sascha@177: package de.intevation.flys.utils;
sascha@177: 
sascha@177: import java.io.File;
sascha@177: 
sascha@177: import java.util.Stack;
sascha@177: 
sascha@177: import org.apache.log4j.Logger;
sascha@177: 
sascha@177: public class FileTools
sascha@177: {
sascha@177:     private static Logger log = Logger.getLogger(FileTools.class);
sascha@177: 
sascha@177:     private FileTools() {
sascha@177:     }
sascha@177: 
sascha@177:     public static File repair(File file) {
sascha@177:         file = file.getAbsoluteFile();
sascha@177:         if (file.exists()) {
sascha@177:             return file;
sascha@177:         }
sascha@177:         Stack<String> parts = new Stack<String>();
sascha@177:         File curr = file;
sascha@177:         while (curr != null) {
sascha@177:             String name = curr.getName();
sascha@177:             if (name.length() > 0) {
sascha@177:                 parts.push(curr.getName());
sascha@177:             }
sascha@177:             curr = curr.getParentFile();
sascha@177:         }
sascha@177: 
sascha@177:         curr = null;
sascha@177:         OUTER: while (!parts.isEmpty()) {
sascha@177:             String f = parts.pop();
sascha@177:             log.debug("fixing: '" + f + "'");
sascha@177:             if (curr == null) {
sascha@177:                 // XXX: Not totaly correct because there
sascha@177:                 // more than one root on none unix systems.
sascha@177:                 for (File root: File.listRoots()) {
sascha@177:                     File [] files = root.listFiles();
sascha@177:                     if (files == null) {
sascha@177:                         log.warn("cannot list '" + root);
sascha@177:                         continue;
sascha@177:                     }
sascha@177:                     for (File candidate: files) {
sascha@177:                         if (candidate.getName().equalsIgnoreCase(f)) {
sascha@177:                             curr = new File(root, candidate.getName());
sascha@177:                             continue OUTER;
sascha@177:                         }
sascha@177:                     }
sascha@177:                 }
sascha@177:                 break;
sascha@177:             }
sascha@177:             else {
sascha@177:                 File [] files = curr.listFiles();
sascha@177:                 if (files == null) {
sascha@177:                     log.warn("cannot list: '" + curr + "'");
sascha@177:                     return file;
sascha@177:                 }
sascha@177:                 for (File candidate: files) {
sascha@177:                     if (candidate.getName().equalsIgnoreCase(f)) {
sascha@177:                         curr = new File(curr, candidate.getName());
sascha@177:                         continue OUTER;
sascha@177:                     }
sascha@177:                 }
sascha@177:                 curr = null;
sascha@177:                 break;
sascha@177:             }
sascha@177:         }
sascha@177: 
sascha@177:         if (curr == null) {
sascha@177:             log.warn("cannot repair path '" + file + "'");
sascha@177:             return file;
sascha@177:         }
sascha@177: 
sascha@177:         return curr;
sascha@177:     }
sascha@177: }
sascha@177: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :