Addressed comments

src/storage/io_config.cpp

@@ -0,0 +1,28 @@
+#include "storage/io_config.hpp"
+
+#include "util/log.hpp"
+
+#include <boost/filesystem.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/path.hpp>
+
+namespace osrm
+{
+namespace storage
+{
+bool IOConfig::IsValid() const
+{
+    bool success = true;
+    for (auto &fileName : required_input_files)
+    {
+        if (!boost::filesystem::is_regular_file({base_path.string() + fileName.string()}))
+        {
+            util::Log(logWARNING) << "Missing/Broken File: " << base_path.string()
+                                  << fileName.string();
+            success = false;
+        }
+    }
+    return success;
+}
+}
+}

src/storage/storage_config.cpp

@@ -1,27 +0,0 @@
-#include "storage/storage_config.hpp"
-#include "util/log.hpp"
-
-#include <boost/filesystem/operations.hpp>
-
-namespace osrm
-{
-namespace storage
-{
-namespace
-{
-bool CheckFileList(const std::vector<boost::filesystem::path> &files)
-{
-    bool success = true;
-    for (auto &path : files)
-    {
-        if (!boost::filesystem::exists(path))
-        {
-            util::Log(logERROR) << "Missing File: " << path.string();
-            success = false;
-        }
-    }
-    return success;
-}
-}
-}
-}