Class CompositeBuilder. More...

Collaboration diagram for ilAssLacCompositeBuilder:

Public Member Functions
	__construct ()
	Construct requirements. More...

	create ($nodes)

Protected Attributes
	$operators = array('<=','<','=','>=','>','<>','&','\|')

Private Member Functions
	getExpression (array $node, $index)
	Manufacure an expression from the delivered node and the index. More...

Detailed Description

Class CompositeBuilder.

Date: 27.03.13 Time: 12:18

Author: Thomas Joußen tjous.nosp@m.sen@.nosp@m.datab.nosp@m.ay.d.nosp@m.e

Definition at line 10 of file ilAssLacCompositeBuilder.php.

Constructor & Destructor Documentation

◆ __construct()

ilAssLacCompositeBuilder::__construct ( )

Construct requirements.

Definition at line 24 of file ilAssLacCompositeBuilder.php.

    {
        include_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacOperationManufacturer.php';
        include_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacExpressionManufacturer.php';
    }

Member Function Documentation

◆ create()

ilAssLacCompositeBuilder::create ( $nodes )

Parameters

array $nodes

Returns: array

Definition at line 35 of file ilAssLacCompositeBuilder.php.

    {
        if ($nodes['type'] == 'group') {
            foreach ($nodes['nodes'] as $key => $child) {
                $nodes['nodes'][$key] = $this->create($child);
            }
 
            foreach ($this->operators as $next_operator) {
                do {
                    $index = -1;
                    for ($i = 0; $i < count($nodes['nodes']); $i++) {
                        if (!is_object($nodes['nodes'][$i]) && $nodes['nodes'][$i]['type'] == 'operator' && $nodes['nodes'][$i]['value'] == $next_operator) {
                            $index = $i;
                            break;
                        }
                    }
                    if ($index >= 0) {
                        $operation_manufacture = ilAssLacOperationManufacturer::_getInstance();
                        $operator = $operation_manufacture->manufacture($nodes['nodes'][$index]['value']);
 
                        $operator->setNegated($nodes["negated"]);
                        $operator->addNode($this->getExpression($nodes, $index - 1));
                        $operator->addNode($this->getExpression($nodes, $index + 1));
 
                        $new_nodes = array_slice($nodes['nodes'], 0, $index - 1);
                        $new_nodes[] = $operator;
                        $nodes['nodes'] = array_merge($new_nodes, array_slice($nodes['nodes'], $index + 2));
                    }
                } while ($index >= 0);
            }
            return $nodes['nodes'][0];
        }
        return $nodes;
    }

References $i, $index, ilAssLacOperationManufacturer\_getInstance(), create(), and getExpression().

Referenced by create().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ getExpression()

ilAssLacCompositeBuilder::getExpression	(	array	$node,
			$index
	)

private

Manufacure an expression from the delivered node and the index.

If an expression already exist in the node for
for the delivered index, this function will return the existing expression

Parameters

array	$node
int	$index

Returns: ilAssLacCompositeInterface

Definition at line 79 of file ilAssLacCompositeBuilder.php.

    {
        $manufacturer = ilAssLacExpressionManufacturer::_getInstance();
 
        $expression = $node['nodes'][$index];
        if (!($expression instanceof ilAssLacAbstractComposite)) {
            $expression = $manufacturer->manufacture($node['nodes'][$index]['value']);
        }
        return $expression;
    }