netconf/sal-netconf-connector/src/main/java/org/opendaylight/netconf/sal/connect/netconf/sal/SchemalessNetconfDeviceRpc.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.sal;
   9
  10 import com.google.common.base.Function;
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import javax.annotation.Nonnull;
  15 import javax.annotation.Nullable;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMRpcAvailabilityListener;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementationNotAvailableException;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  21 import org.opendaylight.controller.md.sal.dom.spi.DefaultDOMRpcResult;
  22 import org.opendaylight.netconf.api.NetconfMessage;
  23 import org.opendaylight.netconf.sal.connect.api.MessageTransformer;
  24 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceCommunicator;
  25 import org.opendaylight.netconf.sal.connect.netconf.schema.mapping.BaseRpcSchemalessTransformer;
  26 import org.opendaylight.netconf.sal.connect.netconf.schema.mapping.SchemalessMessageTransformer;
  27 import org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil;
  28 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  29 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  30 import org.opendaylight.yangtools.yang.common.RpcResult;
  31 import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  33 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  34
  35 /**
  36  * Invokes RPC by sending netconf message via listener. Also transforms result from NetconfMessage to CompositeNode.
  37  */
  38 public final class SchemalessNetconfDeviceRpc implements DOMRpcService {
  39
  40     private final RemoteDeviceCommunicator<NetconfMessage> listener;
  41     private final BaseRpcSchemalessTransformer baseRpcTransformer;
  42     private final SchemalessMessageTransformer schemalessTransformer;
  43     private final RemoteDeviceId deviceId;
  44
  45     public SchemalessNetconfDeviceRpc(final RemoteDeviceId deviceId,
  46                                       final RemoteDeviceCommunicator<NetconfMessage> listener,
  47                                       final BaseRpcSchemalessTransformer baseRpcTransformer,
  48                                       final SchemalessMessageTransformer messageTransformer) {
  49         this.deviceId = deviceId;
  50         this.listener = listener;
  51         this.baseRpcTransformer = baseRpcTransformer;
  52         this.schemalessTransformer = messageTransformer;
  53     }
  54
  55     @Nonnull
  56     @Override
  57     public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(@Nonnull final SchemaPath type,
  58                                                                   @Nullable final NormalizedNode<?, ?> input) {
  59         final MessageTransformer<NetconfMessage> transformer;
  60         if (input instanceof AnyXmlNode) {
  61             transformer = schemalessTransformer;
  62         } else if (isBaseRpc(type)) {
  63             transformer = baseRpcTransformer;
  64         } else {
  65             return Futures.immediateFailedCheckedFuture(
  66                     new DOMRpcImplementationNotAvailableException("Unable to invoke rpc %s", type));
  67         }
  68         return handleRpc(type, input, transformer);
  69     }
  70
  71     private CheckedFuture<DOMRpcResult, DOMRpcException> handleRpc(
  72             @Nonnull final SchemaPath type, @Nullable final NormalizedNode<?, ?> input,
  73             final MessageTransformer<NetconfMessage> transformer) {
  74         final NetconfMessage netconfMessage = transformer.toRpcRequest(type, input);
  75         final ListenableFuture<RpcResult<NetconfMessage>> rpcResultListenableFuture =
  76                 listener.sendRequest(netconfMessage, type.getLastComponent());
  77
  78         final ListenableFuture<DOMRpcResult> transformed =
  79             Futures.transform(rpcResultListenableFuture, (Function<RpcResult<NetconfMessage>, DOMRpcResult>) input1 -> {
  80                 if (input1.isSuccessful()) {
  81                     return transformer.toRpcResult(input1.getResult(), type);
  82                 } else {
  83                     return new DefaultDOMRpcResult(input1.getErrors());
  84                 }
  85             });
  86
  87         return Futures.makeChecked(transformed,
  88             e -> new DOMRpcImplementationNotAvailableException(e,
  89                 "Unable to invoke rpc %s on device %s", type, deviceId));
  90     }
  91
  92     private static boolean isBaseRpc(final SchemaPath type) {
  93         return NetconfMessageTransformUtil.NETCONF_URI.equals(type.getLastComponent().getNamespace());
  94     }
  95
  96     @Nonnull
  97     @Override
  98     public <T extends DOMRpcAvailabilityListener> ListenerRegistration<T> registerRpcListener(
  99             @Nonnull final T listener) {
 100         throw new UnsupportedOperationException("Not available for netconf 1.0");
 101     }
 102
 103 }