2 * Copyright (c) 2016 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
8 package org.opendaylight.restconf.restful.services.impl;
12 import javax.ws.rs.core.Response;
13 import javax.ws.rs.core.Response.Status;
14 import javax.ws.rs.core.UriBuilder;
15 import javax.ws.rs.core.UriInfo;
16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
18 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
19 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
20 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
21 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
22 import org.opendaylight.netconf.sal.streams.listeners.Notificator;
23 import org.opendaylight.restconf.handlers.DOMDataBrokerHandler;
24 import org.opendaylight.restconf.restful.services.api.RestconfStreamsSubscriptionService;
25 import org.opendaylight.restconf.restful.utils.RestconfStreamsConstants;
26 import org.opendaylight.restconf.restful.utils.SubscribeToStreamUtil;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
31 * Implementation of {@link RestconfStreamsSubscriptionService}
34 public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSubscriptionService {
36 private static final Logger LOG = LoggerFactory.getLogger(RestconfStreamsSubscriptionServiceImpl.class);
38 private final DOMDataBrokerHandler domDataBrokerHandler;
40 public RestconfStreamsSubscriptionServiceImpl(final DOMDataBrokerHandler domDataBrokerHandler) {
41 this.domDataBrokerHandler = domDataBrokerHandler;
45 public Response subscribeToStream(final String identifier, final UriInfo uriInfo) {
46 final Map<String, String> mapOfValues = SubscribeToStreamUtil.mapValuesFromUri(identifier);
48 final LogicalDatastoreType ds = SubscribeToStreamUtil.parseURIEnum(LogicalDatastoreType.class,
49 mapOfValues.get(RestconfStreamsConstants.DATASTORE_PARAM_NAME));
51 final String msg = "Stream name doesn't contains datastore value (pattern /datastore=)";
53 throw new RestconfDocumentedException(msg, ErrorType.APPLICATION, ErrorTag.MISSING_ATTRIBUTE);
56 final DataChangeScope scope = SubscribeToStreamUtil.parseURIEnum(DataChangeScope.class,
57 mapOfValues.get(RestconfStreamsConstants.SCOPE_PARAM_NAME));
59 final String msg = "Stream name doesn't contains datastore value (pattern /scope=)";
61 throw new RestconfDocumentedException(msg, ErrorType.APPLICATION, ErrorTag.MISSING_ATTRIBUTE);
64 final String streamName = Notificator.createStreamNameFromUri(identifier);
66 final ListenerAdapter listener = Notificator.getListenerFor(streamName);
67 SubscribeToStreamUtil.registration(ds, scope, listener, this.domDataBrokerHandler.get());
69 final int port = SubscribeToStreamUtil.prepareNotificationPort();
71 final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
72 final UriBuilder uriToWebSocketServer = uriBuilder.port(port).scheme(RestconfStreamsConstants.SCHEMA_SUBSCIBRE_URI);
73 final URI uri = uriToWebSocketServer.replacePath(streamName).build();
75 return Response.status(Status.OK).location(uri).build();