Java Code Examples for org.apache.zookeeper.AsyncCallback#StringCallback

The following examples show how to use org.apache.zookeeper.AsyncCallback#StringCallback . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: LedgerAllocatorPool.java    From distributedlog with Apache License 2.0 5 votes vote down vote up 
private void createAllocators(int numAllocators) throws InterruptedException, IOException {
    final AtomicInteger numPendings = new AtomicInteger(numAllocators);
    final AtomicInteger numFailures = new AtomicInteger(0);
    final CountDownLatch latch = new CountDownLatch(1);
    AsyncCallback.StringCallback createCallback = new AsyncCallback.StringCallback() {
        @Override
        public void processResult(int rc, String path, Object ctx, String name) {
            if (KeeperException.Code.OK.intValue() != rc) {
                numFailures.incrementAndGet();
                latch.countDown();
                return;
            }
            if (numPendings.decrementAndGet() == 0 && numFailures.get() == 0) {
                latch.countDown();
            }
        }
    };
    for (int i = 0; i < numAllocators; i++) {
        zkc.get().create(poolPath + "/A", new byte[0],
                         zkc.getDefaultACL(),
                         CreateMode.PERSISTENT_SEQUENTIAL,
                         createCallback, null);
    }
    latch.await();
    if (numFailures.get() > 0) {
        throw new IOException("Failed to create " + numAllocators + " allocators.");
    }
}
Example 2
Source File: LedgerAllocatorPool.java    From distributedlog with Apache License 2.0 5 votes vote down vote up 
private void createAllocators(int numAllocators) throws InterruptedException, IOException {
    final AtomicInteger numPendings = new AtomicInteger(numAllocators);
    final AtomicInteger numFailures = new AtomicInteger(0);
    final CountDownLatch latch = new CountDownLatch(1);
    AsyncCallback.StringCallback createCallback = new AsyncCallback.StringCallback() {
        @Override
        public void processResult(int rc, String path, Object ctx, String name) {
            if (KeeperException.Code.OK.intValue() != rc) {
                numFailures.incrementAndGet();
                latch.countDown();
                return;
            }
            if (numPendings.decrementAndGet() == 0 && numFailures.get() == 0) {
                latch.countDown();
            }
        }
    };
    for (int i = 0; i < numAllocators; i++) {
        zkc.get().create(poolPath + "/A", new byte[0],
                         zkc.getDefaultACL(),
                         CreateMode.PERSISTENT_SEQUENTIAL,
                         createCallback, null);
    }
    latch.await();
    if (numFailures.get() > 0) {
        throw new IOException("Failed to create " + numAllocators + " allocators.");
    }
}
Example 3
Source File: ZookeeperClient.java    From ignite with Apache License 2.0 5 votes vote down vote up 
/**
 * @param path Path.
 * @param data Data.
 * @param createMode Create mode.
 * @param cb Callback.
 */
private void createAsync(String path, byte[] data, CreateMode createMode, AsyncCallback.StringCallback cb) {
    if (data == null)
        data = EMPTY_BYTES;

    CreateOperation op = new CreateOperation(path, data, createMode, cb);

    zk.create(path, data, ZK_ACL, createMode, new CreateCallbackWrapper(op), null);
}
Example 4
Source File: ZookeeperClient.java    From ignite with Apache License 2.0 5 votes vote down vote up 
/**
 * @param path path.
 * @param data Data.
 * @param createMode Create mode.
 * @param cb Callback.
 */
CreateOperation(String path, byte[] data, CreateMode createMode, AsyncCallback.StringCallback cb) {
    this.path = path;
    this.data = data;
    this.createMode = createMode;
    this.cb = cb;
}
Example 5
Source File: ZooKeeperConnection.java    From util with Apache License 2.0 5 votes vote down vote up 
public void create(
        final String path,
        final byte[] data,
        final List<ACL> acl,
        final CreateMode createMode,
        final AsyncCallback.StringCallback cb,
        final Object ctx
) {
    zooKeeper.create(path, data, acl, createMode, cb, ctx);
}
Example 6
Source File: AdminResource.java    From pulsar with Apache License 2.0 4 votes vote down vote up 
protected void zkCreateOptimisticAsync(ZooKeeper zk, String path, byte[] content, AsyncCallback.StringCallback callback) {
    ZkUtils.asyncCreateFullPathOptimistic(zk, path, content, ZooDefs.Ids.OPEN_ACL_UNSAFE,
            CreateMode.PERSISTENT, callback, null);
}
Example 7
Source File: ZooKeeperImpl.java    From hbase-indexer with Apache License 2.0 4 votes vote down vote up 
@Override
public void create(String path, byte[] data, List<ACL> acl, CreateMode createMode, AsyncCallback.StringCallback cb, Object ctx) {
    delegate.create(path, data, acl, createMode, cb, ctx);
}
Example 8
Source File: ZKUtil.java    From hbase with Apache License 2.0 3 votes vote down vote up 
/**
 * Async creates the specified node with the specified data.
 *
 * <p>Throws an exception if the node already exists.
 *
 * <p>The node created is persistent and open access.
 *
 * @param zkw zk reference
 * @param znode path of node to create
 * @param data data of node to create
 * @param cb the callback to use for the creation
 * @param ctx the context to use for the creation
 */
public static void asyncCreate(ZKWatcher zkw,
    String znode, byte [] data, final AsyncCallback.StringCallback cb,
    final Object ctx) {
  zkw.getRecoverableZooKeeper().getZooKeeper().create(znode, data,
      createACL(zkw, znode), CreateMode.PERSISTENT, cb, ctx);
}
Example 9
Source File: ZooKeeperItf.java    From hbase-indexer with Apache License 2.0 votes vote down vote up 
void create(String path, byte[] data, List<ACL> acl, CreateMode createMode, AsyncCallback.StringCallback cb, Object ctx);