/**
* Executes each action in a given branch, starting at $start.
*
* @param array $flowPath directions to the current position in the flow tree
* @param array $flowItems the items in this branch
* @param array &$params an associative array of params, usually including 'model'=>$model,
* @param integer $start the position in the branch to start at, defaults to 0
*/
public function executeBranch(&$flowItems, &$params, $triggerLogId = null)
{
$results = array();
for ($i = 0; $i < count($flowItems); $i++) {
$item =& $flowItems[$i];
if (!isset($item['type']) || !class_exists($item['type'])) {
continue;
}
$node = X2FlowItem::create($item);
if ($item['type'] === 'X2FlowSwitch') {
$validateRetArr = $node->validate($params, $this->id);
if ($validateRetArr[0]) {
$checkRetArr = $node->check($params);
if ($checkRetArr[0] && isset($item['trueBranch'])) {
$results[] = array($item['type'], true, $this->executeBranch($item['trueBranch'], $params, $triggerLogId));
} elseif (isset($item['falseBranch'])) {
$results[] = array($item['type'], false, $this->executeBranch($item['falseBranch'], $params, $triggerLogId));
}
}
} elseif ($item['type'] === 'X2FlowSplitter') {
$validateRetArr = $node->validate($params, $this->id);
if ($validateRetArr[0]) {
// right to left pre-order traversal
$branchVal = true;
if (isset($item[X2FlowSplitter::getRightChildName()])) {
$results[] = array($item['type'], true, $this->executeBranch($item[X2FlowSplitter::getRightChildName()], $params, $triggerLogId));
}
if (isset($item[X2FlowSplitter::getLeftChildName()])) {
$results[] = array($item['type'], false, $this->executeBranch($item[X2FlowSplitter::getLeftChildName()], $params, $triggerLogId));
}
}
} else {
$flowAction = X2FlowAction::create($item);
if ($item['type'] === 'X2FlowWait') {
$node->flowId = $this->id;
$results[] = $this->validateAndExecute($item, $node, $params, $triggerLogId);
break;
} else {
$results[] = $this->validateAndExecute($item, $node, $params, $triggerLogId);
}
}
}
return $results;
}
/**
* Generalized mass-instantiation method.
*
* Loads and instantiates all X2Flow items of a given type (i.e. actions,
* triggers).
*
* @param type $type
* @param type $excludeClasses
* @return type
*/
public static function getInstances($type, $excludeClasses = array())
{
if (!isset(self::$_instances)) {
self::$_instances = array();
}
if (!isset(self::$_instances[$type])) {
$excludeFiles = array();
foreach ($excludeClasses as $class) {
$excludedFiles[] = "{$class}.php";
}
$excludedFiles[] = '.';
$excludedFiles[] = '..';
self::$_instances[$type] = array();
foreach (scandir(Yii::getPathOfAlias('application.components.x2flow.' . $type)) as $file) {
if (!preg_match('/\\.php$/', $file) || in_array($file, $excludedFiles)) {
continue;
}
$class = self::create(array('type' => substr($file, 0, -4)));
if ($class !== null) {
self::$_instances[$type][] = $class;
}
}
}
return self::$_instances[$type];
}
/**
* Executes each action in a given branch, starting at $start.
*
* @param array $flowPath directions to the current position in the flow tree
* @param array $flowItems the items in this branch
* @param array &$params an associative array of params, usually including 'model'=>$model,
* @param integer $start the position in the branch to start at, defaults to 0
*/
public function executeBranch($flowPath, &$flowItems, &$params, $start = 0, $triggerLogId = null)
{
$results = array();
for ($i = $start; $i < count($flowItems); $i++) {
$item =& $flowItems[$i];
if (!isset($item['type']) || !class_exists($item['type'])) {
continue;
}
if ($item['type'] === 'X2FlowSwitch') {
$switch = X2FlowItem::create($item);
$validateRetArr = $switch->validate($params, $this->id);
if ($validateRetArr[0]) {
// flowPath only contains switch decisions and the index on the current branch
array_pop($flowPath);
// now that we're at another switch, we can throw out the previous branch index
// eg: $flowPath = array(true,false,3) means go to true at the first fork,
// go to false at the second fork, then go to item 3
$checkRetArr = $switch->check($params);
if ($checkRetArr[0] && isset($item['trueBranch'])) {
$flowPath[] = true;
$flowPath[] = 0;
// they're now on
$results[] = array($item['type'], true, $this->executeBranch($flowPath, $item['trueBranch'], $params, 0, $triggerLogId));
} elseif (isset($item['falseBranch'])) {
$flowPath[] = false;
$flowPath[] = 0;
$results[] = array($item['type'], false, $this->executeBranch($flowPath, $item['falseBranch'], $params, 0, $triggerLogId));
}
}
} else {
$flowAction = X2FlowAction::create($item);
if ($item['type'] === 'X2FlowWait') {
$flowAction->flowPath = $flowPath;
$flowAction->flowId = $this->id;
$results[] = $this->validateAndExecute($item, $flowAction, $params, $triggerLogId);
break;
} else {
$flowPath[count($flowPath) - 1]++;
// increment the index in the current branch
$results[] = $this->validateAndExecute($item, $flowAction, $params, $triggerLogId);
}
}
}
return $results;
}
/**
* Executes each action in a given branch, starting at $start.
*
* @param array $flowPath directions to the current position in the flow tree
* @param array $flowItems the items in this branch
* @param array &$params an associative array of params, usually including 'model'=>$model,
* @param integer $start the position in the branch to start at, defaults to 0
*/
public function executeBranch(&$flowItems, &$params, $triggerLogId = null)
{
$results = array();
for ($i = 0; $i < count($flowItems); $i++) {
$item =& $flowItems[$i];
if (!isset($item['type']) || !class_exists($item['type'])) {
continue;
}
if ($item['type'] === 'X2FlowSwitch') {
$switch = X2FlowItem::create($item);
$validateRetArr = $switch->validate($params, $this->id);
if ($validateRetArr[0]) {
$checkRetArr = $switch->check($params);
if ($checkRetArr[0] && isset($item['trueBranch'])) {
$results[] = array($item['type'], true, $this->executeBranch($item['trueBranch'], $params, $triggerLogId));
} elseif (isset($item['falseBranch'])) {
$results[] = array($item['type'], false, $this->executeBranch($item['falseBranch'], $params, $triggerLogId));
}
}
} else {
$flowAction = X2FlowAction::create($item);
if ($item['type'] === 'X2FlowWait') {
$flowAction->flowId = $this->id;
$results[] = $this->validateAndExecute($item, $flowAction, $params, $triggerLogId);
break;
} else {
$results[] = $this->validateAndExecute($item, $flowAction, $params, $triggerLogId);
}
}
}
return $results;
}
