Example usage for org.apache.zookeeper WatchedEvent getPath

Introduction

In this page you can find the example usage for org.apache.zookeeper WatchedEvent getPath.

Prototype

public String getPath()

Source Link

Usage

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChangedEventPg(PathUtil.WatchTarget wt, WatchedEvent event) throws MgmtZooKeeperException {
    if (LeaderState.isLeader()) {
        return;/*from   ww w. j a  v a2 s . c  o  m*/
    } else {
        zk.registerChangedEventWatcher(event.getPath());

        PartitionGroup pg = (PartitionGroup) container.get(event.getPath());
        if (null == pg) {
            // this znode already removed.
            return;
        }

        try {
            pg.setPersistentData(zk.getData(pg.getPath(), null));
        } catch (NoNodeException e) {
            throw new MgmtZooKeeperException(e);
        }
    }
}

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChildEventPgRoot(PathUtil.WatchTarget wt, WatchedEvent event)
        throws NoNodeException, MgmtZooKeeperException {
    if (LeaderState.isLeader()) {
        return;//from   w w  w  . j av a2s  .  c  o m
    } else {
        zk.registerChildEventWatcher(event.getPath());

        // Delete
        List<String> deleted = getDeletedChildren(event.getPath(), container.getPgList(wt.clusterName));
        for (String pgName : deleted) {
            container.delete(PathUtil.pgPath(pgName, wt.clusterName));
        }

        // Created
        List<String> created = getCreatedChildren(event.getPath(), container.getPgList(wt.clusterName));
        for (String pgName : created) {
            final String pgPath = PathUtil.pgPath(pgName, wt.clusterName);
            byte[] data = zk.getData(pgPath, null, true);
            PartitionGroup pg = new PartitionGroup(context, pgPath, pgName, wt.clusterName, data);
            zk.registerChildEventWatcher(pgPath);
            container.put(pg.getPath(), pg);
        }
    }
}

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChildEventPgs(PathUtil.WatchTarget wt, WatchedEvent event) throws MgmtZooKeeperException {
    zk.registerChildEventWatcher(event.getPath());

    PartitionGroupServer pgs = (PartitionGroupServer) container.get(event.getPath());

    if (!event.getPath().equals(pgs.getPath())) {
        Logger.error("PATH INCONSISTENCY");
        return;//from   w w w.jav  a  2s . c  om
    }

    if (pgs.getHeartbeat().equals(Constant.HB_MONITOR_YES)) {
        pgs.turnOnUrgentHeartbeat();
    }

    workflowExecutor.perform(PGS_STATE_DECISION, pgs);
}

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChangedEventPgs(PathUtil.WatchTarget wt, WatchedEvent event) throws MgmtZooKeeperException {
    zk.registerChangedEventWatcher(event.getPath());

    PartitionGroupServer pgs = (PartitionGroupServer) container.get(event.getPath());
    if (null == pgs) {
        // this znode already removed.
        return;/*from  ww  w  .  j  a v  a2  s.c o  m*/
    }

    if (LeaderState.isFollower()) {
        Stat stat = new Stat();
        try {
            byte[] d = zk.getData(pgs.getPath(), stat);
            pgs.setPersistentData(d);
            pgs.setZNodeVersion(stat.getVersion());
        } catch (NoNodeException e) {
            throw new MgmtZooKeeperException(e);
        }
    }

    try {
        pgs.propagateStateToHeartbeatSession();
        if (pgs.getHeartbeat().equals(Constant.HB_MONITOR_YES)) {
            pgs.turnOnUrgentHeartbeat();
        }
    } catch (Exception e) {
        Logger.error("Change pgs fail. {}", pgs, e);
    }
}

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChildEventPgsRoot(PathUtil.WatchTarget wt, WatchedEvent event) throws MgmtZooKeeperException {
    if (LeaderState.isLeader()) {
        return;/*from w  ww .  j  a  va  2s . com*/
    } else {
        zk.registerChildEventWatcher(event.getPath());

        // Delete
        List<String> deleted = getDeletedChildren(event.getPath(), container.getPgsList(wt.clusterName));
        for (String pgsName : deleted) {
            container.delete(PathUtil.pgsPath(pgsName, wt.clusterName));
            container.delete(PathUtil.rsPath(pgsName, wt.clusterName));
        }

        // Created
        List<String> created = getCreatedChildren(event.getPath(), container.getPgsList(wt.clusterName));
        for (String pgsName : created) {
            try {
                Stat stat = new Stat();
                String path = PathUtil.pgsPath(pgsName, wt.clusterName);
                byte[] d = context.getBean(ZooKeeperHolder.class).getData(path, stat, true);
                PartitionGroupServer pgs = new PartitionGroupServer(context, d, wt.clusterName, pgsName,
                        stat.getVersion());
                zk.registerChildEventWatcher(path);
                container.put(pgs.getPath(), pgs);

                String rsPath = PathUtil.rsPath(pgsName, wt.clusterName);
                d = zk.getData(rsPath, stat, true);
                RedisServer rs = new RedisServer(context, d, wt.clusterName, pgsName, pgs.getPgId(),
                        stat.getVersion());
                zk.registerChildEventWatcher(rsPath);
                container.put(rs.getPath(), rs);
            } catch (Exception e) {
                Logger.error("Load pgs fail. cluster:{}/pgs:{}", wt.clusterName, pgsName, e);
            }

        }
    }
}

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChildEventRs(PathUtil.WatchTarget wt, WatchedEvent event) throws MgmtZooKeeperException {
    zk.registerChildEventWatcher(event.getPath());

    RedisServer rs = (RedisServer) container.get(event.getPath());

    if (rs.getHeartbeat().equals(Constant.HB_MONITOR_YES)) {
        rs.turnOnUrgentHeartbeat();//from  w ww.j av a2s  . c  o  m
    }

    workflowExecutor.perform(COMMON_STATE_DECISION, rs);
}

From source file:com.navercorp.nbasearc.confmaster.server.WatchEventHandler.java

License:Apache License

public void onChangedEventRs(PathUtil.WatchTarget wt, WatchedEvent event) throws MgmtZooKeeperException {
    zk.registerChangedEventWatcher(event.getPath());

    RedisServer rs = (RedisServer) container.get(event.getPath());
    if (null == rs) {
        // this znode already removed.
        return;/*from   w  w  w . ja  va2s . c o  m*/
    }

    if (LeaderState.isFollower()) {
        Stat stat = new Stat();
        try {
            byte[] d = zk.getData(rs.getPath(), stat);
            rs.setPersistentData(d);
            rs.setZNodeVersion(stat.getVersion());
        } catch (NoNodeException e) {
            throw new MgmtZooKeeperException(e);
        }
    }

    try {
        rs.propagateStateToHeartbeatSession();
        if (rs.getHeartbeat().equals(Constant.HB_MONITOR_YES)) {
            rs.turnOnUrgentHeartbeat();
        }
    } catch (Exception e) {
        Logger.error("failed while change rs. {} {}", event.getPath(), event, e);
    }
}

From source file:com.navercorp.pinpoint.flink.cluster.FlinkServerRegister.java

License:Apache License

@SuppressWarnings("deprecation")
@Override//from  w  ww . ja va 2 s  . c om
public void process(WatchedEvent event) {
    logger.info("Handle Zookeeper Event({}) started.", event);

    KeeperState state = event.getState();
    EventType eventType = event.getType();
    String path = event.getPath();

    // when this happens, ephemeral node disappears
    // reconnects automatically, and process gets notified for all events
    boolean result = false;
    if (ZookeeperUtils.isDisconnectedEvent(event)) {
        result = handleDisconnected();
        if (state == KeeperState.Expired) {
            client.reconnectWhenSessionExpired();
        }
    } else if (state == KeeperState.SyncConnected || state == KeeperState.NoSyncConnected) {
        if (eventType == EventType.None) {
            result = handleConnected();
        } else if (eventType == EventType.NodeChildrenChanged) {
            logger.info("zookeeper Event occurs : NodeChildrenChanged event");
        } else if (eventType == EventType.NodeDeleted) {
            logger.info("zookeeper Event occurs : NodeDeleted");
        } else if (eventType == EventType.NodeDataChanged) {
            logger.info("zookeeper Event occurs : NodeDataChanged");
        }
    }

    if (result) {
        logger.info("Handle Zookeeper Event({}) completed.", event);
    } else {
        logger.info("Handle Zookeeper Event({}) failed.", event);
    }
}

From source file:com.navercorp.pinpoint.web.cluster.zookeeper.ZookeeperClusterManager.java

License:Apache License

@SuppressWarnings("deprecation")
@Override//from  w  w w. jav a2 s  .  c  o  m
public void process(WatchedEvent event) {
    synchronized (initializeLock) {
        // wait for client variable to be assigned.
    }

    logger.info("Zookeeper Event({}) occurred.", event);

    KeeperState state = event.getState();
    EventType eventType = event.getType();
    String path = event.getPath();

    // when this happens, ephemeral node disappears
    // reconnects automatically, and process gets notified for all events
    boolean result = false;
    if (ZookeeperUtils.isDisconnectedEvent(event)) {
        result = handleDisconnected();
        if (state == KeeperState.Expired) {
            client.reconnectWhenSessionExpired();
        }
    } else if (state == KeeperState.SyncConnected || state == KeeperState.NoSyncConnected) {
        if (eventType == EventType.None) {
            result = handleConnected();
        } else if (eventType == EventType.NodeChildrenChanged) {
            result = handleNodeChildrenChanged(path);
        } else if (eventType == EventType.NodeDeleted) {
            result = handleNodeDeleted(path);
        } else if (eventType == EventType.NodeDataChanged) {
            result = handleNodeDataChanged(path);
        }
    }

    if (result) {
        logger.info("Zookeeper Event({}) succeeded.", event);
    } else {
        logger.info("Zookeeper Event({}) failed.", event);
    }
}

From source file:com.navercorp.redis.cluster.gateway.NodeWatcher.java

License:Apache License

/**
 * @param event//  w  ww  .j  a  v  a 2  s  . co m
 * @see org.apache.zookeeper.Watcher#process(org.apache.zookeeper.WatchedEvent)
 */
public void process(WatchedEvent event) {
    log.debug("[NodeWatcher] Zookeeper watched");
    log.info("[NodeWatcher] Event {type=" + event.getType() + ", state=" + event.getState() + ", path="
            + event.getPath() + "}");

    if (event.getType() == Event.EventType.None) {
        switch (event.getState()) {
        case SyncConnected:
            log.debug("[NodeWatcher] SyncConnected");
            this.connLatcher.countDown();
            break;
        default:

        }
    } else if (event.getType() == Event.EventType.NodeChildrenChanged) {
        log.debug("[NodeWatcher] NodeChildrenChanged");
        reloadGatewaylist();
        reloadGatewayAffinity();
    } else if (event.getType() == Event.EventType.NodeDataChanged) {
        log.debug("[NodeWatcher] NodeDataChanged");
        reloadGatewayAffinity();
    } else if (event.getType() == Event.EventType.NodeDeleted) {
        log.debug("[NodeWatcher] NodeDeleted");
    } else if (event.getType() == Event.EventType.NodeCreated) {
        log.debug("[NodeWatcher] NodeCreated");
    }
}