com.datastax.driver.core.DefaultEndPointFactory Maven / Gradle / Ivy
/*
* Copyright DataStax, 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.datastax.driver.core;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultEndPointFactory implements EndPointFactory {
private static final Logger logger = LoggerFactory.getLogger(ControlConnection.class);
private static final InetAddress BIND_ALL_ADDRESS;
static {
try {
BIND_ALL_ADDRESS = InetAddress.getByAddress(new byte[4]);
} catch (UnknownHostException e) {
throw new RuntimeException(e);
}
}
private volatile Cluster cluster;
@Override
public void init(Cluster cluster) {
this.cluster = cluster;
}
@Override
public EndPoint create(Row peersRow) {
if (peersRow.getColumnDefinitions().contains("native_address")) {
InetAddress nativeAddress = peersRow.getInet("native_address");
int nativePort = peersRow.getInt("native_port");
InetSocketAddress translateAddress =
cluster.manager.translateAddress(new InetSocketAddress(nativeAddress, nativePort));
return new TranslatedAddressEndPoint(translateAddress);
} else {
InetAddress broadcastAddress = peersRow.getInet("peer");
InetAddress rpcAddress = peersRow.getInet("rpc_address");
if (broadcastAddress == null || rpcAddress == null) {
return null;
} else if (rpcAddress.equals(BIND_ALL_ADDRESS)) {
logger.warn(
"Found host with 0.0.0.0 as rpc_address, "
+ "using broadcast_address ({}) to contact it instead. "
+ "If this is incorrect you should avoid the use of 0.0.0.0 server side.",
broadcastAddress);
rpcAddress = broadcastAddress;
}
InetSocketAddress translateAddress = cluster.manager.translateAddress(rpcAddress);
return new TranslatedAddressEndPoint(translateAddress);
}
}
}