| /** |
| * 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.lens.server; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.apache.lens.server.api.LensConfConstants; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hive.conf.HiveConf; |
| |
| /** |
| * The Class LensServerConf. |
| */ |
| public final class LensServerConf { |
| private LensServerConf() { |
| |
| } |
| |
| private static final class ConfHolder { |
| public static final HiveConf HIVE_CONF = new HiveConf(); |
| // configuration object which does not load defaults and loads only lens*.xml files. |
| // and removes any server specific configuration, that should not be passed to drivers |
| private static final Configuration OVERRIDING_CONF_FOR_DRIVER = new Configuration(false); |
| |
| static { |
| HIVE_CONF.addResource("lensserver-default.xml"); |
| HIVE_CONF.addResource("lens-site.xml"); |
| Configuration conf = new Configuration(false); |
| conf.addResource("lens-site.xml"); |
| Iterator<Map.Entry<String, String>> confItr = conf.iterator(); |
| while (confItr.hasNext()) { |
| Map.Entry<String, String> prop = confItr.next(); |
| if (!prop.getKey().startsWith(LensConfConstants.SERVER_PFX)) { |
| OVERRIDING_CONF_FOR_DRIVER.set(prop.getKey(), prop.getValue()); |
| } |
| } |
| } |
| } |
| |
| /** |
| * The HiveConf object with lensserver-default.xml and lens-site.xml added. |
| * |
| * @return the hive conf |
| */ |
| public static HiveConf getHiveConf() { |
| return ConfHolder.HIVE_CONF; |
| } |
| |
| /** |
| * The configuration object which does not load any defaults and loads only lens*.xml files. This is passed to |
| * all drivers in configure |
| * |
| * @return the conf |
| */ |
| public static Configuration getConfForDrivers() { |
| return ConfHolder.OVERRIDING_CONF_FOR_DRIVER; |
| } |
| |
| /** |
| * Creates a new configuration object from Server HiveConf, Creation should would be called usually from tests |
| * to modify some configurations. |
| * |
| * @return |
| */ |
| public static HiveConf createHiveConf() { |
| return new HiveConf(ConfHolder.HIVE_CONF); |
| } |
| } |