2 * Copyright (c) 2014 Cisco Systems, Inc. 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.controller.sal.connect.netconf.util;
10 import com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.ImmutableMap;
13 import com.google.common.collect.Iterables;
14 import com.google.common.collect.Lists;
15 import java.io.IOException;
17 import java.util.Collections;
19 import java.util.Map.Entry;
20 import javax.xml.stream.XMLOutputFactory;
21 import javax.xml.stream.XMLStreamException;
22 import javax.xml.stream.XMLStreamWriter;
23 import javax.xml.transform.dom.DOMResult;
24 import javax.xml.transform.dom.DOMSource;
25 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
26 import org.opendaylight.controller.netconf.api.NetconfMessage;
27 import org.opendaylight.controller.netconf.util.messages.NetconfMessageUtil;
28 import org.opendaylight.controller.netconf.util.xml.XmlUtil;
29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.edit.config.input.EditContent;
30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.notification._1._0.rev080714.CreateSubscriptionInput;
31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfState;
32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfCapabilityChange;
33 import org.opendaylight.yangtools.yang.common.QName;
34 import org.opendaylight.yangtools.yang.common.RpcError;
35 import org.opendaylight.yangtools.yang.common.RpcError.ErrorSeverity;
36 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
37 import org.opendaylight.yangtools.yang.data.api.ModifyAction;
38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
39 import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
40 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
41 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
42 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
43 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
44 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
45 import org.opendaylight.yangtools.yang.data.impl.codec.xml.XMLStreamNormalizedNodeStreamWriter;
46 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
47 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeAttrBuilder;
48 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
49 import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
50 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
51 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
52 import org.slf4j.Logger;
53 import org.slf4j.LoggerFactory;
54 import org.w3c.dom.Document;
55 import org.w3c.dom.Element;
57 public class NetconfMessageTransformUtil {
59 private static final Logger LOG= LoggerFactory.getLogger(NetconfMessageTransformUtil.class);
61 public static final String MESSAGE_ID_ATTR = "message-id";
62 public static final XMLOutputFactory XML_FACTORY;
65 XML_FACTORY = XMLOutputFactory.newFactory();
66 XML_FACTORY.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, false);
69 public static final QName CREATE_SUBSCRIPTION_RPC_QNAME = QName.cachedReference(QName.create(CreateSubscriptionInput.QNAME, "create-subscription"));
70 private static final String SUBTREE = "subtree";
72 // Blank document used for creation of new DOM nodes
73 private static final Document BLANK_DOCUMENT = XmlUtil.newDocument();
75 private NetconfMessageTransformUtil() {}
77 public static final QName IETF_NETCONF_MONITORING = QName.create(NetconfState.QNAME, "ietf-netconf-monitoring");
78 public static final QName GET_DATA_QNAME = QName.create(IETF_NETCONF_MONITORING, "data");
79 public static final QName GET_SCHEMA_QNAME = QName.create(IETF_NETCONF_MONITORING, "get-schema");
80 public static final QName IETF_NETCONF_MONITORING_SCHEMA_FORMAT = QName.create(IETF_NETCONF_MONITORING, "format");
81 public static final QName IETF_NETCONF_MONITORING_SCHEMA_LOCATION = QName.create(IETF_NETCONF_MONITORING, "location");
82 public static final QName IETF_NETCONF_MONITORING_SCHEMA_IDENTIFIER = QName.create(IETF_NETCONF_MONITORING, "identifier");
83 public static final QName IETF_NETCONF_MONITORING_SCHEMA_VERSION = QName.create(IETF_NETCONF_MONITORING, "version");
84 public static final QName IETF_NETCONF_MONITORING_SCHEMA_NAMESPACE = QName.create(IETF_NETCONF_MONITORING, "namespace");
86 public static final QName IETF_NETCONF_NOTIFICATIONS = QName.create(NetconfCapabilityChange.QNAME, "ietf-netconf-notifications");
88 public static URI NETCONF_URI = URI.create("urn:ietf:params:xml:ns:netconf:base:1.0");
89 public static QName NETCONF_QNAME = QName.create(NETCONF_URI.toString(), "2011-06-01", "netconf");
90 public static QName NETCONF_DATA_QNAME = QName.create(NETCONF_QNAME, "data");
91 public static QName NETCONF_RPC_REPLY_QNAME = QName.create(NETCONF_QNAME, "rpc-reply");
92 public static QName NETCONF_OK_QNAME = QName.create(NETCONF_QNAME, "ok");
93 public static QName NETCONF_ERROR_OPTION_QNAME = QName.create(NETCONF_QNAME, "error-option");
94 public static QName NETCONF_RUNNING_QNAME = QName.create(NETCONF_QNAME, "running");
95 public static QName NETCONF_SOURCE_QNAME = QName.create(NETCONF_QNAME, "source");
96 public static QName NETCONF_CANDIDATE_QNAME = QName.create(NETCONF_QNAME, "candidate");
97 public static QName NETCONF_TARGET_QNAME = QName.create(NETCONF_QNAME, "target");
98 public static QName NETCONF_CONFIG_QNAME = QName.create(NETCONF_QNAME, "config");
99 public static QName NETCONF_COMMIT_QNAME = QName.create(NETCONF_QNAME, "commit");
100 public static QName NETCONF_VALIDATE_QNAME = QName.create(NETCONF_QNAME, "validate");
101 public static QName NETCONF_COPY_CONFIG_QNAME = QName.create(NETCONF_QNAME, "copy-config");
102 public static QName NETCONF_OPERATION_QNAME = QName.create(NETCONF_QNAME, "operation");
103 public static QName NETCONF_DEFAULT_OPERATION_QNAME = QName.create(NETCONF_OPERATION_QNAME, "default-operation");
104 public static QName NETCONF_EDIT_CONFIG_QNAME = QName.create(NETCONF_QNAME, "edit-config");
105 public static QName NETCONF_GET_CONFIG_QNAME = QName.create(NETCONF_QNAME, "get-config");
106 public static QName NETCONF_DISCARD_CHANGES_QNAME = QName.create(NETCONF_QNAME, "discard-changes");
107 public static QName NETCONF_TYPE_QNAME = QName.create(NETCONF_QNAME, "type");
108 public static QName NETCONF_FILTER_QNAME = QName.create(NETCONF_QNAME, "filter");
109 public static QName NETCONF_GET_QNAME = QName.create(NETCONF_QNAME, "get");
110 public static QName NETCONF_RPC_QNAME = QName.create(NETCONF_QNAME, "rpc");
112 public static URI NETCONF_ROLLBACK_ON_ERROR_URI = URI
113 .create("urn:ietf:params:netconf:capability:rollback-on-error:1.0");
114 public static String ROLLBACK_ON_ERROR_OPTION = "rollback-on-error";
116 public static URI NETCONF_CANDIDATE_URI = URI
117 .create("urn:ietf:params:netconf:capability:candidate:1.0");
119 public static URI NETCONF_NOTIFICATONS_URI = URI
120 .create("urn:ietf:params:netconf:capability:notification:1.0");
122 public static URI NETCONF_RUNNING_WRITABLE_URI = URI
123 .create("urn:ietf:params:netconf:capability:writable-running:1.0");
125 public static QName NETCONF_LOCK_QNAME = QName.create(NETCONF_QNAME, "lock");
126 public static QName NETCONF_UNLOCK_QNAME = QName.create(NETCONF_QNAME, "unlock");
128 // Discard changes message
129 public static final ContainerNode DISCARD_CHANGES_RPC_CONTENT =
130 Builders.containerBuilder().withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(NETCONF_DISCARD_CHANGES_QNAME)).build();
132 // Commit changes message
133 public static final ContainerNode COMMIT_RPC_CONTENT =
134 Builders.containerBuilder().withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(NETCONF_COMMIT_QNAME)).build();
137 public static final ContainerNode GET_RPC_CONTENT =
138 Builders.containerBuilder().withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(NETCONF_GET_QNAME)).build();
140 // Create-subscription changes message
141 public static final ContainerNode CREATE_SUBSCRIPTION_RPC_CONTENT =
142 Builders.containerBuilder().withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(CREATE_SUBSCRIPTION_RPC_QNAME)).build();
144 public static DataContainerChild<?, ?> toFilterStructure(final YangInstanceIdentifier identifier, final SchemaContext ctx) {
145 final NormalizedNodeAttrBuilder<YangInstanceIdentifier.NodeIdentifier, DOMSource, AnyXmlNode> anyXmlBuilder = Builders.anyXmlBuilder().withNodeIdentifier(toId(NETCONF_FILTER_QNAME));
146 anyXmlBuilder.withAttributes(Collections.singletonMap(NETCONF_TYPE_QNAME, SUBTREE));
148 final NormalizedNode<?, ?> filterContent = InstanceIdToNodes.serialize(ctx, identifier);
150 final Element element = XmlUtil.createElement(BLANK_DOCUMENT, NETCONF_FILTER_QNAME.getLocalName(), Optional.of(NETCONF_FILTER_QNAME.getNamespace().toString()));
151 element.setAttributeNS(NETCONF_FILTER_QNAME.getNamespace().toString(), NETCONF_TYPE_QNAME.getLocalName(), "subtree");
154 writeNormalizedNode(filterContent, new DOMResult(element), SchemaPath.ROOT, ctx);
155 } catch (IOException | XMLStreamException e) {
156 throw new IllegalStateException("Unable to serialize filter element for path " + identifier, e);
158 anyXmlBuilder.withValue(new DOMSource(element));
160 return anyXmlBuilder.build();
163 public static void checkValidReply(final NetconfMessage input, final NetconfMessage output)
164 throws NetconfDocumentedException {
165 final String inputMsgId = input.getDocument().getDocumentElement().getAttribute(MESSAGE_ID_ATTR);
166 final String outputMsgId = output.getDocument().getDocumentElement().getAttribute(MESSAGE_ID_ATTR);
168 if(inputMsgId.equals(outputMsgId) == false) {
169 final Map<String,String> errorInfo = ImmutableMap.<String,String>builder()
170 .put( "actual-message-id", outputMsgId )
171 .put( "expected-message-id", inputMsgId )
174 throw new NetconfDocumentedException( "Response message contained unknown \"message-id\"",
175 null, NetconfDocumentedException.ErrorType.protocol,
176 NetconfDocumentedException.ErrorTag.bad_attribute,
177 NetconfDocumentedException.ErrorSeverity.error, errorInfo );
181 public static void checkSuccessReply(final NetconfMessage output) throws NetconfDocumentedException {
182 if(NetconfMessageUtil.isErrorMessage(output)) {
183 throw NetconfDocumentedException.fromXMLDocument(output.getDocument());
187 public static RpcError toRpcError( final NetconfDocumentedException ex ) {
188 final StringBuilder infoBuilder = new StringBuilder();
189 final Map<String, String> errorInfo = ex.getErrorInfo();
190 if(errorInfo != null) {
191 for( final Entry<String,String> e: errorInfo.entrySet() ) {
192 infoBuilder.append( '<' ).append( e.getKey() ).append( '>' ).append( e.getValue() )
193 .append( "</" ).append( e.getKey() ).append( '>' );
198 final ErrorSeverity severity = toRpcErrorSeverity( ex.getErrorSeverity() );
199 return severity == ErrorSeverity.ERROR ?
200 RpcResultBuilder.newError(
201 toRpcErrorType( ex.getErrorType() ), ex.getErrorTag().getTagValue(),
202 ex.getLocalizedMessage(), null, infoBuilder.toString(), ex.getCause() ) :
203 RpcResultBuilder.newWarning(
204 toRpcErrorType( ex.getErrorType() ), ex.getErrorTag().getTagValue(),
205 ex.getLocalizedMessage(), null, infoBuilder.toString(), ex.getCause() );
208 private static ErrorSeverity toRpcErrorSeverity( final NetconfDocumentedException.ErrorSeverity severity ) {
211 return RpcError.ErrorSeverity.WARNING;
213 return RpcError.ErrorSeverity.ERROR;
217 private static RpcError.ErrorType toRpcErrorType(final NetconfDocumentedException.ErrorType type) {
220 return RpcError.ErrorType.PROTOCOL;
222 return RpcError.ErrorType.RPC;
224 return RpcError.ErrorType.TRANSPORT;
226 return RpcError.ErrorType.APPLICATION;
230 public static YangInstanceIdentifier.NodeIdentifier toId(final YangInstanceIdentifier.PathArgument qname) {
231 return toId(qname.getNodeType());
234 public static YangInstanceIdentifier.NodeIdentifier toId(final QName nodeType) {
235 return new YangInstanceIdentifier.NodeIdentifier(nodeType);
238 public static Element getDataSubtree(final Document doc) {
239 return (Element) doc.getElementsByTagNameNS(NETCONF_URI.toString(), "data").item(0);
242 public static boolean isDataRetrievalOperation(final QName rpc) {
243 return NETCONF_URI.equals(rpc.getNamespace())
244 && (rpc.getLocalName().equals(NETCONF_GET_CONFIG_QNAME.getLocalName()) || rpc.getLocalName().equals(
245 NETCONF_GET_QNAME.getLocalName()));
248 public static ContainerSchemaNode createSchemaForDataRead(final SchemaContext schemaContext) {
249 final QName config = QName.create(NETCONF_EDIT_CONFIG_QNAME, "data");
250 return new NodeContainerProxy(config, schemaContext.getChildNodes());
253 public static ContainerSchemaNode createSchemaForNotification(final NotificationDefinition next) {
254 return new NodeContainerProxy(next.getQName(), next.getChildNodes(), next.getAvailableAugmentations());
257 public static ContainerNode wrap(final QName name, final DataContainerChild<?, ?>... node) {
258 return Builders.containerBuilder().withNodeIdentifier(toId(name)).withValue(Lists.newArrayList(node)).build();
261 public static DataContainerChild<?, ?> createEditConfigStructure(final SchemaContext ctx, final YangInstanceIdentifier dataPath,
262 final Optional<ModifyAction> operation, final Optional<NormalizedNode<?, ?>> lastChildOverride) {
263 final NormalizedNode<?, ?> configContent;
265 if(Iterables.isEmpty(dataPath.getPathArguments())) {
266 Preconditions.checkArgument(lastChildOverride.isPresent(), "Data has to be present when creating structure for top level element");
267 Preconditions.checkArgument(lastChildOverride.get() instanceof DataContainerChild<?, ?>,
268 "Data has to be either container or a list node when creating structure for top level element, but was: %s", lastChildOverride.get());
269 configContent = lastChildOverride.get();
271 configContent = InstanceIdToNodes.serialize(ctx, dataPath, lastChildOverride, operation);
274 final Element element = XmlUtil.createElement(BLANK_DOCUMENT, NETCONF_CONFIG_QNAME.getLocalName(), Optional.of(NETCONF_CONFIG_QNAME.getNamespace().toString()));
276 writeNormalizedNode(configContent, new DOMResult(element), SchemaPath.ROOT, ctx);
277 } catch (IOException | XMLStreamException e) {
278 throw new IllegalStateException("Unable to serialize edit config content element for path " + dataPath, e);
280 final DOMSource value = new DOMSource(element);
282 return Builders.choiceBuilder().withNodeIdentifier(toId(EditContent.QNAME)).withChild(
283 Builders.anyXmlBuilder().withNodeIdentifier(toId(NETCONF_CONFIG_QNAME)).withValue(value).build()).build();
286 public static SchemaPath toPath(final QName rpc) {
287 return SchemaPath.create(true, rpc);
290 public static String modifyOperationToXmlString(final ModifyAction operation) {
291 return operation.name().toLowerCase();
294 // FIXME similar code is in netconf-notifications-impl , DRY
295 public static void writeNormalizedNode(final NormalizedNode<?, ?> normalized, final DOMResult result, final SchemaPath schemaPath, final SchemaContext context)
296 throws IOException, XMLStreamException {
297 NormalizedNodeWriter normalizedNodeWriter = null;
298 NormalizedNodeStreamWriter normalizedNodeStreamWriter = null;
299 XMLStreamWriter writer = null;
301 writer = XML_FACTORY.createXMLStreamWriter(result);
302 normalizedNodeStreamWriter = XMLStreamNormalizedNodeStreamWriter.create(writer, context, schemaPath);
303 normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(normalizedNodeStreamWriter);
305 normalizedNodeWriter.write(normalized);
307 normalizedNodeWriter.flush();
310 if(normalizedNodeWriter != null) {
311 normalizedNodeWriter.close();
313 if(normalizedNodeStreamWriter != null) {
314 normalizedNodeStreamWriter.close();
319 } catch (final Exception e) {
320 LOG.warn("Unable to close resource properly", e);