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EdgeToCoreClient.java
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EdgeToCoreClient.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.coreedge.catchup.storecopy.edge;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.LengthFieldPrepender;
import io.netty.handler.timeout.IdleStateHandler;
import java.util.concurrent.TimeUnit;
import org.neo4j.coreedge.catchup.CatchupClientProtocol;
import org.neo4j.coreedge.catchup.ClientMessageTypeHandler;
import org.neo4j.coreedge.catchup.RequestMessageTypeEncoder;
import org.neo4j.coreedge.catchup.ResponseMessageTypeEncoder;
import org.neo4j.coreedge.catchup.storecopy.CoreClient;
import org.neo4j.coreedge.catchup.storecopy.FileContentHandler;
import org.neo4j.coreedge.catchup.storecopy.FileHeaderDecoder;
import org.neo4j.coreedge.catchup.storecopy.FileHeaderHandler;
import org.neo4j.coreedge.catchup.tx.edge.TxPullRequestEncoder;
import org.neo4j.coreedge.catchup.tx.edge.TxPullResponseDecoder;
import org.neo4j.coreedge.catchup.tx.edge.TxPullResponseHandler;
import org.neo4j.coreedge.catchup.tx.edge.TxStreamFinishedResponseDecoder;
import org.neo4j.coreedge.catchup.tx.edge.TxStreamFinishedResponseHandler;
import org.neo4j.coreedge.discovery.EdgeTopologyService;
import org.neo4j.coreedge.server.IdleChannelReaperHandler;
import org.neo4j.coreedge.server.NonBlockingChannels;
import org.neo4j.coreedge.server.logging.ExceptionLoggingHandler;
import org.neo4j.kernel.monitoring.Monitors;
import org.neo4j.logging.LogProvider;
public class EdgeToCoreClient extends CoreClient
{
public EdgeToCoreClient( LogProvider logProvider, ChannelInitializer channelInitializer, Monitors monitors,
int maxQueueSize, NonBlockingChannels nonBlockingChannels, EdgeTopologyService discoveryService,
long logThresholdMillis )
{
super( logProvider, channelInitializer, monitors, maxQueueSize, nonBlockingChannels, discoveryService,
logThresholdMillis );
}
public static class ChannelInitializer extends io.netty.channel.ChannelInitializer<SocketChannel>
{
private final LogProvider logProvider;
private NonBlockingChannels nonBlockingChannels;
private EdgeToCoreClient owner;
public ChannelInitializer( LogProvider logProvider, NonBlockingChannels nonBlockingChannels )
{
this.logProvider = logProvider;
this.nonBlockingChannels = nonBlockingChannels;
}
public void setOwner( EdgeToCoreClient client )
{
this.owner = client;
}
@Override
protected void initChannel( SocketChannel ch ) throws Exception
{
CatchupClientProtocol protocol = new CatchupClientProtocol();
ChannelPipeline pipeline = ch.pipeline();
pipeline.addLast( new LengthFieldBasedFrameDecoder( Integer.MAX_VALUE, 0, 4, 0, 4 ) );
pipeline.addLast( new LengthFieldPrepender( 4 ) );
pipeline.addLast( new TxPullRequestEncoder() );
pipeline.addLast( new GetStoreRequestEncoder() );
pipeline.addLast( new ResponseMessageTypeEncoder() );
pipeline.addLast( new RequestMessageTypeEncoder() );
pipeline.addLast( new ClientMessageTypeHandler( protocol, logProvider ) );
pipeline.addLast( new TxPullResponseDecoder( protocol ) );
pipeline.addLast( new TxPullResponseHandler( protocol, owner ) );
pipeline.addLast( new StoreCopyFinishedResponseDecoder( protocol ) );
pipeline.addLast( new StoreCopyFinishedResponseHandler( protocol, owner ) );
pipeline.addLast( new TxStreamFinishedResponseDecoder( protocol ) );
pipeline.addLast( new TxStreamFinishedResponseHandler( protocol, owner ) );
// keep these after type-specific handlers since they process ByteBufs
pipeline.addLast( new FileHeaderDecoder( protocol ) );
pipeline.addLast( new FileHeaderHandler( protocol, logProvider ) );
pipeline.addLast( new FileContentHandler( protocol, owner ) );
pipeline.addLast( new IdleStateHandler( 0, 0, 2, TimeUnit.MINUTES) );
pipeline.addLast( new IdleChannelReaperHandler( nonBlockingChannels ) );
pipeline.addLast( new ExceptionLoggingHandler( logProvider.getLog( getClass() ) ) );
}
}
}