binding2/mdsal-binding2-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/adapter/impl/mountpoint/BindingDOMMountPointServiceAdapter.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. 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.javav2.dom.adapter.impl.mountpoint;
   9
  10 import com.google.common.annotations.Beta;
  11 import com.google.common.cache.CacheBuilder;
  12 import com.google.common.cache.CacheLoader;
  13 import com.google.common.cache.LoadingCache;
  14 import java.util.Optional;
  15 import javax.annotation.Nonnull;
  16 import org.opendaylight.mdsal.binding.javav2.api.MountPoint;
  17 import org.opendaylight.mdsal.binding.javav2.api.MountPointListener;
  18 import org.opendaylight.mdsal.binding.javav2.api.MountPointService;
  19 import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.BindingToNormalizedNodeCodec;
  20 import org.opendaylight.mdsal.binding.javav2.spec.base.InstanceIdentifier;
  21 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
  22 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  23 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * Mount point service adapter.
  30  */
  31 @Beta
  32 public class BindingDOMMountPointServiceAdapter implements MountPointService {
  33
  34     public static final Logger LOG = LoggerFactory.getLogger(BindingDOMMountPointServiceAdapter.class);
  35
  36     private final BindingToNormalizedNodeCodec codec;
  37     private final DOMMountPointService mountService;
  38     private final LoadingCache<DOMMountPoint, BindingMountPointAdapter> bindingMountpoints =
  39             CacheBuilder.newBuilder().weakKeys().build(new CacheLoader<DOMMountPoint, BindingMountPointAdapter>() {
  40
  41                 @Nonnull
  42                 @Override
  43                 public BindingMountPointAdapter load(@Nonnull final DOMMountPoint key) throws Exception {
  44                     return new BindingMountPointAdapter(codec, key);
  45                 }
  46             });
  47
  48     public BindingDOMMountPointServiceAdapter(final DOMMountPointService mountService,
  49             final BindingToNormalizedNodeCodec codec) {
  50         this.codec = codec;
  51         this.mountService = mountService;
  52     }
  53
  54     @Override
  55     public Optional<MountPoint> getMountPoint(final InstanceIdentifier<?> mountPoint) {
  56
  57         final YangInstanceIdentifier domPath = codec.toYangInstanceIdentifierBlocking(mountPoint);
  58         final Optional<DOMMountPoint> domMount = mountService.getMountPoint(domPath);
  59         if (domMount.isPresent()) {
  60             return Optional.ofNullable(bindingMountpoints.getUnchecked(domMount.get()));
  61         }
  62         return Optional.empty();
  63     }
  64
  65     @Override
  66     public <T extends MountPointListener> ListenerRegistration<T> registerListener(final InstanceIdentifier<?> path,
  67             final T listener) {
  68         return new BindingDOMMountPointListenerAdapter<>(listener, codec, mountService);
  69     }
  70
  71 }