InstanceIdentifierContext does not take generics
[netconf.git] / restconf / restconf-nb-rfc8040 / src / main / java / org / opendaylight / restconf / nb / rfc8040 / rests / services / impl / RestconfStreamsSubscriptionServiceImpl.java
index 2afc1b91763f969d47f2ae24c824a2cc6b67e2a7..0645e82794c1d4bc0a5c05587630a233e0af0929 100644 (file)
@@ -7,46 +7,30 @@
  */
 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;
 
@@ -56,6 +40,12 @@ 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;
@@ -67,31 +57,26 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
      * @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);
@@ -99,16 +84,8 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
         }
 
         // 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);
     }
 
     /**
@@ -117,22 +94,15 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
      * @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());
     }
 
     /**
@@ -142,14 +112,12 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
     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;
         }
 
@@ -159,7 +127,7 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
          * @return the dataBroker
          */
         public DOMDataBroker getDataBroker() {
-            return this.dataBroker;
+            return dataBroker;
         }
 
         /**
@@ -168,16 +136,7 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
          * @return the notificationService
          */
         public DOMNotificationService getNotificationServiceHandler() {
-            return this.notificationService;
-        }
-
-        /**
-         * Get {@link TransactionChainHandler}.
-         *
-         * @return the transactionChainHandler
-         */
-        public TransactionChainHandler getTransactionChainHandler() {
-            return this.transactionChainHandler;
+            return notificationService;
         }
 
         /**
@@ -186,146 +145,7 @@ public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSu
          * @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;
         }
     }
 }