| /* |
| * 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 com.opensymphony.xwork2.config; |
| |
| import com.opensymphony.xwork2.config.entities.PackageConfig; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.StringTokenizer; |
| |
| /** |
| * ConfigurationUtil |
| * |
| * @author Jason Carreira Created May 23, 2003 11:22:49 PM |
| */ |
| public class ConfigurationUtil { |
| |
| private static final Logger LOG = LogManager.getLogger(ConfigurationUtil.class); |
| |
| private ConfigurationUtil() { |
| } |
| |
| /** |
| * Get the {@link PackageConfig} elements with the specified names. |
| * @param configuration Configuration from which to find the package elements |
| * @param parent Comma separated list of parent package names |
| * @return The package elements that correspond to the names in the {@code parent} parameter. |
| */ |
| public static List<PackageConfig> buildParentsFromString(Configuration configuration, String parent) { |
| List<String> parentPackageNames = buildParentListFromString(parent); |
| List<PackageConfig> parentPackageConfigs = new ArrayList<>(); |
| for (String parentPackageName : parentPackageNames) { |
| PackageConfig parentPackageContext = configuration.getPackageConfig(parentPackageName); |
| |
| if (parentPackageContext != null) { |
| parentPackageConfigs.add(parentPackageContext); |
| } |
| } |
| |
| return parentPackageConfigs; |
| } |
| |
| /** |
| * Splits the string into a list using a comma as the token separator. |
| * @param parent The comma separated string. |
| * @return A list of tokens from the specified string. |
| */ |
| public static List<String> buildParentListFromString(String parent) { |
| if (StringUtils.isEmpty(parent)) { |
| return Collections.emptyList(); |
| } |
| |
| StringTokenizer tokenizer = new StringTokenizer(parent, ","); |
| List<String> parents = new ArrayList<>(); |
| |
| while (tokenizer.hasMoreTokens()) { |
| String parentName = tokenizer.nextToken().trim(); |
| |
| if (StringUtils.isNotEmpty(parentName)) { |
| parents.add(parentName); |
| } |
| } |
| |
| return parents; |
| } |
| } |