binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/ActionAdapter.java

   1 /*
   2  * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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.mdsal.binding.dom.adapter;
   9
  10 import static java.util.Objects.requireNonNull;
  11 import static org.opendaylight.mdsal.binding.dom.adapter.StaticConfiguration.ENABLE_CODEC_SHORTCUT;
  12 import static org.opendaylight.yangtools.yang.common.YangConstants.operationInputQName;
  13
  14 import com.google.common.util.concurrent.Futures;
  15 import com.google.common.util.concurrent.ListenableFuture;
  16 import com.google.common.util.concurrent.MoreExecutors;
  17 import java.lang.reflect.InvocationHandler;
  18 import java.lang.reflect.Method;
  19 import org.eclipse.jdt.annotation.NonNull;
  20 import org.opendaylight.mdsal.binding.api.ActionSpec;
  21 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  22 import org.opendaylight.mdsal.dom.api.DOMActionResult;
  23 import org.opendaylight.mdsal.dom.api.DOMActionService;
  24 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.opendaylight.yangtools.yang.binding.RpcInput;
  27 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  28 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  29
  30 final class ActionAdapter extends AbstractBindingAdapter<DOMActionService> implements InvocationHandler {
  31     private final @NonNull ActionSpec<?, ?> spec;
  32     private final @NonNull NodeIdentifier inputName;
  33     private final @NonNull Absolute actionPath;
  34
  35     ActionAdapter(final AdapterContext codec, final DOMActionService delegate, final ActionSpec<?, ?> spec) {
  36         super(codec, delegate);
  37         this.spec = requireNonNull(spec);
  38         actionPath = currentSerializer().getActionPath(spec);
  39         inputName = NodeIdentifier.create(operationInputQName(actionPath.lastNodeIdentifier().getModule()));
  40     }
  41
  42     @Override
  43     public Object invoke(final Object proxy, final Method method, final Object [] args) throws NoSuchMethodError {
  44         switch (method.getName()) {
  45             case "equals":
  46                 if (args.length == 1) {
  47                     return proxy == args[0];
  48                 }
  49                 break;
  50             case "hashCode":
  51                 if (args.length == 0) {
  52                     return System.identityHashCode(proxy);
  53                 }
  54                 break;
  55             case "toString":
  56                 if (args.length == 0) {
  57                     return spec.type().getName() + "$Adapter{delegate=" + getDelegate() + "}";
  58                 }
  59                 break;
  60             case "invoke":
  61                 if (args.length == 2) {
  62                     final InstanceIdentifier<?> path = (InstanceIdentifier<?>) requireNonNull(args[0]);
  63                     final RpcInput input = (RpcInput) requireNonNull(args[1]);
  64                     final CurrentAdapterSerializer serializer = currentSerializer();
  65                     final ListenableFuture<? extends DOMActionResult> future = getDelegate().invokeAction(actionPath,
  66                         new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
  67                             serializer.toYangInstanceIdentifier(path)),
  68                         serializer.toLazyNormalizedNodeActionInput(spec.type(), inputName, input));
  69
  70                     // Invocation returned a future we know about -- return that future instead
  71                     if (ENABLE_CODEC_SHORTCUT && future instanceof BindingRpcFutureAware) {
  72                         return ((BindingRpcFutureAware) future).getBindingFuture();
  73                     }
  74
  75                     return Futures.transform(future,
  76                         dom -> RpcResultUtil.rpcResultFromDOM(dom.getErrors(), dom.getOutput()
  77                             .map(output -> serializer.fromNormalizedNodeActionOutput(spec.type(), output))
  78                             .orElse(null)),
  79                         MoreExecutors.directExecutor());
  80                 }
  81                 break;
  82             default:
  83                 break;
  84         }
  85
  86         throw new NoSuchMethodError("Method " + method.toString() + "is unsupported.");
  87     }
  88 }