public synchronized Group addGroup()

in extensions/torque/src/java/org/apache/turbine/services/security/torque/TorqueSecurityService.java [717:767]
43 lines of code
5 McCabe index (conditional complexity)

    public synchronized Group addGroup(Group group)
        throws DataBackendException,
               EntityExistsException
    {
        boolean groupExists = false;

        if (StringUtils.isEmpty(group.getName()))
        {
            throw new DataBackendException("Could not create "
                                           + "a group with empty name!");
        }

        try
        {
            lockExclusive();
            groupExists = checkExists(group);
            if (!groupExists)
            {
                // add a row to the table
                Criteria criteria = GroupPeerManager.buildCriteria(group);
                GroupPeerManager.doInsert(criteria);
                // try to get the object back using the name as key.
                criteria = new Criteria();
                criteria.add(GroupPeerManager.getNameColumn(),
                             group.getName());
                List results = GroupPeerManager.doSelect(criteria);
                if (results.size() != 1)
                {
                    throw new DataBackendException(
                        "Internal error - query returned "
                        + results.size() + " rows");
                }
                Group newGroup = (Group) results.get(0);
                // add the group to system-wide cache
                getAllGroups().add(newGroup);
                // return the object with correct id
                return newGroup;
            }
        }
        catch (Exception e)
        {
            throw new DataBackendException("addGroup(Group) failed", e);
        }
        finally
        {
            unlockExclusive();
        }
        // the only way we could get here without return/throw tirggered
        // is that the groupExists was true.
        throw new EntityExistsException("Group '" + group + "' already exists");
    }