package org.opendaylight.controller.md.sal.dom.store.impl;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.StoreMetadataNode;
+import org.opendaylight.yangtools.concepts.Identifiable;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+
+import com.google.common.base.Function;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
import com.google.common.primitives.UnsignedLong;
public final class StoreUtils {
+ private final static Function<Identifiable<Object>, Object> EXTRACT_IDENTIFIER = new Function<Identifiable<Object>, Object>() {
+
+ @Override
+ public Object apply(final Identifiable<Object> input) {
+ return input.getIdentifier();
+ }
+ };
public static final UnsignedLong increase(final UnsignedLong original) {
return original.plus(UnsignedLong.ONE);
}
+ public static final InstanceIdentifier append(final InstanceIdentifier parent, final PathArgument arg) {
+
+ return new InstanceIdentifier(ImmutableList.<PathArgument> builder().addAll(parent.getPath()).add(arg).build());
+ }
+
+ public static AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> initialChangeEvent(
+ final InstanceIdentifier path, final StoreMetadataNode data) {
+ return new InitialDataChangeEvent(path, data.getData());
+ }
+
+ private static final class InitialDataChangeEvent implements
+ AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> {
+
+ private final ImmutableMap<InstanceIdentifier, NormalizedNode<?, ?>> payload;
+ private final NormalizedNode<?, ?> data;
+
+ public InitialDataChangeEvent(final InstanceIdentifier path, final NormalizedNode<?, ?> data) {
+ payload = ImmutableMap.<InstanceIdentifier, NormalizedNode<?, ?>> of(path, data);
+ this.data = data;
+ }
+ @Override
+ public Map<InstanceIdentifier, NormalizedNode<?, ?>> getCreatedData() {
+ return payload;
+ }
+ @Override
+ public Map<InstanceIdentifier, ? extends NormalizedNode<?, ?>> getOriginalData() {
+ return Collections.emptyMap();
+ }
+
+ @Override
+ public NormalizedNode<?, ?> getOriginalSubtree() {
+ return null;
+ }
+
+ @Override
+ public Set<InstanceIdentifier> getRemovedPaths() {
+ return Collections.emptySet();
+ }
+
+ @Override
+ public Map<InstanceIdentifier, NormalizedNode<?, ?>> getUpdatedData() {
+ return payload;
+ }
+
+ @Override
+ public NormalizedNode<?, ?> getUpdatedSubtree() {
+ return data;
+ }
+
+ }
+
+ @SuppressWarnings({ "unchecked", "rawtypes" })
+ public static <V> Function<Identifiable<V>,V> identifierExtractor() {
+ return (Function) EXTRACT_IDENTIFIER;
+ }
+
+ public static <V> Set<V> toIdentifierSet(final Iterable<? extends Identifiable<V>> children) {
+ return FluentIterable.from(children).transform(StoreUtils.<V>identifierExtractor()).toSet();
+ }
}