root/lib/cyborghood/order.rb @ d9ef7de9
| e7315259 | Marc Dequènes (Duck) | #--
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# CyborgHood, a distributed system management software.
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# Copyright (c) 2009-2010 Marc Dequènes (Duck) <Duck@DuckCorp.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#++
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| afd9ef46 | Marc Dequènes (Duck) | require 'shellwords'
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| cb0d68fd | Marc Dequènes (Duck) | module CyborgHood
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class Command
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attr_reader :cmdline, :cmdsplit, :parsing_errors
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def initialize(cmdline, cmdsplit, parsing_errors = [])
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@cmdline = cmdline
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@cmdsplit = cmdsplit
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@parsing_errors = parsing_errors
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end
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def valid?
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@parsing_errors.empty?
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end
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end
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| 3d7bbe55 | Marc Dequènes (Duck) | class CommandParameter < String
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attr_reader :content_type
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| cb0d68fd | Marc Dequènes (Duck) | ||
| 8347a623 | Marc Dequènes (Duck) | def initialize(content, content_type = nil)
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| 3d7bbe55 | Marc Dequènes (Duck) | super(content)
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| 8347a623 | Marc Dequènes (Duck) | @content_type = content_type
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| cb0d68fd | Marc Dequènes (Duck) | end
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| 3d7bbe55 | Marc Dequènes (Duck) | ||
def content
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to_s
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end
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| cb0d68fd | Marc Dequènes (Duck) | end
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| 3d7bbe55 | Marc Dequènes (Duck) | class CommandParameterRef
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| cb0d68fd | Marc Dequènes (Duck) | attr_reader :reference
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def initialize(reference)
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@reference = reference
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end
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end
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class Order
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| ed09e1e5 | Marc Dequènes (Duck) | include I18nTranslation
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| cb0d68fd | Marc Dequènes (Duck) | attr_reader :error, :user, :commands, :shared_parameters
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def initialize(params = {})
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@error = params[:error]
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@user = params[:user]
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@commands = params[:commands]
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@shared_parameters = params[:shared_parameters]
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end
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| 3d7bbe55 | Marc Dequènes (Duck) | def valid?
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@error.nil? and @user and not @commands.empty?
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end
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end
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class OrderParser
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include I18nTranslation
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def initialize(user)
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@user = user
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@commands = []
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@shared_parameters = {}
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@used_refs = []
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end
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def parse(command_lines)
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| cb0d68fd | Marc Dequènes (Duck) | logger.debug "Parsing Order"
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command_lines.each do |line|
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line.strip!
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# skip empty lines and comments
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next if line == "" or line[0, 1] == "#"
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errors = []
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| 2da8345d | Marc Dequènes (Duck) | begin
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raw_cmd_parts = line.shellsplit
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rescue
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| eb6e0359 | Marc Dequènes (Duck) | errors << _("Syntax error in command.")
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| 2da8345d | Marc Dequènes (Duck) | raw_cmd_parts = []
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end
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cmd_parts = raw_cmd_parts.collect do |word|
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| 3d7bbe55 | Marc Dequènes (Duck) | yield word, errors
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| cb0d68fd | Marc Dequènes (Duck) | end
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| 3d7bbe55 | Marc Dequènes (Duck) | @commands << Command.new(line, cmd_parts, errors)
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| cb0d68fd | Marc Dequènes (Duck) | end
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# remove references to unused parameters
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| 3d7bbe55 | Marc Dequènes (Duck) | @shared_parameters.delete_if{|ref, param| not @used_refs.include?(ref) }
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| cb0d68fd | Marc Dequènes (Duck) | ||
logger.debug "Order is OK"
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| 3d7bbe55 | Marc Dequènes (Duck) | Order.new(:user => @user, :commands => @commands, :shared_parameters => @shared_parameters)
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| cb0d68fd | Marc Dequènes (Duck) | end
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| 3d7bbe55 | Marc Dequènes (Duck) | def deref_param(param, old_ref = nil)
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if param.is_a? CommandParameterRef
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return deref_param(@shared_parameters[param.reference], param.reference)
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elsif param.is_a? CommandParameter
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return old_ref, param
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elsif param.is_a? String or param.is_a? Fixnum
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return deref_param(@shared_parameters[param], param)
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| cb0d68fd | Marc Dequènes (Duck) | else
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nil
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end
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end
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end
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end
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