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