| /** |
| * 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.hadoop.ozone.ha; |
| |
| import com.google.common.base.Joiner; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.hadoop.hdds.conf.ConfigurationSource; |
| import org.apache.hadoop.hdds.conf.OzoneConfiguration; |
| import org.apache.hadoop.net.NetUtils; |
| import org.slf4j.Logger; |
| |
| import java.net.InetSocketAddress; |
| |
| /** |
| * Utilities related to configuration. |
| */ |
| public final class ConfUtils { |
| |
| private ConfUtils() { |
| |
| } |
| |
| /** |
| * Add non empty and non null suffix to a key. |
| */ |
| public static String addSuffix(String key, String suffix) { |
| if (suffix == null || suffix.isEmpty()) { |
| return key; |
| } |
| assert !suffix.startsWith(".") : |
| "suffix '" + suffix + "' should not already have '.' prepended."; |
| return key + "." + suffix; |
| } |
| |
| /** |
| * Return configuration key of format key.suffix1.suffix2...suffixN. |
| */ |
| public static String addKeySuffixes(String key, String... suffixes) { |
| String keySuffix = concatSuffixes(suffixes); |
| return addSuffix(key, keySuffix); |
| } |
| |
| /** |
| * Concatenate list of suffix strings '.' separated. |
| */ |
| public static String concatSuffixes(String... suffixes) { |
| if (suffixes == null) { |
| return null; |
| } |
| return Joiner.on(".").skipNulls().join(suffixes); |
| } |
| |
| /** |
| * Match input address to local address. |
| * Return true if it matches, false otherwsie. |
| */ |
| public static boolean isAddressLocal(InetSocketAddress addr) { |
| return NetUtils.isLocalAddress(addr.getAddress()); |
| } |
| |
| /** |
| * Get the conf key value appended with serviceId and nodeId. |
| * @param conf |
| * @param confKey |
| * @param omServiceID |
| * @param omNodeId |
| * @return conf value. |
| */ |
| public static String getConfSuffixedWithServiceId(ConfigurationSource conf, |
| String confKey, String omServiceID, String omNodeId) { |
| String suffixedConfKey = ConfUtils.addKeySuffixes( |
| confKey, omServiceID, omNodeId); |
| String confValue = conf.getTrimmed(suffixedConfKey); |
| if (StringUtils.isNotEmpty(confValue)) { |
| return confValue; |
| } |
| return null; |
| } |
| |
| /** |
| * Set Node Specific config keys to generic config keys. |
| * @param nodeSpecificConfigKeys |
| * @param ozoneConfiguration |
| * @param serviceId |
| * @param nodeId |
| */ |
| public static void setNodeSpecificConfigs( |
| String[] nodeSpecificConfigKeys, OzoneConfiguration ozoneConfiguration, |
| String serviceId, String nodeId, Logger logger) { |
| for (String confKey : nodeSpecificConfigKeys) { |
| String confValue = getConfSuffixedWithServiceId( |
| ozoneConfiguration, confKey, serviceId, nodeId); |
| if (confValue != null) { |
| logger.info("Setting configuration key {} with value of key {}: {}", |
| confKey, ConfUtils.addKeySuffixes(confKey, serviceId, nodeId), |
| confValue); |
| ozoneConfiguration.set(confKey, confValue); |
| } |
| } |
| } |
| } |