2 * Copyright (c) 2023 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.restconf.server.api;
10 import com.google.common.collect.ImmutableList;
11 import com.google.gson.stream.JsonReader;
12 import java.io.InputStream;
13 import java.io.InputStreamReader;
14 import java.nio.charset.StandardCharsets;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
17 import org.opendaylight.yangtools.yang.common.ErrorTag;
18 import org.opendaylight.yangtools.yang.common.ErrorType;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
21 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
22 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
24 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
25 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
26 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizationResultHolder;
27 import org.opendaylight.yangtools.yang.data.impl.schema.ResultAlreadySetException;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
31 public final class JsonChildBody extends ChildBody {
32 private static final Logger LOG = LoggerFactory.getLogger(JsonChildBody.class);
34 public JsonChildBody(final InputStream inputStream) {
39 @SuppressWarnings("checkstyle:illegalCatch")
40 PrefixAndBody toPayload(final DatabindPath.Data path, final InputStream inputStream) {
41 NormalizedNode result;
43 result = toNormalizedNode(path, inputStream);
44 } catch (RestconfDocumentedException e) {
46 } catch (Exception e) {
47 LOG.debug("Error parsing json input", e);
49 if (e instanceof ResultAlreadySetException) {
50 throw new RestconfDocumentedException(
51 "Error parsing json input: Failed to create new parse result data. "
52 + "Are you creating multiple resources/subresources in POST request?", e);
56 throw new RestconfDocumentedException("Error parsing input: " + e.getMessage(), ErrorType.PROTOCOL,
57 ErrorTag.MALFORMED_MESSAGE, e);
60 final var iiToDataList = ImmutableList.<PathArgument>builder();
61 while (result instanceof ChoiceNode choice) {
62 final var childNode = choice.body().iterator().next();
63 iiToDataList.add(result.name());
67 final var resultName = result.name();
68 if (result instanceof MapEntryNode) {
69 iiToDataList.add(new NodeIdentifier(resultName.getNodeType()));
71 iiToDataList.add(resultName);
73 return new PrefixAndBody(iiToDataList.build(), result);
76 private static @NonNull NormalizedNode toNormalizedNode(final DatabindPath.Data path,
77 final InputStream inputStream) {
78 final var resultHolder = new NormalizationResultHolder();
79 final var writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
80 final var jsonParser = JsonParserStream.create(writer, path.databind().jsonCodecs(), path.inference());
81 final var reader = new JsonReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
82 jsonParser.parse(reader);
84 return resultHolder.getResult().data();