Class: RseProxy::PassThru

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

Instance Method Summary collapse

Constructor Details

#initialize(serversx = [], servers: serversx, log: nil, jobfilter: nil) ⇒ PassThru

job_filter (which is optional) expects a block



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# File 'lib/rse.rb', line 106

def initialize(serversx=[], servers: serversx, log: nil, jobfilter: nil )

  DRb.start_service

  @servers = servers.map do |x|

    host, port = x.is_a?(Hash) ? [x[:host], x[:port]] : x

  end

  @log = Logger.new log, 'daily' if log

  @rse = nil
  @jobfilter = jobfilter

end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args) ⇒ Object (private) 



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# File 'lib/rse.rb', line 207

def method_missing(method_name, *args)
  fetch_server() { |rse| rse.get.method(method_name).call(*args) }
end

Instance Method Details

#delete ⇒ Object 



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# File 'lib/rse.rb', line 123

def delete()
  fetch_server() { |rse| rse.delete }
end

#fetch_server(job = nil) ⇒ Object 



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# File 'lib/rse.rb', line 157

def fetch_server(job=nil)

  host, port = nil, nil

  exit if @servers.empty?

  # using a job filter we can send a job (by checking its name) to
  # a specific server
  #
  r = @jobfilter.call(job) if job and @jobfilter.is_a? Proc

  server = if r then
    r
  else
    @log.info 'job: ' + job.inspect if @log
    @servers.first
  end

  puts 'server: ' + server.inspect

  begin
    host, port = server
    @rse = DRbObject.new_with_uri("druby://#{host}:#{port}")

    yield(@rse) if block_given?

  rescue

    @servers.shift unless port.to_i > 61005
    @rse = nil
    puts ($!).inspect
    @log.warn "server #{host}:#{port} #{($!).inspect}" if @log
    #sleep 1
    #jr20210725 retry


  end

end

#get ⇒ Object 



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# File 'lib/rse.rb', line 127

def get()
  fetch_server() { |rse| rse.get }
end

#package_methods(name) ⇒ Object 



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# File 'lib/rse.rb', line 139

def package_methods(name)
  fetch_server() { |rse| rse.package_methods(name) }
end

#post ⇒ Object 



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# File 'lib/rse.rb', line 135

def post()
  fetch_server() { |rse| rse.post }
end

#put ⇒ Object 



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# File 'lib/rse.rb', line 131

def put()
  fetch_server() { |rse| rse.put }
end

#run_job(package, job, params = {}, *args) ⇒ Object 



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# File 'lib/rse.rb', line 143

def run_job(package, job, params={}, *args)

  if @log then
    @log.info "package: %s, job: %s, " +
        "params: %s, args: %s" % [package, job, params, args]
  end

  #we pass in the job to determine the server
  fetch_server(job) do |rse|
    rse.run_job package, job, params, *args
  end

end

#type ⇒ Object 



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# File 'lib/rse.rb', line 197

def type()
  fetch_server() { |rse| rse.type }
end

#type=(s) ⇒ Object 



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# File 'lib/rse.rb', line 201

def type=(s)
  fetch_server() { |rse| rse.type=(s) }
end