2 * Copyright (c) 2015 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
9 package org.opendaylight.controller.netconf.notifications.impl.ops;
11 import com.google.common.base.Preconditions;
12 import java.io.IOException;
13 import javax.xml.stream.XMLStreamException;
14 import javax.xml.transform.dom.DOMResult;
15 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
16 import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
17 import org.opendaylight.controller.netconf.mapping.api.HandlingPriority;
18 import org.opendaylight.controller.netconf.mapping.api.NetconfOperationChainedExecution;
19 import org.opendaylight.controller.netconf.notifications.NetconfNotificationRegistry;
20 import org.opendaylight.controller.netconf.util.mapping.AbstractNetconfOperation;
21 import org.opendaylight.controller.netconf.util.xml.XmlElement;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.Netconf;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.NetconfBuilder;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.Streams;
25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
26 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
27 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
28 import org.w3c.dom.Document;
29 import org.w3c.dom.Element;
32 * Serialize the subtree for netconf notifications into the response of get rpc.
33 * This operation just adds its subtree into the common response of get rpc.
35 public class Get extends AbstractNetconfOperation implements AutoCloseable {
37 private static final String GET = "get";
38 private static final InstanceIdentifier<Netconf> NETCONF_SUBTREE_INSTANCE_IDENTIFIER = InstanceIdentifier.builder(Netconf.class).build();
40 private final NetconfNotificationRegistry notificationRegistry;
42 public Get(final String netconfSessionIdForReporting, final NetconfNotificationRegistry notificationRegistry) {
43 super(netconfSessionIdForReporting);
44 Preconditions.checkNotNull(notificationRegistry);
45 this.notificationRegistry = notificationRegistry;
49 protected String getOperationName() {
54 public Document handle(final Document requestMessage, final NetconfOperationChainedExecution subsequentOperation) throws NetconfDocumentedException {
55 final Document partialResponse = subsequentOperation.execute(requestMessage);
56 final Streams availableStreams = notificationRegistry.getNotificationPublishers();
57 if(availableStreams.getStream().isEmpty() == false) {
58 serializeStreamsSubtree(partialResponse, availableStreams);
60 return partialResponse;
63 static void serializeStreamsSubtree(final Document partialResponse, final Streams availableStreams) throws NetconfDocumentedException {
64 final Netconf netconfSubtree = new NetconfBuilder().setStreams(availableStreams).build();
65 final NormalizedNode<?, ?> normalized = toNormalized(netconfSubtree);
67 final DOMResult result = new DOMResult(getPlaceholder(partialResponse));
70 NotificationsTransformUtil.writeNormalizedNode(normalized, result, SchemaPath.ROOT);
71 } catch (final XMLStreamException | IOException e) {
72 throw new IllegalStateException("Unable to serialize " + netconfSubtree, e);
76 private static Element getPlaceholder(final Document innerResult)
77 throws NetconfDocumentedException {
78 final XmlElement rootElement = XmlElement.fromDomElementWithExpected(
79 innerResult.getDocumentElement(), XmlNetconfConstants.RPC_REPLY_KEY, XmlNetconfConstants.RFC4741_TARGET_NAMESPACE);
80 return rootElement.getOnlyChildElement(XmlNetconfConstants.DATA_KEY).getDomElement();
83 private static NormalizedNode<?, ?> toNormalized(final Netconf netconfSubtree) {
84 return NotificationsTransformUtil.CODEC_REGISTRY.toNormalizedNode(NETCONF_SUBTREE_INSTANCE_IDENTIFIER, netconfSubtree).getValue();
88 protected Element handle(final Document document, final XmlElement message, final NetconfOperationChainedExecution subsequentOperation)
89 throws NetconfDocumentedException {
90 throw new UnsupportedOperationException("Never gets called");
94 protected HandlingPriority getHandlingPriority() {
95 return HandlingPriority.HANDLE_WITH_DEFAULT_PRIORITY.increasePriority(2);
99 public void close() throws Exception {