restconf/restconf-nb-rfc8040/src/main/java/org/opendaylight/restconf/nb/rfc8040/rests/services/impl/RestconfImpl.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.restconf.nb.rfc8040.rests.services.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import javax.ws.rs.Path;
  13 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
  14 import org.opendaylight.restconf.nb.rfc8040.Rfc8040.IetfYangLibrary;
  15 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
  16 import org.opendaylight.restconf.nb.rfc8040.legacy.NormalizedNodePayload;
  17 import org.opendaylight.restconf.nb.rfc8040.rests.services.api.RestconfService;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.restconf.rev170126.Restconf;
  19 import org.opendaylight.yangtools.yang.common.QName;
  20 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  21 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  22 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
  23
  24 @Path("/")
  25 public class RestconfImpl implements RestconfService {
  26     private static final QName YANG_LIBRARY_VERSION = QName.create(Restconf.QNAME, "yang-library-version").intern();
  27
  28     private final SchemaContextHandler schemaContextHandler;
  29
  30     public RestconfImpl(final SchemaContextHandler schemaContextHandler) {
  31         this.schemaContextHandler = requireNonNull(schemaContextHandler);
  32     }
  33
  34     @Override
  35     public NormalizedNodePayload getLibraryVersion() {
  36         final EffectiveModelContext context = schemaContextHandler.get();
  37
  38         final SchemaInferenceStack stack = SchemaInferenceStack.of(context);
  39         // FIXME: use rc:data instantiation once the stack supports it
  40         stack.enterGrouping(Restconf.QNAME);
  41         stack.enterDataTree(Restconf.QNAME);
  42         stack.enterDataTree(YANG_LIBRARY_VERSION);
  43
  44         return NormalizedNodePayload.of(InstanceIdentifierContext.ofStack(stack),
  45             ImmutableNodes.leafNode(YANG_LIBRARY_VERSION, IetfYangLibrary.REVISION.toString()));
  46     }
  47 }