Class: WurflLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/wurfl_store/wurfl/wurfl_load.rb

Overview

Modified to use nokogiri. GREATLY increased speed. $Id: wurflloader.rb,v 1.1 2003/11/23 12:26:05 zevblut Exp $ Authors: Zev Blut ([email protected]) Copyright © 2003, Ubiquitous Business Technology (ubit.com) All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the following
  disclaimer in the documentation and/or other materials provided
  with the distribution.

* Neither the name of the WURFL nor the names of its
  contributors may be used to endorse or promote products derived
  from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ WurflLoader

Returns a new instance of WurflLoader.



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# File 'lib/wurfl_store/wurfl/wurfl_load.rb', line 42

def initialize 
  @handsets = Hash::new
  @fallbacks = Hash::new
end

Instance Method Details

#load_wurfl(wurflfile) ⇒ Object 



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# File 'lib/wurfl_store/wurfl/wurfl_load.rb', line 47

def load_wurfl(wurflfile)
  file = File.new(wurflfile)
  doc = Nokogiri::XML::Document.parse file

  # read counter
  rcount = 0

  # iterate over all of the devices in the file
  doc.xpath("wurfl/devices/device").each do |element| 

    rcount += 1
    hands = nil # the reference to the current handset
    if element.attributes["id"].to_s == "generic"
      # setup the generic Handset 
      element.attributes["user_agent"] = "generic"
      if @handsets.key?("generic") then
        hands = @handsets["generic"]
        puts "Updating the generic handset at count #{rcount}" if @verbose	
      else
        # the generic handset has not been created.  Make it
        hands = WurflHandset::new "generic","generic"
        @handsets["generic"] = hands
        @fallbacks["generic"] = Array::new
        puts "Made the generic handset at count #{rcount}" if @verbose	
      end

    else
      # Setup an actual handset

      # check if handset already exists.
      wurflid = element.attributes["id"].to_s	
      if @handsets.key?(wurflid)
        # Must have been created by someone who named it as a fallback earlier.
        hands = @handsets[wurflid]
      else
        hands = WurflHandset::new "",""
      end
      hands.wurfl_id = wurflid
      hands.user_agent = element.attributes["user_agent"].to_s
      hands.user_agent = 'generic' if hands.user_agent.empty?

      # get the fallback and copy it's values into this handset's hashtable
      fallb = element.attributes["fall_back"].to_s

      # for tracking of who has fallbacks
      if !@fallbacks.key?(fallb)
        @fallbacks[fallb] = Array::new   
      end
      @fallbacks[fallb]<< hands.user_agent

      # Now set the handset to the proper fallback reference
      if !@handsets.key?(fallb)
        # We have a fallback that does not exist yet, create the reference.
        @handsets[fallb] = WurflHandset::new "",""
      end
      hands.fallback = @handsets[fallb]
    end

    # now copy this handset's specific capabilities into it's hashtable
    element.xpath("./*/capability").each do |el2|
      hands[el2.attributes["name"].to_s] = el2.attributes["value"].to_s
    end
    @handsets[hands.wurfl_id] = hands

    # Do some error checking
    if hands.wurfl_id.nil? 
      puts "a handset with a nil id at #{rcount}" 
    elsif hands.user_agent.nil? 
      puts "a handset with a nil agent at #{rcount}"
    end           
  end
  return @handsets, @fallbacks
end