| /* |
| * 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.drill.exec.rpc.security; |
| |
| import com.google.common.base.Strings; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeys; |
| |
| import java.io.InputStream; |
| import java.util.Properties; |
| |
| |
| public class SecurityConfiguration extends Configuration { |
| //private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(SecurityConfiguration.class); |
| |
| static { |
| Properties prop = new Properties(); |
| try { |
| // Load the properties file containing the namespace prefix based on profile used |
| // to build jdbc-all package. This prefix is used to add on certain Hadoop classes class path. |
| final InputStream inputStream = SecurityConfiguration.class.getClassLoader().getResourceAsStream("profile.props"); |
| |
| // For null inputStream prop.load() throws NullPointerException |
| // Get the property value and set it in system property |
| prop.load(inputStream); |
| System.setProperty("drill.security.namespacePrefix", prop.getProperty("package.namespace.prefix").trim()); |
| |
| } catch (Exception ex) { |
| // Ignore the exception which means that property value will be null and is handled in consumer of System Property |
| } |
| } |
| |
| public SecurityConfiguration() { |
| super(); |
| updateGroupMapping(); |
| } |
| |
| /** |
| * Update the GroupMapping class name to add namespace prefix retrieved from System Property. This is needed since |
| * in drill-jdbc-all jar we are packaging hadoop dependencies under that namespace. This will help application |
| * using this jar as driver to avoid conflict with it's own hadoop dependency if any. The property is needed only |
| * when Hadoop classes are relocated to different namespace which is done inside jdbc-all package. |
| */ |
| private void updateGroupMapping() { |
| final String originalClassName = get(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING); |
| final String profilePrefix = System.getProperty("drill.security.namespacePrefix"); |
| |
| if (originalClassName != null && !Strings.isNullOrEmpty(profilePrefix) && !originalClassName.startsWith(profilePrefix)) { |
| set(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING, profilePrefix + originalClassName); |
| } |
| } |
| } |