1 package org.opendaylight.controller.md.sal.common.impl.util.compat;
3 import static com.google.common.base.Preconditions.checkArgument;
5 import java.util.AbstractMap;
6 import java.util.ArrayList;
9 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
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.NodeIdentifier;
13 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifierWithPredicates;
14 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
15 import org.opendaylight.yangtools.yang.data.api.Node;
16 import org.opendaylight.yangtools.yang.data.api.SimpleNode;
17 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
18 import org.opendaylight.yangtools.yang.data.api.schema.MixinNode;
19 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
21 import org.opendaylight.yangtools.yang.data.impl.ImmutableCompositeNode;
22 import org.opendaylight.yangtools.yang.data.impl.SimpleNodeTOImpl;
23 import org.opendaylight.yangtools.yang.data.impl.util.CompositeNodeBuilder;
24 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
26 import com.google.common.base.Preconditions;
27 import com.google.common.base.Predicate;
28 import com.google.common.collect.FluentIterable;
29 import com.google.common.collect.ImmutableList;
30 import com.google.common.collect.Iterables;
32 public class DataNormalizer {
34 private final SchemaContext schemaContext;
36 private final DataNormalizationOperation<?> operation;
38 public DataNormalizer(final SchemaContext ctx) {
40 operation = DataNormalizationOperation.from(ctx);
43 public InstanceIdentifier toNormalized(final InstanceIdentifier legacy) {
44 ImmutableList.Builder<PathArgument> normalizedArgs = ImmutableList.builder();
46 DataNormalizationOperation<?> currentOp = operation;
47 for (PathArgument legacyArg : legacy.getPath()) {
48 currentOp = currentOp.getChild(legacyArg);
49 checkArgument(currentOp != null, "Legacy Instance Identifier %s is not correct. Normalized Instance Identifier so far %s",legacy,normalizedArgs.build());
50 while (currentOp.isMixin()) {
51 normalizedArgs.add(currentOp.getIdentifier());
52 currentOp = currentOp.getChild(legacyArg.getNodeType());
54 normalizedArgs.add(legacyArg);
56 return new InstanceIdentifier(normalizedArgs.build());
59 public Map.Entry<InstanceIdentifier,NormalizedNode<?, ?>> toNormalized(final Map.Entry<InstanceIdentifier,CompositeNode> legacy) {
60 return toNormalized(legacy.getKey(), legacy.getValue());
63 public Map.Entry<InstanceIdentifier,NormalizedNode<?, ?>> toNormalized(final InstanceIdentifier legacyPath, final CompositeNode legacyData) {
65 InstanceIdentifier normalizedPath = toNormalized(legacyPath);
67 DataNormalizationOperation<?> currentOp = operation;
68 for (PathArgument arg : normalizedPath.getPath()) {
69 currentOp = currentOp.getChild(arg);
71 // Write Augmentaiton data resolution
72 if (legacyData.getChildren().size() == 1) {
73 DataNormalizationOperation<?> potentialOp = currentOp.getChild(legacyData.getChildren().get(0)
75 if(potentialOp.getIdentifier() instanceof AugmentationIdentifier) {
76 currentOp = potentialOp;
77 ArrayList<PathArgument> reworkedArgs = new ArrayList<>(normalizedPath.getPath());
78 reworkedArgs.add(potentialOp.getIdentifier());
79 normalizedPath = new InstanceIdentifier(reworkedArgs);
83 Preconditions.checkArgument(currentOp != null,
84 "Instance Identifier %s does not reference correct schema Node.", normalizedPath);
85 return new AbstractMap.SimpleEntry<InstanceIdentifier,NormalizedNode<?, ?>>(normalizedPath,currentOp.normalize(legacyData));
88 public InstanceIdentifier toLegacy(final InstanceIdentifier normalized) {
89 ImmutableList.Builder<PathArgument> legacyArgs = ImmutableList.builder();
90 PathArgument previous = null;
91 for (PathArgument normalizedArg : normalized.getPath()) {
92 if (normalizedArg instanceof NodeIdentifier) {
93 if (previous != null) {
94 legacyArgs.add(previous);
96 previous = normalizedArg;
97 } else if (normalizedArg instanceof NodeIdentifierWithPredicates) {
98 // We skip previous node, which was mixin.
99 previous = normalizedArg;
100 } else if (normalizedArg instanceof AugmentationIdentifier) {
101 // We ignore argument
103 // FIXME : Add option for reading choice
105 if (previous != null) {
106 legacyArgs.add(previous);
108 return new InstanceIdentifier(legacyArgs.build());
111 public CompositeNode toLegacy(final InstanceIdentifier normalizedPath, final NormalizedNode<?, ?> normalizedData) {
112 // Preconditions.checkArgument(normalizedData instanceof
113 // DataContainerNode<?>,"Node object %s, %s should be of type DataContainerNode",normalizedPath,normalizedData);
114 if (normalizedData instanceof DataContainerNode<?>) {
115 return toLegacyFromDataContainer((DataContainerNode<?>) normalizedData);
120 public static Node<?> toLegacy(final NormalizedNode<?, ?> node) {
121 if (node instanceof MixinNode) {
123 * Direct reading of MixinNodes is not supported,
124 * since it is not possible in legacy APIs create pointer
131 if (node instanceof DataContainerNode<?>) {
132 return toLegacyFromDataContainer((DataContainerNode<?>) node);
134 return toLegacySimple(node);
138 private static SimpleNode<?> toLegacySimple(final NormalizedNode<?, ?> node) {
139 return new SimpleNodeTOImpl<Object>(node.getNodeType(), null, node.getValue());
142 @SuppressWarnings({ "unchecked", "rawtypes" })
143 private static CompositeNode toLegacyFromDataContainer(final DataContainerNode<?> node) {
144 CompositeNodeBuilder<ImmutableCompositeNode> builder = ImmutableCompositeNode.builder();
145 builder.setQName(node.getNodeType());
146 for (NormalizedNode<?, ?> child : node.getValue()) {
147 if (child instanceof MixinNode && child instanceof NormalizedNodeContainer<?, ?, ?>) {
148 builder.addAll(toLegacyNodesFromMixin((NormalizedNodeContainer) child));
150 addToBuilder(builder, toLegacy(child));
153 return builder.toInstance();
156 private static void addToBuilder(final CompositeNodeBuilder<ImmutableCompositeNode> builder, final Node<?> legacy) {
157 if (legacy != null) {
162 @SuppressWarnings({ "rawtypes", "unchecked" })
163 private static Iterable<Node<?>> toLegacyNodesFromMixin(
164 final NormalizedNodeContainer<?, ?, NormalizedNode<?, ?>> mixin) {
165 ArrayList<Node<?>> ret = new ArrayList<>();
166 for (NormalizedNode<?, ?> child : mixin.getValue()) {
167 if(child instanceof MixinNode && child instanceof NormalizedNodeContainer<?, ?, ?>) {
168 Iterables.addAll(ret,toLegacyNodesFromMixin((NormalizedNodeContainer) child));
170 ret.add(toLegacy(child));
173 return FluentIterable.from(ret).filter(new Predicate<Node<?>>() {
176 public boolean apply(final Node<?> input) {
177 return input != null;
182 public DataNormalizationOperation<?> getRootOperation() {