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     public static ObjectName lookupConfigBean(LookupRegistry lookupRegistry,
  20             String moduleName, String instanceName)
  21             throws InstanceNotFoundException {
  22         Set<ObjectName> objectNames = lookupRegistry.lookupConfigBeans(
  23                 moduleName, instanceName);
  24         if (objectNames.size() == 0) {
  25             throw new InstanceNotFoundException("No instance found");
  26         } else if (objectNames.size() > 1) {
  27             throw new InstanceNotFoundException("Too many instances found");
  28         }
  29         return objectNames.iterator().next();
  30     }
  31
  32 }