| /** |
| * 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.cxf.dosgi.discovery.local.util; |
| |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| |
| import javax.xml.transform.OutputKeys; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.remoteserviceadmin.EndpointDescription; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public final class Utils { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(Utils.class); |
| |
| private Utils() { |
| // prevent instantiation |
| } |
| |
| public static List<String> getStringPlusProperty(ServiceReference<?> sr, String key) { |
| Object value = sr.getProperty(key); |
| if (value == null) { |
| return Collections.emptyList(); |
| } |
| |
| if (value instanceof String) { |
| return Collections.singletonList((String) value); |
| } |
| |
| if (value instanceof String[]) { |
| String[] values = (String[]) value; |
| List<String> result = new ArrayList<String>(values.length); |
| for (String v : values) { |
| if (v != null) { |
| result.add(v); |
| } |
| } |
| return Collections.unmodifiableList(result); |
| } |
| |
| if (value instanceof Collection<?>) { |
| Collection<?> values = (Collection<?>) value; |
| List<String> result = new ArrayList<String>(values.size()); |
| for (Object v : values) { |
| if (v instanceof String) { |
| result.add((String) v); |
| } |
| } |
| return Collections.unmodifiableList(result); |
| } |
| |
| return Collections.emptyList(); |
| } |
| |
| public static boolean matchFilter(BundleContext bctx, String filter, EndpointDescription endpoint) { |
| if (filter == null) { |
| return false; |
| } |
| |
| try { |
| Filter f = bctx.createFilter(filter); |
| Dictionary<String, Object> dict = new Hashtable<String, Object>(endpoint.getProperties()); |
| return f.match(dict); |
| } catch (Exception e) { |
| LOG.error("Problem creating a Filter from " + filter, e); |
| return false; |
| } |
| } |
| |
| public static String normXML(String s) { |
| String s2 = stripComment(s); |
| String s3 = stripProlog(s2); |
| try { |
| TransformerFactory transFactory = TransformerFactory.newInstance(); |
| Transformer transformer = transFactory.newTransformer(); |
| StringWriter buffer = new StringWriter(); |
| transformer.setOutputProperty(OutputKeys.INDENT, "yes"); |
| transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); |
| transformer.transform(new StreamSource(new StringReader(s3)), new StreamResult(buffer)); |
| return buffer.toString(); |
| } catch (Exception e) { |
| return ""; |
| } |
| } |
| |
| private static String stripComment(String s) { |
| return Pattern.compile("<!--(.*?)-->", Pattern.DOTALL).matcher(s).replaceAll(""); |
| } |
| |
| private static String stripProlog(String s) { |
| return s.replaceAll("<\\?(.*?)\\?>", ""); |
| } |
| } |