com.xiaomi.linden.core.ZooKeeperService.java Source code

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Here is the source code for com.xiaomi.linden.core.ZooKeeperService.java

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// Copyright 2016 Xiaomi, 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.xiaomi.linden.core;

import com.xiaomi.linden.common.EmbeddedZooKeeper;
import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;

public class ZooKeeperService {
    private static EmbeddedZooKeeper zkServer;
    private static final String ZK_DATA_DIR = "./target/mock_zk";

    public static synchronized void start() {
        if (zkServer == null) {
            File file = new File(ZK_DATA_DIR);
            if (file.exists()) {
                try {
                    FileUtils.deleteDirectory(new File(ZK_DATA_DIR));
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            zkServer = new EmbeddedZooKeeper(file, 2181);
            try {
                zkServer.start();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}