SuppressIOException.java

/*
 * Copyright 2020 the original author or authors.
 *
 * 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 io.lettuce;

import io.lettuce.core.resource.ClientResources;
import io.lettuce.core.resource.NettyCustomizer;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

import java.io.IOException;

/**
 * @author Mark Paluch
 */
public class SuppressIOException extends ChannelInboundHandlerAdapter {

	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {

		if(cause instanceof IOException){
			// logging
			return;
		}

		// otherwise let the exception pass thru.
		super.exceptionCaught(ctx, cause);
	}

	public static void main(String[] args) {

		ClientResources clientResources = ClientResources.builder().nettyCustomizer(new NettyCustomizer() {
			@Override
			public void afterChannelInitialized(Channel channel) {

				channel.pipeline().addFirst(new SuppressIOException());
			}
		}).build();
	}

}