From 4f8cbb99dd6b1fde47d8f28dd3b380409811f933 Mon Sep 17 00:00:00 2001
From: Eric Lippmann <eric.lippmann@netways.de>
Date: Mon, 28 Jul 2014 18:58:46 +0200
Subject: [PATCH] doc/lib: Add `NonEmptyFileIterator' for iterating over
 non-empty files

refs #4820
---
 .../doc/library/Doc/NonEmptyFileIterator.php  | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 modules/doc/library/Doc/NonEmptyFileIterator.php

diff --git a/modules/doc/library/Doc/NonEmptyFileIterator.php b/modules/doc/library/Doc/NonEmptyFileIterator.php
new file mode 100644
index 000000000..71bf5acfa
--- /dev/null
+++ b/modules/doc/library/Doc/NonEmptyFileIterator.php
@@ -0,0 +1,31 @@
+<?php
+// {{{ICINGA_LICENSE_HEADER}}}
+// {{{ICINGA_LICENSE_HEADER}}
+
+namespace Icinga\Module\Doc;
+
+use RecursiveFilterIterator;
+
+/**
+ * Recursive iterator over non-empty files
+ */
+class NonEmptyFileIterator extends RecursiveFilterIterator
+{
+    /**
+     * Accept non-empty files
+     *
+     * @return bool Whether the current element of the iterator is acceptable
+     *              through this filter
+     */
+    public function accept()
+    {
+        $current = $this->getInnerIterator()->current();
+        /* @var $current \SplFileInfo */
+        if (! $current->isFile()
+            || $current->getSize() === 0
+        ) {
+            return false;
+        }
+        return true;
+    }
+}