2 * Copyright (c) 2014, 2015 Brocade Communications 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.sample.kitchen.impl;
10 import com.google.common.collect.ImmutableList;
11 import com.google.common.collect.ImmutableList.Builder;
12 import com.google.common.util.concurrent.Futures;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import com.google.common.util.concurrent.ListeningExecutorService;
15 import com.google.common.util.concurrent.MoreExecutors;
16 import java.util.List;
17 import java.util.concurrent.ExecutionException;
18 import java.util.concurrent.Executors;
19 import java.util.concurrent.Future;
20 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
21 import org.opendaylight.controller.sample.kitchen.api.EggsType;
22 import org.opendaylight.controller.sample.kitchen.api.KitchenService;
23 import org.opendaylight.controller.sample.kitchen.api.KitchenServiceRuntimeMXBean;
24 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastInput;
25 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastInputBuilder;
26 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastOutput;
27 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastOutputBuilder;
28 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToastType;
29 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterListener;
30 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterOutOfBread;
31 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterRestocked;
32 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterService;
33 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.WheatBread;
34 import org.opendaylight.yangtools.yang.common.RpcError;
35 import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
36 import org.opendaylight.yangtools.yang.common.RpcResult;
37 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
38 import org.slf4j.Logger;
39 import org.slf4j.LoggerFactory;
41 public class KitchenServiceImpl extends AbstractMXBean
42 implements KitchenService, KitchenServiceRuntimeMXBean, ToasterListener {
44 private static final Logger LOG = LoggerFactory.getLogger(KitchenServiceImpl.class);
45 private static final MakeToastOutput EMPTY_MAKE_OUTPUT = new MakeToastOutputBuilder().build();
47 private final ToasterService toaster;
49 private final ListeningExecutorService executor = MoreExecutors.listeningDecorator(Executors.newCachedThreadPool());
51 private volatile boolean toasterOutOfBread;
53 public KitchenServiceImpl(final ToasterService toaster) {
54 super("KitchenService", "toaster-consumer", null);
55 this.toaster = toaster;
59 public Future<RpcResult<Void>> makeBreakfast(final EggsType eggsType, final Class<? extends ToastType> toastType,
60 final int toastDoneness) {
61 // Call makeToast, The OpendaylightToaster impl already returns a ListenableFuture so the conversion is
64 ListenableFuture<RpcResult<MakeToastOutput>> makeToastFuture = makeToast(toastType, toastDoneness);
66 ListenableFuture<RpcResult<Void>> makeEggsFuture = makeEggs(eggsType);
68 // Combine the 2 ListenableFutures into 1 containing a list RpcResults.
70 ListenableFuture<List<RpcResult<? extends Object>>> combinedFutures = Futures
71 .allAsList(ImmutableList.of(makeToastFuture, makeEggsFuture));
73 // Then transform the RpcResults into 1.
75 return Futures.transformAsync(combinedFutures, results -> {
76 boolean atLeastOneSucceeded = false;
77 Builder<RpcError> errorList = ImmutableList.builder();
78 for (RpcResult<? extends Object> result : results) {
79 if (result.isSuccessful()) {
80 atLeastOneSucceeded = true;
83 if (result.getErrors() != null) {
84 errorList.addAll(result.getErrors());
88 return Futures.immediateFuture(RpcResultBuilder.<Void>status(atLeastOneSucceeded)
89 .withRpcErrors(errorList.build()).build());
90 }, MoreExecutors.directExecutor());
93 private ListenableFuture<RpcResult<Void>> makeEggs(final EggsType eggsType) {
94 return executor.submit(() -> RpcResultBuilder.<Void>success().build());
97 private ListenableFuture<RpcResult<MakeToastOutput>> makeToast(final Class<? extends ToastType> toastType,
98 final int toastDoneness) {
100 if (toasterOutOfBread) {
101 LOG.info("We're out of toast but we can make eggs");
102 return Futures.immediateFuture(RpcResultBuilder.success(EMPTY_MAKE_OUTPUT)
103 .withWarning(ErrorType.APPLICATION, "partial-operation",
104 "Toaster is out of bread but we can make you eggs").build());
107 // Access the ToasterService to make the toast.
109 MakeToastInput toastInput = new MakeToastInputBuilder().setToasterDoneness((long) toastDoneness)
110 .setToasterToastType(toastType).build();
112 return toaster.makeToast(toastInput);
116 public Boolean makeScrambledWithWheat() {
118 // This call has to block since we must return a result to the JMX client.
119 RpcResult<Void> result = makeBreakfast(EggsType.SCRAMBLED, WheatBread.class, 2).get();
120 if (result.isSuccessful()) {
121 LOG.info("makeBreakfast succeeded");
123 LOG.warn("makeBreakfast failed: " + result.getErrors());
126 return result.isSuccessful();
128 } catch (InterruptedException | ExecutionException e) {
129 LOG.warn("An error occurred while maing breakfast: " + e);
132 return Boolean.FALSE;
136 * Implemented from the ToasterListener interface.
139 public void onToasterOutOfBread(final ToasterOutOfBread notification) {
140 LOG.info("ToasterOutOfBread notification");
141 toasterOutOfBread = true;
145 * Implemented from the ToasterListener interface.
148 public void onToasterRestocked(final ToasterRestocked notification) {
149 LOG.info("ToasterRestocked notification - amountOfBread: " + notification.getAmountOfBread());
150 toasterOutOfBread = false;