Remove MapModificationStrategy hack
[yangtools.git] / yang / yang-data-impl / src / main / java / org / opendaylight / yangtools / yang / data / impl / schema / tree / ChoiceModificationStrategy.java
index 47f1e66b4e33527fbf556c7d388b7538c6753e43..a03c21e7e8b5917e6f18503b365fbc41bf0d56ab 100644 (file)
  */
 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
 
-import static com.google.common.base.Preconditions.checkArgument;
-import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Predicates;
+import com.google.common.base.Verify;
+import com.google.common.collect.Collections2;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableMap.Builder;
+import java.util.Collection;
+import java.util.HashMap;
 import java.util.Map;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import java.util.Map.Entry;
+import java.util.Optional;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
+import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.Version;
+import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableChoiceNodeBuilder;
-import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
+import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.CaseSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
 
 final class ChoiceModificationStrategy extends AbstractNodeContainerModificationStrategy {
-    private final Map<YangInstanceIdentifier.PathArgument, ModificationApplyOperation> childNodes;
-
-    ChoiceModificationStrategy(final ChoiceSchemaNode schemaNode, final TreeType treeType) {
-        super(ChoiceNode.class, treeType);
-        final ImmutableMap.Builder<YangInstanceIdentifier.PathArgument, ModificationApplyOperation> child = ImmutableMap.builder();
-
-        for (final ChoiceCaseNode caze : schemaNode.getCases()) {
-            if (SchemaAwareApplyOperation.belongsToTree(treeType,caze)) {
-                for (final DataSchemaNode cazeChild : caze.getChildNodes()) {
-                    if (SchemaAwareApplyOperation.belongsToTree(treeType,cazeChild)) {
-                        final ModificationApplyOperation childNode = SchemaAwareApplyOperation.from(cazeChild, treeType);
-                        child.put(NodeIdentifier.create(cazeChild.getQName()), childNode);
-                    }
+    private static final NormalizedNodeContainerSupport<NodeIdentifier, ChoiceNode> SUPPORT =
+            new NormalizedNodeContainerSupport<>(ChoiceNode.class, ImmutableChoiceNodeBuilder::create,
+                    ImmutableChoiceNodeBuilder::create);
+
+    private final ImmutableMap<PathArgument, ModificationApplyOperation> childNodes;
+    // FIXME: enforce leaves not coming from two case statements at the same time
+    private final ImmutableMap<CaseEnforcer, Collection<CaseEnforcer>> exclusions;
+    private final ImmutableMap<PathArgument, CaseEnforcer> caseEnforcers;
+    private final ChoiceNode emptyNode;
+
+    ChoiceModificationStrategy(final ChoiceSchemaNode schema, final DataTreeConfiguration treeConfig) {
+        super(SUPPORT, treeConfig);
+
+        final Builder<PathArgument, ModificationApplyOperation> childBuilder = ImmutableMap.builder();
+        final Builder<PathArgument, CaseEnforcer> enforcerBuilder = ImmutableMap.builder();
+        for (final CaseSchemaNode caze : schema.getCases().values()) {
+            final CaseEnforcer enforcer = CaseEnforcer.forTree(caze, treeConfig);
+            if (enforcer != null) {
+                for (final Entry<NodeIdentifier, DataSchemaNode> e : enforcer.getChildEntries()) {
+                    childBuilder.put(e.getKey(), SchemaAwareApplyOperation.from(e.getValue(), treeConfig));
+                    enforcerBuilder.put(e.getKey(), enforcer);
+                }
+                for (final Entry<AugmentationIdentifier, AugmentationSchemaNode> e
+                        : enforcer.getAugmentationEntries()) {
+                    childBuilder.put(e.getKey(), new AugmentationModificationStrategy(e.getValue(), caze, treeConfig));
+                    enforcerBuilder.put(e.getKey(), enforcer);
                 }
             }
         }
-        childNodes = child.build();
+        childNodes = childBuilder.build();
+        caseEnforcers = enforcerBuilder.build();
+
+        final Map<CaseEnforcer, Collection<CaseEnforcer>> exclusionsBuilder = new HashMap<>();
+        for (final CaseEnforcer e : caseEnforcers.values()) {
+            exclusionsBuilder.put(e, ImmutableList.copyOf(
+                Collections2.filter(caseEnforcers.values(), Predicates.not(Predicates.equalTo(e)))));
+        }
+        exclusions = ImmutableMap.copyOf(exclusionsBuilder);
+        emptyNode = ImmutableNodes.choiceNode(schema.getQName());
+    }
+
+    @Override
+    Optional<TreeNode> apply(final ModifiedNode modification, final Optional<TreeNode> storeMeta,
+            final Version version) {
+        return AutomaticLifecycleMixin.apply(super::apply, this::applyWrite, emptyNode, modification, storeMeta,
+            version);
+    }
+
+    @Override
+    void checkApplicable(final ModificationPath path, final NodeModification modification,
+            final Optional<TreeNode> current, final Version version) throws DataValidationFailedException {
+        AutomaticLifecycleMixin.checkApplicable(super::checkApplicable, emptyNode, path, modification, current,
+            version);
     }
 
     @Override
-    public Optional<ModificationApplyOperation> getChild(final YangInstanceIdentifier.PathArgument child) {
-        return Optional.fromNullable(childNodes.get(child));
+    public Optional<ModificationApplyOperation> getChild(final PathArgument child) {
+        return Optional.ofNullable(childNodes.get(child));
     }
 
     @Override
-    @SuppressWarnings("rawtypes")
-    protected DataContainerNodeBuilder createBuilder(final NormalizedNode<?, ?> original) {
-        checkArgument(original instanceof ChoiceNode);
-        return ImmutableChoiceNodeBuilder.create((ChoiceNode) original);
+    void additionalVerifyValueChildren(final NormalizedNode<?, ?> writtenValue) {
+        enforceCases(writtenValue);
+    }
+
+    private void enforceCases(final TreeNode tree) {
+        enforceCases(tree.getData());
+    }
+
+    private void enforceCases(final NormalizedNode<?, ?> normalizedNode) {
+        Verify.verify(normalizedNode instanceof ChoiceNode);
+        final Collection<DataContainerChild<?, ?>> children = ((ChoiceNode) normalizedNode).getValue();
+        if (!children.isEmpty()) {
+            final DataContainerChild<?, ?> firstChild = children.iterator().next();
+            final CaseEnforcer enforcer = Verify.verifyNotNull(caseEnforcers.get(firstChild.getIdentifier()),
+                "Case enforcer cannot be null. Most probably, child node %s of choice node %s does not belong "
+                + "in current tree type.", firstChild.getIdentifier(), normalizedNode.getIdentifier());
+
+            // Make sure no leaves from other cases are present
+            for (final CaseEnforcer other : exclusions.get(enforcer)) {
+                for (final PathArgument id : other.getAllChildIdentifiers()) {
+                    final Optional<NormalizedNode<?, ?>> maybeChild = NormalizedNodes.getDirectChild(normalizedNode,
+                        id);
+                    Preconditions.checkArgument(!maybeChild.isPresent(),
+                        "Child %s (from case %s) implies non-presence of child %s (from case %s), which is %s",
+                        firstChild.getIdentifier(), enforcer, id, other, maybeChild.orElse(null));
+                }
+            }
+
+            // Make sure all mandatory children are present
+            enforcer.enforceOnTreeNode(normalizedNode);
+        }
+    }
+
+    @Override
+    protected TreeNode applyMerge(final ModifiedNode modification, final TreeNode currentMeta, final Version version) {
+        final TreeNode ret = super.applyMerge(modification, currentMeta, version);
+        enforceCases(ret);
+        return ret;
+    }
+
+    @Override
+    protected TreeNode applyWrite(final ModifiedNode modification,  final NormalizedNode<?, ?> newValue,
+            final Optional<TreeNode> currentMeta, final Version version) {
+        final TreeNode ret = super.applyWrite(modification, newValue, currentMeta, version);
+        enforceCases(ret);
+        return ret;
+    }
+
+    @Override
+    protected TreeNode applyTouch(final ModifiedNode modification, final TreeNode currentMeta, final Version version) {
+        final TreeNode ret = super.applyTouch(modification, currentMeta, version);
+        enforceCases(ret);
+        return ret;
     }
 }
+