| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.storm.security.auth; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.storm.Config; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| public class FixedGroupsMapping implements IGroupMappingServiceProvider { |
| |
| public static final String STORM_FIXED_GROUP_MAPPING = "storm.fixed.group.mapping"; |
| public static Logger LOG = LoggerFactory.getLogger(FixedGroupsMapping.class); |
| public Map<String, Set<String>> cachedGroups = new HashMap<String, Set<String>>(); |
| |
| /** |
| * Invoked once immediately after construction. |
| * |
| * @param stormConf Storm configuration |
| */ |
| @Override |
| public void prepare(Map<String, Object> stormConf) { |
| Map<?, ?> params = (Map<?, ?>) stormConf.get(Config.STORM_GROUP_MAPPING_SERVICE_PARAMS); |
| Map<String, Set<String>> mapping = (Map<String, Set<String>>) params.get(STORM_FIXED_GROUP_MAPPING); |
| if (mapping != null) { |
| cachedGroups.putAll(mapping); |
| } else { |
| LOG.warn("There is no initial group mapping"); |
| } |
| } |
| |
| /** |
| * Returns list of groups for a user. |
| * |
| * @param user get groups for this user |
| * @return list of groups for a given user |
| */ |
| @Override |
| public Set<String> getGroups(String user) throws IOException { |
| if (cachedGroups.containsKey(user)) { |
| return cachedGroups.get(user); |
| } |
| |
| // I don't have anything |
| return new HashSet<String>(); |
| } |
| } |