Class: XMLRPC::XMLParser::AbstractTreeParser

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses: NQXMLTreeParser, XMLTreeParser
Inherits:	Object
Defined in:	lib/xmlrpc/parser.rb

Instance Method Summary

#parseMethodCall(str)
#parseMethodResponse(str)
#array(node) private
#assert(b) private
#base64(node) private
#boolean(node) private
#data(node) private
#dateTime(node) private
#double(node) private
#fault(node) private
#hasOnlyOneChild(node, name = nil) private

Returns, when successfully the only child-node.
#integer(node) private
#member(node) private
#methodCall(node) private
#methodName(node) private
#methodResponse(node) private
#name(node) private
#nodeMustBe(node, name) private
#param(node) private
#params(node, call = true) private
#removeWhitespacesAndComments(node) private

Removes all whitespaces but in the tags i4, i8, int, boolean.…
#string(node) private
#struct(node) private
#text(node) private

_nodeType is defined in the subclass.
#text_zero_one(node) private

The node node has empty string or string.
#v_nil(node) private
#value(node) private

Instance Method Details

#array(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 344


def array(node)
  nodeMustBe(node, "array")
  hasOnlyOneChild(node, "data")
  data(node.firstChild)
end

#assert(b) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 261


def assert(b)
  if not b then
    raise "assert-fail"
  end
end

#base64(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 324


def base64(node)
  nodeMustBe(node, "base64")
  #hasOnlyOneChild(node)

  Convert.base64(text_zero_one(node))
end

#boolean(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 290


def boolean(node)
  nodeMustBe(node, "boolean")
  hasOnlyOneChild(node)

  Convert.boolean(text(node.firstChild))
end

#data(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 350


def data(node)
  nodeMustBe(node, "data")

  node.childNodes.to_a.collect do |val|
    value(val)
  end
end

#dateTime(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 317


def dateTime(node)
  nodeMustBe(node, "dateTime.iso8601")
  hasOnlyOneChild(node)

  Convert.dateTime( text(node.firstChild) )
end

#double(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 308


def double(node)
  #TODO: check string for float because to_f returnsa
  #      0.0 when wrong string
  nodeMustBe(node, "double")
  hasOnlyOneChild(node)

  Convert.double(text(node.firstChild))
end

#fault(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 399


def fault(node)
  nodeMustBe(node, "fault")
  hasOnlyOneChild(node, "value")
  f = value(node.firstChild)
  Convert.fault(f)
end

#hasOnlyOneChild(node, name = nil) (private)

Returns, when successfully the only child-node

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 251


def hasOnlyOneChild(node, name=nil)
  if node.childNodes.to_a.size != 1
    raise "wrong xml-rpc (size)"
  end
  if name != nil then
    nodeMustBe(node.firstChild, name)
  end
end

#integer(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 281


def integer(node)
  #TODO: check string for float because to_i returnsa
  #      0 when wrong string
   nodeMustBe(node, %w(i4 i8 int))
  hasOnlyOneChild(node)

  Convert.int(text(node.firstChild))
end

#member(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 331


def member(node)
  nodeMustBe(node, "member")
  assert( node.childNodes.to_a.size == 2 )

  [ name(node[0]), value(node[1]) ]
end

#methodCall(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 469


def methodCall(node)
  nodeMustBe(node, "methodCall")
  assert( (1..2).include?( node.childNodes.to_a.size ) )
  name = methodName(node[0])

  if node.childNodes.to_a.size == 2 then
    pa = params(node[1])
  else # no parameters given
    pa = []
  end
  [name, pa]
end

#methodName(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 380


def methodName(node)
  nodeMustBe(node, "methodName")
  hasOnlyOneChild(node)
  text(node.firstChild)
end

#methodResponse(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 364


def methodResponse(node)
  nodeMustBe(node, "methodResponse")
  hasOnlyOneChild(node, %w(params fault))
  child = node.firstChild

  case child.nodeName
  when "params"
    [ true, params(child,false) ]
  when "fault"
    [ false, fault(child) ]
  else
    raise "unexpected error"
  end

end

#name(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 338


def name(node)
  nodeMustBe(node, "name")
  #hasOnlyOneChild(node)
  text_zero_one(node)
end

#nodeMustBe(node, name) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 233


def nodeMustBe(node, name)
  cmp = case name
  when Array
    name.include?(node.nodeName)
  when String
    name == node.nodeName
  else
    raise "error"
  end

  if not cmp then
    raise "wrong xml-rpc (name)"
  end

  node
end

#param(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 358


def param(node)
  nodeMustBe(node, "param")
  hasOnlyOneChild(node, "value")
  value(node.firstChild)
end

#params(node, call = true) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 386


def params(node, call=true)
  nodeMustBe(node, "params")

  if call
    node.childNodes.to_a.collect do |n|
      param(n)
    end
  else # response (only one param)
    hasOnlyOneChild(node)
    param(node.firstChild)
  end
end

#parseMethodCall(str)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 197


def parseMethodCall(str)
  methodCall_document(createCleanedTree(str))
end

#parseMethodResponse(str)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 193


def parseMethodResponse(str)
  methodResponse_document(createCleanedTree(str))
end

#removeWhitespacesAndComments(node) (private)

Removes all whitespaces but in the tags i4, i8, int, boolean.… and all comments

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 205


def removeWhitespacesAndComments(node)
  remove = []
  childs = node.childNodes.to_a
  childs.each do |nd|
    case _nodeType(nd)
    when :TEXT
      # TODO: add nil?
      unless %w(i4 i8 int boolean string double dateTime.iso8601 base64).include? node.nodeName

         if node.nodeName == "value"
           if not node.childNodes.to_a.detect {|n| _nodeType(n) == :ELEMENT}.nil?
             remove << nd if nd.nodeValue.strip == ""
           end
         else
           remove << nd if nd.nodeValue.strip == ""
         end
      end
    when :COMMENT
      remove << nd
    else
      removeWhitespacesAndComments(nd)
    end
  end

  remove.each { |i| node.removeChild(i) }
end

#string(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 303


def string(node)
  nodeMustBe(node, "string")
  text_zero_one(node)
end

#struct(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 417


def struct(node)
  nodeMustBe(node, "struct")

  hash = {}
  node.childNodes.to_a.each do |me|
    n, v = member(me)
    hash[n] = v
  end

  Convert.struct(hash)
end

#text(node) (private)

_nodeType is defined in the subclass

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 409


def text(node)
  assert( _nodeType(node) == :TEXT )
  assert( node.hasChildNodes == false )
  assert( node.nodeValue != nil )

  node.nodeValue.to_s
end

#text_zero_one(node) (private)

The node node has empty string or string

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 268


def text_zero_one(node)
  nodes = node.childNodes.to_a.size

  if nodes == 1
    text(node.firstChild)
  elsif nodes == 0
    ""
  else
    raise "wrong xml-rpc (size)"
  end
end

#v_nil(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 297


def v_nil(node)
  nodeMustBe(node, "nil")
  assert( node.childNodes.to_a.size == 0 )
  nil
end

#value(node) (private)

[ GitHub ]

# File 'lib/xmlrpc/parser.rb', line 430


def value(node)
  nodeMustBe(node, "value")
  nodes = node.childNodes.to_a.size
  if nodes == 0
    return ""
  elsif nodes > 1
    raise "wrong xml-rpc (size)"
  end

  child = node.firstChild

  case _nodeType(child)
  when :TEXT
    text_zero_one(node)
  when :ELEMENT
    case child.nodeName
    when "i4", "i8", "int"  then integer(child)
    when "boolean"          then boolean(child)
    when "string"           then string(child)
    when "double"           then double(child)
    when "dateTime.iso8601" then dateTime(child)
    when "base64"           then base64(child)
    when "struct"           then struct(child)
    when "array"            then array(child)
    when "nil"
      if Config::ENABLE_NIL_PARSER
        v_nil(child)
      else
        raise "wrong/unknown XML-RPC type 'nil'"
      end
    else
      raise "wrong/unknown XML-RPC type"
    end
  else
    raise "wrong type of node"
  end

end