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.gson.JsonIOException;
11 import com.google.gson.JsonParseException;
12 import com.google.gson.stream.JsonReader;
13 import java.io.IOException;
14 import java.io.InputStream;
15 import java.io.InputStreamReader;
16 import java.nio.charset.StandardCharsets;
17 import org.eclipse.jdt.annotation.NonNull;
18 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
19 import org.opendaylight.yangtools.yang.common.ErrorTag;
20 import org.opendaylight.yangtools.yang.common.ErrorType;
21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
22 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
23 import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
28 * A JSON-encoded {@link ResourceBody}.
30 public final class JsonResourceBody extends ResourceBody {
31 private static final Logger LOG = LoggerFactory.getLogger(JsonResourceBody.class);
33 public JsonResourceBody(final InputStream inputStream) {
38 void streamTo(final DatabindPath.Data path, final PathArgument name, final InputStream inputStream,
39 final NormalizedNodeStreamWriter writer) throws IOException {
40 try (var jsonParser = newParser(path, writer)) {
41 try (var reader = new JsonReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8))) {
42 jsonParser.parse(reader);
43 } catch (JsonParseException e) {
44 LOG.debug("Error parsing JSON input", e);
50 private static @NonNull RestconfDocumentedException newRDE(final JsonParseException cause) {
51 final var root = cause instanceof JsonIOException jsonIO && jsonIO.getCause() instanceof IOException io ? io
53 return new RestconfDocumentedException("Error parsing input: " + root.getMessage(), ErrorType.PROTOCOL,
54 ErrorTag.MALFORMED_MESSAGE, cause);
57 private static JsonParserStream newParser(final DatabindPath.Data path, final NormalizedNodeStreamWriter writer) {
58 final var codecs = path.databind().jsonCodecs();
59 final var inference = path.inference();
60 if (inference.isEmpty()) {
61 return JsonParserStream.create(writer, codecs);
64 final var stack = inference.toSchemaInferenceStack();
66 return JsonParserStream.create(writer, codecs, stack.toInference());