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.mdsal.binding.dom.adapter;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.util.concurrent.AbstractFuture;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import java.util.concurrent.ExecutionException;
15 import java.util.concurrent.Executor;
16 import java.util.concurrent.TimeUnit;
17 import java.util.concurrent.TimeoutException;
18 import org.eclipse.jdt.annotation.NonNull;
19 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
20 import org.opendaylight.mdsal.dom.api.DOMRpcException;
21 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
22 import org.opendaylight.mdsal.dom.api.DefaultDOMRpcException;
23 import org.opendaylight.mdsal.dom.spi.DefaultDOMRpcResult;
24 import org.opendaylight.yangtools.util.concurrent.ExceptionMapper;
25 import org.opendaylight.yangtools.yang.binding.DataContainer;
26 import org.opendaylight.yangtools.yang.common.RpcResult;
27 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
29 final class LazyDOMRpcResultFuture extends AbstractFuture<DOMRpcResult> implements BindingRpcFutureAware {
30 private static final ExceptionMapper<DOMRpcException> DOM_RPC_EX_MAPPER = new ExceptionMapper<>("rpc",
31 DOMRpcException.class) {
33 protected DOMRpcException newWithCause(final String message, final Throwable cause) {
34 return cause instanceof DOMRpcException ? (DOMRpcException)cause
35 : new DefaultDOMRpcException("RPC failed", cause);
39 private final ListenableFuture<RpcResult<?>> bindingFuture;
40 private final BindingNormalizedNodeSerializer codec;
41 private volatile DOMRpcResult result;
43 private LazyDOMRpcResultFuture(final ListenableFuture<RpcResult<?>> delegate,
44 final BindingNormalizedNodeSerializer codec) {
45 this.bindingFuture = requireNonNull(delegate, "delegate");
46 this.codec = requireNonNull(codec, "codec");
49 static @NonNull LazyDOMRpcResultFuture create(final BindingNormalizedNodeSerializer codec,
50 final ListenableFuture<RpcResult<?>> bindingResult) {
51 return new LazyDOMRpcResultFuture(bindingResult, codec);
55 public ListenableFuture<RpcResult<?>> getBindingFuture() {
60 public boolean cancel(final boolean mayInterruptIfRunning) {
61 return bindingFuture.cancel(mayInterruptIfRunning);
65 public void addListener(final Runnable listener, final Executor executor) {
66 bindingFuture.addListener(listener, executor);
70 public DOMRpcResult get() throws InterruptedException, ExecutionException {
76 return transformIfNecessary(bindingFuture.get());
77 } catch (ExecutionException e) {
78 throw new ExecutionException(e.getMessage(), DOM_RPC_EX_MAPPER.apply(e));
83 public DOMRpcResult get(final long timeout, final TimeUnit unit) throws InterruptedException, ExecutionException,
90 return transformIfNecessary(bindingFuture.get(timeout, unit));
91 } catch (ExecutionException e) {
92 throw new ExecutionException(e.getMessage(), DOM_RPC_EX_MAPPER.apply(e));
97 public boolean isCancelled() {
98 return bindingFuture.isCancelled();
102 public boolean isDone() {
103 return bindingFuture.isDone();
106 private synchronized DOMRpcResult transformIfNecessary(final RpcResult<?> input) {
107 if (result == null) {
108 result = transform(input);
113 private DOMRpcResult transform(final RpcResult<?> input) {
114 if (input.isSuccessful()) {
115 final Object inputData = input.getResult();
116 if (inputData instanceof DataContainer) {
117 return new DefaultDOMRpcResult(codec.toNormalizedNodeRpcData((DataContainer) inputData));
120 return new DefaultDOMRpcResult((ContainerNode) null);
122 return new DefaultDOMRpcResult(input.getErrors());