public VmwareCloudImage(
      @NotNull final VMWareApiConnector apiConnector,
      @NotNull final VmwareCloudImageDetails imageDetails,
      @NotNull final CloudAsyncTaskExecutor asyncTaskExecutor,
      @NotNull final File idxStorage) {
    super(imageDetails.getNickname(), imageDetails.getNickname());
    myImageDetails = imageDetails;
    myApiConnector = apiConnector;
    myAsyncTaskExecutor = asyncTaskExecutor;
    myInstances.clear();
    myIdxFile = new File(idxStorage, imageDetails.getNickname() + ".idx");
    if (!myIdxFile.exists()) {
      try {
        FileUtil.writeFileAndReportErrors(myIdxFile, "1");
      } catch (IOException e) {
        LOG.warn(
            String.format(
                "Unable to write idx file '%s': %s", myIdxFile.getAbsolutePath(), e.toString()));
      }
    }

    Map<String, VmwareInstance> realInstances = null;
    try {
      realInstances = myApiConnector.listImageInstances(this);
    } catch (VmwareCheckedCloudException e) {
      updateErrors(TypedCloudErrorInfo.fromException(e));
      return;
    }
    if (imageDetails.getBehaviour().isUseOriginal()) {
      final VmwareCloudInstance imageInstance =
          new VmwareCloudInstance(
              this, imageDetails.getSourceName(), VmwareConstants.CURRENT_STATE);
      myInstances.put(myImageDetails.getSourceName(), imageInstance);

      final VmwareInstance vmwareInstance = realInstances.get(imageDetails.getSourceName());
      if (vmwareInstance != null) {
        imageInstance.setStatus(vmwareInstance.getInstanceStatus());
      } else {
        imageInstance.setStatus(InstanceStatus.UNKNOWN);
        imageInstance.updateErrors(
            new TypedCloudErrorInfo("NoVM", "VM doesn't exist: " + imageDetails.getSourceName()));
      }
    } else {
      for (String instanceName : realInstances.keySet()) {
        final VmwareInstance instance = realInstances.get(instanceName);
        final String snapshotName = instance.getSnapshotName();
        VmwareCloudInstance cloudInstance =
            new VmwareCloudInstance(this, instanceName, snapshotName);
        cloudInstance.setStatus(instance.getInstanceStatus());
        myInstances.put(instanceName, cloudInstance);
      }
    }
  }
 protected String generateNewVmName() {
   int nextIdx = 0;
   try {
     nextIdx = Integer.parseInt(FileUtil.readText(myIdxFile));
     FileUtil.writeFileAndReportErrors(myIdxFile, String.valueOf(nextIdx + 1));
   } catch (Exception e) {
     LOG.warn(
         "Will generate random clone index. Reason: unable to read idx file: " + e.toString());
     Random r = new Random();
     nextIdx = 100000 + r.nextInt(100000);
   }
   return String.format("%s-%d", getId(), nextIdx);
 }