*/
package org.opendaylight.restconf.nb.rfc8040.rests.services.impl;
-import com.google.common.base.Preconditions;
+import static com.google.common.base.Preconditions.checkState;
+
import java.net.URI;
-import java.time.Instant;
-import java.time.format.DateTimeFormatter;
-import java.time.format.DateTimeFormatterBuilder;
-import java.time.format.DateTimeParseException;
-import java.time.temporal.ChronoField;
-import java.time.temporal.TemporalAccessor;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
import java.util.Optional;
import javax.ws.rs.Path;
import javax.ws.rs.core.UriInfo;
-import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.mdsal.dom.api.DOMDataBroker;
import org.opendaylight.mdsal.dom.api.DOMNotificationService;
-import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
-import org.opendaylight.restconf.common.context.NormalizedNodeContext;
import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
+import org.opendaylight.restconf.nb.rfc8040.NotificationQueryParams;
+import org.opendaylight.restconf.nb.rfc8040.databind.jaxrs.QueryParams;
import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
-import org.opendaylight.restconf.nb.rfc8040.handlers.TransactionChainHandler;
+import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
import org.opendaylight.restconf.nb.rfc8040.rests.services.api.RestconfStreamsSubscriptionService;
import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants;
import org.opendaylight.restconf.nb.rfc8040.streams.Configuration;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DateAndTime;
+import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
-import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.Module;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Path("/")
public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSubscriptionService {
private static final Logger LOG = LoggerFactory.getLogger(RestconfStreamsSubscriptionServiceImpl.class);
+ private static final QName LOCATION_QNAME =
+ QName.create("subscribe:to:notification", "2016-10-28", "location").intern();
+ private static final NodeIdentifier LOCATION_NODEID = NodeIdentifier.create(LOCATION_QNAME);
+ private static final QName NOTIFI_QNAME = QName.create(LOCATION_QNAME, "notifi").intern();
+ private static final YangInstanceIdentifier LOCATION_PATH =
+ YangInstanceIdentifier.create(NodeIdentifier.create(NOTIFI_QNAME), LOCATION_NODEID);
private final SubscribeToStreamUtil streamUtils;
private final HandlersHolder handlersHolder;
* @param notificationService {@link DOMNotificationService}
* @param schemaHandler
* handler of {@link SchemaContext}
- * @param transactionChainHandler
- * handler of {@link DOMTransactionChain}
* @param configuration
* configuration for restconf {@link Configuration}}
*/
public RestconfStreamsSubscriptionServiceImpl(final DOMDataBroker dataBroker,
final DOMNotificationService notificationService, final SchemaContextHandler schemaHandler,
- final TransactionChainHandler transactionChainHandler, final Configuration configuration) {
- this.handlersHolder = new HandlersHolder(dataBroker, notificationService,
- transactionChainHandler, schemaHandler);
+ final Configuration configuration) {
+ handlersHolder = new HandlersHolder(dataBroker, notificationService, schemaHandler);
streamUtils = configuration.isUseSSE() ? SubscribeToStreamUtil.serverSentEvents()
: SubscribeToStreamUtil.webSockets();
}
@Override
- public NormalizedNodeContext subscribeToStream(final String identifier, final UriInfo uriInfo) {
- final NotificationQueryParams notificationQueryParams = NotificationQueryParams.fromUriInfo(uriInfo);
+ public NormalizedNodePayload subscribeToStream(final String identifier, final UriInfo uriInfo) {
+ final NotificationQueryParams params = QueryParams.newNotificationQueryParams(uriInfo);
final URI response;
if (identifier.contains(RestconfStreamsConstants.DATA_SUBSCRIPTION)) {
- response = streamUtils.subscribeToDataStream(identifier, uriInfo, notificationQueryParams,
- this.handlersHolder);
+ response = streamUtils.subscribeToDataStream(identifier, uriInfo, params, handlersHolder);
} else if (identifier.contains(RestconfStreamsConstants.NOTIFICATION_STREAM)) {
- response = streamUtils.subscribeToYangStream(identifier, uriInfo, notificationQueryParams,
- this.handlersHolder);
+ response = streamUtils.subscribeToYangStream(identifier, uriInfo, params, handlersHolder);
} else {
final String msg = "Bad type of notification of sal-remote";
LOG.warn(msg);
}
// prepare node with value of location
- final InstanceIdentifierContext<?> iid = prepareIIDSubsStreamOutput(this.handlersHolder.getSchemaHandler());
- final NormalizedNodeBuilder<NodeIdentifier, Object, LeafNode<Object>> builder =
- ImmutableLeafNodeBuilder.create().withValue(response.toString());
- builder.withNodeIdentifier(NodeIdentifier.create(RestconfStreamsConstants.LOCATION_QNAME));
-
- // prepare new header with location
- final Map<String, Object> headers = new HashMap<>();
- headers.put("Location", response);
-
- return new NormalizedNodeContext(iid, builder.build(), headers);
+ return NormalizedNodePayload.ofLocation(prepareIIDSubsStreamOutput(handlersHolder.getSchemaHandler()),
+ LOCATION_NODEID, response);
}
/**
* @param schemaHandler Schema context handler.
* @return InstanceIdentifier of Location leaf.
*/
- private static InstanceIdentifierContext<?> prepareIIDSubsStreamOutput(final SchemaContextHandler schemaHandler) {
- final Optional<Module> module = schemaHandler.get()
- .findModule(RestconfStreamsConstants.NOTIFI_QNAME.getModule());
- Preconditions.checkState(module.isPresent());
- final Optional<DataSchemaNode> notify = module.get()
- .findDataChildByName(RestconfStreamsConstants.NOTIFI_QNAME);
- Preconditions.checkState(notify.isPresent());
- final Optional<DataSchemaNode> location = ((ContainerSchemaNode) notify.get())
- .findDataChildByName(RestconfStreamsConstants.LOCATION_QNAME);
- Preconditions.checkState(location.isPresent());
-
- final List<PathArgument> path = new ArrayList<>();
- path.add(NodeIdentifier.create(RestconfStreamsConstants.NOTIFI_QNAME));
- path.add(NodeIdentifier.create(RestconfStreamsConstants.LOCATION_QNAME));
- return new InstanceIdentifierContext<SchemaNode>(YangInstanceIdentifier.create(path), location.get(),
- null, schemaHandler.get());
+ private static InstanceIdentifierContext prepareIIDSubsStreamOutput(final SchemaContextHandler schemaHandler) {
+ final Optional<Module> module = schemaHandler.get().findModule(NOTIFI_QNAME.getModule());
+ checkState(module.isPresent());
+ final DataSchemaNode notify = module.get().dataChildByName(NOTIFI_QNAME);
+ checkState(notify instanceof ContainerSchemaNode, "Unexpected non-container %s", notify);
+ final DataSchemaNode location = ((ContainerSchemaNode) notify).dataChildByName(LOCATION_QNAME);
+ checkState(location != null, "Missing location");
+
+ return new InstanceIdentifierContext(LOCATION_PATH, location, null, schemaHandler.get());
}
/**
public static final class HandlersHolder {
private final DOMDataBroker dataBroker;
private final DOMNotificationService notificationService;
- private final TransactionChainHandler transactionChainHandler;
private final SchemaContextHandler schemaHandler;
private HandlersHolder(final DOMDataBroker dataBroker, final DOMNotificationService notificationService,
- final TransactionChainHandler transactionChainHandler, final SchemaContextHandler schemaHandler) {
+ final SchemaContextHandler schemaHandler) {
this.dataBroker = dataBroker;
this.notificationService = notificationService;
- this.transactionChainHandler = transactionChainHandler;
this.schemaHandler = schemaHandler;
}
* @return the dataBroker
*/
public DOMDataBroker getDataBroker() {
- return this.dataBroker;
+ return dataBroker;
}
/**
* @return the notificationService
*/
public DOMNotificationService getNotificationServiceHandler() {
- return this.notificationService;
- }
-
- /**
- * Get {@link TransactionChainHandler}.
- *
- * @return the transactionChainHandler
- */
- public TransactionChainHandler getTransactionChainHandler() {
- return this.transactionChainHandler;
+ return notificationService;
}
/**
* @return the schemaHandler
*/
public SchemaContextHandler getSchemaHandler() {
- return this.schemaHandler;
- }
- }
-
- /**
- * Parser and holder of query paramteres from uriInfo for notifications.
- */
- public static final class NotificationQueryParams {
- private static final DateTimeFormatter FORMATTER = new DateTimeFormatterBuilder()
- .appendValue(ChronoField.YEAR, 4).appendLiteral('-')
- .appendValue(ChronoField.MONTH_OF_YEAR, 2).appendLiteral('-')
- .appendValue(ChronoField.DAY_OF_MONTH, 2).appendLiteral('T')
- .appendValue(ChronoField.HOUR_OF_DAY, 2).appendLiteral(':')
- .appendValue(ChronoField.MINUTE_OF_HOUR, 2).appendLiteral(':')
- .appendValue(ChronoField.SECOND_OF_MINUTE, 2)
- .appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true)
- .appendOffset("+HH:MM", "Z").toFormatter();
-
- private final Instant start;
- private final Instant stop;
- private final String filter;
- private final boolean skipNotificationData;
-
- private NotificationQueryParams(final Instant start, final Instant stop, final String filter,
- final boolean skipNotificationData) {
- this.start = start == null ? Instant.now() : start;
- this.stop = stop;
- this.filter = filter;
- this.skipNotificationData = skipNotificationData;
- }
-
- static NotificationQueryParams fromUriInfo(final UriInfo uriInfo) {
- Instant start = null;
- boolean startTimeUsed = false;
- Instant stop = null;
- boolean stopTimeUsed = false;
- String filter = null;
- boolean filterUsed = false;
- boolean skipNotificationDataUsed = false;
- boolean skipNotificationData = false;
-
- for (final Entry<String, List<String>> entry : uriInfo.getQueryParameters().entrySet()) {
- switch (entry.getKey()) {
- case "start-time":
- if (!startTimeUsed) {
- startTimeUsed = true;
- start = parseDateFromQueryParam(entry);
- } else {
- throw new RestconfDocumentedException("Start-time parameter can be used only once.");
- }
- break;
- case "stop-time":
- if (!stopTimeUsed) {
- stopTimeUsed = true;
- stop = parseDateFromQueryParam(entry);
- } else {
- throw new RestconfDocumentedException("Stop-time parameter can be used only once.");
- }
- break;
- case "filter":
- if (!filterUsed) {
- filterUsed = true;
- filter = entry.getValue().iterator().next();
- }
- break;
- case "odl-skip-notification-data":
- if (!skipNotificationDataUsed) {
- skipNotificationDataUsed = true;
- skipNotificationData = Boolean.parseBoolean(entry.getValue().iterator().next());
- } else {
- throw new RestconfDocumentedException(
- "Odl-skip-notification-data parameter can be used only once.");
- }
- break;
- default:
- throw new RestconfDocumentedException(
- "Bad parameter used with notifications: " + entry.getKey());
- }
- }
- if (!startTimeUsed && stopTimeUsed) {
- throw new RestconfDocumentedException("Stop-time parameter has to be used with start-time parameter.");
- }
-
- return new NotificationQueryParams(start, stop, filter, skipNotificationData);
- }
-
-
- /**
- * Parse input of query parameters - start-time or stop-time - from {@link DateAndTime} format
- * to {@link Instant} format.
- *
- * @param entry Start-time or stop-time as string in {@link DateAndTime} format.
- * @return Parsed {@link Instant} by entry.
- */
- private static Instant parseDateFromQueryParam(final Entry<String, List<String>> entry) {
- final DateAndTime event = new DateAndTime(entry.getValue().iterator().next());
- final String value = event.getValue();
- final TemporalAccessor accessor;
- try {
- accessor = FORMATTER.parse(value);
- } catch (final DateTimeParseException e) {
- throw new RestconfDocumentedException("Cannot parse of value in date: " + value, e);
- }
- return Instant.from(accessor);
- }
-
- /**
- * Get start-time query parameter.
- *
- * @return start-time
- */
- public @NonNull Instant getStart() {
- return start;
- }
-
- /**
- * Get stop-time query parameter.
- *
- * @return stop-time
- */
- public Optional<Instant> getStop() {
- return Optional.ofNullable(stop);
- }
-
- /**
- * Get filter query parameter.
- *
- * @return filter
- */
- public Optional<String> getFilter() {
- return Optional.ofNullable(filter);
- }
-
- /**
- * Check whether this query should notify changes without data.
- *
- * @return true if this query should notify about changes with data
- */
- public boolean isSkipNotificationData() {
- return skipNotificationData;
+ return schemaHandler;
}
}
}