Class: Ruboto::Util::XMLElement

Inherits:
Hash
  • Object
show all
Includes:
CodeFormatting, Verify
Defined in:
lib/ruboto/util/xml_element.rb

Overview

XMLElement:

Extends Hash to simulate a REXML::Element (but much faster) and provides
information in the necessary format to generate Java code.

Instance Method Summary collapse

Methods included from Verify

#verify_activity, #verify_api, #verify_manifest, #verify_min_sdk, #verify_package, #verify_sdk_versions, #verify_strings, #verify_target_sdk

Methods included from CodeFormatting

#if_else, #method_call, #try_catch

Instance Method Details

#add_element(name, attributes) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 29

def add_element(name, attributes)
  new_element = XMLElement.new
  new_element["name"] = name
  new_element["values"] = attributes

  self[name] = [] unless self[name]
  self[name] << new_element

  new_element
end

#all_methods(method_base = "all", method_include = "", method_exclude = "", implements = "") ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 64

def all_methods(method_base="all", method_include="", method_exclude="", implements="")
  # get all the methogs
  all_methods = get_elements("method")

  # establish the base set of methods
  working_methods = case method_base
  when "all" then
    all_methods
  when "none" then
    []
  when "abstract" then
    all_methods.select{|i| i.attribute("abstract") == "true"}
  when "on" then
    all_methods.select{|i| i.attribute("name").match(/^on[A-Z]/)}
  end

  # make sure to include requested methods
  include_methods = method_include.split(",") if method_include.is_a?(String)
  all_methods.each{|i| working_methods << i if include_methods.include?(i.attribute("name"))}

  # make sure to exclude rejected methods
  exclude_methods = method_exclude.split(",") if method_exclude.is_a?(String)
  working_methods = working_methods.select{|i| not exclude_methods.include?(i.attribute("name"))}

  # remove methods marked final
  working_methods = working_methods.select{|i| (not i.attribute("final")) or i.attribute("final") == "false"}

  # get additional methods from parent
  if name =="class" and attribute("extends")
    parent = root.find_class(attribute("extends"))
    parent_methods = parent.all_methods(method_base, method_include, method_exclude)
    working_signatures = working_methods.map(&:method_signature)
    working_methods += parent_methods.select{|i| not working_signatures.include?(i.method_signature)}
  end

  # get additional methods from interfaces
  if name =="class" and implements != ""
    implements.split(",").each do |i|
      interface = root.find_interface(i)
      abort("Unkown interface: #{i}") unless interface
      working_signatures = working_methods.map(&:method_signature)
      working_methods += interface.all_methods.select{|j| not working_signatures.include?(j.method_signature)}
    end
  end

  working_methods
end

#attribute(name) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 25

def attribute(name)
  self["values"][name]
end

#constant_string ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 120

def constant_string
  "CB_" + attribute("name").gsub(/[A-Z]/) {|i| "_#{i}"}.upcase.gsub(/^ON_/, "")
end

#constructor_definition(class_name) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 192

def constructor_definition(class_name)
  method_call("", class_name, parameters, [super_string]).indent.join("\n")
end

#default_return ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 138

def default_return
  return nil unless attribute("return")
  case attribute("return")
  when "boolean" then "return false;"
  when "int"     then "return 0;"
  when "void"    then nil
  else                "return null;"
  end
end

#find_class(package_and_class) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 56

def find_class(package_and_class)
  find_class_or_interface(package_and_class, "class")
end

#find_class_or_interface(klass, a_type) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 44

def find_class_or_interface(klass, a_type)
  abort "ERROR: Can't parse package from #{klass}" unless klass.match(/([a-z.]+)\.([A-Z][A-Za-z.]+)/)

  package = self["package"].find{|i| i.attribute("name") == $1}
  abort "ERROR: Can't find package #{$1}" unless package
  if a_type == "either"
    package["class"].find{|i| i.attribute("name") == $2} or package["interface"].find{|i| i.attribute("name") == $2}
  else
    package[a_type].find{|i| i.attribute("name") == $2}
  end
end

#find_interface(package_and_interface) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 60

def find_interface(package_and_interface)
  find_class_or_interface(package_and_interface, "interface")
end

#get_elements(name) ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 40

def get_elements(name)
  self[name] or []
end

#method_definition ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 185

def method_definition
  method_call((attribute("return") ? attribute("return") : "void"), attribute("name"), parameters,
  if_else("callbackProcs[#{constant_string}] != null",
  [super_string] + try_catch(ruby_call, ["re.printStackTrace();", default_return]),
  [super_return])).indent.join("\n")
end

#method_signature ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 116

def method_signature
  "#{attribute("name")}(#{parameters.map{|i| i[1]}.join(',')})"
end

#name ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 21

def name
  self["name"]
end

#parameters ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 112

def parameters
  get_elements("parameter").map {|p| [p.attribute("name"), p.attribute("type").gsub("&lt;", "<").gsub("&gt;", ">")]}
end

#root ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 17

def root
  Ruboto::API.api
end

#ruby_call ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 154

def ruby_call
  rv = []

  params = parameters
  args = ""
  if params.size > 3
    args = ", args"
    rv << "IRubyObject[] args = {" + params.map{|i| "JavaUtil.convertJavaToRuby(getRuby(), #{i[0]})"}.join(", ") + "};"
  elsif params.size > 0
    args = ", " + params.map{|i| "JavaUtil.convertJavaToRuby(getRuby(), #{i[0]})"}.join(", ")
  end

  return_cast = ""
  if attribute("return") and (attribute("return").include?(".") or attribute("return") == "int[]")
    return_cast = "return (#{attribute("return")})"
  elsif attribute("return") and attribute("return") == "int"
    return_cast = "return (Integer)"
  elsif attribute("return") and attribute("return") != "void"
    return_cast = "return (#{attribute("return").capitalize})"
  end
  return_cast = return_cast.gsub("&lt;", "<").gsub("&gt;", ">")

  convert_return = ""
  if attribute("return") and attribute("return") != "void"
    convert_return = ".toJava(#{attribute("return")}.class)"
  end

  rv << "#{return_cast}RuntimeHelpers.invoke(getRuby().getCurrentContext(), callbackProcs[#{constant_string}], \"call\" #{args})#{convert_return};"
  rv
end

#super_return ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 148

def super_return
  rv = super_string
  return rv unless attribute("return")
  rv ? "return #{rv}" : default_return
end

#super_string ⇒ Object 



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# File 'lib/ruboto/util/xml_element.rb', line 124

def super_string
  if attribute("api_added") and
    attribute("api_added").to_i > verify_min_sdk.to_i and
    attribute("api_added").to_i <= verify_target_sdk.to_i
    nil
  elsif attribute("abstract") == "true"
    nil
  elsif name == "method"
    "super.#{attribute("name")}(#{parameters.map{|i| i[0]}.join(", ")});"
  elsif name == "constructor"
    "super(#{parameters.map{|i| i[0]}.join(", ")});"
  end
end