| /* |
| * 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.slider.common.params; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.slider.core.exceptions.BadCommandArgumentsException; |
| import org.apache.slider.core.exceptions.ErrorStrings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Static argument manipulation operations |
| */ |
| public class ArgOps { |
| |
| private static final Logger |
| log = LoggerFactory.getLogger(ArgOps.class); |
| |
| /** |
| * create a 3-tuple |
| */ |
| public static List<Object> triple(String msg, int min, int max) { |
| List<Object> l = new ArrayList<>(3); |
| l.add(msg); |
| l.add(min); |
| l.add(max); |
| return l; |
| } |
| |
| public static void applyFileSystemBinding(String filesystemBinding, |
| Configuration conf) { |
| if (filesystemBinding != null) { |
| //filesystem argument was set -this overwrites any defaults in the |
| //configuration |
| FileSystem.setDefaultUri(conf, filesystemBinding); |
| } |
| } |
| |
| public static void splitPairs(Collection<String> pairs, |
| Map<String, String> dest) { |
| for (String prop : pairs) { |
| String[] keyval = prop.split("=", 2); |
| if (keyval.length == 2) { |
| dest.put(keyval[0], keyval[1]); |
| } |
| } |
| } |
| |
| |
| public static void applyDefinitions(Map<String, String> definitionMap, |
| Configuration conf) { |
| for (Map.Entry<String, String> entry : definitionMap.entrySet()) { |
| String key = entry.getKey(); |
| String val = entry.getValue(); |
| log.debug("configuration[{}]<=\"{}\"", key, val); |
| conf.set(key, val, "command line"); |
| } |
| } |
| |
| /** |
| * Create a map from a tuple list like ['worker','2','master','1] into a map |
| * ['worker':'2',"master":'1']; |
| * Duplicate entries also trigger errors |
| * @param description description for errors |
| * @param list list to conver to tuples |
| * @return the map of key value pairs -unordered. |
| * @throws BadCommandArgumentsException odd #of arguments received |
| */ |
| public static Map<String, String> convertTupleListToMap(String description, |
| List<String> list) throws |
| BadCommandArgumentsException { |
| Map<String, String> results = new HashMap<>(); |
| if (list != null && !list.isEmpty()) { |
| int size = list.size(); |
| if (size % 2 != 0) { |
| //odd number of elements, not permitted |
| throw new BadCommandArgumentsException( |
| ErrorStrings.ERROR_PARSE_FAILURE + description); |
| } |
| for (int count = 0; count < size; count += 2) { |
| String key = list.get(count); |
| String val = list.get(count + 1); |
| if (results.get(key) != null) { |
| throw new BadCommandArgumentsException( |
| ErrorStrings.ERROR_DUPLICATE_ENTRY + description |
| + ": " + key); |
| } |
| results.put(key, val); |
| } |
| } |
| return results; |
| } |
| |
| /** |
| * Create a map from a tuple list like |
| * ['worker','heapsize','5G','master','heapsize','2M'] into a map |
| * ['worker':'2',"master":'1']; |
| * Duplicate entries also trigger errors |
| |
| * @throws BadCommandArgumentsException odd #of arguments received |
| */ |
| public static Map<String, Map<String, String>> convertTripleListToMaps(String description, |
| List<String> list) throws BadCommandArgumentsException { |
| |
| Map<String, Map<String, String>> results = new HashMap<>(); |
| if (list != null && !list.isEmpty()) { |
| int size = list.size(); |
| if (size % 3 != 0) { |
| //wrong number of elements, not permitted |
| throw new BadCommandArgumentsException( |
| ErrorStrings.ERROR_PARSE_FAILURE + description); |
| } |
| for (int count = 0; count < size; count += 3) { |
| String role = list.get(count); |
| String key = list.get(count + 1); |
| String val = list.get(count + 2); |
| Map<String, String> roleMap = results.get(role); |
| if (roleMap == null) { |
| //demand create new role map |
| roleMap = new HashMap<>(); |
| results.put(role, roleMap); |
| } |
| if (roleMap.get(key) != null) { |
| throw new BadCommandArgumentsException( |
| ErrorStrings.ERROR_DUPLICATE_ENTRY + description |
| + ": for key " + key + " under " + role); |
| } |
| roleMap.put(key, val); |
| } |
| } |
| return results; |
| } |
| } |