BaseZKStarterTest.java

/**
 * Copyright 2016 Yahoo 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.yahoo.pulsar.discovery.service.web;

import static com.yahoo.pulsar.discovery.service.web.ZookeeperCacheLoader.LOADBALANCE_BROKERS_ROOT;

import java.util.concurrent.CompletableFuture;

import org.apache.bookkeeper.util.ZkUtils;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.MockZooKeeper;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.ZooKeeper;

import com.google.common.util.concurrent.MoreExecutors;
import com.yahoo.pulsar.zookeeper.ZooKeeperClientFactory;
import com.yahoo.pulsar.zookeeper.ZookeeperClientFactoryImpl;

public class BaseZKStarterTest {

    protected MockZooKeeper mockZookKeeper;

    protected void start() throws Exception {
        mockZookKeeper = createMockZooKeeper();
    }

    protected void close() throws Exception {
        mockZookKeeper.shutdown();
    }

    /**
     * Create MockZookeeper instance
     * @return
     * @throws Exception
     */
    protected MockZooKeeper createMockZooKeeper() throws Exception {
        MockZooKeeper zk = MockZooKeeper.newInstance(MoreExecutors.sameThreadExecutor());

        ZkUtils.createFullPathOptimistic(zk, LOADBALANCE_BROKERS_ROOT,
                "".getBytes(ZookeeperClientFactoryImpl.ENCODING_SCHEME), ZooDefs.Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);
        return zk;
    }

    protected static class DiscoveryZooKeeperClientFactoryImpl implements ZooKeeperClientFactory {
        static ZooKeeper zk;

        @Override
        public CompletableFuture<ZooKeeper> create(String serverList, SessionType sessionType,
                int zkSessionTimeoutMillis) {
            return CompletableFuture.completedFuture(zk);
        }
    }

}