/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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 org.apache.drill.exec.coord.zk;
import com.google.common.base.Preconditions;
import org.apache.curator.framework.CuratorFramework;
import org.apache.drill.common.exceptions.DrillRuntimeException;
import org.apache.drill.exec.coord.store.TransientStore;
import org.apache.drill.exec.coord.store.TransientStoreConfig;
import org.apache.drill.exec.coord.store.TransientStoreFactory;
public class ZkTransientStoreFactory implements TransientStoreFactory {
private final CuratorFramework curator;
public ZkTransientStoreFactory(final CuratorFramework curator) {
this.curator = Preconditions.checkNotNull(curator, "curator is required");
}
@Override
public <V> ZkEphemeralStore<V> getOrCreateStore(TransientStoreConfig<V> config) {
final ZkEphemeralStore<V> store = new ZkEphemeralStore<>(config, curator);
try {
store.start();
} catch (final Exception e) {
throw new DrillRuntimeException("unable to start zookeeper transient store", e);
}
return store;
}
@Override
public void close() throws Exception {
}
}