| /* |
| * 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.carbondata.core.util; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| /** |
| * This class maintains ThreadLocal session params |
| */ |
| public class ThreadLocalSessionInfo { |
| static final InheritableThreadLocal<CarbonSessionInfo> threadLocal = |
| new InheritableThreadLocal<CarbonSessionInfo>(); |
| |
| public static void setCarbonSessionInfo(CarbonSessionInfo carbonSessionInfo) { |
| threadLocal.set(carbonSessionInfo); |
| } |
| |
| public static CarbonSessionInfo getCarbonSessionInfo() { |
| return threadLocal.get(); |
| } |
| |
| public static synchronized CarbonSessionInfo getOrCreateCarbonSessionInfo() { |
| CarbonSessionInfo info = threadLocal.get(); |
| if (info == null || info.getSessionParams() == null) { |
| info = new CarbonSessionInfo(); |
| info.setSessionParams(new SessionParams()); |
| threadLocal.set(info); |
| } |
| return info; |
| } |
| |
| public static void setConfigurationToCurrentThread(Configuration configuration) { |
| getOrCreateCarbonSessionInfo().getNonSerializableExtraInfo().put("carbonConf", configuration); |
| } |
| |
| public static void unsetAll() { |
| threadLocal.remove(); |
| } |
| |
| /** |
| * use to check whether the thread has the hadoop configuration or not |
| */ |
| public static void shouldHaveCarbonConf() { |
| CarbonSessionInfo sessionInfo = getCarbonSessionInfo(); |
| if (sessionInfo == null) { |
| throw new RuntimeException("the thread not contain CarbonSessionInfo"); |
| } |
| Object conf = sessionInfo.getNonSerializableExtraInfo().get("carbonConf"); |
| if (conf == null) { |
| throw new RuntimeException("the thread not contain hadoop configuration"); |
| } |
| } |
| } |