/*
* Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.yangtools.yang.data.impl.schema.transform.base.serializer;
import com.google.common.base.Preconditions;
import com.google.common.collect.Iterables;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
import org.opendaylight.yangtools.yang.data.api.schema.MixinNode;
import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
import org.opendaylight.yangtools.yang.data.impl.schema.transform.FromNormalizedNodeSerializerFactory;
import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
/**
*
* Dispatches the serialization process of nodes according to schema and returns
* the serialized elements.
*
* @param <E>
* type of serialized elements
*/
public interface NodeSerializerDispatcher<E> {
Iterable<E> dispatchChildElement(Object childSchema,
DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild);
/**
* Abstract implementation that implements the dispatch conditions. Only
* requires serializers to be provided. The same instance of serializer can
* be provided in case it is immutable.
*/
abstract class BaseNodeSerializerDispatcher<E> implements NodeSerializerDispatcher<E> {
private final FromNormalizedNodeSerializerFactory<E> factory;
protected BaseNodeSerializerDispatcher(final FromNormalizedNodeSerializerFactory<E> factory) {
this.factory = Preconditions.checkNotNull(factory);
}
@Override
public final Iterable<E> dispatchChildElement(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
if (dataContainerChild instanceof ContainerNode) {
return onContainerNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof LeafNode<?>) {
return onLeafNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof AnyXmlNode) {
return onAnyXmlNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof MixinNode) {
if (dataContainerChild instanceof LeafSetNode<?>) {
return onLeafListNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof MapNode) {
return onMapNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof UnkeyedListNode) {
return onUnkeyedListNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof ChoiceNode) {
return onChoiceNode(childSchema, dataContainerChild);
} else if (dataContainerChild instanceof AugmentationNode) {
return onAugmentationSchema(childSchema, dataContainerChild);
}
}
throw new IllegalArgumentException("Unable to serialize " + childSchema);
}
private Iterable<E> onAugmentationSchema(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, AugmentationSchema.class, dataContainerChild);
return factory.getAugmentationNodeSerializer().serialize((AugmentationSchema) childSchema,
(AugmentationNode) dataContainerChild);
}
private Iterable<E> onChoiceNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, ChoiceSchemaNode.class,
dataContainerChild);
return factory.getChoiceNodeSerializer()
.serialize((ChoiceSchemaNode) childSchema, (ChoiceNode) dataContainerChild);
}
private Iterable<E> onMapNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, ListSchemaNode.class, dataContainerChild);
return factory.getMapNodeSerializer().serialize((ListSchemaNode) childSchema, (MapNode) dataContainerChild);
}
private Iterable<E> onUnkeyedListNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, ListSchemaNode.class, dataContainerChild);
return factory.getUnkeyedListNodeSerializer().serialize((ListSchemaNode) childSchema, (UnkeyedListNode) dataContainerChild);
}
private Iterable<E> onLeafListNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, LeafListSchemaNode.class, dataContainerChild);
return factory.getLeafSetNodeSerializer().serialize((LeafListSchemaNode) childSchema,
(LeafSetNode<?>) dataContainerChild);
}
private Iterable<E> onLeafNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, LeafSchemaNode.class, dataContainerChild);
Iterable<E> elements = factory.getLeafNodeSerializer().serialize((LeafSchemaNode) childSchema,
(LeafNode<?>) dataContainerChild);
checkOnlyOneSerializedElement(elements, dataContainerChild);
return elements;
}
private Iterable<E> onAnyXmlNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, AnyXmlSchemaNode.class, dataContainerChild);
Iterable<E> elements = factory.getAnyXmlNodeSerializer().serialize((AnyXmlSchemaNode) childSchema,
(AnyXmlNode) dataContainerChild);
checkOnlyOneSerializedElement(elements, dataContainerChild);
return elements;
}
private static void checkOnlyOneSerializedElement(final Iterable<?> elements,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
final int size = Iterables.size(elements);
Preconditions.checkArgument(size == 1,
"Unexpected count of elements for entry serialized from: %s, should be 1, was: %s",
dataContainerChild, size);
}
private Iterable<E> onContainerNode(final Object childSchema,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
checkSchemaCompatibility(childSchema, ContainerSchemaNode.class, dataContainerChild);
Iterable<E> elements = factory.getContainerNodeSerializer().serialize((ContainerSchemaNode) childSchema,
(ContainerNode) dataContainerChild);
checkOnlyOneSerializedElement(elements, dataContainerChild);
return elements;
}
private static void checkSchemaCompatibility(final Object childSchema, final Class<?> containerSchemaNodeClass,
final DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?> dataContainerChild) {
Preconditions.checkArgument(containerSchemaNodeClass.isAssignableFrom(childSchema.getClass()),
"Incompatible schema: %s with node: %s, expected: %s", childSchema, dataContainerChild,
containerSchemaNodeClass);
}
}
}