opendaylight/config/config-manager/src/main/java/org/opendaylight/controller/config/manager/impl/util/LookupBeansUtil.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 package org.opendaylight.controller.config.manager.impl.util;
   9
  10 import java.util.Set;
  11
  12 import javax.management.InstanceNotFoundException;
  13 import javax.management.ObjectName;
  14
  15 import org.opendaylight.controller.config.api.LookupRegistry;
  16
  17 public class LookupBeansUtil {
  18
  19     private LookupBeansUtil() {
  20     }
  21
  22     public static ObjectName lookupConfigBean(LookupRegistry lookupRegistry,
  23             String moduleName, String instanceName)
  24             throws InstanceNotFoundException {
  25         Set<ObjectName> objectNames = lookupRegistry.lookupConfigBeans(
  26                 moduleName, instanceName);
  27         if (objectNames.isEmpty()) {
  28             throw new InstanceNotFoundException("No instance found");
  29         } else if (objectNames.size() > 1) {
  30             throw new InstanceNotFoundException("Too many instances found");
  31         }
  32         return objectNames.iterator().next();
  33     }
  34
  35 }