2 * Copyright © 2019 FRINX s.r.o. 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.nb.rfc8040.jersey.providers.errors;
10 import java.io.IOException;
11 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
12 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.restconf.rev170126.Errors;
13 import org.opendaylight.yangtools.yang.common.QName;
14 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
15 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
16 import org.opendaylight.yangtools.yang.data.api.schema.stream.ForwardingNormalizedNodeStreamWriter;
17 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
18 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack.Inference;
21 * Created delegating writer to special-case error-info as error-info is defined as an empty container in the restconf
22 * yang schema but we create a leaf node so we can output it. The delegate stream writer validates the node type against
23 * the schema and thus will expect a LeafSchemaNode but the schema has a ContainerSchemaNode so, to avoid an error,
24 * we override the leafNode behavior for error-info.
26 abstract class StreamWriterWithDisabledValidation extends ForwardingNormalizedNodeStreamWriter {
27 private final QName excludedQName;
29 private boolean inOurLeaf;
32 * Creation of the {@link NormalizedNode} stream-writer with {@link QName} that is excluded from type-check.
34 * @param excludedQName QName of the element that is excluded from type-check.
36 StreamWriterWithDisabledValidation(final QName excludedQName) {
37 this.excludedQName = excludedQName;
41 public final void startLeafNode(final NodeIdentifier name) throws IOException {
42 if (name.getNodeType().equals(excludedQName)) {
44 startLeafNodeWithDisabledValidation(name);
46 super.startLeafNode(name);
51 * Writing of the excluded leaf to the output stream.
53 * @param nodeIdentifier Node identifier of the leaf to be written to output stream.
54 * @throws IOException Writing of the leaf to output stream failed.
56 abstract void startLeafNodeWithDisabledValidation(NodeIdentifier nodeIdentifier) throws IOException;
59 public final void scalarValue(final Object value) throws IOException {
61 scalarValueWithDisabledValidation(value);
63 super.scalarValue(value);
68 * Writing of the value of the excluded leaf to the output stream.
70 * @param value Value of the excluded leaf.
71 * @throws IOException Writing of the leaf value to the output stream failed.
73 abstract void scalarValueWithDisabledValidation(Object value) throws IOException;
76 public final void endNode() throws IOException {
79 endNodeWithDisabledValidation();
86 * Writing of the end element with disabled validation.
88 * @throws IOException Writing of the end element to the output stream failed.
90 abstract void endNodeWithDisabledValidation() throws IOException;
92 static final Inference errorsContainerInference(final SchemaContextHandler schemaContextHandler) {
93 final var stack = SchemaInferenceStack.of(schemaContextHandler.get());
94 stack.enterGrouping(Errors.QNAME);
95 return stack.toInference();