| /* |
| * 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.webconsole.karaf.feature; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.url.URLConstants; |
| import org.osgi.service.url.URLStreamHandlerService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Utility class to work with feature related tasks. |
| */ |
| public class FeatureUtil { |
| |
| private static Logger logger = LoggerFactory.getLogger(FeatureUtil.class); |
| |
| public static Set<String> getAllowedProtocols(BundleContext context) { |
| Set<String> protocols = new HashSet<String>(); |
| |
| try { |
| ServiceReference[] references = context.getAllServiceReferences(URLStreamHandlerService.class.getName(), |
| "(!(" + URLConstants.URL_HANDLER_PROTOCOL + "=*))"); |
| for (ServiceReference reference : references) { |
| Object property = reference.getProperty(URLConstants.URL_HANDLER_PROTOCOL); |
| if (property != null) { |
| protocols.add((String) property); |
| } |
| } |
| } catch (InvalidSyntaxException e) { |
| logger.error("Exception during scanning the services", e); |
| } |
| |
| return protocols; |
| } |
| |
| } |