Adding AbstractMultiLoader

hhi/AbstractMultiLoader.hhi

@@ -0,0 +1,12 @@
+<?hh // strict
+
+namespace Caridea\Acl;
+
+abstract class AbstractMultiLoader implements Loader, MultiStrategy
+{
+    public function load(Target $target, array<Subject> $subjects, Service $service): Acl
+    {
+        $acls = $this->loadAll([$target], $subjects, $service);
+        return $acls[(string) $target];
+    }
+}

src/AbstractMultiLoader.php

@@ -0,0 +1,42 @@
+<?php
+declare(strict_types=1);
+/**
+ * Caridea
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ *
+ * @copyright 2015-2016 LibreWorks contributors
+ * @license   http://opensource.org/licenses/Apache-2.0 Apache 2.0 License
+ */
+namespace Caridea\Acl;
+
+/**
+ * Abstract base for `Loaders` which implement `MultiStrategy`
+ *
+ * @copyright 2015-2016 LibreWorks contributors
+ * @license   http://opensource.org/licenses/Apache-2.0 Apache 2.0 License
+ */
+abstract class AbstractMultiLoader implements Loader, MultiStrategy
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function load(Target $target, array $subjects, Service $service): Acl
+    {
+        $acls = $this->loadAll([$target], $subjects, $service);
+        if (!array_key_exists((string) $target, $acls)) {
+            throw new Exception\Unloadable("Could not load ACL for $target");
+        }
+        return $acls[(string) $target];
+    }
+}

tests/AbstractMultiLoaderTest.php

@@ -0,0 +1,62 @@
+<?php
+declare(strict_types=1);
+/**
+ * Caridea
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ *
+ * @copyright 2015-2016 LibreWorks contributors
+ * @license   http://opensource.org/licenses/Apache-2.0 Apache 2.0 License
+ */
+namespace Caridea\Acl;
+
+/**
+ * Generated by hand.
+ */
+class AbstractMultiLoaderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @covers Caridea\Acl\AbstractMultiLoader::load
+     */
+    public function testLoad()
+    {
+        $target = new Target('foo', 'bar');
+        $subjects = [Subject::role('admin')];
+
+        $acl = $this->getMockForAbstractClass(Acl::class);
+        $service = $this->getMockBuilder(Service::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $loader = $this->getMockBuilder(AbstractMultiLoader::class)
+            ->setMethods(['loadAll', 'supports'])
+            ->getMock();
+        $loader->expects($this->never())
+            ->method('supports');
+        $loader->expects($this->once())
+            ->method('loadAll')
+            ->with(
+                $this->equalTo([$target]),
+                $this->equalTo($subjects),
+                $this->equalTo($service)
+            )->willReturnCallback(function ($targets, $subs, $svc) use ($acl, $target) {
+                return [
+                    ((string) $target) => $acl,
+                ];
+            });
+
+        $acl2 = $loader->load($target, $subjects, $service);
+        $this->assertSame($acl, $acl2);
+
+        $this->verifyMockObjects();
+    }
+}