import com.google.common.eventbus.AsyncEventBus;
import com.google.common.eventbus.EventBus;
import com.google.common.eventbus.Subscribe;
-
import io.netty.channel.Channel;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import io.netty.util.internal.ConcurrentSet;
-
import java.io.ByteArrayOutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.util.Set;
import java.util.concurrent.Executors;
import java.util.regex.Pattern;
-
import javax.activation.UnsupportedDataTypeException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
-
import org.opendaylight.controller.md.sal.common.api.data.DataChangeEvent;
import org.opendaylight.controller.sal.core.api.data.DataChangeListener;
import org.opendaylight.controller.sal.rest.impl.XmlMapper;
import org.w3c.dom.Node;
/**
- * {@link ListenerAdapter} is responsible to track events, which occurred by
- * changing data in data source.
+ * {@link ListenerAdapter} is responsible to track events, which occurred by changing data in data source.
*/
public class ListenerAdapter implements DataChangeListener {
private static final Pattern RFC3339_PATTERN = Pattern.compile("(\\d\\d)(\\d\\d)$");
private final XmlMapper xmlMapper = new XmlMapper();
- private final SimpleDateFormat rfc3339 = new SimpleDateFormat(
- "yyyy-MM-dd'T'hh:mm:ssZ");
+ private final SimpleDateFormat rfc3339 = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ssZ");
private final InstanceIdentifier path;
private ListenerRegistration<DataChangeListener> registration;
private final EventBus eventBus;
private final EventBusChangeRecorder eventBusChangeRecorder;
-
/**
- * Creates new {@link ListenerAdapter} listener specified by path and stream
- * name.
+ * Creates new {@link ListenerAdapter} listener specified by path and stream name.
*
* @param path
* Path to data in data store.
*/
ListenerAdapter(final InstanceIdentifier path, final String streamName) {
Preconditions.checkNotNull(path);
- Preconditions
- .checkArgument(streamName != null && !streamName.isEmpty());
+ Preconditions.checkArgument(streamName != null && !streamName.isEmpty());
this.path = path;
this.streamName = streamName;
eventBus = new AsyncEventBus(Executors.newSingleThreadExecutor());
}
@Override
- public void onDataChanged(
- final DataChangeEvent<InstanceIdentifier, CompositeNode> change) {
- if (!change.getCreatedConfigurationData().isEmpty()
- || !change.getCreatedOperationalData().isEmpty()
- || !change.getUpdatedConfigurationData().isEmpty()
- || !change.getUpdatedOperationalData().isEmpty()
- || !change.getRemovedConfigurationData().isEmpty()
- || !change.getRemovedOperationalData().isEmpty()) {
+ public void onDataChanged(final DataChangeEvent<InstanceIdentifier, CompositeNode> change) {
+ if (!change.getCreatedConfigurationData().isEmpty() || !change.getCreatedOperationalData().isEmpty()
+ || !change.getUpdatedConfigurationData().isEmpty() || !change.getUpdatedOperationalData().isEmpty()
+ || !change.getRemovedConfigurationData().isEmpty() || !change.getRemovedOperationalData().isEmpty()) {
String xml = prepareXmlFrom(change);
Event event = new Event(EventType.NOTIFY);
event.setData(xml);
}
} else if (event.getType() == EventType.DEREGISTER) {
subscribers.remove(event.getSubscriber());
- Notificator
- .removeListenerIfNoSubscriberExists(ListenerAdapter.this);
+ Notificator.removeListenerIfNoSubscriberExists(ListenerAdapter.this);
} else if (event.getType() == EventType.NOTIFY) {
for (Channel subscriber : subscribers) {
if (subscriber.isActive()) {
- LOG.debug("Data are sent to subscriber {}:",
- subscriber.remoteAddress());
- subscriber.writeAndFlush(new TextWebSocketFrame(event
- .getData()));
+ LOG.debug("Data are sent to subscriber {}:", subscriber.remoteAddress());
+ subscriber.writeAndFlush(new TextWebSocketFrame(event.getData()));
} else {
- LOG.debug(
- "Subscriber {} is removed - channel is not active yet.",
- subscriber.remoteAddress());
+ LOG.debug("Subscriber {} is removed - channel is not active yet.", subscriber.remoteAddress());
subscribers.remove(subscriber);
}
}
}
/**
- * Represents event of specific {@link EventType} type, holds data and
- * {@link Channel} subscriber.
+ * Represents event of specific {@link EventType} type, holds data and {@link Channel} subscriber.
*/
private final class Event {
private final EventType type;
* Type of the event.
*/
private enum EventType {
- REGISTER, DEREGISTER, NOTIFY;
+ REGISTER,
+ DEREGISTER,
+ NOTIFY;
}
/**
* DataChangeEvent
* @return Data in printable form.
*/
- private String prepareXmlFrom(
- final DataChangeEvent<InstanceIdentifier, CompositeNode> change) {
+ private String prepareXmlFrom(final DataChangeEvent<InstanceIdentifier, CompositeNode> change) {
Document doc = createDocument();
- Element notificationElement = doc.createElementNS(
- "urn:ietf:params:xml:ns:netconf:notification:1.0",
+ Element notificationElement = doc.createElementNS("urn:ietf:params:xml:ns:netconf:notification:1.0",
"notification");
doc.appendChild(notificationElement);
notificationElement.appendChild(eventTimeElement);
Element dataChangedNotificationEventElement = doc.createElementNS(
- "urn:opendaylight:params:xml:ns:yang:controller:md:sal:remote",
- "data-changed-notification");
- addValuesToDataChangedNotificationEventElement(doc,
- dataChangedNotificationEventElement, change);
+ "urn:opendaylight:params:xml:ns:yang:controller:md:sal:remote", "data-changed-notification");
+ addValuesToDataChangedNotificationEventElement(doc, dataChangedNotificationEventElement, change);
notificationElement.appendChild(dataChangedNotificationEventElement);
try {
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
- transformer.transform(new DOMSource(doc), new StreamResult(
- new OutputStreamWriter(out, Charsets.UTF_8)));
+ transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(out, Charsets.UTF_8)));
byte[] charData = out.toByteArray();
return new String(charData, "UTF-8");
} catch (TransformerException | UnsupportedEncodingException e) {
private void addValuesToDataChangedNotificationEventElement(final Document doc,
final Element dataChangedNotificationEventElement,
final DataChangeEvent<InstanceIdentifier, CompositeNode> change) {
- addValuesFromDataToElement(doc, change.getCreatedConfigurationData(),
- dataChangedNotificationEventElement, Store.CONFIG,
- Operation.CREATED);
- addValuesFromDataToElement(doc, change.getCreatedOperationalData(),
- dataChangedNotificationEventElement, Store.OPERATION,
- Operation.CREATED);
+ addValuesFromDataToElement(doc, change.getCreatedConfigurationData(), dataChangedNotificationEventElement,
+ Store.CONFIG, Operation.CREATED);
+ addValuesFromDataToElement(doc, change.getCreatedOperationalData(), dataChangedNotificationEventElement,
+ Store.OPERATION, Operation.CREATED);
if (change.getCreatedConfigurationData().isEmpty()) {
- addValuesFromDataToElement(doc,
- change.getUpdatedConfigurationData(),
- dataChangedNotificationEventElement, Store.CONFIG,
- Operation.UPDATED);
+ addValuesFromDataToElement(doc, change.getUpdatedConfigurationData(), dataChangedNotificationEventElement,
+ Store.CONFIG, Operation.UPDATED);
}
if (change.getCreatedOperationalData().isEmpty()) {
- addValuesFromDataToElement(doc, change.getUpdatedOperationalData(),
- dataChangedNotificationEventElement, Store.OPERATION,
- Operation.UPDATED);
+ addValuesFromDataToElement(doc, change.getUpdatedOperationalData(), dataChangedNotificationEventElement,
+ Store.OPERATION, Operation.UPDATED);
}
- addValuesFromDataToElement(doc, change.getRemovedConfigurationData(),
- dataChangedNotificationEventElement, Store.CONFIG,
- Operation.DELETED);
- addValuesFromDataToElement(doc, change.getRemovedOperationalData(),
- dataChangedNotificationEventElement, Store.OPERATION,
- Operation.DELETED);
+ addValuesFromDataToElement(doc, change.getRemovedConfigurationData(), dataChangedNotificationEventElement,
+ Store.CONFIG, Operation.DELETED);
+ addValuesFromDataToElement(doc, change.getRemovedOperationalData(), dataChangedNotificationEventElement,
+ Store.OPERATION, Operation.DELETED);
}
/**
* @param operation
* {@link Operation}
*/
- private void addValuesFromDataToElement(final Document doc,
- final Set<InstanceIdentifier> data, final Element element, final Store store,
- final Operation operation) {
+ private void addValuesFromDataToElement(final Document doc, final Set<InstanceIdentifier> data,
+ final Element element, final Store store, final Operation operation) {
if (data == null || data.isEmpty()) {
return;
}
for (InstanceIdentifier path : data) {
- Node node = createDataChangeEventElement(doc, path, null, store,
- operation);
+ Node node = createDataChangeEventElement(doc, path, null, store, operation);
element.appendChild(node);
}
}
* @param operation
* {@link Operation}
*/
- private void addValuesFromDataToElement(final Document doc,
- final Map<InstanceIdentifier, CompositeNode> data, final Element element,
- final Store store, final Operation operation) {
+ private void addValuesFromDataToElement(final Document doc, final Map<InstanceIdentifier, CompositeNode> data,
+ final Element element, final Store store, final Operation operation) {
if (data == null || data.isEmpty()) {
return;
}
for (Entry<InstanceIdentifier, CompositeNode> entry : data.entrySet()) {
- Node node = createDataChangeEventElement(doc, entry.getKey(),
- entry.getValue(), store, operation);
+ Node node = createDataChangeEventElement(doc, entry.getKey(), entry.getValue(), store, operation);
element.appendChild(node);
}
}
* {@link Operation}
* @return {@link Node} node represented by changed event element.
*/
- private Node createDataChangeEventElement(final Document doc,
- final InstanceIdentifier path, final CompositeNode data, final Store store,
- final Operation operation) {
+ private Node createDataChangeEventElement(final Document doc, final InstanceIdentifier path,
+ final CompositeNode data, final Store store, final Operation operation) {
Element dataChangeEventElement = doc.createElement("data-change-event");
Element pathElement = doc.createElement("path");
* @return Data in XML format.
*/
private Node translateToXml(final InstanceIdentifier path, final CompositeNode data) {
- DataNodeContainer schemaNode = ControllerContext.getInstance()
- .getDataNodeContainerFor(path);
+ DataNodeContainer schemaNode = ControllerContext.getInstance().getDataNodeContainerFor(path);
if (schemaNode == null) {
LOG.info(
"Path '{}' contains node with unsupported type (supported type is Container or List) or some node was not found.",
Document xml = xmlMapper.write(data, schemaNode);
return xml.getFirstChild();
} catch (UnsupportedDataTypeException e) {
- LOG.error(
- "Error occured during translation of notification to XML.",
- e);
+ LOG.error("Error occured during translation of notification to XML.", e);
return null;
}
}
* @param element
* {@link Element}
*/
- private void addPathAsValueToElement(final InstanceIdentifier path,
- final Element element) {
+ private void addPathAsValueToElement(final InstanceIdentifier path, final Element element) {
// Map< key = namespace, value = prefix>
Map<String, String> prefixes = new HashMap<>();
InstanceIdentifier instanceIdentifier = path;
// FIXME: BUG-1281: this is duplicated code from yangtools (BUG-1275)
for (PathArgument pathArgument : instanceIdentifier.getPathArguments()) {
textContent.append("/");
- writeIdentifierWithNamespacePrefix(element, textContent,
- pathArgument.getNodeType(), prefixes);
+ writeIdentifierWithNamespacePrefix(element, textContent, pathArgument.getNodeType(), prefixes);
if (pathArgument instanceof NodeIdentifierWithPredicates) {
- Map<QName, Object> predicates = ((NodeIdentifierWithPredicates) pathArgument)
- .getKeyValues();
+ Map<QName, Object> predicates = ((NodeIdentifierWithPredicates) pathArgument).getKeyValues();
for (QName keyValue : predicates.keySet()) {
- String predicateValue = String.valueOf(predicates
- .get(keyValue));
+ String predicateValue = String.valueOf(predicates.get(keyValue));
textContent.append("[");
- writeIdentifierWithNamespacePrefix(element, textContent,
- keyValue, prefixes);
+ writeIdentifierWithNamespacePrefix(element, textContent, keyValue, prefixes);
textContent.append("='");
textContent.append(predicateValue);
textContent.append("'");
* @param prefixes
* Map of namespaces and prefixes.
*/
- private static void writeIdentifierWithNamespacePrefix(final Element element,
- final StringBuilder textContent, final QName qName, final Map<String, String> prefixes) {
+ private static void writeIdentifierWithNamespacePrefix(final Element element, final StringBuilder textContent,
+ final QName qName, final Map<String, String> prefixes) {
String namespace = qName.getNamespace().toString();
String prefix = prefixes.get(namespace);
if (prefix == null) {
prefix = qName.getPrefix();
- if (prefix == null || prefix.isEmpty()
- || prefixes.containsValue(prefix)) {
+ if (prefix == null || prefix.isEmpty() || prefixes.containsValue(prefix)) {
prefix = generateNewPrefix(prefixes.values());
}
}
* @param registration
* ListenerRegistration<DataChangeListener>
*/
- public void setRegistration(
- final ListenerRegistration<DataChangeListener> registration) {
+ public void setRegistration(final ListenerRegistration<DataChangeListener> registration) {
this.registration = registration;
}
}
/**
- * Removes all subscribers and unregisters event bus change recorder form
- * event bus.
+ * Removes all subscribers and unregisters event bus change recorder form event bus.
*/
public void close() throws Exception {
subscribers = new ConcurrentSet<>();
}
/**
- * Creates event of type {@link EventType#REGISTER}, set {@link Channel}
- * subscriber to the event and post event into event bus.
+ * Creates event of type {@link EventType#REGISTER}, set {@link Channel} subscriber to the event and post event into
+ * event bus.
*
* @param subscriber
* Channel
*/
public void addSubscriber(final Channel subscriber) {
if (!subscriber.isActive()) {
- LOG.debug("Channel is not active between websocket server and subscriber {}"
- + subscriber.remoteAddress());
+ LOG.debug("Channel is not active between websocket server and subscriber {}" + subscriber.remoteAddress());
}
Event event = new Event(EventType.REGISTER);
event.setSubscriber(subscriber);
}
/**
- * Creates event of type {@link EventType#DEREGISTER}, sets {@link Channel}
- * subscriber to the event and posts event into event bus.
+ * Creates event of type {@link EventType#DEREGISTER}, sets {@link Channel} subscriber to the event and posts event
+ * into event bus.
*
* @param subscriber
*/
/**
* Checks if exists at least one {@link Channel} subscriber.
*
- * @return True if exist at least one {@link Channel} subscriber, false
- * otherwise.
+ * @return True if exist at least one {@link Channel} subscriber, false otherwise.
*/
public boolean hasSubscribers() {
return !subscribers.isEmpty();
* Consists of two types {@link Store#CONFIG} and {@link Store#OPERATION}.
*/
private static enum Store {
- CONFIG("config"), OPERATION("operation");
+ CONFIG("config"),
+ OPERATION("operation");
private final String value;
}
/**
- * Consists of three types {@link Operation#CREATED},
- * {@link Operation#UPDATED} and {@link Operation#DELETED}.
+ * Consists of three types {@link Operation#CREATED}, {@link Operation#UPDATED} and {@link Operation#DELETED}.
*/
private static enum Operation {
- CREATED("created"), UPDATED("updated"), DELETED("deleted");
+ CREATED("created"),
+ UPDATED("updated"),
+ DELETED("deleted");
private final String value;
Code Review / controller.git / blobdiff