| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.sentry.api.service.thrift; |
| |
| import com.google.gson.Gson; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.sentry.provider.db.service.persistent.SentryStore; |
| import org.apache.sentry.service.web.ConfServlet; |
| |
| /** |
| * Servlet for the presentation of the list of roles in the Sentry system. |
| */ |
| public class RolesServlet extends HttpServlet { |
| |
| public void doGet(HttpServletRequest request, HttpServletResponse response) |
| throws ServletException, IOException { |
| Configuration conf = (Configuration)getServletContext().getAttribute( |
| ConfServlet.CONF_CONTEXT_ATTRIBUTE); |
| assert conf != null; |
| |
| Writer out = response.getWriter(); |
| try { |
| SentryStore sentrystore = new SentryStore(conf); |
| Map<String, Set<TSentryPrivilege>> roleMap = new HashMap<>(); |
| Set<String> roleSet = sentrystore.getAllRoleNames(); |
| for (String roleName: roleSet) { |
| roleMap.put(roleName, sentrystore.getAllTSentryPrivilegesByRoleName(roleName)); |
| } |
| String json = new Gson().toJson(roleMap); |
| response.setContentType("application/json"); |
| response.setCharacterEncoding("UTF-8"); |
| out.write(json); |
| } catch (Exception e) { |
| response.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage()); |
| } |
| finally { |
| out.close(); |
| } |
| } |
| } |