--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/src/main/java/de/intevation/flys/utils/FileTools.java	Fri Sep 28 12:14:12 2012 +0200
@@ -0,0 +1,78 @@
+package de.intevation.flys.utils;
+
+import java.io.File;
+
+import java.util.Stack;
+
+import org.apache.log4j.Logger;
+
+public class FileTools
+{
+    private static Logger log = Logger.getLogger(FileTools.class);
+
+    private FileTools() {
+    }
+
+    public static File repair(File file) {
+        file = file.getAbsoluteFile();
+        if (file.exists()) {
+            return file;
+        }
+        Stack<String> parts = new Stack<String>();
+        File curr = file;
+        while (curr != null) {
+            String name = curr.getName();
+            if (name.length() > 0) {
+                parts.push(curr.getName());
+            }
+            curr = curr.getParentFile();
+        }
+
+        curr = null;
+        OUTER: while (!parts.isEmpty()) {
+            String f = parts.pop();
+            log.debug("fixing: '" + f + "'");
+            if (curr == null) {
+                // XXX: Not totaly correct because there
+                // more than one root on none unix systems.
+                for (File root: File.listRoots()) {
+                    File [] files = root.listFiles();
+                    if (files == null) {
+                        log.warn("cannot list '" + root);
+                        continue;
+                    }
+                    for (File candidate: files) {
+                        if (candidate.getName().equalsIgnoreCase(f)) {
+                            curr = new File(root, candidate.getName());
+                            continue OUTER;
+                        }
+                    }
+                }
+                break;
+            }
+            else {
+                File [] files = curr.listFiles();
+                if (files == null) {
+                    log.warn("cannot list: '" + curr + "'");
+                    return file;
+                }
+                for (File candidate: files) {
+                    if (candidate.getName().equalsIgnoreCase(f)) {
+                        curr = new File(curr, candidate.getName());
+                        continue OUTER;
+                    }
+                }
+                curr = null;
+                break;
+            }
+        }
+
+        if (curr == null) {
+            log.warn("cannot repair path '" + file + "'");
+            return file;
+        }
+
+        return curr;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :