Apply formatting
This commit is contained in:
Edward Capriolo
@ -16,142 +16,147 @@ import com.google.code.gossip.GossipSettings;
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import com.google.code.gossip.LocalGossipMember;
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public abstract class GossipManager extends Thread implements NotificationListener {
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/** The maximal number of bytes the packet with the GOSSIP may be. (Default is 100 kb) */
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public static final int MAX_PACKET_SIZE = 102400;
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/** The list of members which are in the gossip group (not including myself). */
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private ArrayList<LocalGossipMember> _memberList;
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/** The maximal number of bytes the packet with the GOSSIP may be. (Default is 100 kb) */
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public static final int MAX_PACKET_SIZE = 102400;
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/** The list of members which are known to be dead. */
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private ArrayList<LocalGossipMember> _deadList;
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/** The member I am representing. */
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private LocalGossipMember _me;
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/** The settings for gossiping. */
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private GossipSettings _settings;
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/** A boolean whether the gossip service should keep running. */
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private AtomicBoolean _gossipServiceRunning;
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/** The list of members which are in the gossip group (not including myself). */
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private ArrayList<LocalGossipMember> _memberList;
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/** The list of members which are known to be dead. */
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private ArrayList<LocalGossipMember> _deadList;
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/** The member I am representing. */
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private LocalGossipMember _me;
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/** The settings for gossiping. */
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private GossipSettings _settings;
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/** A boolean whether the gossip service should keep running. */
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private AtomicBoolean _gossipServiceRunning;
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/** A ExecutorService used for executing the active and passive gossip threads. */
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private ExecutorService _gossipThreadExecutor;
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private Class<? extends PassiveGossipThread> _passiveGossipThreadClass;
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private PassiveGossipThread passiveGossipThread;
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private Class<? extends ActiveGossipThread> _activeGossipThreadClass;
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private ActiveGossipThread activeGossipThread;
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/** A ExecutorService used for executing the active and passive gossip threads. */
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private ExecutorService _gossipThreadExecutor;
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private Class<? extends PassiveGossipThread> _passiveGossipThreadClass;
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private PassiveGossipThread passiveGossipThread;
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private Class<? extends ActiveGossipThread> _activeGossipThreadClass;
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private ActiveGossipThread activeGossipThread;
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public GossipManager(Class<? extends PassiveGossipThread> passiveGossipThreadClass,
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Class<? extends ActiveGossipThread> activeGossipThreadClass, String address, int port,
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String id, GossipSettings settings, ArrayList<GossipMember> gossipMembers) {
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_passiveGossipThreadClass = passiveGossipThreadClass;
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_activeGossipThreadClass = activeGossipThreadClass;
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_settings = settings;
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_me = new LocalGossipMember(address, port, id, 0, this, settings.getCleanupInterval());
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_memberList = new ArrayList<LocalGossipMember>();
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_deadList = new ArrayList<LocalGossipMember>();
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for (GossipMember startupMember : gossipMembers) {
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if (!startupMember.equals(_me)) {
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_passiveGossipThreadClass = passiveGossipThreadClass;
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_activeGossipThreadClass = activeGossipThreadClass;
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_settings = settings;
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_me = new LocalGossipMember(address, port, id, 0, this, settings.getCleanupInterval());
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_memberList = new ArrayList<LocalGossipMember>();
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_deadList = new ArrayList<LocalGossipMember>();
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for (GossipMember startupMember : gossipMembers) {
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if (!startupMember.equals(_me)) {
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LocalGossipMember member = new LocalGossipMember(startupMember.getHost(),
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startupMember.getPort(), startupMember.getId(), 0, this,
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settings.getCleanupInterval());
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_memberList.add(member);
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GossipService.LOGGER.debug(member);
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}
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}
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_gossipServiceRunning = new AtomicBoolean(true);
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Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
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public void run() {
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GossipService.LOGGER.info("Service has been shutdown...");
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}
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}));
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}
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/**
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* All timers associated with a member will trigger this method when it goes
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* off. The timer will go off if we have not heard from this member in
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* <code> _settings.T_CLEANUP </code> time.
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*/
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@Override
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public void handleNotification(Notification notification, Object handback) {
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LocalGossipMember deadMember = (LocalGossipMember) notification.getUserData();
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GossipService.LOGGER.info("Dead member detected: " + deadMember);
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synchronized (this._memberList) {
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this._memberList.remove(deadMember);
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}
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synchronized (this._deadList) {
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this._deadList.add(deadMember);
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}
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}
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_memberList.add(member);
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GossipService.LOGGER.debug(member);
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}
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}
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public GossipSettings getSettings() {
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return _settings;
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}
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_gossipServiceRunning = new AtomicBoolean(true);
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Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
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public void run() {
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GossipService.LOGGER.info("Service has been shutdown...");
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}
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}));
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}
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/**
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* Get a clone of the memberlist.
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* @return
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*/
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public ArrayList<LocalGossipMember> getMemberList() {
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return _memberList;
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}
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public LocalGossipMember getMyself() {
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return _me;
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}
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/**
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* All timers associated with a member will trigger this method when it goes off. The timer will
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* go off if we have not heard from this member in <code> _settings.T_CLEANUP </code> time.
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*/
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@Override
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public void handleNotification(Notification notification, Object handback) {
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LocalGossipMember deadMember = (LocalGossipMember) notification.getUserData();
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GossipService.LOGGER.info("Dead member detected: " + deadMember);
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synchronized (this._memberList) {
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this._memberList.remove(deadMember);
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}
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synchronized (this._deadList) {
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this._deadList.add(deadMember);
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}
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}
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public ArrayList<LocalGossipMember> getDeadList() {
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return _deadList;
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}
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/**
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* Starts the client. Specifically, start the various cycles for this protocol.
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* Start the gossip thread and start the receiver thread.
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* @throws InterruptedException
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*/
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public void run() {
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for (LocalGossipMember member : _memberList) {
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if (member != _me) {
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member.startTimeoutTimer();
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}
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}
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public GossipSettings getSettings() {
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return _settings;
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}
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/**
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* Get a clone of the memberlist.
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*
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* @return
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*/
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public ArrayList<LocalGossipMember> getMemberList() {
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return _memberList;
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}
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public LocalGossipMember getMyself() {
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return _me;
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}
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public ArrayList<LocalGossipMember> getDeadList() {
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return _deadList;
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}
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/**
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* Starts the client. Specifically, start the various cycles for this protocol. Start the gossip
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* thread and start the receiver thread.
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*
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* @throws InterruptedException
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*/
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public void run() {
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for (LocalGossipMember member : _memberList) {
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if (member != _me) {
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member.startTimeoutTimer();
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}
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}
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_gossipThreadExecutor = Executors.newCachedThreadPool();
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try {
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passiveGossipThread = _passiveGossipThreadClass.getConstructor(GossipManager.class).newInstance(this);
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passiveGossipThread = _passiveGossipThreadClass.getConstructor(GossipManager.class)
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.newInstance(this);
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_gossipThreadExecutor.execute(passiveGossipThread);
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activeGossipThread = _activeGossipThreadClass.getConstructor(GossipManager.class).newInstance(this);
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activeGossipThread = _activeGossipThreadClass.getConstructor(GossipManager.class)
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.newInstance(this);
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_gossipThreadExecutor.execute(activeGossipThread);
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} catch (InstantiationException | IllegalAccessException | IllegalArgumentException
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| InvocationTargetException | NoSuchMethodException | SecurityException e1) {
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throw new RuntimeException(e1);
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}
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GossipService.LOGGER.info("The GossipService is started.");
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while(_gossipServiceRunning.get()) {
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try {
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//TODO
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TimeUnit.MILLISECONDS.sleep(1);
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} catch (InterruptedException e) {
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GossipService.LOGGER.info("The GossipClient was interrupted.");
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}
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}
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}
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/**
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* Shutdown the gossip service.
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*/
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public void shutdown() {
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_gossipThreadExecutor.shutdown();
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passiveGossipThread.shutdown();
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activeGossipThread.shutdown();
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try {
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GossipService.LOGGER.info("The GossipService is started.");
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while (_gossipServiceRunning.get()) {
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try {
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// TODO
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TimeUnit.MILLISECONDS.sleep(1);
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} catch (InterruptedException e) {
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GossipService.LOGGER.info("The GossipClient was interrupted.");
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}
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}
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}
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/**
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* Shutdown the gossip service.
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*/
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public void shutdown() {
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_gossipThreadExecutor.shutdown();
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passiveGossipThread.shutdown();
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activeGossipThread.shutdown();
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try {
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boolean result = _gossipThreadExecutor.awaitTermination(1000, TimeUnit.MILLISECONDS);
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System.err.println("Terminate retuned " + result);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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_gossipServiceRunning.set(false);
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}
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_gossipServiceRunning.set(false);
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}
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}
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