X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-binding-broker%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fmd%2Fsal%2Fbinding%2Fimpl%2FBindingToNormalizedNodeCodec.java;h=1e2d2b17f0b1846ab9272f6683f2a0f00cd1c070;hp=b4b9e314bee385fcd5b092b937edb2c9a1e0b86a;hb=51e91f6bdcc88c5aa96f956e516d31dbb5e5d5e0;hpb=cf1a8da1f3ee11170ce05611d85d15b1aceed8e8

diff --git a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/BindingToNormalizedNodeCodec.java b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/BindingToNormalizedNodeCodec.java
index b4b9e314be..1e2d2b17f0 100644
--- a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/BindingToNormalizedNodeCodec.java
+++ b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/BindingToNormalizedNodeCodec.java
@@ -7,110 +7,60 @@
  */
 package org.opendaylight.controller.md.sal.binding.impl;
 
-import java.lang.reflect.Method;
+import com.google.common.base.Function;
+import com.google.common.base.Optional;
 import java.util.AbstractMap.SimpleEntry;
-import java.util.Collection;
-import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Map.Entry;
-import java.util.Set;
-
-import javax.annotation.Nullable;
-
 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationException;
 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationOperation;
 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizer;
-import org.opendaylight.yangtools.yang.binding.Augmentation;
-import org.opendaylight.yangtools.yang.binding.BindingMapping;
+import org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry;
+import org.opendaylight.yangtools.sal.binding.generator.impl.GeneratedClassLoadingStrategy;
+import org.opendaylight.yangtools.sal.binding.generator.util.BindingRuntimeContext;
 import org.opendaylight.yangtools.yang.binding.DataObject;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
-import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.common.QNameModule;
-import org.opendaylight.yangtools.yang.data.api.CompositeNode;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.AugmentationIdentifier;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifier;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.data.impl.codec.BindingIndependentMappingService;
 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
-import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
-import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
-import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.base.Function;
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import com.google.common.base.Predicate;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
-
-public class BindingToNormalizedNodeCodec implements SchemaContextListener {
+public class BindingToNormalizedNodeCodec implements SchemaContextListener,AutoCloseable {
 
     private static final Logger LOG = LoggerFactory.getLogger(BindingToNormalizedNodeCodec.class);
 
     private final BindingIndependentMappingService bindingToLegacy;
+    private final BindingNormalizedNodeCodecRegistry codecRegistry;
     private DataNormalizer legacyToNormalized;
+    private final GeneratedClassLoadingStrategy classLoadingStrategy;
 
-    public BindingToNormalizedNodeCodec(final BindingIndependentMappingService mappingService) {
+    public BindingToNormalizedNodeCodec(final GeneratedClassLoadingStrategy classLoadingStrategy, final BindingIndependentMappingService mappingService, final BindingNormalizedNodeCodecRegistry codecRegistry) {
         super();
         this.bindingToLegacy = mappingService;
+        this.classLoadingStrategy = classLoadingStrategy;
+        this.codecRegistry = codecRegistry;
+
     }
 
-    public org.opendaylight.yangtools.yang.data.api.InstanceIdentifier toNormalized(
+    public org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier toNormalized(
             final InstanceIdentifier<? extends DataObject> binding) {
-
-        // Used instance-identifier codec do not support serialization of last
-        // path
-        // argument if it is Augmentation (behaviour expected by old datastore)
-        // in this case, we explicitly check if last argument is augmentation
-        // to process it separately
-        if (isAugmentationIdentifier(binding)) {
-            return toNormalizedAugmented(binding);
-        }
-        return toNormalizedImpl(binding);
+        return codecRegistry.toYangInstanceIdentifier(binding);
     }
 
-    public Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> toNormalizedNode(
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public Entry<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier, NormalizedNode<?, ?>> toNormalizedNode(
             final InstanceIdentifier<? extends DataObject> bindingPath, final DataObject bindingObject) {
-        return toNormalizedNode(toBindingEntry(bindingPath, bindingObject));
+        return codecRegistry.toNormalizedNode((InstanceIdentifier) bindingPath, bindingObject);
 
     }
 
-    public Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> toNormalizedNode(
+    public Entry<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier, NormalizedNode<?, ?>> toNormalizedNode(
             final Entry<org.opendaylight.yangtools.yang.binding.InstanceIdentifier<? extends DataObject>, DataObject> binding) {
-        Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, CompositeNode> legacyEntry = bindingToLegacy
-                .toDataDom(binding);
-        Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> normalizedEntry = legacyToNormalized
-                .toNormalized(legacyEntry);
-        LOG.trace("Serialization of {}, Legacy Representation: {}, Normalized Representation: {}", binding,
-                legacyEntry, normalizedEntry);
-        if (isAugmentation(binding.getKey().getTargetType())) {
-
-            for (DataContainerChild<? extends PathArgument, ?> child : ((DataContainerNode<?>) normalizedEntry
-                    .getValue()).getValue()) {
-                if (child instanceof AugmentationNode) {
-                    ImmutableList<PathArgument> childArgs = ImmutableList.<PathArgument> builder()
-                            .addAll(normalizedEntry.getKey().getPathArguments()).add(child.getIdentifier()).build();
-                    org.opendaylight.yangtools.yang.data.api.InstanceIdentifier childPath = org.opendaylight.yangtools.yang.data.api.InstanceIdentifier
-                            .create(childArgs);
-                    return toDOMEntry(childPath, child);
-                }
-            }
-
-        }
-        return normalizedEntry;
-
+        return toNormalizedNode(binding.getKey(),binding.getValue());
     }
 
     /**
@@ -123,111 +73,15 @@ public class BindingToNormalizedNodeCodec implements SchemaContextListener {
      *
      */
     public Optional<InstanceIdentifier<? extends DataObject>> toBinding(
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized)
-                    throws DeserializationException {
-
-        PathArgument lastArgument = Iterables.getLast(normalized.getPathArguments());
-        // Used instance-identifier codec do not support serialization of last
-        // path
-        // argument if it is AugmentationIdentifier (behaviour expected by old
-        // datastore)
-        // in this case, we explicitly check if last argument is augmentation
-        // to process it separately
-        if (lastArgument instanceof AugmentationIdentifier) {
-            return toBindingAugmented(normalized);
-        }
-        return toBindingImpl(normalized);
-    }
-
-    private Optional<InstanceIdentifier<? extends DataObject>> toBindingAugmented(
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized)
-                    throws DeserializationException {
-        Optional<InstanceIdentifier<? extends DataObject>> potential = toBindingImpl(normalized);
-        // Shorthand check, if codec already supports deserialization
-        // of AugmentationIdentifier we will return
-        if (potential.isPresent() && isAugmentationIdentifier(potential.get())) {
-            return potential;
-        }
-
-        int normalizedCount = getAugmentationCount(normalized);
-        AugmentationIdentifier lastArgument = (AugmentationIdentifier) Iterables.getLast(normalized.getPathArguments());
-
-        // Here we employ small trick - Binding-aware Codec injects an pointer
-        // to augmentation class
-        // if child is referenced - so we will reference child and then shorten
-        // path.
-        LOG.trace("Looking for candidates to match {}", normalized);
-        for (QName child : lastArgument.getPossibleChildNames()) {
-            org.opendaylight.yangtools.yang.data.api.InstanceIdentifier childPath = normalized.node(child);
-            try {
-                if (isNotRepresentable(childPath)) {
-                    LOG.trace("Path {} is not BI-representable, skipping it", childPath);
-                    continue;
-                }
-            } catch (DataNormalizationException e) {
-                LOG.warn("Failed to denormalize path {}, skipping it", childPath, e);
-                continue;
-            }
-
-            Optional<InstanceIdentifier<? extends DataObject>> baId = toBindingImpl(childPath);
-            if (!baId.isPresent()) {
-                LOG.debug("No binding-aware identifier found for path {}, skipping it", childPath);
-                continue;
-            }
-
-            InstanceIdentifier<? extends DataObject> potentialPath = shortenToLastAugment(baId.get());
-            int potentialAugmentCount = getAugmentationCount(potentialPath);
-            if (potentialAugmentCount == normalizedCount) {
-                LOG.trace("Found matching path {}", potentialPath);
-                return Optional.<InstanceIdentifier<? extends DataObject>> of(potentialPath);
-            }
-
-            LOG.trace("Skipping mis-matched potential path {}", potentialPath);
-        }
-
-        LOG.trace("Failed to find augmentation matching {}", normalized);
-        return Optional.absent();
-    }
-
-    private Optional<InstanceIdentifier<? extends DataObject>> toBindingImpl(
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized)
+            final org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier normalized)
                     throws DeserializationException {
-        org.opendaylight.yangtools.yang.data.api.InstanceIdentifier legacyPath;
-
         try {
-            if (isNotRepresentable(normalized)) {
-                return Optional.absent();
-            }
-            legacyPath = legacyToNormalized.toLegacy(normalized);
-        } catch (DataNormalizationException e) {
-            throw new IllegalStateException("Could not denormalize path.", e);
-        }
-        LOG.trace("InstanceIdentifier Path Deserialization: Legacy representation {}, Normalized representation: {}",
-                legacyPath, normalized);
-        return Optional.<InstanceIdentifier<? extends DataObject>> of(bindingToLegacy.fromDataDom(legacyPath));
-    }
-
-    private boolean isNotRepresentable(final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized)
-            throws DataNormalizationException {
-        DataNormalizationOperation<?> op = findNormalizationOperation(normalized);
-        if (op.isMixin() && op.getIdentifier() instanceof NodeIdentifier) {
-            return true;
-        }
-        if (op.isLeaf()) {
-            return true;
+            return  Optional.<InstanceIdentifier<? extends DataObject>>of(codecRegistry.fromYangInstanceIdentifier(normalized));
+        } catch (IllegalArgumentException e) {
+            return Optional.absent();
         }
-        return false;
     }
 
-    private DataNormalizationOperation<?> findNormalizationOperation(
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized)
-                    throws DataNormalizationException {
-        DataNormalizationOperation<?> current = legacyToNormalized.getRootOperation();
-        for (PathArgument arg : normalized.getPathArguments()) {
-            current = current.getChild(arg);
-        }
-        return current;
-    }
 
     private static final Entry<org.opendaylight.yangtools.yang.binding.InstanceIdentifier<? extends DataObject>, DataObject> toBindingEntry(
             final org.opendaylight.yangtools.yang.binding.InstanceIdentifier<? extends DataObject> key,
@@ -236,45 +90,19 @@ public class BindingToNormalizedNodeCodec implements SchemaContextListener {
                 key, value);
     }
 
-    private static final Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>> toDOMEntry(
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier key, final NormalizedNode<?, ?> value) {
-        return new SimpleEntry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, NormalizedNode<?, ?>>(key,
-                value);
-    }
-
-    public DataObject toBinding(final InstanceIdentifier<?> path, final NormalizedNode<?, ?> normalizedNode)
-            throws DeserializationException {
-        CompositeNode legacy = null;
-        if (isAugmentationIdentifier(path) && normalizedNode instanceof AugmentationNode) {
-            QName augIdentifier = BindingReflections.findQName(path.getTargetType());
-            ContainerNode virtualNode = Builders.containerBuilder() //
-                    .withNodeIdentifier(new NodeIdentifier(augIdentifier)) //
-                    .withChild((DataContainerChild<?, ?>) normalizedNode) //
-                    .build();
-            legacy = (CompositeNode) DataNormalizer.toLegacy(virtualNode);
-        } else {
-            legacy = (CompositeNode) DataNormalizer.toLegacy(normalizedNode);
-        }
-
-        return bindingToLegacy.dataObjectFromDataDom(path, legacy);
-    }
-
     public DataNormalizer getDataNormalizer() {
         return legacyToNormalized;
     }
 
+    @SuppressWarnings("unchecked")
     public Optional<Entry<org.opendaylight.yangtools.yang.binding.InstanceIdentifier<? extends DataObject>, DataObject>> toBinding(
-            final Entry<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier, ? extends NormalizedNode<?, ?>> normalized)
+            final Entry<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier, ? extends NormalizedNode<?, ?>> normalized)
                     throws DeserializationException {
-        Optional<InstanceIdentifier<? extends DataObject>> potentialPath = toBinding(normalized.getKey());
-        if (potentialPath.isPresent()) {
-            InstanceIdentifier<? extends DataObject> bindingPath = potentialPath.get();
-            DataObject bindingData = toBinding(bindingPath, normalized.getValue());
-            if (bindingData == null) {
-                LOG.warn("Failed to deserialize {} to Binding format. Binding path is: {}", normalized, bindingPath);
-            }
-            return Optional.of(toBindingEntry(bindingPath, bindingData));
-        } else {
+        try {
+            @SuppressWarnings("rawtypes")
+            Entry binding = codecRegistry.fromNormalizedNode(normalized.getKey(), normalized.getValue());
+            return Optional.<Entry<org.opendaylight.yangtools.yang.binding.InstanceIdentifier<? extends DataObject>, DataObject>>fromNullable(binding);
+        } catch (IllegalArgumentException e) {
             return Optional.absent();
         }
     }
@@ -282,269 +110,11 @@ public class BindingToNormalizedNodeCodec implements SchemaContextListener {
     @Override
     public void onGlobalContextUpdated(final SchemaContext arg0) {
         legacyToNormalized = new DataNormalizer(arg0);
+        codecRegistry.onBindingRuntimeContextUpdated(BindingRuntimeContext.create(classLoadingStrategy, arg0));
     }
 
-    private org.opendaylight.yangtools.yang.data.api.InstanceIdentifier toNormalizedAugmented(
-            final InstanceIdentifier<?> augPath) {
-        org.opendaylight.yangtools.yang.data.api.InstanceIdentifier processed = toNormalizedImpl(augPath);
-        // If used instance identifier codec added supports for deserialization
-        // of last AugmentationIdentifier we will just reuse it
-        if (isAugmentationIdentifier(processed)) {
-            return processed;
-        }
-        Optional<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier> additionalSerialized;
-        additionalSerialized = toNormalizedAugmentedUsingChildContainers(augPath, processed);
-
-        if (additionalSerialized.isPresent()) {
-            return additionalSerialized.get();
-        }
-        additionalSerialized = toNormalizedAugmentedUsingChildLeafs(augPath, processed);
-        if (additionalSerialized.isPresent()) {
-            return additionalSerialized.get();
-        }
-        throw new IllegalStateException("Unabled to construct augmentation identfier for " + augPath);
-    }
-
-    /**
-     * Tries to find correct augmentation identifier using children leafs
-     *
-     * This method uses normalized Instance Identifier of parent node to fetch
-     * schema and {@link BindingReflections#getModuleInfo(Class)} to learn about
-     * augmentation namespace, specificly, in which module it was defined.
-     *
-     * Then it uses it to filter all available augmentations for parent by
-     * module. After that it walks augmentations in particular module and
-     * pick-up first which at least one leaf name matches supplied augmentation.
-     * We could do this safely since YANG explicitly states that no any existing
-     * augmentations must differ in leaf fully qualified names.
-     *
-     *
-     * @param augPath
-     *            Binding Aware Path which ends with augment
-     * @param parentPath
-     *            Processed path
-     * @return
-     */
-    private Optional<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier> toNormalizedAugmentedUsingChildLeafs(
-            final InstanceIdentifier<?> augPath,
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier parentPath) {
-        try {
-            DataNormalizationOperation<?> parentOp = legacyToNormalized.getOperation(parentPath);
-            if(!parentOp.getDataSchemaNode().isPresent()) {
-                return Optional.absent();
-            }
-            DataSchemaNode parentSchema = parentOp.getDataSchemaNode().get();
-            if (parentSchema instanceof AugmentationTarget) {
-                Set<AugmentationSchema> augmentations = ((AugmentationTarget) parentSchema).getAvailableAugmentations();
-                LOG.info("Augmentations for {}, {}", augPath, augmentations);
-                Optional<AugmentationSchema> schema = findAugmentation(augPath.getTargetType(), augmentations);
-                if (schema.isPresent()) {
-                    AugmentationIdentifier augmentationIdentifier = DataNormalizationOperation
-                            .augmentationIdentifierFrom(schema.get());
-                    return Optional.of(parentPath.node(augmentationIdentifier));
-                }
-            }
-        } catch (DataNormalizationException e) {
-            throw new IllegalArgumentException(e);
-        }
-        return Optional.absent();
-    }
-
-    /**
-     * Creates instance identifier for augmentation child, tries to serialize it
-     * Instance Identifier is then shortened to last augmentation.
-     *
-     * This is for situations, where underlying codec is implementing hydrogen
-     * style DOM APIs (which did not supported {@link AugmentationIdentifier}.)
-     *
-     * @param augPath
-     * @param parentPath
-     *            Path to parent node
-     * @return
-     */
-    @SuppressWarnings("rawtypes")
-    private Optional<org.opendaylight.yangtools.yang.data.api.InstanceIdentifier> toNormalizedAugmentedUsingChildContainers(
-            final InstanceIdentifier<?> augPath,
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier parentPath) {
-        for (Class augChild : BindingReflections.getChildrenClasses(augPath.getTargetType())) {
-            @SuppressWarnings("unchecked")
-            InstanceIdentifier<?> childPath = augPath.child(augChild);
-            org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized = toNormalizedImpl(childPath);
-            org.opendaylight.yangtools.yang.data.api.InstanceIdentifier potentialDiscovered = shortenToLastAugmentation(
-                    normalized, parentPath);
-            if (potentialDiscovered != null) {
-                return Optional.of(potentialDiscovered);
-            }
-        }
-        return Optional.absent();
-    }
-
-    private Optional<AugmentationSchema> findAugmentation(final Class<?> targetType,
-            final Set<AugmentationSchema> augmentations) {
-        YangModuleInfo moduleInfo;
-        try {
-            moduleInfo = BindingReflections.getModuleInfo(targetType);
-        } catch (Exception e) {
-            throw new IllegalStateException(e);
-        }
-        Iterable<AugmentationSchema> filtered = filteredByModuleInfo(augmentations,
-                BindingReflections.getModuleQName(moduleInfo).getModule());
-        filtered.toString();
-        Set<String> targetTypeGetters = getYangModeledGetters(targetType);
-        for (AugmentationSchema schema : filtered) {
-            for (DataSchemaNode child : schema.getChildNodes()) {
-                String getterName = "get" + BindingMapping.getClassName(child.getQName());
-                if (targetTypeGetters.contains(getterName)) {
-                    return Optional.of(schema);
-                }
-            }
-        }
-        return Optional.absent();
-    }
-
-    private static Iterable<AugmentationSchema> filteredByModuleInfo(final Iterable<AugmentationSchema> augmentations,
-            final QNameModule module) {
-        return Iterables.filter(augmentations, new Predicate<AugmentationSchema>() {
-            @Override
-            public boolean apply(final AugmentationSchema schema) {
-                final Collection<DataSchemaNode> childNodes = schema.getChildNodes();
-                return !childNodes.isEmpty() && module.equals(Iterables.get(childNodes, 0).getQName().getModule());
-            }
-        });
-    }
-
-    public static final Set<String> getYangModeledGetters(final Class<?> targetType) {
-        HashSet<String> ret = new HashSet<String>();
-        for (Method method : targetType.getMethods()) {
-            if (isYangModeledGetter(method)) {
-                ret.add(method.getName());
-            }
-        }
-        return ret;
-    }
-
-    /**
-     *
-     * Returns true if supplied method represent getter for YANG modeled value
-     *
-     * @param method
-     *            Method to be tested
-     * @return true if method represent getter for YANG Modeled value.
-     */
-    private static final boolean isYangModeledGetter(final Method method) {
-        return !method.getName().equals("getClass") && !method.getName().equals("getImplementedInterface")
-                && method.getName().startsWith("get") && method.getParameterTypes().length == 0;
-    }
-
-    private org.opendaylight.yangtools.yang.data.api.InstanceIdentifier shortenToLastAugmentation(
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized,
-            final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier parentPath) {
-        int parentSize = Iterables.size(parentPath.getPathArguments());
-        int position = 0;
-        int foundPosition = -1;
-        for (PathArgument arg : normalized.getPathArguments()) {
-            position++;
-            if (arg instanceof AugmentationIdentifier) {
-                foundPosition = position;
-            }
-        }
-        if (foundPosition > 0 && foundPosition > parentSize) {
-            Iterable<PathArgument> shortened = Iterables.limit(normalized.getPathArguments(), foundPosition);
-            return org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.create(shortened);
-        }
-        return null;
-    }
-
-    private InstanceIdentifier<? extends DataObject> shortenToLastAugment(
-            final InstanceIdentifier<? extends DataObject> binding) {
-        int position = 0;
-        int foundPosition = -1;
-        for (org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument arg : binding.getPathArguments()) {
-            position++;
-            if (isAugmentation(arg.getType())) {
-                foundPosition = position;
-            }
-        }
-        return InstanceIdentifier.create(Iterables.limit(binding.getPathArguments(), foundPosition));
-    }
-
-    private org.opendaylight.yangtools.yang.data.api.InstanceIdentifier toNormalizedImpl(
-            final InstanceIdentifier<? extends DataObject> binding) {
-        final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier legacyPath = bindingToLegacy
-                .toDataDom(binding);
-        final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier normalized = legacyToNormalized
-                .toNormalized(legacyPath);
-        return normalized;
-    }
-
-    private static boolean isAugmentation(final Class<? extends DataObject> type) {
-        return Augmentation.class.isAssignableFrom(type);
-    }
-
-    private static boolean isAugmentationIdentifier(final InstanceIdentifier<?> potential) {
-        return Augmentation.class.isAssignableFrom(potential.getTargetType());
-    }
-
-    private boolean isAugmentationIdentifier(final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier processed) {
-        return Iterables.getLast(processed.getPathArguments()) instanceof AugmentationIdentifier;
-    }
-
-    private static int getAugmentationCount(final InstanceIdentifier<?> potential) {
-        int count = 0;
-        for (org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument arg : potential.getPathArguments()) {
-            if (isAugmentation(arg.getType())) {
-                count++;
-            }
-
-        }
-        return count;
-    }
-
-    private static int getAugmentationCount(final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier potential) {
-        int count = 0;
-        for (PathArgument arg : potential.getPathArguments()) {
-            if (arg instanceof AugmentationIdentifier) {
-                count++;
-            }
-        }
-        return count;
-    }
-
-    @SuppressWarnings({ "rawtypes", "unchecked" })
     public <T extends DataObject> Function<Optional<NormalizedNode<?, ?>>, Optional<T>>  deserializeFunction(final InstanceIdentifier<T> path) {
-        return new DeserializeFunction(this, path);
-    }
-
-    private static class DeserializeFunction<T extends DataObject> implements Function<Optional<NormalizedNode<?, ?>>, Optional<T>> {
-
-        private final BindingToNormalizedNodeCodec codec;
-        private final InstanceIdentifier<?> path;
-
-        public DeserializeFunction(final BindingToNormalizedNodeCodec codec, final InstanceIdentifier<?> path) {
-            super();
-            this.codec = Preconditions.checkNotNull(codec, "Codec must not be null");
-            this.path = Preconditions.checkNotNull(path, "Path must not be null");
-        }
-
-        @SuppressWarnings("rawtypes")
-        @Nullable
-        @Override
-        public Optional apply(@Nullable final Optional<NormalizedNode<?, ?>> normalizedNode) {
-            if (normalizedNode.isPresent()) {
-                final DataObject dataObject;
-                try {
-                    dataObject = codec.toBinding(path, normalizedNode.get());
-                } catch (DeserializationException e) {
-                    LOG.warn("Failed to create dataobject from node {}", normalizedNode.get(), e);
-                    throw new IllegalStateException("Failed to create dataobject", e);
-                }
-
-                if (dataObject != null) {
-                    return Optional.of(dataObject);
-                }
-            }
-            return Optional.absent();
-        }
+        return codecRegistry.deserializeFunction(path);
     }
 
     /**
@@ -553,7 +123,7 @@ public class BindingToNormalizedNodeCodec implements SchemaContextListener {
      * @param path DOM Path
      * @return Node with defaults set on.
      */
-    public NormalizedNode<?, ?> getDefaultNodeFor(final org.opendaylight.yangtools.yang.data.api.InstanceIdentifier path) {
+    public NormalizedNode<?, ?> getDefaultNodeFor(final org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier path) {
         Iterator<PathArgument> iterator = path.getPathArguments().iterator();
         DataNormalizationOperation<?> currentOp = legacyToNormalized.getRootOperation();
         while (iterator.hasNext()) {
@@ -566,4 +136,13 @@ public class BindingToNormalizedNodeCodec implements SchemaContextListener {
         }
         return currentOp.createDefault(path.getLastPathArgument());
     }
+
+    public BindingIndependentMappingService getLegacy() {
+        return bindingToLegacy;
+    }
+
+    @Override
+    public void close() throws Exception {
+        // NOOP Intentionally
+    }
 }