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 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 /**
  38  * Invokes RPC by sending netconf message via listener. Also transforms result from NetconfMessage to CompositeNode.
  39  */
  40 public final class SchemalessNetconfDeviceRpc implements DOMRpcService {
  41
  42     private final RemoteDeviceCommunicator<NetconfMessage> listener;
  43     private final BaseRpcSchemalessTransformer baseRpcTransformer;
  44     private final SchemalessMessageTransformer schemalessTransformer;
  45     private final RemoteDeviceId deviceId;
  46
  47     public SchemalessNetconfDeviceRpc(RemoteDeviceId deviceId, final RemoteDeviceCommunicator<NetconfMessage> listener,
  48                                       final BaseRpcSchemalessTransformer baseRpcTransformer,
  49                                       final SchemalessMessageTransformer messageTransformer) {
  50         this.deviceId = deviceId;
  51         this.listener = listener;
  52         this.baseRpcTransformer = baseRpcTransformer;
  53         this.schemalessTransformer = messageTransformer;
  54     }
  55
  56     @Nonnull
  57     @Override
  58     public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(@Nonnull final SchemaPath type,
  59                                                                   @Nullable final NormalizedNode<?, ?> input) {
  60         final MessageTransformer<NetconfMessage> transformer;
  61         if (input instanceof AnyXmlNode) {
  62             transformer = schemalessTransformer;
  63         } else if (isBaseRpc(type)) {
  64             transformer = baseRpcTransformer;
  65         } else {
  66             return Futures.immediateFailedCheckedFuture(new DOMRpcImplementationNotAvailableException("Unable to invoke rpc %s", type));
  67         }
  68         return handleRpc(type, input, transformer);
  69     }
  70
  71     private CheckedFuture<DOMRpcResult, DOMRpcException> handleRpc(@Nonnull final SchemaPath type,
  72                                                                    @Nullable final NormalizedNode<?, ?> input,
  73                                                                    final MessageTransformer<NetconfMessage> transformer) {
  74         final NetconfMessage netconfMessage = transformer.toRpcRequest(type, input);
  75         final ListenableFuture<RpcResult<NetconfMessage>> rpcResultListenableFuture = listener.sendRequest(netconfMessage, type.getLastComponent());
  76
  77         final ListenableFuture<DOMRpcResult> transformed = Futures.transform(rpcResultListenableFuture, new Function<RpcResult<NetconfMessage>, DOMRpcResult>() {
  78             @Override
  79             public DOMRpcResult apply(final RpcResult<NetconfMessage> input) {
  80                 if (input.isSuccessful()) {
  81                     return transformer.toRpcResult(input.getResult(), type);
  82                 } else {
  83                     return new DefaultDOMRpcResult(input.getErrors());
  84                 }
  85             }
  86         });
  87
  88         return Futures.makeChecked(transformed, new Function<Exception, DOMRpcException>() {
  89             @Nullable
  90             @Override
  91             public DOMRpcException apply(@Nullable final Exception e) {
  92                 return new DOMRpcImplementationNotAvailableException(e, "Unable to invoke rpc %s on device %s", type, deviceId);
  93             }
  94         });
  95     }
  96
  97
  98     private boolean isBaseRpc(final SchemaPath type) {
  99         return NetconfMessageTransformUtil.NETCONF_URI.equals(type.getLastComponent().getNamespace());
 100     }
 101
 102     @Nonnull
 103     @Override
 104     public <T extends DOMRpcAvailabilityListener> ListenerRegistration<T> registerRpcListener(@Nonnull final T listener) {
 105         throw new UnsupportedOperationException("Not available for netconf 1.0");
 106     }
 107
 108 }