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

   1 /*
   2  * Copyright (c) 2014 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 com.google.common.base.Optional;
  11 import java.util.HashMap;
  12 import java.util.HashSet;
  13 import java.util.Map;
  14 import java.util.Map.Entry;
  15 import java.util.Set;
  16 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  17 import org.opendaylight.yangtools.concepts.Delegator;
  18 import org.opendaylight.yangtools.yang.binding.DataObject;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  22 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 public abstract class AbstractForwardedDataBroker implements Delegator<DOMDataBroker>, AutoCloseable {
  27
  28     private static final Logger LOG = LoggerFactory.getLogger(AbstractForwardedDataBroker.class);
  29     // The Broker to whom we do all forwarding
  30     private final DOMDataBroker domDataBroker;
  31
  32     private final BindingToNormalizedNodeCodec codec;
  33
  34     protected AbstractForwardedDataBroker(final DOMDataBroker domDataBroker, final BindingToNormalizedNodeCodec codec) {
  35         this.domDataBroker = domDataBroker;
  36         this.codec = codec;
  37     }
  38
  39     protected BindingToNormalizedNodeCodec getCodec() {
  40         return codec;
  41     }
  42
  43     @Override
  44     public DOMDataBroker getDelegate() {
  45         return domDataBroker;
  46     }
  47
  48     protected Map<InstanceIdentifier<?>, DataObject> toBinding(final InstanceIdentifier<?> path,
  49             final Map<YangInstanceIdentifier, ? extends NormalizedNode<?, ?>> normalized) {
  50         final Map<InstanceIdentifier<?>, DataObject> newMap = new HashMap<>();
  51
  52         for (final Map.Entry<YangInstanceIdentifier, ? extends NormalizedNode<?, ?>> entry : normalized.entrySet()) {
  53             try {
  54                 final Optional<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> potential
  55                         = getCodec().toBinding(entry);
  56                 if (potential.isPresent()) {
  57                     final Entry<InstanceIdentifier<? extends DataObject>, DataObject> binding = potential.get();
  58                     newMap.put(binding.getKey(), binding.getValue());
  59                 }
  60             } catch (final DeserializationException e) {
  61                 LOG.warn("Failed to transform {}, omitting it", entry, e);
  62             }
  63         }
  64         return newMap;
  65     }
  66
  67     protected Set<InstanceIdentifier<?>> toBinding(final InstanceIdentifier<?> path,
  68             final Set<YangInstanceIdentifier> normalized) {
  69         final Set<InstanceIdentifier<?>> hashSet = new HashSet<>();
  70         for (final YangInstanceIdentifier normalizedPath : normalized) {
  71             try {
  72                 final Optional<InstanceIdentifier<? extends DataObject>> potential
  73                         = getCodec().toBinding(normalizedPath);
  74                 if (potential.isPresent()) {
  75                     final InstanceIdentifier<? extends DataObject> binding = potential.get();
  76                     hashSet.add(binding);
  77                 } else if (normalizedPath.getLastPathArgument()
  78                         instanceof YangInstanceIdentifier.AugmentationIdentifier) {
  79                     hashSet.add(path);
  80                 }
  81             } catch (final DeserializationException e) {
  82                 LOG.warn("Failed to transform {}, omitting it", normalizedPath, e);
  83             }
  84         }
  85         return hashSet;
  86     }
  87
  88     protected Optional<DataObject> toBindingData(final InstanceIdentifier<?> path, final NormalizedNode<?, ?> data) {
  89         if (path.isWildcarded()) {
  90             return Optional.absent();
  91         }
  92         return (Optional<DataObject>) getCodec().deserializeFunction(path).apply(
  93                 Optional.<NormalizedNode<?, ?>>of(data));
  94     }
  95
  96     @Override
  97     public void close() {
  98         // Intentional NOOP
  99     }
 100
 101 }