Class: FxmlLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/jrubyfx-fxmlloader.rb

Constant Summary collapse

FX_NAMESPACE_VERSION = 
"1"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url = nil, ctrlr = nil, resourcs = nil, buildFactory = nil, charset = nil, loaders = nil) ⇒ FxmlLoader

Returns a new instance of FxmlLoader.



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# File 'lib/jrubyfx-fxmlloader.rb', line 141

def initialize(url=nil, ctrlr=nil, resourcs=nil, buildFactory=nil, charset=nil, loaders=nil)
  @location = url
  @builderFactory = buildFactory || JavaFXBuilderFactory.new
  @template = false
  if resourcs
    dputs "WHOA WHOAT!!!! resources"
    dp resourcs
  end
  if loaders
    dputs "WHOA WHOAT!!!! loaders"
    dp loaders
  end
  @namespace = FXCollections.observableHashMap()
  self.controller = ctrlr
  @packages = []
  @classes = {}
  @root = nil
  @charset = charset || Charset.forName(FXL::DEFAULT_CHARSET_NAME)
end

Instance Attribute Details

#builderFactory ⇒ Object

Returns the value of attribute builderFactory.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def builderFactory
  @builderFactory
end

#controller ⇒ Object

Returns the value of attribute controller.



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# File 'lib/jrubyfx-fxmlloader.rb', line 139

def controller
  @controller
end

#controllerFactory ⇒ Object

Returns the value of attribute controllerFactory.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def controllerFactory
  @controllerFactory
end

#current ⇒ Object

Returns the value of attribute current.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def current
  @current
end

#location ⇒ Object

Returns the value of attribute location.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def location
  @location
end

#namespace ⇒ Object

Returns the value of attribute namespace.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def namespace
  @namespace
end

#root ⇒ Object

Returns the value of attribute root.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def root
  @root
end

#staticLoad ⇒ Object

Returns the value of attribute staticLoad.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def staticLoad
  @staticLoad
end

#template ⇒ Object

Returns the value of attribute template.



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# File 'lib/jrubyfx-fxmlloader.rb', line 138

def template
  @template
end

Instance Method Details

#clearImports ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 237

def clearImports
  @packages.clear
  @classes.clear
end

#compareJFXVersions(rtVer, nsVer) ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 603

def compareJFXVersions(rtVer, nsVer)

  retVal = 0;

if (rtVer == nil || "" == (rtVer)			|| nsVer == nil || "" == (nsVer))
	return retVal;
  end

if (rtVer == (nsVer))
	return retVal;
  end

# version string can contain '-'
  dashIndex = rtVer.index("-");
  dashIndex = -1 unless dashIndex
if (dashIndex > 0)

	rtVer = rtVer[0, dashIndex]
  end

# or "_"
  underIndex = rtVer.index("_");
  underIndex = -1 unless underIndex
if (underIndex > 0)

	rtVer = rtVer[0, underIndex]
  end

# do not try to compare if the string is not valid version format
if (!rtVer.match(/^(\d+)(\.\d+)*$/)			|| !nsVer.match(/^(\d+)(\.\d+)*$/))
	return retVal;
  end

  nsVerTokenizer = StringTokenizer.new(nsVer, ".");
rtVerTokenizer = StringTokenizer.new(rtVer, ".");
nsDigit = 0
  rtDigit = 0;
rtVerEnd = false;

while (nsVerTokenizer.hasMoreTokens() && retVal == 0)
	nsDigit = nsVerTokenizer.nextToken().to_i
	if (rtVerTokenizer.hasMoreTokens())
		rtDigit = rtVerTokenizer.nextToken().to_i
		retVal = rtDigit - nsDigit;
	else
		rtVerEnd = true;
		break;
    end
  end

if (rtVerTokenizer.hasMoreTokens() && retVal == 0)
	rtDigit = rtVerTokenizer.nextToken().to_i
	if (rtDigit > 0)
		retVal = 1;
    end
  end

if (rtVerEnd)
	if (nsDigit > 0)
		retVal = -1;
	else
		while (nsVerTokenizer.hasMoreTokens())
			nsDigit = nsVerTokenizer.nextToken().to_i
			if (nsDigit > 0)
				retVal = -1;
				break;
        end
      end
    end
  end

return retVal;
end

#constantize(camel_cased_word) ⇒ Object

steal handy methods from activesupport Tries to find a constant with the name specified in the argument string.

‘Module’.constantize # => Module ‘Test::Unit’.constantize # => Test::Unit

The name is assumed to be the one of a top-level constant, no matter whether it starts with “::” or not. No lexical context is taken into account:

C = ‘outside’ module M C = ‘inside’ C # => ‘inside’ ‘C’.constantize # => ‘outside’, same as ::C end

NameError is raised when the name is not in CamelCase or the constant is unknown.



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# File 'lib/jrubyfx-fxmlloader.rb', line 466

def constantize(camel_cased_word)
  names = camel_cased_word.split('.')
  names.shift if names.empty? || names.first.empty?

  names.inject(Object) do |constant, name|
    if constant == Object
      constant.const_get(name)
    else
      candidate = constant.const_get(name)
      next candidate if constant.const_defined?(name, false)
      next candidate unless Object.const_defined?(name)

      # Go down the ancestors to check it it's owned
      # directly before we reach Object or the end of ancestors.
      constant = constant.ancestors.inject do |const, ancestor|
        break const if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end

      # owner is in Object, so raise
      constant.const_get(name, false)
    end
  end
end

#createElement ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 300

def createElement()
prefix = @xmlStreamReader.getPrefix();
localName = @xmlStreamReader.getLocalName();

if !prefix
	i = localName.rindex('.')

	if localName[(i ? i : -1) + 1] == localName[(i ? i : -1) + 1].downcase
		name = localName[((i ? i : -1) + 1)..-1]

		if (i == nil)
			# This is an instance property
			if @loadListener
				@loadListener.beginPropertyElement(name, nil)
        end

			@current = PropertyElement.new(@current, @xmlStreamReader, @loadListener, self, name, nil)
		else
			# This is a static property
			sourceType = getType(localName[0, i]);
			if sourceType
				if @loadListener
					@loadListener.beginPropertyElement(name, sourceType);
          end

				@current = PropertyElement.new(@current, @xmlStreamReader, @loadListener, self,name, sourceType)
			elsif (@staticLoad)
				# The source type was not recognized
				if @loadListener
					@loadListener.beginUnknownStaticPropertyElement(localName);
          end

				@current = FXL::UnknownStaticPropertyElement.new
			else
				raise LoadException.new(localName + " is not a valid property.");
        end
      end
	else
		if (@current == nil && @root)
			raise LoadException.new("Root value already specified.");
      end

		type = getType(localName);
      prefixz = @xmlStreamReader.getLocation().getLineNumber().to_s + ": "
      numz = 1
      pppn = @current
      while pppn
        numz+=1
        pppn = pppn.parent
      end
      prefixz = (" " * numz) + prefixz
      dputs "#{prefixz}Creating new stuff"
      dprint prefixz
      dp localName
      dprint prefixz
      dp type

		if type
			if @loadListener
				@loadListener.beginInstanceDeclarationElement(type);
        end
			@current = InstanceDeclarationElement.new(@current, @xmlStreamReader, @loadListener, self, type)
		elsif (@staticLoad)
			# The type was not recognized
			if @loadListener
				@loadListener.beginUnknownTypeElement(localName);
        end

			@current = UnknownTypeElement.new(@current, @xmlStreamReader, @loadListener, self)
		else
        raise LoadException.new(localName + " is not a valid type.");
      end
    end
elsif prefix == FXL::FX_NAMESPACE_PREFIX
	if localName == FXL::INCLUDE_TAG
		if @loadListener
			@loadListener.beginIncludeElement()
      end
		@current = IncludeElement.new(@current, @xmlStreamReader, @loadListener, self)
	elsif localName == FXL::REFERENCE_TAG
		if @loadListener
			@loadListener.beginReferenceElement
      end

		@current = ReferenceElement.new(@current, @xmlStreamReader, @loadListener, self)
	elsif localName == FXL::COPY_TAG
		if @loadListener
        @loadListener.beginCopyElement();
      end

		@current = CopyElement.new(@current, @xmlStreamReader, @loadListener, self)
	elsif localName == FXL::ROOT_TAG
		if @loadListener
        @loadListener.beginRootElement();
      end

		@current = RootElement.new(@current, @xmlStreamReader, @loadListener, self)
	elsif localName == FXL::SCRIPT_TAG
		if @loadListener
        @loadListener.beginScriptElement();
      end

		@current = ScriptElement.new(@current, @xmlStreamReader, @loadListener, self)
	elsif localName == FXL::DEFINE_TAG
		if @loadListener
        @loadListener.beginDefineElement();
      end

		@current = DefineElement.new(@current, @xmlStreamReader, @loadListener, self)
	else
		raise LoadException.new(prefix + ":" + localName + " is not a valid element.");
    end
else
	raise LoadException.new("Unexpected namespace prefix: " + prefix + ".");
  end
end

#getScriptEngineManager ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 589

def getScriptEngineManager()
unless @scriptEngineManager
	@scriptEngineManager =  Java.javax.script.ScriptEngineManager.new
	@scriptEngineManager.setBindings(SimpleBindings.new(@namespace))
  end

return @scriptEngineManager;
end

#getType(name) ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 523

def getType(name)
	type = nil

	if name[0] == name[0].downcase
		# This is a fully-qualified class name
		begin
			type = loadType(name, false);
		rescue ClassNotFoundException => exception
			# No-op
		end
	else
		# This is an unqualified class name
		type = @classes[name];

		unless type
			# The class has not been loaded yet; look it up
			@packages.each do |packageName|
				begin
					type = loadTypeForPackage(packageName, name);
				rescue ClassNotFoundException => exception
					# No-op
				end
         break if type
			end
       unless type
         # check for ruby
         # TODO: this should require an import or something perhaps? need to think more about this?
         begin
					type = constantize(name)
				rescue 
					# No-op
				end
       end
       @classes[name] = type if type
		end
	end

	return type;
end

#importClass(name) ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 439

def importClass(name)
	begin
		loadType(name, true);
	rescue ClassNotFoundException => exception
		raise LoadException.new(exception);
	end
end

#importPackage(name) ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 435

def importPackage(name)
	@packages << name
end

#load ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 170

def load()
  dp "This is the namespace", @namespace
  # TODO: actually open it properly
  inputStream = @location.open_stream
  if @template
    @root = nil
  else
    clearImports
  end

  @namespace[FXL::LOCATION_KEY] = @location
  @namespace[FXL::RESOURCES_KEY] = @resources

  @script_engine = nil

  begin
    xmlInputFactory = XMLInputFactory.newFactory
    xmlInputFactory.setProperty("javax.xml.stream.isCoalescing", true)

	# Some stream readers incorrectly report an empty string as the prefix
	# for the default namespace; correct this as needed
	inputStreamReader = InputStreamReader.new(inputStream, @charset);
	@xmlStreamReader = SRDelegateClass.new(xmlInputFactory.createXMLStreamReader(inputStreamReader))
  rescue XMLStreamException => e
    raise LoadException.new(e)
  end

  # Parse the XML stream
begin
	while @xmlStreamReader.hasNext()
      dputs "......"
      event = @xmlStreamReader.next();
      dputs "#{event} aout happened, dude"
		case event
      when XMLStreamConstants::PROCESSING_INSTRUCTION
        dputs "processing instr"
        processProcessingInstruction
      when XMLStreamConstants::COMMENT
        dputs "processing comment"
        processComment
      when XMLStreamConstants::START_ELEMENT
        dputs "processing start"
        processStartElement
      when XMLStreamConstants::END_ELEMENT
        dputs "processing end"
        processEndElement
      when XMLStreamConstants::CHARACTERS
        dputs "processing chars"
        processCharacters
      end
    end
rescue XMLStreamException => exception
	raise Exception.new(exception)
  end
  dputs "Saving stuff!!!!s"
  if @controller
    # TODO: initialize should be called here
    # Inject controller fields
    @controller.instance_variable_set("@" + FXL::LOCATION_KEY, @location)
    @controller.instance_variable_set("@" + FXL::RESOURCES_KEY, @resources)
  end


  @xmlStreamReader = nil
  return @root
end

#loadType(name, cache) ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 563

def loadType(name, cache)
	i = name.index('.');
	n = name.length;
	while (i &&
         i < n &&
         name[i + 1] == name[i + 1].downcase)
		i = name.index('.', i + 1);
	end

	if (i == nil || i == n)
		raise ClassNotFoundException.new();
	end

	packageName = name[0, i];
	className = name[(i + 1)..-1];

	type = loadTypeForPackage(packageName, className);

	if (cache)
		@classes[className]  = type
	end

	return type;
end

#loadTypeForPackage(packageName, className = nil) ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 598

def loadTypeForPackage(packageName, className=nil)
packageName = (packageName + "." + className.gsub('.', '$')) if className
  #TODO: fix for ruby stuff
return Java.java.lang.Class::forName(packageName, true, FXL::default_class_loader);
end

#processCharacters ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 428

def processCharacters()
	# Process the characters
	if (!@xmlStreamReader.isWhiteSpace())
		@current.processCharacters();
	end
end

#processComment ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 283

def processComment
  @loadListener.readComment(@xmlStreamReader.text) if @loadListener
end

#processEndElement ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 417

def processEndElement()
   dputs "ending!!!!!!!!"
	@current.processEndElement();
	if @loadListener
		@loadListener.endElement(@current.value);
	end

	# Move up the stack
	@current = @current.parent;
end

#processImport ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 269

def processImport
target = @xmlStreamReader.getPIData().strip

if @loadListener
	@loadListener.readImportProcessingInstruction(target)
  end

if target.end_with?(".*")
	importPackage(target[0,target.length - 2])
else
	importClass(target)
  end
end

#processLanguage ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 251

def processLanguage
if @scriptEngine
	raise LoadException.new("Page language already set.")
  end

language = @xmlStreamReader.getPIData()

if @loadListener
	@loadListener.readLanguageProcessingInstruction(language)
  end

unless staticLoad
	scriptEngineManager = getScriptEngineManager()
	scriptEngine = scriptEngineManager.getEngineByName(language)
	scriptEngine.setBindings(scriptEngineManager.getBindings(), ScriptContext.ENGINE_SCOPE)
  end
end

#processProcessingInstruction ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 242

def processProcessingInstruction
piTarget = @xmlStreamReader.getPITarget().strip
if piTarget == FXL::LANGUAGE_PROCESSING_INSTRUCTION
	processLanguage
elsif piTarget == FXL::IMPORT_PROCESSING_INSTRUCTION
	processImport
  end
end

#processStartElement ⇒ Object 



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# File 'lib/jrubyfx-fxmlloader.rb', line 287

def processStartElement()
# Create the element
createElement();

# Process the start tag
@current.processStartElement();

# Set the root value
unless @root
	@root = @current.value;
  end
end

#safe_constantize(camel_cased_word) ⇒ Object

Tries to find a constant with the name specified in the argument string.

‘Module’.safe_constantize # => Module ‘Test::Unit’.safe_constantize # => Test::Unit

The name is assumed to be the one of a top-level constant, no matter whether it starts with “::” or not. No lexical context is taken into account:

C = ‘outside’ module M C = ‘inside’ C # => ‘inside’ ‘C’.safe_constantize # => ‘outside’, same as ::C end

nil is returned when the name is not in CamelCase or the constant (or part of it) is unknown.

‘blargle’.safe_constantize # => nil ‘UnknownModule’.safe_constantize # => nil ‘UnknownModule::Foo::Bar’.safe_constantize # => nil



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# File 'lib/jrubyfx-fxmlloader.rb', line 514

def safe_constantize(camel_cased_word)
  constantize(camel_cased_word)
rescue NameError => e
  raise unless e.message =~ /(uninitialized constant|wrong constant name) #{const_regexp(camel_cased_word)}$/ ||
    e.name.to_s == camel_cased_word.to_s
rescue ArgumentError => e
  raise unless e.message =~ /not missing constant #{const_regexp(camel_cased_word)}\!$/
end