AdvisePointcut::getConditionString()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 4
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 0
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<?php
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/**
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 * \AppserverIo\Doppelgaenger\Entities\Pointcut\AdvisePointcut
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 *
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 * NOTICE OF LICENSE
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 *
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 * This source file is subject to the Open Software License (OSL 3.0)
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 * that is available through the world-wide-web at this URL:
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 * http://opensource.org/licenses/osl-3.0.php
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 *
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 * PHP version 5
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 *
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 * @author    Bernhard Wick <[email protected]>
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 * @copyright 2015 TechDivision GmbH - <[email protected]>
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 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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 * @link      https://github.com/appserver-io/doppelgaenger
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 * @link      http://www.appserver.io/
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 */
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namespace AppserverIo\Doppelgaenger\Entities\Pointcuts;
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use AppserverIo\Doppelgaenger\Dictionaries\ReservedKeywords;
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/**
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 * Pointcut for direct weaving of advice logic.
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 * Can only be used with a qualified method signature e.g. \AppserverIo\Doppelgaenger\Logger->log(__METHOD__)
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 *
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 * @author    Bernhard Wick <[email protected]>
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 * @copyright 2015 TechDivision GmbH - <[email protected]>
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 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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 * @link      https://github.com/appserver-io/doppelgaenger
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 * @link      http://www.appserver.io/
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 *
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 * @Target({"METHOD","PROPERTY"})
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 */
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class AdvisePointcut extends AbstractSignaturePointcut
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{
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    /**
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     * Whether or not the pointcut is considered static, meaning is has to be weaved and evaluated during runtime
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     * anyway
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     *
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     * @var boolean IS_STATIC
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     */
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    const IS_STATIC = true;
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    /**
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     * The type of this pointcut
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     *
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     * @var string TYPE
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     */
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    const TYPE = 'advise';
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    /**
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     * Default constructor
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     *
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     * @param string  $expression String representing the expression defining this pointcut
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     * @param boolean $isNegated  If any match made against this pointcut's expression has to be negated in its result
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     */
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    public function __construct($expression, $isNegated = false)
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    {
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        // clean any trailing brackets and proceed to parent constructor
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        parent::__construct(rtrim($expression, '()'), $isNegated);
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    }
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    /**
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     * Returns a string representing a boolean condition which can be used to determine if
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     * the pointcut has to be executed
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     *
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     * @return string
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     */
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    public function getConditionString()
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    {
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        return 'true';
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    }
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    /**
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     * Returns a string representing the actual execution of the pointcut logic
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     *
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     * @param string|null $assignTo Should the result be assigned and stored for later use? If so, to what?
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     *
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     * @return string
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     */
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    public function getExecutionString($assignTo = null)
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    {
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        $assignmentPrefix = '';
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        if (!is_null($assignTo)) {
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            $assignmentPrefix = $assignTo . ' = ';
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        }
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        // we have to test whether or not we need an instance of the used class first.
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        // if the call is not static then we do
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        $string = '';
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        $expression = $this->getExpression();
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        $invocationCode = '(' . ReservedKeywords::METHOD_INVOCATION_OBJECT . ')';
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        if ($this->callType === self::CALL_TYPE_OBJECT) {
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            // don't forget to create an instance first
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            $variable = '$' . lcfirst(str_replace('\\', '', $this->structure));
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            $string .= $variable . ' = new ' . str_replace('\\\\', '\\', $this->structure) . '();
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            ';
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            $string .= $assignmentPrefix . $variable . $this->callType . $this->function . $invocationCode . ';
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            ';
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        } else {
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            $string .= $assignmentPrefix . $expression . $invocationCode . ';
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            ';
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        }
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        return $string;
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    }
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    /**
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     * Whether or not the pointcut matches a given candidate.
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     * Will always return true, as we do not support regex here right now
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     *
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     * @param mixed $candidate Candidate to match against the pointcuts match pattern (getMatchPattern())
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     *
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     * @return boolean
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     */
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    public function matches($candidate)
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    {
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        return true;
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    }
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}
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