Improve performance of Icinga 2 API commands processed in bulk

application/controllers/HostController.php

@@ -86,7 +86,7 @@ public function indexAction()
     public function sourceAction()
     {
         $this->assertPermission('icingadb/object/show-source');
-        $apiResult = (new CommandTransport())->send((new GetObjectCommand())->setObject($this->host));
+        $apiResult = (new CommandTransport())->send((new GetObjectCommand())->setObjects([$this->host]));
 
         if ($this->host->state->is_overdue) {
             $this->controls->addAttributes(['class' => 'overdue']);

application/controllers/ServiceController.php

@@ -91,7 +91,7 @@ public function indexAction()
     public function sourceAction()
     {
         $this->assertPermission('icingadb/object/show-source');
-        $apiResult = (new CommandTransport())->send((new GetObjectCommand())->setObject($this->service));
+        $apiResult = (new CommandTransport())->send((new GetObjectCommand())->setObjects([$this->service]));
 
         if ($this->service->state->is_overdue) {
             $this->controls->addAttributes(['class' => 'overdue']);

application/forms/Command/CommandForm.php

@@ -4,18 +4,23 @@
 
 namespace Icinga\Module\Icingadb\Forms\Command;
 
+use ArrayIterator;
 use Exception;
+use Generator;
 use Icinga\Application\Logger;
 use Icinga\Module\Icingadb\Command\IcingaCommand;
 use Icinga\Module\Icingadb\Command\Transport\CommandTransport;
+use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Web\Notification;
 use Icinga\Web\Session;
 use ipl\Html\Form;
 use ipl\Orm\Model;
 use ipl\Web\Common\CsrfCounterMeasure;
+use Traversable;
 
 abstract class CommandForm extends Form
 {
+    use Auth;
     use CsrfCounterMeasure;
 
     protected $defaultAttributes = ['class' => 'icinga-form icinga-controls'];
@@ -71,13 +76,13 @@ abstract protected function assembleElements();
     abstract protected function assembleSubmitButton();
 
     /**
-     * Get the command to issue for the given object
+     * Get the commands to issue for the given objects
      *
-     * @param Model $object
+     * @param Traversable<Model> $objects
      *
-     * @return IcingaCommand|IcingaCommand[]|null NULL in case no command should be issued for the object
+     * @return Traversable<IcingaCommand>
      */
-    abstract protected function getCommand(Model $object);
+    abstract protected function getCommands(Traversable $objects): Traversable;
 
     protected function assemble()
     {
@@ -89,23 +94,14 @@ protected function assemble()
     protected function onSuccess()
     {
         $errors = [];
-        foreach ($this->getObjects() as $object) {
-            $commands = $this->getCommand($object);
-            if ($commands === null) {
-                continue;
-            }
-
-            if ($commands instanceof IcingaCommand) {
-                $commands = [$commands];
-            }
-
-            foreach ($commands as $command) {
-                try {
-                    $this->sendCommand($command);
-                } catch (Exception $e) {
-                    Logger::error($e->getMessage());
-                    $errors[] = $e->getMessage();
-                }
+        $objects = $this->getObjects();
+
+        foreach ($this->getCommands(is_array($objects) ? new ArrayIterator($objects) : $objects) as $command) {
+            try {
+                $this->sendCommand($command);
+            } catch (Exception $e) {
+                Logger::error($e->getMessage());
+                $errors[] = $e->getMessage();
             }
         }
 
@@ -133,4 +129,21 @@ protected function sendCommand(IcingaCommand $command)
     {
         (new CommandTransport())->send($command);
     }
+
+    /**
+     * Yield the $objects the currently logged in user has the permission $permission for
+     *
+     * @param string      $permission
+     * @param Traversable $objects
+     *
+     * @return Generator
+     */
+    protected function filterGrantedOn(string $permission, Traversable $objects): Generator
+    {
+        foreach ($objects as $object) {
+            if ($this->isGrantedOn($permission, $object)) {
+                yield $object;
+            }
+        }
+    }
 }

application/forms/Command/Instance/ToggleInstanceFeaturesForm.php

@@ -5,16 +5,13 @@
 namespace Icinga\Module\Icingadb\Forms\Command\Instance;
 
 use Icinga\Module\Icingadb\Command\Instance\ToggleInstanceFeatureCommand;
-use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Module\Icingadb\Forms\Command\CommandForm;
 use Icinga\Web\Notification;
-use ipl\Orm\Model;
 use ipl\Web\FormDecorator\IcingaFormDecorator;
+use Traversable;
 
 class ToggleInstanceFeaturesForm extends CommandForm
 {
-    use Auth;
-
     protected $features;
 
     protected $featureStatus;
@@ -136,7 +133,7 @@ protected function assembleSubmitButton()
     {
     }
 
-    protected function getCommand(Model $object): \Generator
+    protected function getCommands(Traversable $objects): Traversable
     {
         foreach ($this->features as $feature => $spec) {
             $featureState = $this->getElement($feature)->isChecked();

application/forms/Command/Object/AcknowledgeProblemForm.php

@@ -8,22 +8,19 @@
 use DateTime;
 use Icinga\Application\Config;
 use Icinga\Module\Icingadb\Command\Object\AcknowledgeProblemCommand;
-use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Module\Icingadb\Forms\Command\CommandForm;
 use Icinga\Module\Icingadb\Model\Host;
 use Icinga\Web\Notification;
 use ipl\Html\Attributes;
 use ipl\Html\HtmlElement;
 use ipl\Html\Text;
-use ipl\Orm\Model;
 use ipl\Validator\CallbackValidator;
 use ipl\Web\FormDecorator\IcingaFormDecorator;
 use ipl\Web\Widget\Icon;
+use Traversable;
 
 class AcknowledgeProblemForm extends CommandForm
 {
-    use Auth;
-
     public function __construct()
     {
         $this->on(self::ON_SUCCESS, function () {
@@ -187,28 +184,25 @@ protected function assembleSubmitButton()
         (new IcingaFormDecorator())->decorate($this->getElement('btn_submit'));
     }
 
-    /**
-     * @return ?AcknowledgeProblemCommand
-     */
-    protected function getCommand(Model $object)
+    protected function getCommands(Traversable $objects): Traversable
     {
-        if (! $this->isGrantedOn('icingadb/command/acknowledge-problem', $object)) {
-            return null;
-        }
+        $granted = $this->filterGrantedOn('icingadb/command/acknowledge-problem', $objects);
+
+        if ($granted->valid()) {
+            $command = new AcknowledgeProblemCommand();
+            $command->setObjects($granted);
+            $command->setComment($this->getValue('comment'));
+            $command->setAuthor($this->getAuth()->getUser()->getUsername());
+            $command->setNotify($this->getElement('notify')->isChecked());
+            $command->setSticky($this->getElement('sticky')->isChecked());
+            $command->setPersistent($this->getElement('persistent')->isChecked());
+
+            if (($expireTime = $this->getValue('expire_time')) !== null) {
+                /** @var DateTime $expireTime */
+                $command->setExpireTime($expireTime->getTimestamp());
+            }
 
-        $command = new AcknowledgeProblemCommand();
-        $command->setObject($object);
-        $command->setComment($this->getValue('comment'));
-        $command->setAuthor($this->getAuth()->getUser()->getUsername());
-        $command->setNotify($this->getElement('notify')->isChecked());
-        $command->setSticky($this->getElement('sticky')->isChecked());
-        $command->setPersistent($this->getElement('persistent')->isChecked());
-
-        if (($expireTime = $this->getValue('expire_time')) !== null) {
-            /** @var DateTime $expireTime */
-            $command->setExpireTime($expireTime->getTimestamp());
+            yield $command;
         }
-
-        return $command;
     }
 }

application/forms/Command/Object/AddCommentForm.php

@@ -8,22 +8,19 @@
 use DateTime;
 use Icinga\Application\Config;
 use Icinga\Module\Icingadb\Command\Object\AddCommentCommand;
-use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Module\Icingadb\Forms\Command\CommandForm;
 use Icinga\Module\Icingadb\Model\Host;
 use Icinga\Web\Notification;
 use ipl\Html\Attributes;
 use ipl\Html\HtmlElement;
 use ipl\Html\Text;
-use ipl\Orm\Model;
 use ipl\Validator\CallbackValidator;
 use ipl\Web\FormDecorator\IcingaFormDecorator;
 use ipl\Web\Widget\Icon;
+use Traversable;
 
 class AddCommentForm extends CommandForm
 {
-    use Auth;
-
     public function __construct()
     {
         $this->on(self::ON_SUCCESS, function () {
@@ -142,25 +139,22 @@ protected function assembleSubmitButton()
         (new IcingaFormDecorator())->decorate($this->getElement('btn_submit'));
     }
 
-    /**
-     * @return ?AddCommentCommand
-     */
-    protected function getCommand(Model $object)
+    protected function getCommands(Traversable $objects): Traversable
     {
-        if (! $this->isGrantedOn('icingadb/command/comment/add', $object)) {
-            return null;
-        }
+        $granted = $this->filterGrantedOn('icingadb/command/comment/add', $objects);
 
-        $command = new AddCommentCommand();
-        $command->setObject($object);
-        $command->setComment($this->getValue('comment'));
-        $command->setAuthor($this->getAuth()->getUser()->getUsername());
+        if ($granted->valid()) {
+            $command = new AddCommentCommand();
+            $command->setObjects($granted);
+            $command->setComment($this->getValue('comment'));
+            $command->setAuthor($this->getAuth()->getUser()->getUsername());
 
-        if (($expireTime = $this->getValue('expire_time'))) {
-            /** @var DateTime $expireTime */
-            $command->setExpireTime($expireTime->getTimestamp());
-        }
+            if (($expireTime = $this->getValue('expire_time'))) {
+                /** @var DateTime $expireTime */
+                $command->setExpireTime($expireTime->getTimestamp());
+            }
 
-        return $command;
+            yield $command;
+        }
     }
 }

application/forms/Command/Object/CheckNowForm.php

@@ -4,17 +4,15 @@
 
 namespace Icinga\Module\Icingadb\Forms\Command\Object;
 
+use Generator;
 use Icinga\Module\Icingadb\Command\Object\ScheduleCheckCommand;
-use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Module\Icingadb\Forms\Command\CommandForm;
 use Icinga\Web\Notification;
-use ipl\Orm\Model;
 use ipl\Web\Widget\Icon;
+use Traversable;
 
 class CheckNowForm extends CommandForm
 {
-    use Auth;
-
     protected $defaultAttributes = ['class' => 'inline'];
 
     public function __construct()
@@ -46,26 +44,29 @@ protected function assembleSubmitButton()
         );
     }
 
-    /**
-     * @return ?ScheduleCheckCommand
-     */
-    protected function getCommand(Model $object)
+    protected function getCommands(Traversable $objects): Traversable
     {
-        if (
-            ! $this->isGrantedOn('icingadb/command/schedule-check', $object)
-            && (
-                ! $object->active_checks_enabled
-                || ! $this->isGrantedOn('icingadb/command/schedule-check/active-only', $object)
-            )
-        ) {
-            return null;
-        }
+        $granted = (function () use ($objects): Generator {
+            foreach ($objects as $object) {
+                if (
+                    $this->isGrantedOn('icingadb/command/schedule-check', $object)
+                    || (
+                        $object->active_checks_enabled
+                        && $this->isGrantedOn('icingadb/command/schedule-check/active-only', $object)
+                    )
+                ) {
+                    yield $object;
+                }
+            }
+        })();
 
-        $command = new ScheduleCheckCommand();
-        $command->setObject($object);
-        $command->setCheckTime(time());
-        $command->setForced();
+        if ($granted->valid()) {
+            $command = new ScheduleCheckCommand();
+            $command->setObjects($granted);
+            $command->setCheckTime(time());
+            $command->setForced();
 
-        return $command;
+            yield $command;
+        }
     }
 }

application/forms/Command/Object/DeleteCommentForm.php

@@ -4,17 +4,16 @@
 
 namespace Icinga\Module\Icingadb\Forms\Command\Object;
 
+use Generator;
 use Icinga\Module\Icingadb\Command\Object\DeleteCommentCommand;
-use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Module\Icingadb\Forms\Command\CommandForm;
 use Icinga\Web\Notification;
-use ipl\Orm\Model;
 use ipl\Web\Common\RedirectOption;
 use ipl\Web\Widget\Icon;
+use Traversable;
 
 class DeleteCommentForm extends CommandForm
 {
-    use Auth;
     use RedirectOption;
 
     protected $defaultAttributes = ['class' => 'inline'];
@@ -55,19 +54,22 @@ protected function assembleSubmitButton()
         );
     }
 
-    /**
-     * @return ?DeleteCommentCommand
-     */
-    protected function getCommand(Model $object)
+    protected function getCommands(Traversable $objects): Traversable
     {
-        if (! $this->isGrantedOn('icingadb/command/comment/delete', $object->{$object->object_type})) {
-            return null;
-        }
+        $granted = (function () use ($objects): Generator {
+            foreach ($objects as $object) {
+                if ($this->isGrantedOn('icingadb/command/comment/delete', $object->{$object->object_type})) {
+                    yield $object;
+                }
+            }
+        })();
 
-        $command = new DeleteCommentCommand();
-        $command->setCommentName($object->name);
-        $command->setAuthor($this->getAuth()->getUser()->getUsername());
+        if ($granted->valid()) {
+            $command = new DeleteCommentCommand();
+            $command->setObjects($granted);
+            $command->setAuthor($this->getAuth()->getUser()->getUsername());
 
-        return $command;
+            yield $command;
+        }
     }
 }