binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/BindingOperationFluentFuture.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
  12 import com.google.common.util.concurrent.AbstractFuture;
  13 import com.google.common.util.concurrent.Futures;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16 import java.util.concurrent.ExecutionException;
  17 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  18 import org.opendaylight.mdsal.dom.api.DOMActionResult;
  19 import org.opendaylight.mdsal.dom.spi.SimpleDOMActionResult;
  20 import org.opendaylight.yangtools.yang.binding.Action;
  21 import org.opendaylight.yangtools.yang.binding.RpcOutput;
  22 import org.opendaylight.yangtools.yang.common.RpcResult;
  23 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  24
  25 final class BindingOperationFluentFuture<O extends RpcOutput> extends AbstractFuture<DOMActionResult>
  26         implements BindingRpcFutureAware {
  27     private final ListenableFuture<RpcResult<O>> userFuture;
  28     private final Class<? extends Action<?, ?, O>> action;
  29     private final NodeIdentifier identifier;
  30
  31     private BindingNormalizedNodeSerializer codec;
  32
  33     BindingOperationFluentFuture(final ListenableFuture<RpcResult<O>> userFuture,
  34             final Class<? extends Action<?, ?, O>> action, final NodeIdentifier identifier,
  35             final BindingNormalizedNodeSerializer codec) {
  36         this.userFuture = requireNonNull(userFuture);
  37         this.action = requireNonNull(action);
  38         this.identifier = requireNonNull(identifier);
  39         this.codec = requireNonNull(codec);
  40         userFuture.addListener(this::userFutureCompleted, MoreExecutors.directExecutor());
  41     }
  42
  43     @SuppressWarnings({ "rawtypes", "unchecked" })
  44     @Override
  45     public ListenableFuture<RpcResult<?>> getBindingFuture() {
  46         return (ListenableFuture) userFuture;
  47     }
  48
  49     @SuppressWarnings("checkstyle:illegalCatch")
  50     private void userFutureCompleted() {
  51         final DOMActionResult domResult;
  52
  53         try {
  54             final RpcResult<O> bindingResult = Futures.getDone(userFuture);
  55             if (bindingResult.getResult() != null) {
  56                 domResult = new SimpleDOMActionResult(
  57                         codec.toLazyNormalizedNodeActionOutput(action, identifier, bindingResult.getResult()),
  58                         bindingResult.getErrors());
  59             } else {
  60                 domResult = new SimpleDOMActionResult(bindingResult.getErrors());
  61             }
  62         } catch (ExecutionException e) {
  63             codec = null;
  64             setException(e.getCause());
  65             return;
  66         } catch (RuntimeException | Error e) {
  67             codec = null;
  68             setException(e);
  69             return;
  70         }
  71
  72         codec = null;
  73         set(domResult);
  74     }
  75 }