| /* |
| * 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.karaf.profile.impl; |
| |
| import java.util.Map; |
| |
| import org.apache.karaf.profile.PlaceholderResolver; |
| import org.osgi.framework.BundleContext; |
| |
| public final class PlaceholderResolvers { |
| |
| private PlaceholderResolvers() { } |
| |
| public static class ProfilePlaceholderResolver implements PlaceholderResolver { |
| |
| public final String SCHEME = "profile"; |
| |
| @Override |
| public String getScheme() { |
| return SCHEME; |
| } |
| |
| @Override |
| public String resolve(Map<String, Map<String, String>> profile, String pid, String key, String value) { |
| int index = value.indexOf("/"); |
| if (index >= 0) { |
| String propertyPid = value.substring(0, index); |
| String propertyKey = value.substring(index + 1); |
| Map<String, String> props = profile.get(propertyPid); |
| if (props != null && props.containsKey(propertyKey)) { |
| Object v = props.get(propertyKey); |
| return v.toString(); |
| } |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * Substitute a placeholder with profile:[property file]/[key], with the target value. |
| * |
| * @param key The key in the configuration. |
| * @param configs A {@link Map} of configurations where to perform the substitution. |
| * @return The target value or the key as is. |
| */ |
| public static String substituteProfileProperty(String key, Map<String, Map<String, String>> configs) { |
| String pid = key.substring("profile:".length(), key.indexOf("/")); |
| String propertyKey = key.substring(key.indexOf("/") + 1); |
| Map<String, String> targetProps = configs.get(pid); |
| if (targetProps != null && targetProps.containsKey(propertyKey)) { |
| return targetProps.get(propertyKey); |
| } else { |
| return key; |
| } |
| } |
| |
| /** |
| * Substitutes bundle property. |
| * |
| * @param key The key in the configuration. |
| * @param bundleContext The bundle context to use. |
| * @return The target value or an empty String. |
| */ |
| public static String substituteBundleProperty(String key, BundleContext bundleContext) { |
| String value = null; |
| if (bundleContext != null) { |
| value = bundleContext.getProperty(key); |
| } |
| if (value == null) { |
| value = System.getProperty(key); |
| } |
| return value != null ? value : ""; |
| } |
| |
| } |