Added a simple DelegateLogging to directly pass netty's log into our logging system

While as netty use `{}` instead of `%s`, we cannot print their log message properly.
This PR did not address the conversion between two logging systems.

Author: Zhen

driver/src/main/java/org/neo4j/driver/internal/DriverFactory.java

@@ -20,6 +20,7 @@
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.util.concurrent.EventExecutorGroup;
+import io.netty.util.internal.logging.InternalLoggerFactory;
 
 import java.io.IOException;
 import java.net.URI;
@@ -36,6 +37,7 @@
 import org.neo4j.driver.internal.cluster.loadbalancing.LoadBalancer;
 import org.neo4j.driver.internal.cluster.loadbalancing.LoadBalancingStrategy;
 import org.neo4j.driver.internal.cluster.loadbalancing.RoundRobinLoadBalancingStrategy;
+import org.neo4j.driver.internal.logging.DelegateLogging;
 import org.neo4j.driver.internal.retry.ExponentialBackoffRetryLogic;
 import org.neo4j.driver.internal.retry.RetryLogic;
 import org.neo4j.driver.internal.retry.RetrySettings;
@@ -69,6 +71,7 @@ public final Driver newInstance( URI uri, AuthToken authToken, RoutingSettings r
         RoutingSettings newRoutingSettings = routingSettings.withRoutingContext( new RoutingContext( uri ) );
         SecurityPlan securityPlan = createSecurityPlan( address, config );
 
+        InternalLoggerFactory.setDefaultFactory( new DelegateLogging( config.logging() ) );
         Bootstrap bootstrap = createBootstrap();
         EventExecutorGroup eventExecutorGroup = bootstrap.config().group();
         RetryLogic retryLogic = createRetryLogic( retrySettings, eventExecutorGroup, config.logging() );

driver/src/main/java/org/neo4j/driver/internal/async/ChannelConnectorImpl.java

@@ -71,7 +71,7 @@ public ChannelConnectorImpl( ConnectionSettings connectionSettings, SecurityPlan
     public ChannelFuture connect( BoltServerAddress address, Bootstrap bootstrap )
     {
         bootstrap.option( ChannelOption.CONNECT_TIMEOUT_MILLIS, connectTimeoutMillis );
-        bootstrap.handler( new NettyChannelInitializer( address, securityPlan, clock ) );
+        bootstrap.handler( new NettyChannelInitializer( address, securityPlan, clock, logging ) );
 
         ChannelFuture channelConnected = bootstrap.connect( address.toSocketAddress() );
 

driver/src/main/java/org/neo4j/driver/internal/async/NettyChannelInitializer.java

@@ -29,23 +29,25 @@
 import org.neo4j.driver.internal.async.inbound.InboundMessageDispatcher;
 import org.neo4j.driver.internal.security.SecurityPlan;
 import org.neo4j.driver.internal.util.Clock;
+import org.neo4j.driver.v1.Logging;
 
 import static org.neo4j.driver.internal.async.ChannelAttributes.setCreationTimestamp;
 import static org.neo4j.driver.internal.async.ChannelAttributes.setMessageDispatcher;
 import static org.neo4j.driver.internal.async.ChannelAttributes.setServerAddress;
-import static org.neo4j.driver.internal.logging.DevNullLogging.DEV_NULL_LOGGING;
 
 public class NettyChannelInitializer extends ChannelInitializer<Channel>
 {
     private final BoltServerAddress address;
     private final SecurityPlan securityPlan;
     private final Clock clock;
+    private final Logging logging;
 
-    public NettyChannelInitializer( BoltServerAddress address, SecurityPlan securityPlan, Clock clock )
+    public NettyChannelInitializer( BoltServerAddress address, SecurityPlan securityPlan, Clock clock, Logging logging )
     {
         this.address = address;
         this.securityPlan = securityPlan;
         this.clock = clock;
+        this.logging = logging;
     }
 
     @Override
@@ -78,6 +80,6 @@ private void updateChannelAttributes( Channel channel )
     {
         setServerAddress( channel, address );
         setCreationTimestamp( channel, clock.millis() );
-        setMessageDispatcher( channel, new InboundMessageDispatcher( channel, DEV_NULL_LOGGING ) );
+        setMessageDispatcher( channel, new InboundMessageDispatcher( channel, logging ) );
     }
 }