Class: RIO::Factory

Inherits:
Object show all
Includes:
Singleton
Defined in:
lib/rio/factory.rb

Overview

:nodoc: all

Constant Summary collapse

STATE2FILE = 
{
  'Path::Reset' => 'rio/path/reset',
  'Path::Empty' => 'rio/path',
  'Path::Str' => 'rio/path',
  'Path::NonExisting' => 'rio/path',

  'File::Existing' => 'rio/file',
  'File::NonExisting' => 'rio/file',

  'Dir::Existing' => 'rio/dir',
  'Dir::Open' => 'rio/dir',
  'Dir::Close' => 'rio/dir',
  'Dir::Stream' => 'rio/dir',
  'Dir::NonExisting' => 'rio/dir',

  'Stream::Close' => 'rio/stream/open',
  'Stream::Reset' => 'rio/stream',
  'Stream::Open' => 'rio/stream/open',
  'Stream::Input' => 'rio/stream',
  'Stream::Output' => 'rio/stream',
  'Stream::InOut' => 'rio/stream',

  'Stream::Duplex::Open' => 'rio/stream/duplex',
  'Stream::Duplex::Input' => 'rio/stream/duplex',
  'Stream::Duplex::Output' => 'rio/stream/duplex',
  'Stream::Duplex::InOut' => 'rio/stream/duplex',
  'Stream::Duplex::Close' => 'rio/stream/duplex',
  'Stream::Duplex::Reset' => 'rio/stream/duplex',

  'Path::Stream::Open' => 'rio/scheme/path',

  'StrIO::Stream::Open' => 'rio/scheme/strio',

  'Null::Stream::Open' => 'rio/scheme/null',

  'CmdPipe::Stream::Reset' => 'rio/scheme/cmdpipe',

  'HTTP::Stream::Input' => 'rio/scheme/http',
  'HTTP::Stream::Open' => 'rio/scheme/http',

  'Temp::Reset' => 'rio/scheme/temp',
  'Temp::Stream::Open' => 'rio/scheme/temp',

  'Ext::YAML::Doc::Existing' => 'rio/ext/yaml/doc',
  'Ext::YAML::Doc::Open' => 'rio/ext/yaml/doc',
  'Ext::YAML::Doc::Stream' => 'rio/ext/yaml/doc',
  'Ext::YAML::Doc::Close' => 'rio/ext/yaml/doc',


}

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Factory

Returns a new instance of Factory.



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# File 'lib/rio/factory.rb', line 34

def initialize()
  @ss_module = {}
  @reset_class = {}
  @state_class = {}
  @ss_class = {}
end

Instance Method Details

#clone_state(state) ⇒ Object 



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# File 'lib/rio/factory.rb', line 202

def clone_state(state)
  create_handle(state.target.clone)
end

#create_handle(new_state) ⇒ Object 



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# File 'lib/rio/factory.rb', line 205

def create_handle(new_state)
  hndl = Handle.new(new_state)
  new_state.try_state = try_state_proc(new_state,hndl)
  hndl
end

#create_state(*args) ⇒ Object

factory creates a state from args



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# File 'lib/rio/factory.rb', line 198

def create_state(*args)
  riorl = RIO::RRL::Builder.build(*args)
  create_handle(state2class(reset_state(riorl)).new(rl:riorl))
end

#reset_state(rl) ⇒ Object 



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# File 'lib/rio/factory.rb', line 158

def reset_state(rl)
  mod = subscheme_module(rl.scheme)
  mod.const_get(:RESET_STATE) unless mod.nil?
end

#riorl_class(sch) ⇒ Object 



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# File 'lib/rio/factory.rb', line 151

def riorl_class(sch)
  ssm = subscheme_module(sch)
  cls = ssm.const_get(:RRL)

  cls
end

#state2class(state_name) ⇒ Object 



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# File 'lib/rio/factory.rb', line 163

def state2class(state_name)
  return @state_class[state_name] if @state_class.has_key?(state_name)
  if STATE2FILE.has_key?(state_name)
    require STATE2FILE[state_name]
    return @state_class[state_name] = RIO.module_eval(state_name)
  else
    raise ArgumentError,"Unknown State Name (#{state_name})" 
  end
end

#subscheme_module(sch) ⇒ Object 



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# File 'lib/rio/factory.rb', line 41

def subscheme_module(sch)
  #p "subscheme_module(#{sch})"
  @ss_module[sch] ||= case sch
                      when 'file','path'
                        require 'rio/rrl/path'
                        Path
                      when 'zipfile'
                        require 'rio/ext/zipfile/rl'
                        ZipFile::RootDir
                      when 'stdio','stdin','stdout'
                        require 'rio/scheme/stdio'
                        StdIO
                      when 'stderr'
                        require 'rio/scheme/stderr'
                        StdErr
                      when 'null'
                        require 'rio/scheme/null'
                        Null
                      when 'tempfile'
                        require 'rio/scheme/temp'
                        Temp::File
                      when 'temp'
                        require 'rio/scheme/temp'
                        Temp
                      when 'tempdir'
                        require 'rio/scheme/temp'
                        Temp::Dir
                      when 'strio','stringio','string'
                        require 'rio/scheme/strio'
                        StrIO
                      when 'cmdpipe'
                        require 'rio/scheme/cmdpipe'
                        CmdPipe
                      when 'aryio'
                        require 'rio/scheme/aryio'
                        AryIO
                      when 'http','https'
                        require 'rio/scheme/http'
                        HTTP
                      when 'ftp'
                        require 'rio/scheme/ftp'
                        FTP
                      when 'tcp'
                        require 'rio/scheme/tcp'
                        TCP
                      when 'sysio'
                        require 'rio/scheme/sysio'
                        SysIO
                      when 'fd'
                        require 'rio/scheme/fd'
                        FD
                      when 'cmdio'
                        require 'rio/scheme/cmdio'
                        CmdIO
                      else
                        require 'rio/rrl/path'
                        Path
                      end
end

#try_state_proc(current_state, rio_handle) ⇒ Object 



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# File 'lib/rio/factory.rb', line 177

def try_state_proc(current_state,rio_handle)
  proc { |new_state_name|
    _change_state(state2class(new_state_name),current_state,rio_handle)
  }
end

#try_state_proc1(current_state, rio_handle) ⇒ Object 



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# File 'lib/rio/factory.rb', line 172

def try_state_proc1(current_state,rio_handle)
  proc { |new_state_name|
    _change_state(state2class(new_state_name,rio_handle),current_state,rio_handle)
  }
end