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.netconf.notifications.impl.ops;
11 import com.google.common.base.Optional;
12 import com.google.common.base.Preconditions;
13 import com.google.common.collect.Collections2;
14 import com.google.common.collect.Iterables;
15 import java.io.IOException;
16 import java.util.Collections;
17 import java.util.Date;
18 import javassist.ClassPool;
19 import javax.xml.stream.XMLStreamException;
20 import javax.xml.transform.dom.DOMResult;
21 import org.opendaylight.mdsal.binding.dom.codec.gen.impl.StreamWriterGenerator;
22 import org.opendaylight.mdsal.binding.dom.codec.impl.BindingNormalizedNodeCodecRegistry;
23 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
24 import org.opendaylight.mdsal.binding.generator.util.BindingRuntimeContext;
25 import org.opendaylight.mdsal.binding.generator.util.JavassistUtils;
26 import org.opendaylight.netconf.api.xml.XmlUtil;
27 import org.opendaylight.netconf.notifications.NetconfNotification;
28 import org.opendaylight.netconf.util.NetconfUtil;
29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.$YangModuleInfoImpl;
30 import org.opendaylight.yangtools.yang.binding.Notification;
31 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
32 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
33 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
34 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
37 import org.w3c.dom.Document;
39 public final class NotificationsTransformUtil {
41 private static final Logger LOG = LoggerFactory.getLogger(NotificationsTransformUtil.class);
43 private NotificationsTransformUtil() {}
45 static final SchemaContext NOTIFICATIONS_SCHEMA_CTX;
46 static final BindingNormalizedNodeCodecRegistry CODEC_REGISTRY;
47 static final RpcDefinition CREATE_SUBSCRIPTION_RPC;
51 final ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();
52 moduleInfoBackedContext.addModuleInfos(Collections.singletonList($YangModuleInfoImpl.getInstance()));
53 moduleInfoBackedContext.addModuleInfos(Collections.singletonList(org.opendaylight.yang.gen.v1.urn.ietf.params
54 .xml.ns.yang.ietf.netconf.notifications.rev120206.$YangModuleInfoImpl.getInstance()));
55 final Optional<SchemaContext> schemaContextOptional = moduleInfoBackedContext.tryToCreateSchemaContext();
56 Preconditions.checkState(schemaContextOptional.isPresent());
57 NOTIFICATIONS_SCHEMA_CTX = schemaContextOptional.get();
59 CREATE_SUBSCRIPTION_RPC = Preconditions.checkNotNull(findCreateSubscriptionRpc());
61 Preconditions.checkNotNull(CREATE_SUBSCRIPTION_RPC);
63 final JavassistUtils javassist = JavassistUtils.forClassPool(ClassPool.getDefault());
64 CODEC_REGISTRY = new BindingNormalizedNodeCodecRegistry(StreamWriterGenerator.create(javassist));
65 CODEC_REGISTRY.onBindingRuntimeContextUpdated(BindingRuntimeContext.create(moduleInfoBackedContext,
66 NOTIFICATIONS_SCHEMA_CTX));
69 private static RpcDefinition findCreateSubscriptionRpc() {
70 return Iterables.getFirst(Collections2.filter(NOTIFICATIONS_SCHEMA_CTX.getOperations(),
71 input -> input.getQName().getLocalName().equals(CreateSubscription.CREATE_SUBSCRIPTION)), null);
75 * Transform base notification for capabilities into NetconfNotification.
77 public static NetconfNotification transform(final Notification notification, SchemaPath path) {
78 return transform(notification, Optional.<Date>absent(), path);
81 public static NetconfNotification transform(final Notification notification,
82 final Date eventTime, SchemaPath path) {
83 return transform(notification, Optional.fromNullable(eventTime), path);
86 private static NetconfNotification transform(final Notification notification,
87 final Optional<Date> eventTime, SchemaPath path) {
88 final ContainerNode containerNode = CODEC_REGISTRY.toNormalizedNodeNotification(notification);
89 final DOMResult result = new DOMResult(XmlUtil.newDocument());
91 NetconfUtil.writeNormalizedNode(containerNode, result, path, NOTIFICATIONS_SCHEMA_CTX);
92 } catch (final XMLStreamException | IOException e) {
93 throw new IllegalStateException("Unable to serialize " + notification, e);
95 final Document node = (Document) result.getNode();
96 return eventTime.isPresent() ? new NetconfNotification(node, eventTime.get()) : new NetconfNotification(node);