Exemplo n.º 1
0
 /** Saves the content of a given system store to file. */
 public static SystemStore save(File file, SystemStore store, boolean clearDir)
     throws IOException {
   if (!GRAMMAR.hasExtension(file)) {
     throw new IOException(String.format("File '%s' does not refer to a production system", file));
   }
   // if the file already exists, rename it
   // in order to be able to restore if saving fails
   File newFile = null;
   if (file.exists()) {
     newFile = file;
     do {
       newFile = new File(newFile.getParent(), "Copy of " + newFile.getName());
     } while (newFile.exists());
     if (clearDir) {
       if (!file.renameTo(newFile)) {
         throw new IOException(String.format("Can't save grammar to existing file '%s'", file));
       }
     } else {
       Util.copyDirectory(file, newFile, true);
     }
   }
   try {
     DefaultFileSystemStore result = new DefaultFileSystemStore(file, true);
     result.reload();
     // save properties
     for (ResourceKind kind : ResourceKind.values()) {
       if (kind == PROPERTIES) {
         result.putProperties(store.getProperties());
       } else if (kind.isTextBased()) {
         result.putTexts(kind, store.getTexts(kind));
       } else {
         result.putGraphs(kind, store.getGraphs(kind).values(), false);
       }
     }
     if (newFile != null) {
       boolean deleted = deleteRecursive(newFile);
       assert deleted : String.format("Failed to delete '%s'", newFile);
     }
     return result;
   } catch (IOException exc) {
     file.delete();
     // attempt to re-rename previously existing file
     if (newFile != null) {
       newFile.renameTo(file);
     }
     throw exc;
   }
 }
 @Override
 public SystemStore save(File file, boolean clearDir) throws IOException {
   return SystemStore.save(file, this, clearDir);
 }