2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.controller.md.sal.binding.impl;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.base.Throwables;
13 import com.google.common.util.concurrent.CheckedFuture;
14 import com.google.common.util.concurrent.ListenableFuture;
15 import java.util.concurrent.ExecutionException;
16 import java.util.concurrent.Executor;
17 import java.util.concurrent.TimeUnit;
18 import java.util.concurrent.TimeoutException;
19 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
20 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
21 import org.opendaylight.controller.md.sal.dom.spi.DefaultDOMRpcResult;
22 import org.opendaylight.mdsal.binding.dom.adapter.BindingRpcFutureAware;
23 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
24 import org.opendaylight.yangtools.yang.binding.DataContainer;
25 import org.opendaylight.yangtools.yang.common.RpcResult;
26 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
29 final class LazyDOMRpcResultFuture implements CheckedFuture<DOMRpcResult, DOMRpcException>, BindingRpcFutureAware {
31 private final ListenableFuture<RpcResult<?>> bindingFuture;
32 private final BindingNormalizedNodeSerializer codec;
33 private volatile DOMRpcResult result;
35 private LazyDOMRpcResultFuture(final ListenableFuture<RpcResult<?>> delegate,
36 final BindingNormalizedNodeSerializer codec) {
37 this.bindingFuture = requireNonNull(delegate, "delegate");
38 this.codec = requireNonNull(codec, "codec");
41 static CheckedFuture<DOMRpcResult, DOMRpcException> create(final BindingNormalizedNodeSerializer codec,
42 final ListenableFuture<RpcResult<?>> bindingResult) {
43 return new LazyDOMRpcResultFuture(bindingResult, codec);
47 public ListenableFuture<RpcResult<?>> getBindingFuture() {
52 public boolean cancel(final boolean mayInterruptIfRunning) {
53 return bindingFuture.cancel(mayInterruptIfRunning);
57 public void addListener(final Runnable listener, final Executor executor) {
58 bindingFuture.addListener(listener, executor);
62 public DOMRpcResult get() throws InterruptedException, ExecutionException {
66 return transformIfNecessary(bindingFuture.get());
70 public DOMRpcResult get(final long timeout, final TimeUnit unit) throws InterruptedException, ExecutionException,
75 return transformIfNecessary(bindingFuture.get(timeout, unit));
79 public DOMRpcResult checkedGet() {
82 } catch (InterruptedException | ExecutionException e) {
83 // FIXME: Add exception mapping
84 throw Throwables.propagate(e);
89 public DOMRpcResult checkedGet(final long timeout, final TimeUnit unit) throws TimeoutException {
91 return get(timeout, unit);
92 } catch (InterruptedException | ExecutionException e) {
93 // FIXME: Add exception mapping
94 throw Throwables.propagate(e);
99 public boolean isCancelled() {
100 return bindingFuture.isCancelled();
104 public boolean isDone() {
105 return bindingFuture.isDone();
108 private synchronized DOMRpcResult transformIfNecessary(final RpcResult<?> input) {
109 if (result == null) {
110 result = transform(input);
115 private DOMRpcResult transform(final RpcResult<?> input) {
116 if (input.isSuccessful()) {
117 final Object inputData = input.getResult();
118 if (inputData instanceof DataContainer) {
119 return new DefaultDOMRpcResult(codec.toNormalizedNodeRpcData((DataContainer) inputData));
121 return new DefaultDOMRpcResult((NormalizedNode<?, ?>) null);
124 return new DefaultDOMRpcResult(input.getErrors());