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

@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
    try
    {
        final OperationTrace   trace = client.getZookeeperClient().startAdvancedTracer("ExistsBuilderImpl-Background");
        AsyncCallback.StatCallback callback = new AsyncCallback.StatCallback()
        {
            @Override
            public void processResult(int rc, String path, Object ctx, Stat stat)
            {
                trace.setReturnCode(rc).setPath(path).setWithWatcher(watching.getWatcher() != null).setStat(stat).commit();
                CuratorEvent event = new CuratorEventImpl(client, CuratorEventType.EXISTS, rc, path, null, ctx, stat, null, null, null, null);
                client.processBackgroundOperation(operationAndData, event);
            }
        };
        if ( watching.isWatched() )
        {
            client.getZooKeeper().exists(operationAndData.getData(), true, callback, backgrounding.getContext());
        }
        else
        {
            client.getZooKeeper().exists(operationAndData.getData(), watching.getWatcher(), callback, backgrounding.getContext());
        }
    }
    catch ( Throwable e )
    {
        backgrounding.checkError(e);
    }
}
 

@Override
public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception
{
    try
    {
        final OperationTrace   trace = client.getZookeeperClient().startAdvancedTracer("ExistsBuilderImpl-Background");
        AsyncCallback.StatCallback callback = new AsyncCallback.StatCallback()
        {
            @Override
            public void processResult(int rc, String path, Object ctx, Stat stat)
            {
                watching.commitWatcher(rc, true);
                trace.setReturnCode(rc).setPath(path).setWithWatcher(watching.hasWatcher()).setStat(stat).commit();
                CuratorEvent event = new CuratorEventImpl(client, CuratorEventType.EXISTS, rc, path, null, ctx, stat, null, null, null, null, null);
                client.processBackgroundOperation(operationAndData, event);
            }
        };
        if ( watching.isWatched() )
        {
            client.getZooKeeper().exists(operationAndData.getData(), true, callback, backgrounding.getContext());
        }
        else
        {
            client.getZooKeeper().exists(operationAndData.getData(), watching.getWatcher(operationAndData.getData()), callback, backgrounding.getContext());
        }
    }
    catch ( Throwable e )
    {
        backgrounding.checkError(e, watching);
    }
}
 

/**
 * @param path Path.
 * @param watcher Watcher.
 * @param cb Callback.
 */
void existsAsync(String path, Watcher watcher, AsyncCallback.StatCallback cb) {
    ExistsOperation op = new ExistsOperation(path, watcher, cb);

    zk.exists(path, watcher, new StatCallbackWrapper(op), null);
}
 

/**
 * @param path Path.
 * @param watcher Watcher.
 * @param cb Callback.
 */
ExistsOperation(String path, Watcher watcher, AsyncCallback.StatCallback cb) {
    this.path = path;
    this.watcher = watcher;
    this.cb = cb;
}
 

public void exists(final String path, final Watcher watcher, final AsyncCallback.StatCallback cb, final Object ctx) {
    zooKeeper.exists(path, watcher, cb, ctx);
}
 

public void exists(final String path, final boolean watch, final AsyncCallback.StatCallback cb, final Object ctx) {
    zooKeeper.exists(path, watch, cb, ctx);
}
 

public void setData(final String path, final byte[] data, final int version, final AsyncCallback.StatCallback cb, final Object ctx) {
    zooKeeper.setData(path, data, version, cb, ctx);
}
 

public void setACL(final String path, final List<ACL> acl, final int version, final AsyncCallback.StatCallback cb, final Object ctx) {
    zooKeeper.setACL(path, acl, version, cb, ctx);
}
 

@Override
public void exists(String path, Watcher watcher, AsyncCallback.StatCallback cb, Object ctx) {
    delegate.exists(path, watcher, cb, ctx);
}
 

@Override
public void exists(String path, boolean watch, AsyncCallback.StatCallback cb, Object ctx) {
    delegate.exists(path, watch, cb, ctx);
}
 

@Override
public void setData(String path, byte[] data, int version, AsyncCallback.StatCallback cb, Object ctx) {
    delegate.setData(path, data, version, cb, ctx);
}
 

@Override
public void setACL(String path, List<ACL> acl, int version, AsyncCallback.StatCallback cb, Object ctx) {
    delegate.setACL(path, acl, version, cb, ctx);
}
 

void exists(String path, Watcher watcher, AsyncCallback.StatCallback cb, Object ctx); 

void exists(String path, boolean watch, AsyncCallback.StatCallback cb, Object ctx); 

void setData(String path, byte[] data, int version, AsyncCallback.StatCallback cb, Object ctx); 

void setACL(String path, List<ACL> acl, int version, AsyncCallback.StatCallback cb, Object ctx);