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Reactive Streams Netty driver

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/*
 * Copyright (c) 2011-2018 Pivotal Software Inc, All Rights Reserved.
 *
 * 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 reactor.ipc.netty.channel;

import java.io.IOException;

/**
 * An exception marking prematurely or unexpectedly closed inbound
 *
 * @author Stephane Maldini
 * @since 0.6
 */
public class AbortedException extends RuntimeException {

	final boolean nostack;

	/**
	 * Simple connection abort exception without stack
	 */
	public AbortedException() {
		super("Connection reset by peer");
		nostack = true;
	}

	public AbortedException(String message) {
		super(message);
		nostack = false;
	}

	@Override
	public synchronized Throwable fillInStackTrace() {
		return nostack ? this : super.fillInStackTrace();
	}



	/**
	 * Return true if connection has been simply aborted on a tcp level by verifying if
	 * the given inbound error.
	 *
	 * @param err an inbound exception
	 *
	 * @return true if connection has been simply aborted on a tcp level
	 */
	public static boolean isConnectionReset(Throwable err) {
		return err.getClass()
		          .equals(AbortedException.class) || (err instanceof IOException && (err.getMessage() == null || err.getMessage()
		                                                                                                            .contains("Broken pipe") || err.getMessage()
		                                                                                                                                           .contains(
				                                                                                                                                           "Connection reset by peer")));
	}
}