Add DirectoryCollection class for creating directory-backed collections

[libs/datafile.git] / source / directorycollection.cpp

diff --git a/source/directorycollection.cpp b/source/directorycollection.cpp
new file mode 100644 (file)
index 0000000..25808d6
--- /dev/null
+++ b/source/directorycollection.cpp
@@ -0,0 +1,41 @@
+#include <msp/fs/stat.h>
+#include "directorycollection.h"
+
+using namespace std;
+
+namespace Msp {
+namespace DataFile {
+
+DirectoryCollection::DirectoryCollection()
+{
+       set_directory(".");
+}
+
+void DirectoryCollection::set_directory(const FS::Path &d)
+{
+       dirs.clear();
+       add_directory(d);
+}
+
+void DirectoryCollection::add_directory(const FS::Path &d)
+{
+       dirs.push_back(d);
+}
+
+bool DirectoryCollection::lookup_file(const string &name, FS::Path &result) const
+{
+       for(list<FS::Path>::const_iterator i=dirs.begin(); i!=dirs.end(); ++i)
+       {
+               FS::Path file_path = *i/name;
+               if(FS::exists(file_path))
+               {
+                       result = file_path;
+                       return true;
+               }
+       }
+
+       return false;
+}
+
+} // namespace DataFile
+} // namespace Msp