Class: WorkflowRESTClient::RemoteStep

Inherits:
Step
  • Object
show all
Defined in:
lib/rbbt/rest/client/run.rb,
lib/rbbt/rest/client/step.rb

Constant Summary

Constants inherited from Step

Step::INFO_SERIALIAZER, Step::STREAM_CACHE, Step::STREAM_CACHE_MUTEX

Instance Attribute Summary collapse

Attributes inherited from Step

#bindings, #dependencies, #dupped, #mutex, #pid, #result, #saved_stream, #seen, #stream

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Step

#_abort, #_clean_finished, #_exec, #abort_pid, #abort_stream, #aborted?, #checks, #child, clean, #dirty?, dup_stream, #error?, #exception, #execute_and_dup, #execute_dependency, #files_dir, files_dir, #get_exception, info_file, #info_file, #info_lock, #init_info, job_name_for_info_file, #join_stream, #kill_children, #load_file, log, #log, log_block, #log_dependency_exec, log_progress, #log_progress, log_string, #merge_info, #message, #messages, #pid_file, pid_file, prepare_for_execution, #prepare_result, #produce, #progress_bar, #provenance, #provenance_paths, purge_stream_cache, #rec_dependencies, #recoverable_error?, #recursive_inputs, #relay_log, #resolve_input_steps, #run_compute_dependencies, #run_dependencies, #save_file, #set_info, #short_path, #soft_grace, #stalled?, #status=, status_color, #step, step_info, #stop_dependencies, #streaming?, #update, wait_for_jobs

Constructor Details

#initialize(base_url, task = nil, base_name = nil, inputs = nil, result_type = nil, result_description = nil, is_exec = false, is_stream = false, stream_input = nil) ⇒ RemoteStep

Returns a new instance of RemoteStep.



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# File 'lib/rbbt/rest/client/step.rb', line 23

def initialize(base_url, task = nil, base_name = nil, inputs = nil, result_type = nil, result_description = nil, is_exec = false, is_stream = false, stream_input = nil)
  @base_url, @task, @base_name, @inputs, @result_type, @result_description, @is_exec, @is_stream, @stream_input = base_url, task, base_name, inputs, result_type, result_description, is_exec, is_stream, stream_input
  @base_url = "http://" << @base_url unless @base_url =~ /^https?:\/\//
  @mutex = Mutex.new
end

Instance Attribute Details

#base_name ⇒ Object

Returns the value of attribute base_name.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def base_name
  @base_name
end

#base_url ⇒ Object

Returns the value of attribute base_url.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def base_url
  @base_url
end

#inputs ⇒ Object

Returns the value of attribute inputs.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def inputs
  @inputs
end

#is_exec ⇒ Object

Returns the value of attribute is_exec.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def is_exec
  @is_exec
end

#is_stream ⇒ Object

Returns the value of attribute is_stream.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def is_stream
  @is_stream
end

#result_description ⇒ Object

Returns the value of attribute result_description.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def result_description
  @result_description
end

#result_type ⇒ Object

Returns the value of attribute result_type.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def result_type
  @result_type
end

#stream_input ⇒ Object

Returns the value of attribute stream_input.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def stream_input
  @stream_input
end

#task ⇒ Object

Returns the value of attribute task.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def task
  @task
end

#url ⇒ Object

Returns the value of attribute url.



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# File 'lib/rbbt/rest/client/step.rb', line 21

def url
  @url
end

Class Method Details

.get_streams(inputs, stream_input = nil) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 60

def self.get_streams(inputs, stream_input = nil)
  new_inputs = {}
  inputs.each do |k,v|
    stream = stream_input.to_s == k.to_s
    if Step === v 
      unless (v.done? or v.streaming?) # or RestClient::Step === v)
        v.run(true) and v.grace 
      end

      begin
        if stream
          new_inputs[k] = TSV.get_stream(v)
        else
          new_inputs[k] = v.load
        end
      rescue Exception
        raise $!
      end
    else
      new_inputs[k] = v
    end
  end
  new_inputs
end

Instance Method Details

#_restart ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 334

def _restart
  @done = nil
  @name = nil
  @started = nil
  @aborted = nil
  new_inputs = {}
  inputs.each do |k,i| 
    if File === i 
      new_inputs[k] = File.open(i.path)
    else
      new_inputs[k] = i
    end
  end
  @inputs = new_inputs
end

#_run_job(cache_type = :async) ⇒ Object 



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# File 'lib/rbbt/rest/client/run.rb', line 85

def _run_job(cache_type = :async)
  get_streams

  task_url = URI.encode(File.join(base_url, task.to_s))
  WorkflowRESTClient.__prepare_inputs_for_restclient(inputs)
  task_params = inputs.merge(:_cache_type => cache_type, :jobname => base_name, :_format => [:string, :boolean, :tsv, :annotations].include?(result_type) ? :raw : :json)

  if cache_type == :stream or cache_type == :exec and stream_input and inputs[stream_input]
    io =  self.stream_job(task_url, task_params, stream_input, cache_type) 
    return io
  else
    execute_job(task_url, task_params, cache_type)
  end

end

#abort ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 92

def abort
  return self if status == :done
  WorkflowRESTClient.get_json(@url + '?_update=abort') if @url and @name
  self
end

#clean ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 363

def clean
  begin
    params = {:_update => :clean}
    WorkflowRESTClient.clean_url(url, params) if @url
    _restart
  rescue Exception
    Log.exception $!
  end
  self
end

#clean_name ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 29

def clean_name
  @base_name
end

#done? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbbt/rest/client/step.rb', line 161

def done?
  @done || status.to_s == 'done'
end

#dup_inputs ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 98

def dup_inputs
  return if @dupped or ENV["RBBT_NO_STREAM"] == 'true'
  Log.low "Dupping inputs for #{path}"
  dupped_inputs = {}
  @inputs.collect do |k,input|
    dupped_inputs[k] = Step.dup_stream input
  end
  @inputs = dupped_inputs
  @dupped = true
end

#exec(noload = false) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 229

def exec(noload = false)
  @result ||= begin
                 if noload == :stream
                   _run_job(:exec)
                 else
                   exec_job 
                 end
                ensure
                  @started = true
               end
end

#exec_job ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 329

def exec_job
  res = _run_job(:exec)
  load_res res, result_type == :array ? :json : result_type
end

#execute_job(task_url, task_params, cache_type) ⇒ Object 



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# File 'lib/rbbt/rest/client/run.rb', line 45

def execute_job(task_url, task_params, cache_type)
  WorkflowRESTClient.capture_exception do
    task_url = URI.encode(File.join(base_url, task.to_s))

    sout, sin = Misc.pipe

    post_thread = Thread.new(Thread.current) do |parent|
      bl = lambda do |rok|
        if Net::HTTPOK === rok
          _url = rok["RBBT-STREAMING-JOB-URL"]
          @url = File.join(task_url, File.basename(_url)) if _url
          rok.read_body do |c,_a, _b|
            sin.write c
          end
          sin.close
        else
          parent.raise "Error in RestClient: " << rok.message
        end
      end

      Log.debug{ "RestClient execute: #{ url } - #{Misc.fingerprint task_params}" }
      RestClient::Request.execute(:method => :post, :url => task_url, :payload => task_params, :block_response => bl)
    end

    reader = Zlib::GzipReader.new(sout)
    res_io = Misc.open_pipe do |sin|
      while c = reader.read(Misc::BLOCK_SIZE)
        sin.write c
      end
      sin.close
      @done = true
    end

    ConcurrentStream.setup(res_io, :threads => [post_thread]) do
      @done = true
      @streaming = false
    end
  end
end

#file(file) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 169

def file(file)
  WorkflowRESTClient.get_raw(File.join(url, 'file', file))
end

#files ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 165

def files
  WorkflowRESTClient.get_json(File.join(url, 'files'))
end

#fork(noload = false, semaphore = nil) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 213

def fork(noload=false, semaphore=nil)
  init_job(:asynchronous)
end

#get ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 263

def get
  params ||= {}
  params = params.merge(:_format => [:string, :boolean, :tsv, :annotations,:array].include?(result_type.to_sym) ? :raw : :json )
  Misc.insist 3, rand(2) + 1 do
    begin
      init_job if url.nil?
      WorkflowRESTClient.get_raw(url, params)
    rescue
      Log.exception $!
      raise $!
    end
  end
end

#get_stream ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 173

def get_stream
  case @result
  when IO 
    @result
  when String
    StringIO.new @result
  else
    nil
  end
end

#get_streams ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 85

def get_streams
  return if @inputs_done
  @inputs = WorkflowRESTClient::RemoteStep.get_streams @inputs, @stream_input
  @inputs_done = true
  @inputs
end

#grace ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 184

def grace
  produce unless @started
  sleep 0.1 unless started?
  sleep 0.5 unless started?
  sleep 1 unless started?
  while not (done? or started?)
    sleep 1 
  end
end

#info(check_lock = false) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 129

def info(check_lock=false)
  @done = @info && @info[:status] && @info[:status].to_sym == :done
  @info = Persist.memory("RemoteSteps Info", :url => @url, :persist => true, :update => !@done) do
    init_job unless @url
    info = begin
             WorkflowRESTClient.get_json(File.join(@url, 'info'))
           rescue
             {}
           end
    info = WorkflowRESTClient.fix_hash(info)
    info[:status] = info[:status].to_sym if String === info[:status]
    info
  end
end

#init_job(cache_type = nil, other_params = {}) ⇒ Object

{{{ MANAGEMENT



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# File 'lib/rbbt/rest/client/step.rb', line 196

def init_job(cache_type = nil, other_params = {})
  cache_type = :asynchronous if cache_type.nil? and not @is_exec
  cache_type = :exec if cache_type.nil?
  get_streams
  @name ||= Persist.memory("RemoteSteps", :workflow => self, :task => task, :jobname => @name, :inputs => inputs, :cache_type => cache_type) do
    WorkflowRESTClient.post_jobname(File.join(base_url, task.to_s), inputs.merge(other_params).merge(:jobname => @name||@base_name, :_cache_type => cache_type))
  end
  if Open.remote? @name
    @url = @name
    @name = File.basename(@name)
  else
    @url = File.join(base_url, task.to_s, @name)
  end
  self
end

#join ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 241

def join
  init_job unless @url
  Log.debug{ "Joining RestClient: #{path}" }
  if IO === @result
    res = @result
    @result = nil
    Misc.consume_stream(res, true) 
  end

  if not (self.done? || self.aborted? || self.error?)
    self.info 
    return self if self.done? || self.aborted? || self.error?
    sleep 0.2 unless self.done? || self.aborted? || self.error?
    sleep 1 unless self.done? || self.aborted? || self.error?
    while not (self.done? || self.aborted? || self.error?)
      sleep 3
    end
  end

  self
end

#load ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 322

def load
  params = {}
  join unless done? or streaming?
  raise get_exception if error? or aborted?
  load_res get
end

#load_res(res, result_type = nil) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 277

def load_res(res, result_type = nil)
  stream = true if res.respond_to? :read
  join unless stream
  result_type ||= self.result_type
  case result_type
  when :string
    stream ? res.read : res
  when :boolean
    (stream ? res.read : res) == 'true'
  when :tsv
    if stream
      TSV.open(res, :monitor => true)
    else
      TSV.open(StringIO.new(res))
    end
  when :annotations
    if stream
      Annotated.load_tsv(TSV.open(res))
    else
      Annotated.load_tsv(TSV.open(StringIO.new(res)))
    end
  when :array
    (stream ? res.read : res).split("\n")
    res.split("\n")
  else
    json_text = if IO === res
                  res.read
                else
                  res
                end
    begin
      JSON.parse json_text
    rescue
      case
      when json_text =~ /^\d+$/
        json_text.to_i
      when json_text =~ /^\d+\.\d/
        json_text.to_f
      else
        raise $!
      end
    end
  end
end

#name ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 109

def name
  return nil if @is_exec
  return @path if @url.nil?
  (Array === @url ? @url.first : @url).split("/").last
end

#name=(name) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 115

def name=(name)
  @url = [base_url,task, name] * "/"
end

#nopid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbbt/rest/client/step.rb', line 125

def nopid?
  false
end

#path ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 221

def path
  if @url
    Misc.add_GET_param(@url, "_format", "raw")
  else
    [base_url, task, @base_name + '-' +  Misc.fingerprint(inputs)] * "/"
  end
end

#recursive_clean ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 350

def recursive_clean
  return
  begin
    params = {:_update => :recursive_clean}
    init_job(nil, params)
    WorkflowRESTClient.get_raw(url, params)
    _restart
  rescue Exception
    Log.exception $!
  end
  self
end

#run(no_load = false) ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 33

def run(no_load = false)
  no_load = @is_stream ? :stream : true if no_load

  @mutex.synchronize do
    @result ||= begin
                  if @is_exec
                    exec(no_load)
                  elsif no_load == :stream
                    _run_job(:stream)
                  elsif no_load
                    init_job 
                    nil
                  else
                    init_job 
                    join
                    self.load
                  end
                ensure
                  @started = true
                end
  end

  return @result if no_load == :stream
  no_load ? Misc.add_GET_param(path, "_format", "raw") : @result
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbbt/rest/client/step.rb', line 217

def running?
  ! %w(done error aborted).include? status.to_s
end

#started? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbbt/rest/client/step.rb', line 157

def started?
  @result != nil or @started or @streaming or @url
end

#status ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 144

def status
  return :done if @done
  return nil unless url or started?
  return :streaming if @streaming
  begin
    status = info[:status]
    @done = true if status and status.to_sym == :done
    status
  ensure
    @info = nil
  end
end

#stream_job(task_url, task_params, stream_input, cache_type = :exec) ⇒ Object 



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# File 'lib/rbbt/rest/client/run.rb', line 3

def stream_job(task_url, task_params, stream_input, cache_type = :exec)
  require 'rbbt/util/misc/multipart_payload'
  WorkflowRESTClient.capture_exception do
    @streaming = true

    Log.debug{ "RestClient stream #{Process.pid}: #{ task_url } #{stream_input} #{cache_type} - #{Misc.fingerprint task_params}" }
    res = RbbtMutiplartPayload.issue task_url, task_params, stream_input, nil, nil, true
    type = res.gets

    out = case type.strip
          when "LOCATION"
            @url = res.gets
            @url.sub!(/\?.*/,'')
            join
            WorkflowRESTClient.get_raw(@url)
            @done = true
            @streaming = false
          when /STREAM: (.*)/
            @url = $1.strip
            res.callback = Proc.new do
              Log.medium "Done streaming result from #{@url}"
              @done = true
              @streaming = false
            end
            res
          when "BULK"
            begin
              res.read
            ensure
              @done = true
              @streaming = false
            end
          else
            raise "What? " + type
          end

    ConcurrentStream.setup(out, :filename => @url)

    out
  end
end

#task_name ⇒ Object 



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# File 'lib/rbbt/rest/client/step.rb', line 119

def task_name
  return task if task
  init_job
  (Array === @url ? @url.first : @url).split("/")[-2]
end