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.yangtools.yang.common.YangConstants.operationInputQName;
  12
  13 import com.google.common.util.concurrent.FluentFuture;
  14 import com.google.common.util.concurrent.Futures;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16 import java.lang.reflect.InvocationHandler;
  17 import java.lang.reflect.Method;
  18 import org.eclipse.jdt.annotation.NonNullByDefault;
  19 import org.eclipse.jdt.annotation.Nullable;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.mdsal.dom.api.DOMActionResult;
  22 import org.opendaylight.mdsal.dom.api.DOMActionService;
  23 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  24 import org.opendaylight.yangtools.yang.binding.Action;
  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.SchemaPath;
  29
  30 @NonNullByDefault
  31 final class ActionAdapter extends AbstractBindingAdapter<DOMActionService> implements InvocationHandler {
  32     private final Class<? extends Action<?, ?, ?>> type;
  33     private final NodeIdentifier inputName;
  34     private final SchemaPath schemaPath;
  35
  36     ActionAdapter(final BindingToNormalizedNodeCodec codec, final DOMActionService delegate,
  37             final Class<? extends Action<?, ?, ?>> type) {
  38         super(codec, delegate);
  39         this.type = requireNonNull(type);
  40         this.schemaPath = getCodec().getActionPath(type);
  41         this.inputName = NodeIdentifier.create(operationInputQName(schemaPath.getLastComponent().getModule()));
  42     }
  43
  44     @Override public @Nullable Object invoke(final @Nullable Object proxy, final @Nullable Method method,
  45             final Object @Nullable [] args) throws Throwable {
  46         switch (method.getName()) {
  47             case "equals":
  48                 if (args.length == 1) {
  49                     return proxy == args[0];
  50                 }
  51                 break;
  52             case "hashCode":
  53                 if (args.length == 0) {
  54                     return System.identityHashCode(proxy);
  55                 }
  56                 break;
  57             case "toString":
  58                 if (args.length == 0) {
  59                     return type.getName() + "$Adapter{delegate=" + getDelegate() + "}";
  60                 }
  61                 break;
  62             case "invoke":
  63                 if (args.length == 2) {
  64                     final InstanceIdentifier<?> path = (InstanceIdentifier<?>) requireNonNull(args[0]);
  65                     final RpcInput input = (RpcInput) requireNonNull(args[1]);
  66                     final FluentFuture<? extends DOMActionResult> future = getDelegate().invokeAction(schemaPath,
  67                         new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, getCodec().toNormalized(path)),
  68                         getCodec().toLazyNormalizedNodeActionInput(type, inputName, input));
  69
  70                     // Invocation returned a future we know about -- return that future instead
  71                     if (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 -> getCodec().fromNormalizedNodeActionOutput(type, output))
  78                             .orElse(null)), MoreExecutors.directExecutor());
  79                 }
  80                 break;
  81             default:
  82                 break;
  83         }
  84
  85         throw new NoSuchMethodError("Method " + method.toString() + "is unsupported.");
  86     }
  87 }