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/**
* 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
*
* 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 org.apache.drill.exec.rpc.control;
import org.apache.drill.exec.proto.BitControl.BitControlHandshake;
import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
import org.apache.drill.exec.rpc.BasicClient;
import org.apache.drill.exec.rpc.ReconnectingConnection;
import org.apache.drill.exec.server.BootStrapContext;
import org.apache.drill.exec.work.batch.ControlMessageHandler;
/**
* Maintains connection between two particular bits.
*/
public class ControlConnectionManager extends ReconnectingConnection<ControlConnection, BitControlHandshake>{
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(ControlConnectionManager.class);
private final DrillbitEndpoint endpoint;
private final ControlMessageHandler handler;
private final BootStrapContext context;
private final DrillbitEndpoint localIdentity;
public ControlConnectionManager(DrillbitEndpoint remoteEndpoint, DrillbitEndpoint localIdentity, ControlMessageHandler handler, BootStrapContext context) {
super(BitControlHandshake.newBuilder().setRpcVersion(ControlRpcConfig.RPC_VERSION).setEndpoint(localIdentity).build(), remoteEndpoint.getAddress(), remoteEndpoint.getControlPort());
assert remoteEndpoint != null : "Endpoint cannot be null.";
assert remoteEndpoint.getAddress() != null && !remoteEndpoint.getAddress().isEmpty(): "Endpoint address cannot be null.";
assert remoteEndpoint.getControlPort() > 0 : String.format("Bit Port must be set to a port between 1 and 65k. Was set to %d.", remoteEndpoint.getControlPort());
this.endpoint = remoteEndpoint;
this.localIdentity = localIdentity;
this.handler = handler;
this.context = context;
}
@Override
protected BasicClient<?, ControlConnection, BitControlHandshake, ?> getNewClient() {
return new ControlClient(endpoint, localIdentity, handler, context, new CloseHandlerCreator());
}
public DrillbitEndpoint getEndpoint() {
return endpoint;
}
}
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