Examples of org.apache.zookeeper_voltpatches.Watcher

Package org.apache.zookeeper_voltpatches

Examples of org.apache.zookeeper_voltpatches.Watcher

org.apache.zookeeper_voltpatches.Watcher
This interface specifies the public interface an event handler class must implement. A ZooKeeper client will get various events from the ZooKeepr server it connects to. An application using such a client handles these events by registering a callback object with the client. The callback object is expected to be an instance of a class that implements Watcher interface.

            newChildren.removeAll(m_lastKnownSnapshots);
            m_lastKnownSnapshots = children;
            for (String newSnapshot : newChildren) {
                String path = VoltZK.completed_snapshots + "/" + newSnapshot;
                try {
                    byte data[] = m_zk.getData(path, new Watcher() {
                        @Override
                        public void process(final WatchedEvent event) {
                            switch (event.getType()) {
                            case NodeDataChanged:
                                m_es.execute(new Runnable() {

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        }
    }


    private void processSnapshotDataChangedEvent(final WatchedEvent event) {
        try {
            byte data[] = m_zk.getData(event.getPath(), new Watcher() {
                @Override
                public void process(final WatchedEvent event) {
                    switch (event.getType()) {
                    case NodeDataChanged:
                        m_es.execute(new Runnable() {

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    }


    protected ZooKeeper getClient(int site) throws Exception {
        final Semaphore permit = new Semaphore(0);
        int clientPort = m_siteIdToZKPort.get(site);
        ZooKeeper keeper = new ZooKeeper("127.0.0.1:" + Integer.toString(clientPort), 4000, new Watcher() {
            @Override
            public void process(WatchedEvent event) {
                if (event.getState() == KeeperState.SyncConnected) {
                    permit.release();
                }

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        return baos.toByteArray();
    }


    public static final ZooKeeper getClient(String zkAddress, int timeout, Set<Long> verbotenThreads) throws Exception {
        final Semaphore zkConnect = new Semaphore(0);
        ZooKeeper zk = new ZooKeeper(zkAddress, 2000, new Watcher() {
            @Override
            public void process(WatchedEvent event) {
                if (event.getState() == KeeperState.SyncConnected) {
                    zkConnect.release();
                }

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     */
    private void leaderElection() {
        loggingLog.info("Starting leader election for snapshot truncation daemon");
        try {
            while (true) {
                Stat stat = m_zk.exists(VoltZK.snapshot_truncation_master, new Watcher() {
                    @Override
                    public void process(WatchedEvent event) {
                        switch(event.getType()) {
                        case NodeDeleted:
                            loggingLog.info("Detected the snapshot truncation leader's ephemeral node deletion");

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            final String requestId,
            final long clientHandle,
            final Connection c,
            final boolean notifyChanges) throws Exception {
        final String responseNode = VoltZK.user_snapshot_response + requestId;
        Stat exists = m_zk.exists(responseNode, new Watcher() {
            @Override
            public void process(final WatchedEvent event) {
                if (event.getState() == KeeperState.Disconnected) return;
                switch (event.getType()) {
                case NodeCreated:

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         * If the caller wants to be notified of final results for the snapshot
         * request, set up a watcher only if the snapshot is queued.
         */
        if (notifyChanges && (response.getStatus() == ClientResponse.SUCCESS) &&
            SnapshotUtil.isSnapshotQueued(response.getResults())) {
            Watcher watcher = new Watcher() {
                @Override
                public void process(final WatchedEvent event) {
                    if (event.getState() == KeeperState.Disconnected) return;
                    switch (event.getType()) {
                    case NodeCreated:

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            }
        });
    }


    private Watcher constructLeaderChildWatcher(final Integer partition) {
        return new Watcher() {
            @Override
            public void process(final WatchedEvent event) {
                final Runnable processRunnable = new Runnable() {
                    @Override
                    public void run() {

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        }


    }


    private Watcher constructMailboxChildWatcher() {
        return new Watcher() {


            @Override
            public void process(final WatchedEvent event) {
                m_childUpdatingThread.submit(new Runnable() {
                    @Override

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Related Classes of org.apache.zookeeper_voltpatches.Watcher

org.voltcore.zk.ZKTestBase

org.voltcore.zk.ZKUtil

org.voltdb.export.ExportGeneration

org.voltdb.SnapshotCompletionMonitor

org.voltdb.SnapshotDaemon

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