/**
* Returns the role that has the specified name.
*
* @throws RoleNotFoundException when the role could not be found
*/
public Role getRole(String roleName) throws IOException {
Assert.hasLength(roleName);
ILockedRepository repo = null;
try {
repo = globalRepositoryManager.getProjectCentralRepository(REPOSITORY_NAME, false);
String json = BlobUtils.getHeadContent(repo.r(), roleName + ROLE_SUFFIX);
if (json == null) {
throw new RoleNotFoundException(roleName);
}
Gson gson = new GsonBuilder().enableComplexMapKeySerialization().create();
Map<String, Object> roleMap =
gson.fromJson(json, new TypeToken<Map<String, Object>>() {}.getType());
@SuppressWarnings("unchecked")
Collection<String> permissions =
(Collection<String>) roleMap.get("permissions"); // $NON-NLS-1$
EnumSet<Permission> rolePermissions = EnumSet.noneOf(Permission.class);
for (String permission : permissions) {
rolePermissions.add(Permission.valueOf(permission));
}
Role role = new Role(roleName, rolePermissions);
return role;
} finally {
Util.closeQuietly(repo);
}
}
