DefaultRolePermissionService.java 文件源码

/**
 * Create permissions, note that permissionType + targetId should be unique
 */
@Transactional
public Set<Permission> createPermissions(Set<Permission> permissions) {
    Multimap<String, String> targetIdPermissionTypes = HashMultimap.create();
    for (Permission permission : permissions) {
        targetIdPermissionTypes.put(permission.getTargetId(), permission.getPermissionType());
    }

    for (String targetId : targetIdPermissionTypes.keySet()) {
        Collection<String> permissionTypes = targetIdPermissionTypes.get(targetId);
        List<Permission> current =
                permissionRepository.findByPermissionTypeInAndTargetId(permissionTypes, targetId);
        Preconditions.checkState(CollectionUtils.isEmpty(current),
                "Permission with permissionType %s targetId %s already exists!", permissionTypes,
                targetId);
    }

    Iterable<Permission> results = permissionRepository.save(permissions);
    return FluentIterable.from(results).toSet();
}