.rb', line 93

def ApplicationLogs.set_plink_cmd_params(from_tail = nil)
  host = $oats['env']['web']['host']
  return if @@plink_cmd_params[host]
  # Ossh does not support this option anymore. Must go in via Paegant
  # Clean-up the code below later.
  @@plink_cmd_params = ''
  error = 0
  error_msg = nil
  error_msg2 = nil
  correct_response = false
  cmd_issue = "plink #{host} -l loguser whoami 2>&1"
  cmd_display = cmd_issue
  $log.debug "Issuing: " + cmd_issue
  $log.debug "Please start Paegant with loguser key if there is no response in {PLINK_TIMEOUT} seconds."
  begin
    timeout(PLINK_TIMEOUT) do
      IO.popen(cmd_issue) do |ios|
        while ios.gets(':') do
          if /s password:/ =~ $_
            error = 1
            error_msg = "Received Plink authentication challenge from "
            error_msg2 = "If you have not started Paegant already, please do so."
          elsif /s password:/ =~ $_
            error = 2
            error_msg = "Received Plink authentication challenge from "
            error_msg2 = "If you have not defined an entry for [#{host} on Putty already, please do so."
          elsif /^Password:/ =~ $_
            error = 3
            error_msg = "Received 'sudo root' authentication challenge from "
            error_msg2 = "Sudo password cash has timed out. Please type the following on a shell commandline: #{cmd_display}"
          elsif /^Unable to open connection:/ =~ $_
            error = 4
            error_msg = "Could not connect to "
            error_msg2 = "You need to unset error log interrogation to run this test in this environment."
#            elsif /^root/ =~ $_
          elsif /^loguser/ =~ $_
            correct_response = true
          end
          $log.error $_ unless $_.nil? or correct_response
          ios.gets
          $log.error $_ unless $_.nil? or correct_response
        end
      end
    end
  rescue Timeout::Error
    $log.error "plink command timed out after [#{PLINK_TIMEOUT}] seconds."
  end
  if error == 0 and correct_response
    $log.info "Received proper response from Plink."
    return
  else
    if error_msg
      if error_msg2
        $log.error error_msg + "[#{host}]"
      else
        raise(OatsSetupError,error_msg)
      end
      raise(OatsSetupError,error_msg2)
    end
  end
end

.tail_errors ⇒ Object

Tails logs continuously.



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# File 'lib/oats/application_logs.rb', line 62

def ApplicationLogs.tail_errors
  tail_ip = $oats['execution']['tail_logs_ip']
  logs = $oats['env']['web']['logs']
  logs = nil if logs.nil? or logs.empty?
  host = $oats['env']['web']['host']
  if tail_ip
    raise(OatsBadInput, "The execution:tail_logs_ip is set to [#{tail_ip}] but env:web:logs is empty.") unless logs
  else
    return
  end
  if tail_ip and tail_ip.instance_of?(String)
    if /^\d\d\.\d\d*\.\d\d*\.\d\d*$/ =~ tail_ip
      @@ip = tail_ip
    else
      raise(OatsBadInput, "Input for execution:tail_logs_ip [#{tail_ip}] is not in proper IP format.")
    end
  else
    ApplicationLogs.set_ip unless @@ip
  end
  ApplicationLogs.set_plink_cmd_params(true)
  command = "plink #{host} -l loguser sudo tail -f " + logs.join(' ')
  command_issue = command
  puts "Filtering for [#{@@ip}] after executing command: #{command}"
  IO.popen(command_issue) do |io|
    while io.gets do
      puts $_ if Regexp.new(@@ip) =~ $_ or /^==>/ =~ $_
    end
  end
  exit 0 # Should never get here. User has to kill the process to quit
end

Instance Method Details

#new_errors ⇒ Object 



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# File 'lib/oats/application_logs.rb', line 35

def new_errors
  $log.debug "Interrogating the application logs: #{@command_issue}"
  errors = IO.popen(@command).readlines
  total_errors = 0
  @log_error_count.each {|i| total_errors += i}
  new_error = []
  return new_error if total_errors == errors.length
  i = 0
  new_error_count = []
  new_error_count[0] = 0
  errors.each do |line|
    prefix = Regexp.new('^'+@logs[i]+':')
    unless prefix =~ line
      @log_error_count[i] = new_error_count[i]
      i += 1
      break if i == @logs.length
      new_error_count[i] = 0
      redo
    end
    new_error_count[i] += 1
    new_error << line if new_error_count[i] > (@log_error_count[i] ? @log_error_count[i] : 0)
  end
  @log_error_count[i] = new_error_count[i]
  return new_error
end