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.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  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.Action;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.opendaylight.yangtools.yang.binding.RpcInput;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  29 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  30
  31 @NonNullByDefault
  32 final class ActionAdapter extends AbstractBindingAdapter<DOMActionService> implements InvocationHandler {
  33     private final Class<? extends Action<?, ?, ?>> type;
  34     private final NodeIdentifier inputName;
  35     private final Absolute actionPath;
  36
  37     ActionAdapter(final AdapterContext codec, final DOMActionService delegate,
  38             final Class<? extends Action<?, ?, ?>> type) {
  39         super(codec, delegate);
  40         this.type = requireNonNull(type);
  41         this.actionPath = currentSerializer().getActionPath(type);
  42         this.inputName = NodeIdentifier.create(operationInputQName(actionPath.lastNodeIdentifier().getModule()));
  43     }
  44
  45     @Override
  46     public @Nullable Object invoke(final @Nullable Object proxy, final @Nullable Method method,
  47             final Object @Nullable [] args) throws Throwable {
  48         switch (method.getName()) {
  49             case "equals":
  50                 if (args.length == 1) {
  51                     return proxy == args[0];
  52                 }
  53                 break;
  54             case "hashCode":
  55                 if (args.length == 0) {
  56                     return System.identityHashCode(proxy);
  57                 }
  58                 break;
  59             case "toString":
  60                 if (args.length == 0) {
  61                     return type.getName() + "$Adapter{delegate=" + getDelegate() + "}";
  62                 }
  63                 break;
  64             case "invoke":
  65                 if (args.length == 2) {
  66                     final InstanceIdentifier<?> path = (InstanceIdentifier<?>) requireNonNull(args[0]);
  67                     final RpcInput input = (RpcInput) requireNonNull(args[1]);
  68                     final CurrentAdapterSerializer serializer = currentSerializer();
  69                     final ListenableFuture<? extends DOMActionResult> future = getDelegate().invokeAction(actionPath,
  70                         new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
  71                             serializer.toYangInstanceIdentifier(path)),
  72                         serializer.toLazyNormalizedNodeActionInput(type, inputName, input));
  73
  74                     // Invocation returned a future we know about -- return that future instead
  75                     if (ENABLE_CODEC_SHORTCUT && future instanceof BindingRpcFutureAware) {
  76                         return ((BindingRpcFutureAware) future).getBindingFuture();
  77                     }
  78
  79                     return Futures.transform(future,
  80                         dom -> RpcResultUtil.rpcResultFromDOM(dom.getErrors(), dom.getOutput()
  81                             .map(output -> serializer.fromNormalizedNodeActionOutput(type, output))
  82                             .orElse(null)),
  83                         MoreExecutors.directExecutor());
  84                 }
  85                 break;
  86             default:
  87                 break;
  88         }
  89
  90         throw new NoSuchMethodError("Method " + method.toString() + "is unsupported.");
  91     }
  92 }