--- /dev/null
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.md.sal.dom.store.impl.tree.data;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
+
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.AugmentationIdentifier;
+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.MapEntryNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableAugmentationNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapEntryNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableUnkeyedListEntryNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.transform.base.AugmentationSchemaProxy;
+import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
+import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
+import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
+import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
+
+import com.google.common.base.Function;
+import com.google.common.base.Optional;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+
+abstract class DataNodeContainerModificationStrategy<T extends DataNodeContainer> extends NormalizedNodeContainerModificationStrategy {
+
+ private final T schema;
+ private final LoadingCache<PathArgument, ModificationApplyOperation> childCache = CacheBuilder.newBuilder()
+ .build(CacheLoader.from(new Function<PathArgument, ModificationApplyOperation>() {
+
+ @Override
+ public ModificationApplyOperation apply(final PathArgument identifier) {
+ if (identifier instanceof AugmentationIdentifier && schema instanceof AugmentationTarget) {
+ return from(schema, (AugmentationTarget) schema, (AugmentationIdentifier) identifier);
+ }
+
+ DataSchemaNode child = schema.getDataChildByName(identifier.getNodeType());
+ if (child == null) {
+ return null;
+ }
+ return from(child);
+ }
+ }));
+
+ protected DataNodeContainerModificationStrategy(final T schema,
+ final Class<? extends NormalizedNode<?, ?>> nodeClass) {
+ super(nodeClass);
+ this.schema = schema;
+ }
+
+ protected T getSchema() {
+ return schema;
+ }
+
+ @Override
+ public Optional<ModificationApplyOperation> getChild(final PathArgument identifier) {
+ try {
+ return Optional.<ModificationApplyOperation> fromNullable(childCache.get(identifier));
+ } catch (ExecutionException e) {
+ return Optional.absent();
+ }
+ }
+
+ @Override
+ @SuppressWarnings("rawtypes")
+ protected abstract DataContainerNodeBuilder createBuilder(NormalizedNode<?, ?> original);
+
+ @Override
+ public String toString() {
+ return getClass().getSimpleName() + " [" + schema + "]";
+ }
+
+ public static class AugmentationModificationStrategy extends DataNodeContainerModificationStrategy<AugmentationSchema> {
+
+ protected AugmentationModificationStrategy(final AugmentationSchema schema, final DataNodeContainer resolved) {
+ super(createAugmentProxy(schema,resolved), AugmentationNode.class);
+ }
+
+ @Override
+ @SuppressWarnings("rawtypes")
+ protected DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
+ checkArgument(original instanceof AugmentationNode);
+ return ImmutableAugmentationNodeBuilder.create((AugmentationNode) original);
+ }
+
+
+ private static AugmentationSchema createAugmentProxy(final AugmentationSchema schema, final DataNodeContainer resolved) {
+ Set<DataSchemaNode> realChildSchemas = new HashSet<>();
+ for(DataSchemaNode augChild : schema.getChildNodes()) {
+ realChildSchemas.add(resolved.getDataChildByName(augChild.getQName()));
+ }
+ return new AugmentationSchemaProxy(schema, realChildSchemas);
+ }
+ }
+
+ public static class ContainerModificationStrategy extends DataNodeContainerModificationStrategy<ContainerSchemaNode> {
+
+ public ContainerModificationStrategy(final ContainerSchemaNode schemaNode) {
+ super(schemaNode, ContainerNode.class);
+ }
+
+ @Override
+ @SuppressWarnings("rawtypes")
+ protected DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
+ checkArgument(original instanceof ContainerNode);
+ return ImmutableContainerNodeBuilder.create((ContainerNode) original);
+ }
+ }
+
+ public static class ListEntryModificationStrategy extends DataNodeContainerModificationStrategy<ListSchemaNode> {
+
+ protected ListEntryModificationStrategy(final ListSchemaNode schema) {
+ super(schema, MapEntryNode.class);
+ }
+
+ @Override
+ @SuppressWarnings("rawtypes")
+ protected final DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
+ checkArgument(original instanceof MapEntryNode);
+ return ImmutableMapEntryNodeBuilder.create((MapEntryNode) original);
+ }
+ }
+
+ public static class UnkeyedListItemModificationStrategy extends DataNodeContainerModificationStrategy<ListSchemaNode> {
+
+ public UnkeyedListItemModificationStrategy(final ListSchemaNode schemaNode) {
+ super(schemaNode, UnkeyedListEntryNode.class);
+ }
+
+ @Override
+ @SuppressWarnings("rawtypes")
+ protected DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
+ checkArgument(original instanceof UnkeyedListEntryNode);
+ return ImmutableUnkeyedListEntryNodeBuilder.create((UnkeyedListEntryNode) original);
+ }
+ }
+}
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