opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/BindingDOMMountPointServiceAdapter.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.controller.md.sal.binding.impl;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import com.google.common.base.Optional;
  12 import com.google.common.cache.CacheBuilder;
  13 import com.google.common.cache.CacheLoader;
  14 import com.google.common.cache.LoadingCache;
  15 import org.opendaylight.controller.md.sal.binding.api.MountPoint;
  16 import org.opendaylight.controller.md.sal.binding.api.MountPointService;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 public class BindingDOMMountPointServiceAdapter implements MountPointService {
  26     private static final Logger LOG = LoggerFactory.getLogger(BindingDOMMountPointServiceAdapter.class);
  27
  28     private final BindingToNormalizedNodeCodec codec;
  29     private final DOMMountPointService mountService;
  30     @VisibleForTesting
  31     final LoadingCache<DOMMountPoint, BindingMountPointAdapter> bindingMountpoints = CacheBuilder.newBuilder()
  32             .weakKeys().weakValues().build(new CacheLoader<DOMMountPoint, BindingMountPointAdapter>() {
  33                 @Override
  34                 public BindingMountPointAdapter load(final DOMMountPoint key) {
  35                     return new BindingMountPointAdapter(codec, key);
  36                 }
  37             });
  38
  39     public BindingDOMMountPointServiceAdapter(final DOMMountPointService mountService,
  40             final BindingToNormalizedNodeCodec codec) {
  41         this.codec = codec;
  42         this.mountService = mountService;
  43     }
  44
  45     @Override
  46     public Optional<MountPoint> getMountPoint(final InstanceIdentifier<?> mountPoint) {
  47
  48         YangInstanceIdentifier domPath = codec.toYangInstanceIdentifierBlocking(mountPoint);
  49         Optional<DOMMountPoint> domMount = mountService.getMountPoint(domPath);
  50         if (domMount.isPresent()) {
  51             return Optional.<MountPoint>fromNullable(bindingMountpoints.getUnchecked(domMount.get()));
  52         }
  53         return Optional.absent();
  54     }
  55
  56     @Override
  57     public <T extends MountPointListener> ListenerRegistration<T> registerListener(final InstanceIdentifier<?> path,
  58             final T listener) {
  59         return new BindingDOMMountPointListenerAdapter<>(listener, codec, mountService);
  60     }
  61 }