content: /**
   * 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.aries.blueprint.utils;
  
  import java.util.Dictionary;
  import java.util.Enumeration;
  import java.util.Hashtable;
  
  import org.osgi.framework.Bundle;
  import org.osgi.framework.Constants;
  import org.osgi.framework.ServiceReference;
  import org.osgi.framework.Version;
  
  /**
   * @version $Rev$ $Date$
   */
  public final class JavaUtils {
  
      private JavaUtils() {
      }
  
      public static void copy(Dictionary destination, Dictionary source) {
          Enumeration e = source.keys();
          while (e.hasMoreElements()) {
              Object key = e.nextElement();
              Object value = source.get(key);
              destination.put(key, value);
          }
      }
  
      public static Hashtable getProperties(ServiceReference ref) {
          Hashtable props = new Hashtable();
          for (String key : ref.getPropertyKeys()) {
              props.put(key, ref.getProperty(key));
          }
          return props;
      }
  
      public static Version getBundleVersion(Bundle bundle) {
          Dictionary headers = bundle.getHeaders();
          String version = (String) headers.get(Constants.BUNDLE_VERSION);
          return (version != null) ? Version.parseVersion(version) : Version.emptyVersion;
      }
  
  }
  