Class: Gush::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/gush/client.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config = Gush.configuration) ⇒ Client

Returns a new instance of Client.



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# File 'lib/gush/client.rb', line 5

def initialize(config = Gush.configuration)
  @configuration = config
  @sidekiq = build_sidekiq
  @redis = build_redis
end

Instance Attribute Details

#configuration ⇒ Object (readonly)

Returns the value of attribute configuration.



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# File 'lib/gush/client.rb', line 3

def configuration
  @configuration
end

Instance Method Details

#all_workflows ⇒ Object 



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# File 'lib/gush/client.rb', line 59

def all_workflows
  redis.keys("gush.workflows.*").map do |key|
    id = key.sub("gush.workflows.", "")
    find_workflow(id)
  end
end

#configure {|configuration| ... } ⇒ Object

Yields:



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# File 'lib/gush/client.rb', line 11

def configure
  yield configuration
  @sidekiq = build_sidekiq
  @redis = build_redis
end

#create_workflow(name) ⇒ Object 



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# File 'lib/gush/client.rb', line 17

def create_workflow(name)
  begin
    flow = name.constantize.new
    flow.save
  rescue NameError
    raise WorkflowNotFound.new("Workflow with given name doesn't exist")
  end

  flow
end

#destroy_job(workflow_id, job) ⇒ Object 



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# File 'lib/gush/client.rb', line 102

def destroy_job(workflow_id, job)
  redis.del("gush.jobs.#{workflow_id}.#{job.class.to_s}")
end

#destroy_workflow(workflow) ⇒ Object 



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# File 'lib/gush/client.rb', line 97

def destroy_workflow(workflow)
  redis.del("gush.workflows.#{workflow.id}")
  workflow.jobs.each {|job| destroy_job(workflow.id, job) }
end

#enqueue_job(workflow_id, job) ⇒ Object 



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# File 'lib/gush/client.rb', line 114

def enqueue_job(workflow_id, job)
  job.enqueue!
  persist_job(workflow_id, job)

  sidekiq.push(
    'class' => Gush::Worker,
    'queue' => configuration.namespace,
    'args'  => [workflow_id, job.class.to_s]
  )
end

#find_workflow(id) ⇒ Object 



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# File 'lib/gush/client.rb', line 66

def find_workflow(id)
  data = redis.get("gush.workflows.#{id}")
  unless data.nil?
    hash = Gush::JSON.decode(data, symbolize_keys: true)
    keys = redis.keys("gush.jobs.#{id}.*")
    nodes = redis.mget(*keys).map { |json| Gush::JSON.decode(json, symbolize_keys: true) }
    workflow_from_hash(hash, nodes)
  else
    raise WorkflowNotFound.new("Workflow with given id doesn't exist")
  end
end

#load_job(workflow_id, job_id) ⇒ Object 



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# File 'lib/gush/client.rb', line 89

def load_job(workflow_id, job_id)
  workflow = find_workflow(workflow_id)
  data = redis.get("gush.jobs.#{workflow_id}.#{job_id}")
  return nil if data.nil?
  data = Gush::JSON.decode(data, symbolize_keys: true)
  Gush::Job.from_hash(workflow, data)
end

#next_free_id ⇒ Object 



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# File 'lib/gush/client.rb', line 49

def next_free_id
  id = nil
  loop do
    id = SecureRandom.uuid
    break if !redis.exists("gush.workflow.#{id}")
  end

  id
end

#persist_job(workflow_id, job) ⇒ Object 



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# File 'lib/gush/client.rb', line 85

def persist_job(workflow_id, job)
  redis.set("gush.jobs.#{workflow_id}.#{job.class.to_s}", job.to_json)
end

#persist_workflow(workflow) ⇒ Object 



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# File 'lib/gush/client.rb', line 78

def persist_workflow(workflow)
  redis.set("gush.workflows.#{workflow.id}", workflow.to_json)
  workflow.jobs.each {|job| persist_job(workflow.id, job) }
  workflow.mark_as_persisted
  true
end

#start_workflow(workflow, job_names = []) ⇒ Object 



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# File 'lib/gush/client.rb', line 28

def start_workflow(workflow, job_names = [])
  workflow.mark_as_started
  persist_workflow(workflow)

  jobs = if job_names.empty?
           workflow.initial_jobs
         else
           job_names.map {|name| workflow.find_job(name) }
         end

  jobs.each do |job|
    enqueue_job(workflow.id, job)
  end
end

#stop_workflow(id) ⇒ Object 



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# File 'lib/gush/client.rb', line 43

def stop_workflow(id)
  workflow = find_workflow(id)
  workflow.mark_as_stopped
  persist_workflow(workflow)
end

#worker_report(message) ⇒ Object 



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# File 'lib/gush/client.rb', line 106

def worker_report(message)
  report("gush.workers.status", message)
end

#workflow_report(message) ⇒ Object 



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# File 'lib/gush/client.rb', line 110

def workflow_report(message)
  report("gush.workflows.status", message)
end