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.watcher.WatchEventHandlerPmRoot.java

License:Apache License

@Override
public void onChildEvent(WatchedEvent event) throws MgmtZooKeeperException, NoNodeException {
    if (LeaderState.isLeader()) {
        return;//w w w  .  j a  v a 2s  . c o m
    } else {
        registerBoth(event.getPath());

        // Delete
        List<String> deleted = getDeletedChild(event.getPath(), pmImo.getAll());
        for (String pmName : deleted) {
            pmImo.delete(PathUtil.pmPath(pmName));
        }

        // Created
        List<String> created = getCreatedChild(event.getPath(), pmImo.getAll());
        for (String pmName : created) {
            pmImo.load(pmName);
        }
    }
}

From source file:com.navercorp.nbasearc.confmaster.server.watcher.WatchEventHandlerRs.java

License:Apache License

@Override
public void onChildEvent(WatchedEvent event) throws MgmtZooKeeperException {
    registerBoth(event.getPath());

    RedisServer rs = rsImo.getByPath(event.getPath());

    if (rs.getData().getHB().equals(Constant.HB_MONITOR_YES)) {
        rs.getHbc().urgent();//from w w w  . ja  v a  2  s .c o  m
    }

    workflowExecutor.perform(FAILOVER_COMMON, rs);
}

From source file:com.navercorp.nbasearc.confmaster.server.watcher.WatchEventHandlerRs.java

License:Apache License

@Override
public void onChangedEvent(WatchedEvent event) throws MgmtZooKeeperException {
    registerBoth(event.getPath());

    RedisServer rs = rsImo.getByPath(event.getPath());
    if (null == rs) {
        // this znode already removed.
        return;/*  www.  j av  a2s .c  o m*/
    }

    if (LeaderState.isFollower()) {
        zookeeper.reflectZkIntoMemory(rs);
    }

    try {
        rs.updateHBRef();
        if (rs.getData().getHB().equals(Constant.HB_MONITOR_YES)) {
            rs.getHbc().urgent();
        }
    } catch (Exception e) {
        Logger.error("failed while change rs. {} {}", event.getPath(), event, e);
    }
}

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

License:Apache License

public void processChildrenOrDataChangedEvent(WatchedEvent event) {
    Level logLevel = INFO;//w w w  .j  a v  a  2 s.c  o  m

    try {
        PathUtil.WatchTarget wt = PathUtil.getWatchType(event.getPath());
        if (wt == null) {
            return;
        }

        lock(wt, event);

        switch (event.getType()) {
        case NodeDataChanged:
            processChangedEvent(wt, event);
            break;
        case NodeChildrenChanged:
            processChildEvent(wt, event);
            break;
        default:
            break;
        }
    } catch (Exception e) {
        Logger.error("Handle watch event fail. {} {}", event.getPath(), event, e);

        logLevel = DEBUG;
    } finally {
        unlock();
    }

    Logger.flush(logLevel);
}

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

License:Apache License

public void onChangedEventCluster(PathUtil.WatchTarget wt, WatchedEvent event)
        throws MgmtZooKeeperException, NoNodeException {
    if (LeaderState.isLeader()) {
        return;//from ww w .j  ava  2  s  .co  m
    } else {
        zk.registerChangedEventWatcher(event.getPath());

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

        cluster.setPersistentData(zk.getData(cluster.getPath(), null));

        cluster.propagateModeToHeartbeatSession();
    }
}

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

License:Apache License

public void onChildEventClusterRoot(PathUtil.WatchTarget wt, WatchedEvent event)
        throws MgmtZooKeeperException, NoNodeException {
    if (LeaderState.isLeader()) {
        return;/* w w w . ja va2 s  . c om*/
    } else {
        zk.registerChildEventWatcher(event.getPath());

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

        // Created
        List<String> created = getCreatedChildren(event.getPath(), container.getAllCluster());
        for (String clusterName : created) {
            // TDOO : eliminate null
            Cluster.loadClusterFromZooKeeper(context, clusterName);
        }
    }
}

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

License:Apache License

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

    workflowExecutor.perform(TOTAL_INSPECTION);
}

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

License:Apache License

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

    Gateway gw = (Gateway) container.get(event.getPath());

    if (gw.getHeartbeat().equals(Constant.HB_MONITOR_YES)) {
        gw.turnOnUrgentHeartbeat();//from w ww  .ja va  2 s.c  o m
    }

    workflowExecutor.perform(COMMON_STATE_DECISION, gw);
}

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

License:Apache License

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

    Gateway gw = (Gateway) container.get(event.getPath());
    if (null == gw) {
        // this znode already removed.
        return;// ww  w  .java 2  s. c o  m
    }

    Cluster cluster = (Cluster) container.getCluster(PathUtil.getClusterNameFromPath(event.getPath()));
    if (null == cluster) {
        // this znode already removed.
        return;
    }

    if (LeaderState.isFollower()) {
        Stat stat = new Stat();
        gw.setPersistentData(zk.getData(gw.getPath(), stat));
        gw.setZNodeVersion(stat.getVersion());
    }

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

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

License:Apache License

public void onChildEventGwRoot(PathUtil.WatchTarget wt, WatchedEvent event)
        throws NoNodeException, MgmtZooKeeperException {
    if (LeaderState.isLeader()) {
        return;/* w w  w.  ja  v  a  2s .c  o m*/
    } else {
        zk.registerChildEventWatcher(event.getPath());

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

        // Created
        List<String> created = getCreatedChildren(event.getPath(), container.getGwList(wt.clusterName));
        for (String gwName : created) {
            Stat stat = new Stat();
            String gwPath = PathUtil.gwPath(gwName, wt.clusterName);
            byte[] data = zk.getData(gwPath, stat, true);
            Gateway gw = new Gateway(context, wt.clusterName, gwName, data, stat.getVersion());
            zk.registerChildEventWatcher(gwPath);
            container.put(gw.getPath(), gw);
        }
    }
}