netconf/netconf-util/src/main/java/org/opendaylight/netconf/util/osgi/NetconfConfigUtil.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netconf.util.osgi;
  10
  11 import java.util.Collection;
  12 import org.osgi.framework.BundleContext;
  13 import org.osgi.framework.InvalidSyntaxException;
  14 import org.osgi.framework.ServiceReference;
  15 import org.osgi.service.cm.ManagedService;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 public final class NetconfConfigUtil {
  20     private static final Logger LOG = LoggerFactory.getLogger(NetconfConfigUtil.class);
  21
  22     private NetconfConfigUtil() {
  23         throw new AssertionError("Utility class should not be instantiated");
  24     }
  25
  26     public static NetconfConfiguration getNetconfConfigurationService(BundleContext bundleContext)
  27             throws InvalidSyntaxException {
  28         LOG.debug("Trying to retrieve netconf configuration service");
  29         final Collection<ServiceReference<ManagedService>> serviceReferences
  30                 = bundleContext.getServiceReferences(ManagedService.class, null);
  31         for (final ServiceReference<ManagedService> serviceReference : serviceReferences) {
  32             ManagedService service = bundleContext.getService(serviceReference);
  33             if (service instanceof NetconfConfiguration) {
  34                 LOG.debug("Netconf configuration service found");
  35                 return (NetconfConfiguration) service;
  36             }
  37         }
  38
  39         throw new IllegalStateException("Netconf configuration service not found");
  40     }
  41 }