Class: Session::IDL

Inherits:
AbstractSession show all
Defined in:
lib/session.rb

Overview

IDL => interactive data language - see www.rsinc.com/

Defined Under Namespace

Classes: LicenseManagerError

Constant Summary collapse

DEFAULT_PROG = 
'idl'
MAX_TRIES = 
32

Instance Attribute Summary

Attributes inherited from AbstractSession

#debug, #errproc, #history, #opts, #outproc, #prog, #stderr, #stdin, #stdout, #threads, #track_history, #use_open3, #use_spawn

Instance Method Summary collapse

Methods inherited from AbstractSession

#__fork, #__popen3, #close!, default_prog, default_prog=, #execute, #getopt, #hasopt, init, #ready?

Constructor Details

#initialize(*args) ⇒ IDL

Returns a new instance of IDL.



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# File 'lib/session.rb', line 565

def initialize(*args)
  tries = 0 
  ret = nil
  begin
    ret = super
  rescue LicenseManagerError => e
    tries += 1 
    if tries < MAX_TRIES
      sleep 1
      retry
    else
      raise LicenseManagerError, "<#{ MAX_TRIES }> attempts <#{ e.message }>"
    end
  end
  ret
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/session.rb', line 581

def clear
  stdin.puts "retall"
  stdin.puts "printf, -2, '__clear__'"
  stdin.puts "printf, -1, '__clear__'"
  stdin.flush
  while((line = stderr.gets) and line !~ %r/__clear__/o)
    raise LicenseManagerError, line if line =~ %r/license\s*manager/io
  end
  while((line = stdout.gets) and line !~ %r/__clear__/o)
    raise LicenseManagerError, line if line =~ %r/license\s*manager/io
  end
  self
end

#path ⇒ Object 



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# File 'lib/session.rb', line 605

def path 
  stdout, stderr = execute "print, !path"
  stdout.strip.split %r/:/o
end

#path=(arg) ⇒ Object 



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# File 'lib/session.rb', line 609

def path= arg 
  case arg
    when Array
      arg = arg.join ':'
    else
      arg = arg.to_s.strip
  end
  stdout, stderr = execute "!path='#{ arg }'"

  self.path
end

#send_command(cmd) ⇒ Object 



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# File 'lib/session.rb', line 594

def send_command cmd
  stdin.printf "printf, -2, '%s'\n", cmd.begin_err
  stdin.printf "printf, -1, '%s'\n", cmd.begin_out

  stdin.printf "%s\n", cmd.cmd
  stdin.printf "retall\n"

  stdin.printf "printf, -2, '%s'\n", cmd.end_err
  stdin.printf "printf, -1, '%s'\n", cmd.end_out
  stdin.flush
end