package org.opendaylight.yangtools.yang.data.impl.schema.tree;
import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Objects.requireNonNull;
+import com.google.common.base.MoreObjects.ToStringHelper;
import java.util.Optional;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.NonNullByDefault;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
-import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
import org.opendaylight.yangtools.yang.data.api.schema.tree.RequiredElementCountException;
-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.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ElementCountConstraint;
import org.opendaylight.yangtools.yang.model.api.ElementCountConstraintAware;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-final class MinMaxElementsValidation extends ModificationApplyOperation {
- private static final Logger LOG = LoggerFactory.getLogger(MinMaxElementsValidation.class);
-
- private final SchemaAwareApplyOperation delegate;
+final class MinMaxElementsValidation<T extends DataSchemaNode & ElementCountConstraintAware>
+ extends AbstractValidation {
private final int minElements;
private final int maxElements;
- private MinMaxElementsValidation(final SchemaAwareApplyOperation delegate, final Integer minElements,
+ private MinMaxElementsValidation(final SchemaAwareApplyOperation<T> delegate, final Integer minElements,
final Integer maxElements) {
- this.delegate = requireNonNull(delegate);
+ super(delegate);
this.minElements = minElements != null ? minElements : 0;
this.maxElements = maxElements != null ? maxElements : Integer.MAX_VALUE;
}
- static ModificationApplyOperation from(final SchemaAwareApplyOperation delegate, final DataSchemaNode schema) {
- if (!(schema instanceof ElementCountConstraintAware)) {
- return delegate;
- }
- final Optional<ElementCountConstraint> optConstraint = ((ElementCountConstraintAware) schema)
- .getElementCountConstraint();
+ static <T extends DataSchemaNode & ElementCountConstraintAware> ModificationApplyOperation from(
+ final SchemaAwareApplyOperation<T> delegate) {
+ final Optional<ElementCountConstraint> optConstraint = delegate.getSchema().getElementCountConstraint();
if (!optConstraint.isPresent()) {
return delegate;
}
final ElementCountConstraint constraint = optConstraint.get();
- return new MinMaxElementsValidation(delegate, constraint.getMinElements(), constraint.getMaxElements());
+ return new MinMaxElementsValidation<>(delegate, constraint.getMinElements(), constraint.getMaxElements());
}
@Override
- Optional<TreeNode> apply(final ModifiedNode modification, final Optional<TreeNode> storeMeta,
- final Version version) {
- Optional<TreeNode> ret = modification.getValidatedNode(this, storeMeta);
- if (ret == null) {
- // Deal with the result moving on us
- ret = delegate.apply(modification, storeMeta, version);
- checkChildren(modification.getIdentifier(), numOfChildrenFromTreeNode(ret));
- }
- return ret;
+ void enforceOnData(final NormalizedNode data) {
+ enforceOnData(data, (actual, message) -> new MinMaxElementsValidationFailedException(message));
}
@Override
- void checkApplicable(final ModificationPath path, final NodeModification modification,
- final Optional<TreeNode> current, final Version version) throws DataValidationFailedException {
- delegate.checkApplicable(path, modification, current, version);
-
- if (!(modification instanceof ModifiedNode)) {
- LOG.debug("Could not validate {}, does not implement expected class {}", modification, ModifiedNode.class);
- return;
- }
- final ModifiedNode modified = (ModifiedNode) modification;
-
- // We need to actually perform the operation to deal with merge in a sane manner. We know the modification
- // is immutable, so the result of validation will probably not change.
- final Optional<TreeNode> maybeApplied = delegate.apply(modified, current, version);
- validateMinMaxElements(path, modified.getIdentifier(), numOfChildrenFromTreeNode(maybeApplied));
-
- // Everything passed. We now have a snapshot of the result node, it would be too bad if we just threw it out.
- // We know what the result of an apply operation is going to be *if* the following are kept unchanged:
- // - the 'current' node
- // - the schemacontext (therefore, the fact this object is associated with the modification)
- //
- // So let's stash the result. We will pick it up during apply operation.
- modified.setValidatedNode(this, current, maybeApplied);
+ void enforceOnData(final ModificationPath path, final NormalizedNode data) throws RequiredElementCountException {
+ enforceOnData(data, (actual, message) -> new RequiredElementCountException(path.toInstanceIdentifier(),
+ minElements, maxElements, actual, message));
}
- @Override
- void verifyStructure(final NormalizedNode<?, ?> modification, final boolean verifyChildren) {
- delegate.verifyStructure(modification, verifyChildren);
- if (verifyChildren) {
- checkChildren(modification.getIdentifier(), numOfChildrenFromValue(modification));
- }
+ @FunctionalInterface
+ @NonNullByDefault
+ interface ExceptionSupplier<T extends Exception> {
+ T get(int actual, String message);
}
- @Override
- ChildTrackingPolicy getChildPolicy() {
- return delegate.getChildPolicy();
- }
-
- @Override
- void mergeIntoModifiedNode(final ModifiedNode node, final NormalizedNode<?, ?> value, final Version version) {
- delegate.mergeIntoModifiedNode(node, value, version);
- }
-
- @Override
- public Optional<ModificationApplyOperation> getChild(final PathArgument child) {
- return delegate.getChild(child);
- }
-
- @Override
- void recursivelyVerifyStructure(final NormalizedNode<?, ?> value) {
- delegate.recursivelyVerifyStructure(value);
- }
-
- private void validateMinMaxElements(final ModificationPath path, final PathArgument id, final int children)
- throws DataValidationFailedException {
+ private <X extends @NonNull Exception> void enforceOnData(final NormalizedNode value,
+ final ExceptionSupplier<X> exceptionSupplier) throws X {
+ checkArgument(value instanceof NormalizedNodeContainer, "Value %s is not a NormalizedNodeContainer", value);
+ final int children = ((NormalizedNodeContainer) value).size();
if (minElements > children) {
- throw new RequiredElementCountException(path.toInstanceIdentifier(), minElements, maxElements,
- children, "%s does not have enough elements (%s), needs at least %s", id, children, minElements);
+ throw exceptionSupplier.get(children, value.getIdentifier()
+ + " does not have enough elements (" + children + "), needs at least " + minElements);
}
if (maxElements < children) {
- throw new RequiredElementCountException(path.toInstanceIdentifier(), minElements, maxElements,
- children, "%s has too many elements (%s), can have at most %s", id, children, maxElements);
+ throw exceptionSupplier.get(children, value.getIdentifier()
+ + " has too many elements (" + children + "), can have at most " + maxElements);
}
}
- private void checkChildren(final PathArgument id, final int children) {
- checkArgument(minElements <= children, "Node %s does not have enough elements (%s), needs at least %s", id,
- children, minElements);
- checkArgument(maxElements >= children, "Node %s has too many elements (%s), can have at most %s", id, children,
- maxElements);
- }
-
- private static int numOfChildrenFromTreeNode(final Optional<TreeNode> node) {
- return node.isPresent() ? numOfChildrenFromValue(node.get().getData()) : 0;
- }
-
- private static int numOfChildrenFromValue(final NormalizedNode<?, ?> value) {
- if (value instanceof NormalizedNodeContainer) {
- return ((NormalizedNodeContainer<?, ?, ?>) value).getValue().size();
- } else if (value instanceof UnkeyedListNode) {
- return ((UnkeyedListNode) value).getSize();
- }
-
- throw new IllegalArgumentException(String.format(
- "Unexpected type '%s', expected types are NormalizedNodeContainer and UnkeyedListNode",
- value.getClass()));
+ @Override
+ ToStringHelper addToStringAttributes(final ToStringHelper helper) {
+ return super.addToStringAttributes(helper.add("min", minElements).add("max", maxElements));
}
}
Code Review / yangtools.git / blobdiff