public void createNode(String data) {
try {
if (zk.exists(znode, this) != null) {
System.out.println(" exists znode " + znode);
try {
zk.setData(znode, data.getBytes(), -1);
} catch (KeeperException | InterruptedException e) {
e.printStackTrace();
}
} else {
System.out.println("not exists znode " + znode);
zk.create(znode, data.getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}
} catch (KeeperException | InterruptedException e1) {
e1.printStackTrace();
}
}
public void consume() {
while (true) {
if (zooKeeper != null) {
synchronized (mutex) {
try {
List<String> children = zooKeeper.getChildren(root, true);
if (children.size() == 0) {
mutex.wait();
} else {
Stat stat = new Stat();
String minElement = root + "/" + min(children);
String value = new String(zooKeeper.getData(minElement, false, stat));
System.out.println(value);
zooKeeper.delete(minElement, stat.getVersion());
}
} catch (KeeperException | InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
