binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/BindingMountPointAdapter.java

   1 /*
   2  * Copyright (c) 2015 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.mdsal.binding.dom.adapter;
   9
  10 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
  11 import org.opendaylight.mdsal.dom.api.DOMService;
  12
  13 import org.opendaylight.mdsal.binding.api.BindingService;
  14 import org.opendaylight.mdsal.binding.api.MountPoint;
  15 import com.google.common.base.Optional;
  16 import com.google.common.cache.CacheBuilder;
  17 import com.google.common.cache.LoadingCache;
  18 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  19
  20 public class BindingMountPointAdapter implements MountPoint {
  21
  22     private final InstanceIdentifier<?> identifier;
  23     private LoadingCache<Class<? extends BindingService>, Optional<BindingService>> services;
  24
  25     public BindingMountPointAdapter(final BindingToNormalizedNodeCodec codec, final DOMMountPoint domMountPoint) {
  26         identifier = codec.getCodecRegistry().fromYangInstanceIdentifier(domMountPoint.getIdentifier());
  27         services = CacheBuilder.newBuilder().build(new BindingDOMAdapterLoader(codec) {
  28
  29             @Override
  30             protected DOMService getDelegate(Class<? extends DOMService> reqDeleg) {
  31                 return domMountPoint.getService(reqDeleg).orNull();
  32             }
  33         });
  34     }
  35
  36     @Override
  37     public InstanceIdentifier<?> getIdentifier() {
  38         return identifier;
  39     }
  40
  41     @Override
  42     public <T extends BindingService> Optional<T> getService(Class<T> service) {
  43         Optional<BindingService> potential = services.getUnchecked(service);
  44         if(potential.isPresent()) {
  45             return Optional.of(service.cast(potential.get()));
  46         }
  47         return Optional.absent();
  48     }
  49
  50 }