Adding simple file reader task and cast transformer

Author: VincentChalnot

Task/File/FileReaderTask.php

@@ -0,0 +1,58 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of the CleverAge/ProcessBundle package.
+ *
+ * Copyright (C) 2017-2019 Clever-Age
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CleverAge\ProcessBundle\Task\File;
+
+use CleverAge\ProcessBundle\Model\AbstractConfigurableTask;
+use CleverAge\ProcessBundle\Model\ProcessState;
+use Symfony\Component\Filesystem\Exception\IOException;
+use Symfony\Component\OptionsResolver\Exception\AccessException;
+use Symfony\Component\OptionsResolver\Exception\ExceptionInterface;
+use Symfony\Component\OptionsResolver\Exception\UndefinedOptionsException;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+/**
+ * Read the whole file and output its content
+ *
+ * @todo Provide additional safeguards like if file exists and is readable
+ *
+ * @author Vincent Chalnot <[email protected]>
+ */
+class FileReaderTask extends AbstractConfigurableTask
+{
+    /**
+     * @param ProcessState $state
+     *
+     * @throws ExceptionInterface
+     * @throws IOException
+     */
+    public function execute(ProcessState $state)
+    {
+        $options = $this->getOptions($state);
+
+        $state->setOutput(file_get_contents($options['filename']));
+    }
+
+    /**
+     * @param OptionsResolver $resolver
+     *
+     * @throws AccessException
+     * @throws UndefinedOptionsException
+     */
+    protected function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setRequired(
+            [
+                'filename',
+            ]
+        );
+        $resolver->setAllowedTypes('filename', ['string']);
+    }
+}

Transformer/CastTransformer.php

@@ -0,0 +1,56 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of the CleverAge/ProcessBundle package.
+ *
+ * Copyright (C) 2017-2019 Clever-Age
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CleverAge\ProcessBundle\Transformer;
+
+use Symfony\Component\OptionsResolver\Exception\ExceptionInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+/**
+ * Cast a value to a different PHP type
+ *
+ * @author Valentin Clavreul <[email protected]>
+ * @author Vincent Chalnot <[email protected]>
+ */
+class CastTransformer implements ConfigurableTransformerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function transform($value, array $options = [])
+    {
+        settype($value, $options['type']);
+
+        return $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getCode()
+    {
+        return 'cast';
+    }
+
+    /**
+     * @param OptionsResolver $resolver
+     *
+     * @throws ExceptionInterface
+     */
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setRequired(
+            [
+                'type',
+            ]
+        );
+        $resolver->setAllowedTypes('type', ['string']);
+    }
+}