Example usage for org.apache.zookeeper.server DataTree getData

Introduction

In this page you can find the example usage for org.apache.zookeeper.server DataTree getData.

Prototype

public byte[] getData(String path, Stat stat, Watcher watcher) throws KeeperException.NoNodeException 

Source Link

Usage

From source file:com.linkedin.helix.tools.ZKLogFormatter.java

License:Apache License

private static void traverse(DataTree dt, int startId, String startPath) throws Exception {
    LinkedList<Pair> queue = new LinkedList<Pair>();
    queue.add(new Pair(startPath, startId));
    while (!queue.isEmpty()) {
        Pair pair = queue.removeFirst();
        String path = pair._path;
        DataNode head = dt.getNode(path);
        Stat stat = new Stat();
        byte[] data = null;
        try {/*w ww.  j a va2 s.c o  m*/
            data = dt.getData(path, stat, null);
        } catch (NoNodeException e) {
            e.printStackTrace();
        }
        // print the node
        format(startId, pair, head, data);
        Set<String> children = head.getChildren();
        if (children != null) {
            for (String child : children) {
                String childPath;
                if (path.endsWith("/")) {
                    childPath = path + child;
                } else {
                    childPath = path + "/" + child;
                }
                queue.add(new Pair(childPath, startId));
            }
        }
        startId = startId + 1;
    }

}

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