private Map<String, String> setMotors(final MotorContainer cont, final DataMessageComponent comp)
      throws DataMessageException {

    final Map<String, String> ret = new HashMap<String, String>(cont.size());
    for (MotorBean mb : cont.getExpressions()) {

      final String motorPath = SubstituteUtils.substitute(mb.getMotorName(), comp.getScalar());
      final String baseUri = TangoUtils.getHardwareAddress(motorPath);
      String attribute = mb.getAttributeName();
      if (attribute == null || "".equals(attribute.trim())) attribute = "Position";

      DeviceAttribute value = null;
      if (!mb.isReadOnly()) {
        try {
          final double dbl =
              ExpressionUtils.evaluateExpression(mb.getExpression(), comp.getScalar());
          if (Double.isNaN(dbl) || Double.isInfinite(dbl)) throw new Exception();
          value = new DeviceAttribute(attribute, dbl);

        } catch (Exception e) {
          final String exp = SubstituteUtils.substitute(mb.getExpression(), comp.getScalar());
          value = new DeviceAttribute(attribute, exp);
        }
      }

      try {
        final TangoConnection connection =
            TangoConnectionFactory.openConnection(baseUri, attribute);
        if (value != null) {
          connection.setValue(value); // Uses remote call for MockMode	
        }
        try {
          value = connection.getValue();
        } catch (Exception ne) {
          logger.debug("Error in TangoMotorTransformer " + getName());
          logger.debug("Error message: " + ne.getMessage());
          logger.debug(ne.getStackTrace().toString());
          value = new DeviceAttribute(attribute, 0.0);
        }
        try {
          final String dblString = String.valueOf(value.extractDouble());
          ret.put(connection.getName(), dblString);
        } catch (Exception ne) {
          ret.put(connection.getName(), String.valueOf(value.extractString()));
        }

      } catch (Exception e) {
        throw createDataMessageException("Cannot connect to " + baseUri, e);
      }
    }

    return ret;
  }
  public void setPreview(boolean isPreview) {
    if (!isPreview) {
      final String text = getReplaceText();
      if (text == null) return;
      setText(text, true);
      setReplaceText(null);
    } else {
      EclipseUtils.getActivePage().saveEditor(this, false);
      final Map<String, String> vars = actor.getExampleValues();

      final String text = getText();
      setReplaceText(text);
      final String rep = SubstituteUtils.substitute(text, vars);

      setText(rep, false);
    }
  }