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<?php
/**
* PHP_UML (PHP/MOF program elements classes)
*
* PHP version 5
*
* @category PHP
* @package PHP_UML
* @subpackage Metamodel
* @author Baptiste Autin <ohlesbeauxjours@yahoo.fr>
* @license http://www.gnu.org/licenses/lgpl.html LGPL License 3
* @version SVN: $Revision: 175 $
* @link http://pear.php.net/package/PHP_UML
* @link http://www.omg.org/mof/
* @since $Date: 2011-09-15 17:07:58 +0200 (jeu., 15 sept. 2011) $
*
*/
/**
* Helper class to deal with Metamodel elements.
*
* @category PHP
* @package PHP_UML
* @subpackage Metamodel
* @author Baptiste Autin <ohlesbeauxjours@yahoo.fr>
* @license http://www.gnu.org/licenses/lgpl.html LGPL License 3
*/
class PHP_UML_Metamodel_Helper
{
const META_INTERFACE = 'PHP_UML_Metamodel_Interface';
const META_CLASS = 'PHP_UML_Metamodel_Class';
const META_DATATYPE = 'PHP_UML_Metamodel_Datatype';
const META_OPERATION = 'PHP_UML_Metamodel_Operation';
const META_PROPERTY = 'PHP_UML_Metamodel_Property';
const PHP_PROFILE_NAME = 'php';
const PHP_STEREOTYPE_DOCBLOCK = 'docblock';
/**
* Deletes all empty packages
*
* @param PHP_UML_Metamodel_Package &$ns Top package
*/
static public function deleteEmptyPackages(PHP_UML_Metamodel_Package &$ns)
{
if (!is_null($ns->nestedPackage)) {
foreach ($ns->nestedPackage as $key => &$pkg) {
if (self::isEmpty($pkg)) {
unset($ns->nestedPackage[$key]);
} else {
if (self::deleteEmptyPackages($pkg)) {
unset($ns->nestedPackage[$key]);
}
}
}
if (self::isEmpty($ns)) {
return true;
}
}
return false;
}
/**
* Checks if a package is empty
*
* @param PHP_UML_Metamodel_Package $p Top package
*/
static private function isEmpty(PHP_UML_Metamodel_Package $p)
{
return empty($p->nestedPackage) && empty($p->ownedType) && empty($p->ownedOperation) && empty($p->ownedAttribute);
}
/**
* Searches in a given package for a typed element (likely, a class)
*
* @param PHP_UML_Metamodel_Package $ns A package element
* @param string $value A name
*
* @return mixed Either FALSE if not found, or the element
*/
public static function searchTypeIntoPackage(PHP_UML_Metamodel_Package $ns, $value)
{
foreach ($ns->ownedType as $key => &$o) {
if (strcasecmp($o->name, $value)==0) {
return $o;
}
}
return false;
}
/**
* Searches if an operation already exists in a given pkg
*
* @param PHP_UML_Metamodel_Package $ns A package element
* @param string $value A name
*
* @return mixed Either FALSE if not found, or the element
*/
static public function searchOperationIntoPackage(PHP_UML_Metamodel_Package $ns, $value)
{
foreach ($ns->ownedOperation as $key => &$o) {
if (strcasecmp($o->name, $value)==0) {
return $o;
}
}
return false;
}
/**
* Searches if an attribute already exists in a given pkg
*
* @param PHP_UML_Metamodel_Package $ns A package element
* @param string $value A name
*
* @return mixed Either FALSE if not found, or the element
*/
public static function searchAttributeIntoPackage(PHP_UML_Metamodel_Package $ns, $value)
{
foreach ($ns->ownedAttribute as $key => &$o) {
if (strcasecmp($o->name, $value)==0) {
return $o;
}
}
return false;
}
/**
* Retrieves a particular tag in a given stereotype
*
* @param PHP_UML_Metamodel_Stereotype $s The stereotype
* @param string $tagName The tag name (eg "description")
*
* @return PHP_UML_Metamodel_Tag
*/
public static function getStereotypeTag(PHP_UML_Metamodel_Stereotype $s, $tagName)
{
if (!empty($s)) {
foreach ($s->ownedAttribute as $tag) {
if ($tag->name == $tagName)
return $tag;
}
}
return null;
}
/**
* Searches recursively in a given package for an element, knowing its ID
*
* @param PHP_UML_Metamodel_Package $np A package element (context)
* @param string $value An ID
*
* @return mixed Either FALSE if not found, or the position in the stack
*/
public static function findTypeById(PHP_UML_Metamodel_Package $np, $value)
{
if ($np->id == $value)
return $np;
foreach ($np->ownedType as $item) {
if ($item->id == $value)
return $item;
}
foreach ($np->ownedAttribute as $item) {
if ($item->id == $value)
return $item;
}
foreach ($np->ownedOperation as $item) {
if ($item->id == $value)
return $item;
}
foreach ($np->nestedPackage as $item) {
$ret = self::findTypeById($item, $value);
if (!($ret === false))
return $ret;
}
return false;
}
/**
* Searches recursively in a given package for a package, knowing its name
* Works with position numbers, not variable references.
*
* @param PHP_UML_Metamodel_Package $np A package element (context)
* @param string $value A package name (to find)
*
* @return mixed Either FALSE if not found, or the position in the stack
*/
public static function findSubpackageByName(PHP_UML_Metamodel_Package $np, $value)
{
foreach ($np->nestedPackage as $pkg) {
if (strcasecmp($pkg->name, $value)==0) {
return $pkg;
}
}
return false;
}
/**
* Splits a package path into its first/last element, and the rest
* Allows for the two different versions of package delimiter
*
* @param string $path A path to split
* @param bool $modeFirst If true, splits into 1st and the rest
* If false, splits into last and the rest
* @param string $alt Alternate separator (eg, /, or ::)
*
* @return array Results array
*/
static public function getPackagePathParts($path, $modeFirst = true, $alt=PHP_UML_Input_PHP_Parser::T_NS_SEPARATOR2)
{
$first = '';
$last = '';
if ($modeFirst) {
$pos1 = strpos($path, PHP_UML_Input_PHP_Parser::T_NS_SEPARATOR);
$pos2 = strpos($path, $alt);
if ($pos1!==false && ($pos1<$pos2 || $pos2===false)) {
$pos = $pos1;
$len = strlen(PHP_UML_Input_PHP_Parser::T_NS_SEPARATOR);
} else {
$pos = $pos2;
$len = strlen($alt);
}
} else {
$pos1 = strrpos($path, PHP_UML_Input_PHP_Parser::T_NS_SEPARATOR);
$pos2 = strrpos($path, $alt);
if ($pos1!==false && ($pos1>$pos2 || $pos2===false)) {
$pos = $pos1;
$len = strlen(PHP_UML_Input_PHP_Parser::T_NS_SEPARATOR);
} else {
$pos = $pos2;
$len = strlen($alt);
}
}
if ($pos===false)
$first = $path;
else {
$first = substr($path, 0, $pos);
$last = substr($path, $pos+$len);
}
return array($pos, $first, $last);
}
}
?>
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