2 * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.mdsal.binding.dom.adapter.query;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static com.google.common.base.Verify.verifyNotNull;
12 import static java.util.Objects.requireNonNull;
14 import com.google.common.annotations.Beta;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.mdsal.binding.api.query.QueryExecutor;
17 import org.opendaylight.mdsal.binding.api.query.QueryExpression;
18 import org.opendaylight.mdsal.binding.api.query.QueryResult;
19 import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTree;
20 import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode;
21 import org.opendaylight.mdsal.dom.api.query.DOMQuery;
22 import org.opendaylight.mdsal.dom.api.query.DOMQueryLike;
23 import org.opendaylight.mdsal.dom.spi.query.DOMQueryEvaluator;
24 import org.opendaylight.yangtools.yang.binding.ChildOf;
25 import org.opendaylight.yangtools.yang.binding.DataObject;
26 import org.opendaylight.yangtools.yang.binding.DataRoot;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
29 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
30 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
31 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
32 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
33 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
34 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
37 public final class SimpleQueryExecutor implements QueryExecutor {
38 private final BindingCodecTree codec;
39 private final NormalizedNode<?, ?> root;
41 public SimpleQueryExecutor(final BindingCodecTree codec, final NormalizedNode<?, ?> root) {
42 this.codec = requireNonNull(codec);
43 this.root = requireNonNull(root);
47 public <T extends @NonNull DataObject> QueryResult<T> executeQuery(final QueryExpression<T> query) {
48 checkArgument(query instanceof DOMQueryLike, "Unsupported expression %s", query);
49 final DOMQuery domQuery = ((DOMQueryLike) query).asDOMQuery();
50 return new DefaultQueryResult<>(codec, DOMQueryEvaluator.evaluateOnRoot(domQuery, root));
53 public static @NonNull Builder builder(final BindingCodecTree codec) {
54 return new Builder(codec);
57 public static final class Builder implements org.opendaylight.yangtools.concepts.Builder<SimpleQueryExecutor> {
58 private final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> rootBuilder = Builders.containerBuilder()
59 .withNodeIdentifier(new NodeIdentifier(SchemaContext.NAME));
60 private final BindingCodecTree codec;
62 Builder(final BindingCodecTree codec) {
63 this.codec = requireNonNull(codec);
66 public <T extends ChildOf<? extends DataRoot>> @NonNull Builder add(final @NonNull T data) {
67 @SuppressWarnings("unchecked")
68 final BindingDataObjectCodecTreeNode<T> dataCodec = (BindingDataObjectCodecTreeNode<T>)
69 codec.getSubtreeCodec(InstanceIdentifier.create(data.implementedInterface()));
70 rootBuilder.withChild((DataContainerChild<?, ?>) verifyNotNull(dataCodec).serialize(data));
75 public SimpleQueryExecutor build() {
76 return new SimpleQueryExecutor(codec, rootBuilder.build());