/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.worker;
import alluxio.Configuration;
import alluxio.PropertyKey;
import alluxio.util.CommonUtils;
import com.google.common.base.Throwables;
import java.io.Closeable;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import javax.annotation.concurrent.ThreadSafe;
/**
* Defines how to interact with a server running the data protocol.
*/
public interface DataServer extends Closeable {
/**
* Factory for {@link DataServer}.
*/
@ThreadSafe
class Factory {
private Factory() {} // prevent instantiation
/**
* Factory for {@link DataServer}.
*
* @param dataAddress the address of the data server
* @param worker the Alluxio worker handle
* @return the generated {@link DataServer}
*/
public static DataServer create(final SocketAddress dataAddress,
final WorkerProcess worker) {
try {
return CommonUtils.createNewClassInstance(
Configuration.<DataServer>getClass(PropertyKey.WORKER_DATA_SERVER_CLASS),
new Class[] {SocketAddress.class, WorkerProcess.class},
new Object[] {dataAddress, worker});
} catch (Exception e) {
throw Throwables.propagate(e);
}
}
}
/**
* Gets the actual bind socket address. It is either a {@link InetSocketAddress} or a
* {@link io.netty.channel.unix.DomainSocketAddress}.
*
* @return the bind socket address
*/
SocketAddress getBindAddress();
/**
* Checks if the {@link DataServer} is closed.
*
* @return true if the {@link DataServer} is closed, false otherwise
*/
boolean isClosed();
}