2 * Copyright (c) 2016 Pantheon Technologies s.r.o. 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.openflowplugin.impl.lifecycle;
10 import com.google.common.base.Function;
11 import com.google.common.util.concurrent.Futures;
12 import com.google.common.util.concurrent.ListenableFuture;
13 import java.util.ArrayList;
14 import java.util.HashSet;
15 import java.util.List;
17 import javax.annotation.Nullable;
18 import org.eclipse.jdt.annotation.NonNull;
19 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
20 import org.opendaylight.openflowplugin.api.openflow.OFPContext;
21 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
22 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
23 import org.opendaylight.openflowplugin.api.openflow.lifecycle.ContextChain;
24 import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleService;
25 import org.opendaylight.openflowplugin.api.openflow.rpc.RpcContext;
26 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflow.provider.config.rev160510.ContextChainState;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
31 public class ContextChainImpl implements ContextChain {
33 private static final Logger LOG = LoggerFactory.getLogger(ContextChainImpl.class);
35 private Set<OFPContext> contexts = new HashSet<>();
36 private StatisticsContext statisticsContext;
37 private DeviceContext deviceContext;
38 private RpcContext rpcContext;
39 private volatile ContextChainState contextChainState;
40 private LifecycleService lifecycleService;
41 private ConnectionContext primaryConnectionContext;
43 public ContextChainImpl() {
44 this.contextChainState = ContextChainState.INITIALIZED;
48 public boolean isReady() {
53 public <T extends OFPContext> void addContext(final T context) {
54 if (context instanceof StatisticsContext) {
55 this.statisticsContext = (StatisticsContext) context;
57 if (context instanceof DeviceContext) {
58 this.deviceContext = (DeviceContext) context;
60 if (context instanceof RpcContext) {
61 this.rpcContext = (RpcContext) context;
65 contexts.add(context);
69 public void addLifecycleService(final LifecycleService lifecycleService) {
70 this.lifecycleService = lifecycleService;
74 public ListenableFuture<Void> stopChain(boolean connectionDropped) {
75 //TODO: stopClusterServices change parameter
76 final List<ListenableFuture<Void>> futureList = new ArrayList<>();
77 futureList.add(statisticsContext.stopClusterServices());
78 futureList.add(rpcContext.stopClusterServices());
79 futureList.add(deviceContext.stopClusterServices(connectionDropped));
81 return Futures.transform(Futures.successfulAsList(futureList), new Function<List<Void>, Void>() {
84 public Void apply(@Nullable List<Void> input) {
85 LOG.debug("Closed clustering MASTER services for node {}", deviceContext.getDeviceInfo().getLOGValue());
86 contextChainState = ContextChainState.WORKINGSLAVE;
93 public ListenableFuture<Void> startChain() {
94 if (ContextChainState.INITIALIZED.equals(this.contextChainState)) {
95 return Futures.transform(this.statisticsContext.initialGatherDynamicData(), new Function<Boolean, Void>() {
98 public Void apply(@Nullable Boolean aBoolean) {
99 contextChainState = ContextChainState.WORKINGMASTER;
104 this.contextChainState = ContextChainState.WORKINGMASTER;
106 return Futures.immediateFuture(null);
110 public void close() {
115 public void changePrimaryConnection(final ConnectionContext connectionContext) {
116 this.primaryConnectionContext = connectionContext;
117 this.contextChainState = ContextChainState.INITIALIZED;
118 for (OFPContext context : contexts) {
119 context.replaceConnection(connectionContext);
124 public ContextChainState getContextChainState() {
125 return contextChainState;
129 public ListenableFuture<Void> connectionDropped() {
130 ContextChainState oldState = this.contextChainState;
131 this.contextChainState = ContextChainState.SLEEPING;
132 if (oldState.equals(ContextChainState.WORKINGMASTER)) {
133 return this.stopChain(true);
135 return Futures.immediateFuture(null);
139 public ConnectionContext getPrimaryConnectionContext() {
140 return primaryConnectionContext;
144 public void sleepTheChainAndDropConnection() {
145 this.contextChainState = ContextChainState.SLEEPING;
146 this.primaryConnectionContext.closeConnection(true);
150 public void registerServices(@NonNull final ClusterSingletonServiceProvider clusterSingletonServiceProvider) {
151 this.contextChainState = ContextChainState.WORKINGSLAVE;
152 this.lifecycleService.registerService(
153 clusterSingletonServiceProvider,
155 this.deviceContext.getServiceIdentifier(),
156 this.deviceContext.getDeviceInfo());
160 public void makeDeviceSlave() {
161 this.lifecycleService.makeDeviceSlave(this.deviceContext);
165 public void closePrimaryConnection() {
166 this.primaryConnectionContext.closeConnection(true);
170 public DeviceContext provideDeviceContext() {
171 return this.deviceContext;