1 package org.opendaylight.controller.md.sal.dom.store.impl;
3 import java.util.Collections;
7 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
8 import org.opendaylight.controller.md.sal.dom.store.impl.tree.StoreMetadataNode;
9 import org.opendaylight.yangtools.concepts.Identifiable;
10 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
11 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.AugmentationIdentifier;
12 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifierWithPredicates;
13 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
14 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
15 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
17 import com.google.common.base.Function;
18 import com.google.common.base.Strings;
19 import com.google.common.collect.FluentIterable;
20 import com.google.common.collect.ImmutableList;
21 import com.google.common.collect.ImmutableMap;
22 import com.google.common.primitives.UnsignedLong;
24 public final class StoreUtils {
26 private final static Function<Identifiable<Object>, Object> EXTRACT_IDENTIFIER = new Function<Identifiable<Object>, Object>() {
28 public Object apply(final Identifiable<Object> input) {
29 return input.getIdentifier();
33 public static final UnsignedLong increase(final UnsignedLong original) {
34 return original.plus(UnsignedLong.ONE);
37 public static final InstanceIdentifier append(final InstanceIdentifier parent, final PathArgument arg) {
39 return new InstanceIdentifier(ImmutableList.<PathArgument> builder().addAll(parent.getPath()).add(arg).build());
42 public static AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> initialChangeEvent(
43 final InstanceIdentifier path, final StoreMetadataNode data) {
44 return new InitialDataChangeEvent(path, data.getData());
48 * Suppressing warnings here allows us to fool the compiler enough
49 * such that we can reuse a single function for all applicable types
50 * and present it in a type-safe manner to our users.
52 @SuppressWarnings({ "unchecked", "rawtypes" })
53 public static <V> Function<Identifiable<V>, V> identifierExtractor() {
54 return (Function) EXTRACT_IDENTIFIER;
57 private static final class InitialDataChangeEvent implements
58 AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> {
60 private final ImmutableMap<InstanceIdentifier, NormalizedNode<?, ?>> payload;
61 private final NormalizedNode<?, ?> data;
63 public InitialDataChangeEvent(final InstanceIdentifier path, final NormalizedNode<?, ?> data) {
64 payload = ImmutableMap.<InstanceIdentifier, NormalizedNode<?, ?>> of(path, data);
69 public Map<InstanceIdentifier, NormalizedNode<?, ?>> getCreatedData() {
74 public Map<InstanceIdentifier, ? extends NormalizedNode<?, ?>> getOriginalData() {
75 return Collections.emptyMap();
79 public NormalizedNode<?, ?> getOriginalSubtree() {
84 public Set<InstanceIdentifier> getRemovedPaths() {
85 return Collections.emptySet();
89 public Map<InstanceIdentifier, NormalizedNode<?, ?>> getUpdatedData() {
94 public NormalizedNode<?, ?> getUpdatedSubtree() {
99 public static <V> Set<V> toIdentifierSet(final Iterable<? extends Identifiable<V>> children) {
100 return FluentIterable.from(children).transform(StoreUtils.<V> identifierExtractor()).toSet();
103 public static String toStringTree(final StoreMetadataNode metaNode) {
104 StringBuilder builder = new StringBuilder();
105 toStringTree(builder, metaNode, 0);
106 return builder.toString();
109 private static void toStringTree(final StringBuilder builder, final StoreMetadataNode metaNode, final int offset) {
110 String prefix = Strings.repeat(" ", offset);
111 builder.append(prefix).append(toStringTree(metaNode.getIdentifier()));
112 NormalizedNode<?, ?> dataNode = metaNode.getData();
113 if (dataNode instanceof NormalizedNodeContainer<?, ?, ?>) {
114 builder.append(" {\n");
115 for (StoreMetadataNode child : metaNode.getChildren()) {
116 toStringTree(builder, child, offset + 4);
118 builder.append(prefix).append('}');
120 builder.append(' ').append(dataNode.getValue());
122 builder.append('\n');
125 private static String toStringTree(final PathArgument identifier) {
126 if (identifier instanceof NodeIdentifierWithPredicates) {
127 StringBuilder builder = new StringBuilder();
128 builder.append(identifier.getNodeType().getLocalName());
129 builder.append(((NodeIdentifierWithPredicates) identifier).getKeyValues().values());
130 return builder.toString();
131 } else if (identifier instanceof AugmentationIdentifier) {
132 return "augmentation";
134 return identifier.getNodeType().getLocalName();