Initial xentral_oss_20.3.c9ffacf

2021-05-21 08:49:41 +02:00
parent 5406e4a551
commit 34e5ac43d9
18884 changed files with 2109867 additions and 0 deletions
@@ -0,0 +1,74 @@
+<?php
+
+namespace Xentral\Components\Pdf\Merger;
+
+use Xentral\Components\Pdf\Exception\FileExistsException;
+use Xentral\Components\Pdf\Exception\FileNotFoundException;
+use Xentral\Components\Pdf\Exception\FileNotWritableException;
+use Xentral\Components\Pdf\Exception\InvalidArgumentException;
+use Xentral\Components\Pdf\Exception\PdfComponentExceptionInterface;
+
+abstract class AbstractPdfMerger
+{
+    /**
+     * @param array|string[] $sourceFiles
+     * @param string         $targetFile
+     *
+     * @throws PdfComponentExceptionInterface
+     *
+     * @return void
+     */
+    abstract public function mergeFiles(array $sourceFiles, $targetFile);
+
+    /**
+     * @param array|string[] $sourceFiles
+     * @param string         $targetFile
+     *
+     * @throws InvalidArgumentException
+     * @throws FileExistsException
+     * @throws FileNotWritableException
+     * @throws FileNotFoundException
+     *
+     * @return void
+     */
+    protected function preCheckMergeFiles(array $sourceFiles, $targetFile)
+    {
+        if (empty($sourceFiles)) {
+            throw new InvalidArgumentException('Can not merge PDFs. Required parameter "sourceFiles" is empty.');
+        }
+        if (empty($targetFile)) {
+            throw new InvalidArgumentException('Can not merge PDFs. Required parameter "$targetFile" is empty.');
+        }
+        if (is_file($targetFile)) {
+            throw new FileExistsException(sprintf(
+                'Can not merge PDFs. Target file "%s" already exists.', $targetFile
+            ));
+        }
+        if (!$this->isFilePathWriteable($targetFile)) {
+            throw new FileNotWritableException(sprintf(
+                'Can not merge PDFs. Unable to create target file "%s" .', $targetFile
+            ));
+        }
+
+        foreach ($sourceFiles as $sourceFile) {
+            if (!is_file($sourceFile)) {
+                throw new FileNotFoundException(sprintf(
+                    'Can not merge PDFs. Source file "%s" does not exist.', $sourceFile
+                ));
+            }
+        }
+    }
+
+    /**
+     * @param string $filePath
+     *
+     * @return bool
+     */
+    protected function isFilePathWriteable($filePath)
+    {
+        $result = @fopen($filePath, 'wb');
+        @unlink($filePath);
+
+        return $result !== false;
+    }
+}