netconf/sal-netconf-connector/src/main/java/org/opendaylight/netconf/sal/connect/netconf/NetconfStateSchemasResolverImpl.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.netconf.sal.connect.netconf;
   9
  10 import org.opendaylight.netconf.sal.connect.api.NetconfDeviceSchemas;
  11 import org.opendaylight.netconf.sal.connect.api.NetconfDeviceSchemasResolver;
  12 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  13 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceRpc;
  14 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.library.rev160621.ModulesState;
  16 import org.opendaylight.yangtools.yang.common.QName;
  17
  18 /**
  19  * Default implementation resolving schemas QNames from netconf-state or from modules-state.
  20  */
  21 public final class NetconfStateSchemasResolverImpl implements NetconfDeviceSchemasResolver {
  22     private static final QName YANG_LIBRARY_CAPABILITY = QName.create(ModulesState.QNAME, "ietf-yang-library").intern();
  23
  24     @Override
  25     public NetconfDeviceSchemas resolve(final NetconfDeviceRpc deviceRpc,
  26                                         final NetconfSessionPreferences remoteSessionCapabilities,
  27                                         final RemoteDeviceId id) {
  28         if (remoteSessionCapabilities.isMonitoringSupported()) {
  29             return NetconfStateSchemas.create(deviceRpc, remoteSessionCapabilities, id);
  30         }
  31
  32         // FIXME: I think we should prefer YANG library here
  33         return remoteSessionCapabilities.containsModuleCapability(YANG_LIBRARY_CAPABILITY)
  34             ? LibraryModulesSchemas.create(deviceRpc, id) : NetconfStateSchemas.EMPTY;
  35     }
  36 }