+++ /dev/null
-/*
- * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.controller.messagebus.eventsources.netconf;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.ConcurrentHashMap;
-
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-import javax.xml.transform.dom.DOMSource;
-
-import org.opendaylight.controller.md.sal.dom.api.DOMNotification;
-import org.opendaylight.controller.md.sal.dom.api.DOMNotificationListener;
-import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventaggregator.rev141202.TopicId;
-import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.EventSourceStatus;
-import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.EventSourceStatusNotification;
-import org.opendaylight.yang.gen.v1.urn.cisco.params.xml.ns.yang.messagebus.eventsource.rev141202.EventSourceStatusNotificationBuilder;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
-import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-
-public class ConnectionNotificationTopicRegistration extends NotificationTopicRegistration {
-
- private static final Logger LOG = LoggerFactory.getLogger(ConnectionNotificationTopicRegistration.class);
-
- public static final SchemaPath EVENT_SOURCE_STATUS_PATH = SchemaPath.create(true, QName.create(EventSourceStatusNotification.QNAME, "event-source-status"));
- private static final NodeIdentifier EVENT_SOURCE_STATUS_ARG = new NodeIdentifier(EventSourceStatusNotification.QNAME);
- private static final String XMLNS_ATTRIBUTE_KEY = "xmlns";
- private static final String XMLNS_URI = "http://www.w3.org/2000/xmlns/";
-
- private final DOMNotificationListener domNotificationListener;
- private ConcurrentHashMap<SchemaPath, ArrayList<TopicId>> notificationTopicMap = new ConcurrentHashMap<>();
-
- public ConnectionNotificationTopicRegistration(String SourceName, DOMNotificationListener domNotificationListener) {
- super(NotificationSourceType.ConnectionStatusChange, SourceName, EVENT_SOURCE_STATUS_PATH.getLastComponent().getNamespace().toString());
- this.domNotificationListener = Preconditions.checkNotNull(domNotificationListener);
- LOG.info("Connection notification source has been initialized.");
- setActive(true);
- setReplaySupported(false);
- }
-
- @Override
- public void close() throws Exception {
- if(isActive()){
- LOG.debug("Connection notification - publish Deactive");
- publishNotification(EventSourceStatus.Deactive);
- notificationTopicMap.clear();
- setActive(false);
- }
- }
-
- @Override
- void activateNotificationSource() {
- LOG.debug("Connection notification - publish Active");
- publishNotification(EventSourceStatus.Active);
- }
-
- @Override
- void deActivateNotificationSource() {
- LOG.debug("Connection notification - publish Inactive");
- publishNotification(EventSourceStatus.Inactive);
- }
-
- @Override
- void reActivateNotificationSource() {
- LOG.debug("Connection notification - reactivate - publish active");
- publishNotification(EventSourceStatus.Active);
- }
-
- @Override
- boolean registerNotificationTopic(SchemaPath notificationPath, TopicId topicId) {
- if(checkNotificationPath(notificationPath) == false){
- LOG.debug("Bad SchemaPath for notification try to register");
- return false;
- }
- ArrayList<TopicId> topicIds = getNotificationTopicIds(notificationPath);
- if(topicIds == null){
- topicIds = new ArrayList<>();
- topicIds.add(topicId);
- } else {
- if(topicIds.contains(topicId) == false){
- topicIds.add(topicId);
- }
- }
- notificationTopicMap.put(notificationPath, topicIds);
- return true;
- }
-
- @Override
- ArrayList<TopicId> getNotificationTopicIds(SchemaPath notificationPath) {
- return notificationTopicMap.get(notificationPath);
- }
-
- @Override
- synchronized void unRegisterNotificationTopic(TopicId topicId) {
- List<SchemaPath> notificationPathToRemove = new ArrayList<>();
- for(SchemaPath notifKey : notificationTopicMap.keySet()){
- ArrayList<TopicId> topicList = notificationTopicMap.get(notifKey);
- if(topicList != null){
- topicList.remove(topicId);
- if(topicList.isEmpty()){
- notificationPathToRemove.add(notifKey);
- }
- }
- }
- for(SchemaPath notifKey : notificationPathToRemove){
- notificationTopicMap.remove(notifKey);
- }
- }
-
- private void publishNotification(EventSourceStatus eventSourceStatus){
-
- final EventSourceStatusNotification notification = new EventSourceStatusNotificationBuilder()
- .setStatus(eventSourceStatus)
- .build();
- domNotificationListener.onNotification(createNotification(notification));
- }
-
- private DOMNotification createNotification(EventSourceStatusNotification notification){
- final ContainerNode cn = Builders.containerBuilder()
- .withNodeIdentifier(EVENT_SOURCE_STATUS_ARG)
- .withChild(encapsulate(notification))
- .build();
- DOMNotification dn = new DOMNotification() {
-
- @Override
- public SchemaPath getType() {
- return EVENT_SOURCE_STATUS_PATH;
- }
-
- @Override
- public ContainerNode getBody() {
- return cn;
- }
- };
- return dn;
- }
-
- private AnyXmlNode encapsulate(EventSourceStatusNotification notification){
-
- DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
- DocumentBuilder docBuilder;
-
- try {
- docBuilder = docFactory.newDocumentBuilder();
- } catch (ParserConfigurationException e) {
- throw new IllegalStateException("Can not create XML DocumentBuilder");
- }
-
- Document doc = docBuilder.newDocument();
-
- final Optional<String> namespace = Optional.of(EVENT_SOURCE_STATUS_ARG.getNodeType().getNamespace().toString());
- final Element rootElement = createElement(doc , "EventSourceStatusNotification", namespace);
-
- final Element sourceElement = doc.createElement("status");
- sourceElement.appendChild(doc.createTextNode(notification.getStatus().name()));
- rootElement.appendChild(sourceElement);
-
-
- return Builders.anyXmlBuilder().withNodeIdentifier(EVENT_SOURCE_STATUS_ARG)
- .withValue(new DOMSource(rootElement))
- .build();
-
- }
-
- // Helper to create root XML element with correct namespace and attribute
- private Element createElement(final Document document, final String qName, final Optional<String> namespaceURI) {
- if(namespaceURI.isPresent()) {
- final Element element = document.createElementNS(namespaceURI.get(), qName);
- String name = XMLNS_ATTRIBUTE_KEY;
- if(element.getPrefix() != null) {
- name += ":" + element.getPrefix();
- }
- element.setAttributeNS(XMLNS_URI, name, namespaceURI.get());
- return element;
- }
- return document.createElement(qName);
- }
-}
Code Review / controller.git / blobdiff