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 org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
20 import org.opendaylight.controller.sample.kitchen.api.EggsType;
21 import org.opendaylight.controller.sample.kitchen.api.KitchenService;
22 import org.opendaylight.controller.sample.kitchen.api.KitchenServiceRuntimeMXBean;
23 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastInput;
24 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastInputBuilder;
25 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastOutput;
26 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.MakeToastOutputBuilder;
27 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToastType;
28 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterListener;
29 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterOutOfBread;
30 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterRestocked;
31 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.ToasterService;
32 import org.opendaylight.yang.gen.v1.http.netconfcentral.org.ns.toaster.rev091120.WheatBread;
33 import org.opendaylight.yangtools.yang.common.ErrorTag;
34 import org.opendaylight.yangtools.yang.common.ErrorType;
35 import org.opendaylight.yangtools.yang.common.RpcError;
36 import org.opendaylight.yangtools.yang.common.RpcResult;
37 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
38 import org.opendaylight.yangtools.yang.common.Uint32;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
42 public class KitchenServiceImpl extends AbstractMXBean
43 implements KitchenService, KitchenServiceRuntimeMXBean, ToasterListener {
45 private static final Logger LOG = LoggerFactory.getLogger(KitchenServiceImpl.class);
46 private static final MakeToastOutput EMPTY_MAKE_OUTPUT = new MakeToastOutputBuilder().build();
48 private final ToasterService toaster;
50 private final ListeningExecutorService executor = MoreExecutors.listeningDecorator(Executors.newCachedThreadPool());
52 private volatile boolean toasterOutOfBread;
54 public KitchenServiceImpl(final ToasterService toaster) {
55 super("KitchenService", "toaster-consumer", null);
56 this.toaster = toaster;
60 public ListenableFuture<RpcResult<Void>> makeBreakfast(final EggsType eggsType, final ToastType toastType,
61 final int toastDoneness) {
62 // Call makeToast, The OpendaylightToaster impl already returns a ListenableFuture so the conversion is
65 ListenableFuture<RpcResult<MakeToastOutput>> makeToastFuture = makeToast(toastType, toastDoneness);
67 ListenableFuture<RpcResult<Void>> makeEggsFuture = makeEggs(eggsType);
69 // Combine the 2 ListenableFutures into 1 containing a list RpcResults.
71 ListenableFuture<List<RpcResult<? extends Object>>> combinedFutures = Futures
72 .allAsList(ImmutableList.of(makeToastFuture, makeEggsFuture));
74 // Then transform the RpcResults into 1.
76 return Futures.transformAsync(combinedFutures, results -> {
77 boolean atLeastOneSucceeded = false;
78 Builder<RpcError> errorList = ImmutableList.builder();
79 for (RpcResult<? extends Object> result : results) {
80 if (result.isSuccessful()) {
81 atLeastOneSucceeded = true;
84 if (result.getErrors() != null) {
85 errorList.addAll(result.getErrors());
89 return RpcResultBuilder.<Void>status(atLeastOneSucceeded).withRpcErrors(errorList.build()).buildFuture();
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 ToastType toastType, final int toastDoneness) {
98 if (toasterOutOfBread) {
99 LOG.info("We're out of toast but we can make eggs");
100 return RpcResultBuilder.success(EMPTY_MAKE_OUTPUT)
101 .withWarning(ErrorType.APPLICATION, ErrorTag.PARTIAL_OPERATION,
102 "Toaster is out of bread but we can make you eggs")
106 // Access the ToasterService to make the toast.
108 MakeToastInput toastInput = new MakeToastInputBuilder().setToasterDoneness(Uint32.valueOf(toastDoneness))
109 .setToasterToastType(toastType).build();
111 return toaster.makeToast(toastInput);
115 public Boolean makeScrambledWithWheat() {
117 // This call has to block since we must return a result to the JMX client.
118 RpcResult<Void> result = makeBreakfast(EggsType.SCRAMBLED, WheatBread.VALUE, 2).get();
119 if (result.isSuccessful()) {
120 LOG.info("makeBreakfast succeeded");
122 LOG.warn("makeBreakfast failed: {}", result.getErrors());
125 return result.isSuccessful();
126 } catch (InterruptedException | ExecutionException e) {
127 LOG.warn("An error occurred while maing breakfast", e);
130 return Boolean.FALSE;
134 * Implemented from the ToasterListener interface.
137 public void onToasterOutOfBread(final ToasterOutOfBread notification) {
138 LOG.info("ToasterOutOfBread notification");
139 toasterOutOfBread = true;
143 * Implemented from the ToasterListener interface.
146 public void onToasterRestocked(final ToasterRestocked notification) {
147 LOG.info("ToasterRestocked notification - amountOfBread: {}", notification.getAmountOfBread());
148 toasterOutOfBread = false;