ilSaxController Class Reference

Controller class for sax element handlers. More...

Collaboration diagram for ilSaxController:

Public Member Functions
	__construct ()
	Constructor.
	setHandlers ($a_xml_parser)
	Set handlers.
	setDefaultElementHandler (ilSaxSubsetParser $a_default_parser)
	Set default element handler.
	setElementHandler (ilSaxSubsetParser $a_parser, $a_element)
	Set element handler by element name.
	handlerBeginTag ($a_xml_parser, $a_name, $a_attribs)
	Set default element handler.
	handlerEndTag ($a_xml_parser, $a_name)
	handler for end of element
	handlerCharacterData ($a_xml_parser, $a_data)
	handler for character data

Protected Attributes
	$default_handler = null
	$element_handlers = array()
	$handlers_in_use = array()

Detailed Description

Controller class for sax element handlers.

Could be used to split the xml handling in different responsible classes. Use the methods addElementHandler, addDefaultElementHandler

Author

Stefan Meyer smeye.nosp@m.r.il.nosp@m.ias@g.nosp@m.mx.d.nosp@m.e

Version

$Id$

Definition at line 35 of file class.ilSaxController.php.

Constructor & Destructor Documentation

ilSaxController::__construct

(

)

Constructor.

public

Parameters

Definition at line 48 of file class.ilSaxController.php.

        {
        }

Member Function Documentation

ilSaxController::handlerBeginTag	(		$a_xml_parser,
			$a_name,
			$a_attribs
	)

Set default element handler.

public

Parameters

string	xml element that triggers the handler call
object	object that parses the xmlsubset
string	method name default handlerBeginTag

public

Parameters

resource	$a_xml_parser	xml parser
string	$a_name	element name
array	$a_attribs	element attributes array

Definition at line 111 of file class.ilSaxController.php.

References $default_handler.

        {
                if(isset($this->element_handlers[$a_name]) or $this->handler_in_use)
                {
                        if(!$this->handler_in_use)
                        {
                                $this->handler_in_use = $this->element_handlers[$a_name];
                        }
                        // Forward to handler
                        $this->current_handler = $this->handler_in_use;
                        return $this->current_handler->handlerBeginTag($a_xml_parser,$a_name,$a_attribs);
                }
                // Call default handler
                $this->handler_in_use = false;
                $this->current_handler = $this->default_handler;
                return $this->default_handler->handlerBeginTag($a_xml_parser,$a_name,$a_attribs);
        }

ilSaxController::handlerCharacterData	(		$a_xml_parser,
			$a_data
	)

handler for character data

Parameters

resource	$a_xml_parser	xml parser
string	$a_data	character data

Definition at line 159 of file class.ilSaxController.php.

        {
                return $this->current_handler->handlerCharacterData(a_xml_parser,$a_data);
        }

ilSaxController::handlerEndTag	(		$a_xml_parser,
			$a_name
	)

handler for end of element

Parameters

resource	$a_xml_parser	xml parser
string	$a_name	element name

Definition at line 135 of file class.ilSaxController.php.

References $default_handler, and elseif().

        {
                if(isset($this->element_handlers[$a_name]))
                {
                        $this->handler_in_use = false;
                        $this->current_handler = $this->element_handlers[$a_name];
                        return $this->element_handlers[$a_name]->handlerEndTag($a_xml_parser,$a_name);
                }
                elseif($this->handler_in_use)
                {
                        $this->current_handler = $this->handler_in_use;
                        return $this->current_handler->handlerEndTag($a_xml_parser,$a_name);
                }
                $this->handler_in_use = false;
                $this->current_handler = $this->default_handler;
                return $this->default_handler->handlerEndTag($a_xml_parser,$a_name);
        }

Here is the call graph for this function:

ilSaxController::setDefaultElementHandler

(

ilSaxSubsetParser

$a_default_parser

)

Set default element handler.

public

Parameters

object

object that parses the xmlsubset must implement interface ilSaxSubsetParser

Definition at line 74 of file class.ilSaxController.php.

        {
                $this->default_handler = $a_default_parser;
        }

ilSaxController::setElementHandler	(	ilSaxSubsetParser	$a_parser,
			$a_element
	)

Set element handler by element name.

Parameters

string	element name that triggers the handler
object	object that parses the xmlsubset must implement interface ilSaxSubsetParser public

Definition at line 87 of file class.ilSaxController.php.

        {
                $this->element_handlers[$a_element] = $a_parser;
                $this->handlers_in_use[$a_element] = false;
        }

ilSaxController::setHandlers

(

$a_xml_parser

)

Set handlers.

public

Parameters

resource

xml_parser instance

Definition at line 59 of file class.ilSaxController.php.

        {
                xml_set_object($a_xml_parser,$this);
                xml_set_element_handler($a_xml_parser,'handlerBeginTag','handlerEndTag');
                xml_set_character_data_handler($a_xml_parser,'handlerCharacterData');
                return;
        }

Field Documentation

ilSaxController::$default_handler = null

protected

Definition at line 37 of file class.ilSaxController.php.

Referenced by handlerBeginTag(), and handlerEndTag().

ilSaxController::$element_handlers = array()

protected

Definition at line 38 of file class.ilSaxController.php.

ilSaxController::$handlers_in_use = array()

protected

Definition at line 39 of file class.ilSaxController.php.

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The documentation for this class was generated from the following file:

• Services/Utilities/classes/class.ilSaxController.php