Class: AgentXmpp::Xmpp::Element

Inherits:
REXML::Element show all
Defined in:
lib/agent_xmpp/xmpp/element.rb

Overview

Constant Summary collapse

@@name_xmlns_classes =

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{}

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from REXML::Element

#delete_elements, #first_element, #first_element_text, #import, #replace_element_text

Constructor Details

#initialize(*arg) ⇒ Element

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# File 'lib/agent_xmpp/xmpp/element.rb', line 90

def initialize(*arg)
  if arg.empty?
    name, xmlns = self.class::name_xmlns_for_class(self.class)
    super(name)
    add_namespace(xmlns)
  else
    super
  end
end

Class Method Details

.class_for_name_xmlns(name, xmlns) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 35

def class_for_name_xmlns(name, xmlns)
  if @@name_xmlns_classes.has_key? [name, xmlns]
    @@name_xmlns_classes[[name, xmlns]]
  elsif @@name_xmlns_classes.has_key? [name, nil]
    @@name_xmlns_classes[[name, nil]]
  else
    REXML::Element
  end
end

.import(element) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 46

def import(element)
  klass = class_for_name_xmlns(element.name, element.namespace)
  if klass != self and klass.ancestors.include?(self)
    klass.new.import(element)
  else
    self.new.import(element)
  end
end

.name_xmlns(name, xmlns = nil) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 18

def name_xmlns(name, xmlns=nil)
  @@name_xmlns_classes[[name, xmlns]] = self
end

.name_xmlns_for_class(klass) ⇒ Object

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Raises:



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# File 'lib/agent_xmpp/xmpp/element.rb', line 23

def name_xmlns_for_class(klass)
  klass.ancestors.each do |klass1|
    @@name_xmlns_classes.each do |name_xmlns,k|
      if klass1 == k
        return name_xmlns
      end
    end
  end
  raise NoNameXmlnsRegistered.new(klass)
end

.xmpp_attribute(*args) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 56

def xmpp_attribute(*args)
  sym = (args.pop[:sym] if args.last.kind_of?(Hash)).nil? ? '' : '.to_sym'
  args.each do |a|
    class_eval <<-DEF
      def #{a.to_s}
        attr = attributes['#{a.to_s}']
        attr.nil? ? nil : attr#{sym}
      end
      def #{a.to_s}=(v)
        attributes['#{a.to_s}'] = v.to_s
      end
    DEF
  end
end

.xmpp_child(*args) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 72

def xmpp_child(*args)
  args.each do |a|
    class_eval <<-DEF
      def #{a.to_s}
        first_element('#{a.to_s}')
      end
      def #{a.to_s}=(v)
        delete_elements(v.name)
        add(v)
      end
    DEF
  end
end

Instance Method Details

#<<(child) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 147

def <<(child)
  add(child); self
end

#clone ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 124

def clone
  cloned = self.class.new
  cloned.add_attributes self.attributes.clone
  cloned.context = @context
  cloned
end

#parent=(new_parent) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 113

def parent=(new_parent)
  if parent and parent.namespace('') == namespace('') and attributes['xmlns'].nil?
    add_namespace parent.namespace('')
  end
  super
  if new_parent and new_parent.namespace('') == namespace('')
    delete_namespace
  end
end

#set_xml_lang(l) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 142

def set_xml_lang(l)
  self.xml_lang = l; self
end

#typed_add(element) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 101

def typed_add(element)
  if element.kind_of? REXML::Element
    element_ns = (element.namespace.to_s == '') ? namespace : element.namespace
    klass = Element::class_for_name_xmlns(element.name, element_ns)
    if klass != element.class
      element = klass.import(element)
    end
  end
  super(element)
end

#xml_lang ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 132

def xml_lang
  attributes['xml:lang']
end

#xml_lang=(l) ⇒ Object

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# File 'lib/agent_xmpp/xmpp/element.rb', line 137

def xml_lang=(l)
  attributes['xml:lang'] = l
end