Class: Chimp::ChimpDaemonClient

Inherits:
Object
  • Object
show all
Defined in:
lib/right_chimp/daemon/ChimpDaemonClient.rb

Overview

The ChimpDaemonClient contains the code for communicating with the RESTful chimpd Web service

Class Method Summary collapse

Class Method Details

.create_group(host, port, name, type, concurrency) ⇒ Object 



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 98

def self.create_group(host, port, name, type, concurrency)
  uri = "http://#{host}:#{port}/group/#{name}/create"
  payload = { 'type' => type, 'concurrency' => concurrency }.to_yaml
  response = RestClient.post(uri, payload)
  return YAML::load(response.body)
end

.quit(host, port) ⇒ Object

quit a remote chimpd



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 70

def self.quit(host, port)
  response = RestClient.post "http://#{host}:#{port}/admin", { 'shutdown' => 'true' }.to_yaml
  return response.code
end

.retrieve_group_info(host, port, group_name, status) ⇒ Object 



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 85

def self.retrieve_group_info(host, port, group_name, status)
  uri = "http://#{host}:#{port}/group/#{group_name}/#{status}"
  response = RestClient.get uri
  group = YAML::load(response.body)
  return group
end

.retrieve_job_info(host, port) ⇒ Object

retrieve job info from a remote chimpd



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 78

def self.retrieve_job_info(host, port)
  uri = "http://#{host}:#{port}/job/0"
  response = RestClient.get uri
  jobs = YAML::load(response.body)
  return jobs
end

.retry_group(host, port, group_name) ⇒ Object 



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 105

def self.retry_group(host, port, group_name)
  uri = "http://#{host}:#{port}/group/#{group_name}/retry"
  response = RestClient.post(uri, {})
  return YAML::load(response.body)
end

.set_job_status(host, port, job_id, status) ⇒ Object 



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 92

def self.set_job_status(host, port, job_id, status)
  uri = "http://#{host}:#{port}/job/#{job_id}/update"
  response = RestClient.post uri, { :status => status}
  return YAML::load(response.body)
end

.submit(host, port, chimp_object, job_uuid) ⇒ Object

Submit a Chimp object to a remote chimpd



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# File 'lib/right_chimp/daemon/ChimpDaemonClient.rb', line 10

def self.submit(host, port, chimp_object, job_uuid)
  uri = "http://#{host}:#{port}/job/process"
  attempts = 3

  begin
    # We are sending to the chimp host+port the actual chimp_object.
    Log.debug "Sending job to chimpd webserver"
    response = RestClient.post uri, chimp_object.to_yaml


    if response.code > 199 and response.code < 300
      Log.debug "Response code was #{response.code}"
      id = YAML::load(response.body)['id']
      #ID changes upon execution, not upon submission.
      job_uuid = YAML::load(response.body)['job_uuid']
      puts "["+job_uuid+"]"
      return true
    else
      $stderr.puts "["+job_uuid+"] WARNING: error submitting to chimpd! response code: #{response.code}"
      return false
    end

  rescue RestClient::RequestTimeout => ex
    $stderr.puts "["+job_uuid+"] WARNING: Request timeout talking to chimpd for job #{chimp_object.script}: #{ex.message} (#{ex.http_code})"
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue RestClient::InternalServerError => ex

    $stderr.puts "["+job_uuid+"] WARNING: Error submitting job to chimpd: #{ex.message}, retrying..."
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue Errno::ECONNRESET => ex
    $stderr.puts "["+job_uuid+"] WARNING: Connection reset by peer, retrying..."
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue Errno::EPIPE => ex
    $stderr.puts "["+job_uuid+"] WARNING: broken pipe, retrying..."
    attempts -= 1
    sleep 5 and retry if attempts > 0
    return false

  rescue Errno::ECONNREFUSED => ex
    $stderr.puts "["+job_uuid+"] ERROR: connection refused, aborting"
    return false

  rescue RestClient::Exception => ex
    $stderr.puts "["+job_uuid+"] ERROR: Error submitting job to chimpd #{chimp_object.script}: #{ex.message}"
    return false
  end
end