com.facebook.zookeeper.convenience.ZkQuickConnection.java Source code

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Here is the source code for com.facebook.zookeeper.convenience.ZkQuickConnection.java

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/*
 * Copyright (C) 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.zookeeper.convenience;

import com.facebook.zookeeper.BasicZooKeeperFactory;
import com.facebook.zookeeper.ZooKeeperFactory;
import com.facebook.zookeeper.ZooKeeperIface;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;

import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class ZkQuickConnection {
    private final ZooKeeperIface zk;

    private ZkQuickConnection(ZooKeeperFactory zooKeeperFactory, int connectionTimeoutMillis)
            throws IOException, InterruptedException, TimeoutException {
        final CountDownLatch latch = new CountDownLatch(1);
        zk = zooKeeperFactory.create(new Watcher() {
            @Override
            public void process(WatchedEvent event) {
                if (event.getState() == Watcher.Event.KeeperState.SyncConnected) {
                    latch.countDown();
                }
            }
        });
        if (!latch.await(connectionTimeoutMillis, TimeUnit.MILLISECONDS)) {
            zk.close();
            throw new TimeoutException("Failed to connect to ZooKeeper");
        }
    }

    public ZkQuickConnection(String server, int zkTimeoutMillis, int connectTimeoutMillis)
            throws IOException, InterruptedException, TimeoutException {
        this(new BasicZooKeeperFactory(server, zkTimeoutMillis), connectTimeoutMillis);
    }

    public ZkQuickConnection(String server, int zkTimeoutMillis)
            throws IOException, InterruptedException, TimeoutException {
        this(server, zkTimeoutMillis, 10000);
    }

    public ZooKeeperIface getZk() {
        return zk;
    }

    public void close() throws InterruptedException {
        zk.close();
    }
}