Authorization

[DarioCrivelli]

There are no examples of authorization checks in the available demos.

The following example code shows the use of notifyNewTables to check subscription requests and refuse them if needed.
The methods shown should be added to the Metadata Adapter class.

<br /> public boolean wantsTablesNotification(String user) {<br /> return true;<br /> }<br /> <br /> public void notifyNewTables(String user, String session, TableInfo[] tables)<br /> throws CreditsException, NotificationException {<br /> for (TableInfo ti : tables) {<br /> String[] items;<br /> try {<br /> items = this.getItems(user, session, ti.getId());<br /> } catch (ItemsException e) {<br /> // we don't expect this at this stage<br /> throw new NotificationException(e.getMessage());<br /> }<br /> for (String item : items) {<br /> if (! isAllowed(item, user)) {<br /> throw new CreditsException(-1, "subscription not allowed");<br /> }<br /> }<br /> }<br /> }<br /> <br /> private boolean isAllowed(String item, String user) {<br /> // TODO check the allowance<br /> return false;<br /> }<br />