net.logstash.logback.appender.listener.TcpAppenderListener Maven / Gradle / Ivy
/*
* Copyright 2013-2022 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 net.logstash.logback.appender.listener;
import java.net.InetSocketAddress;
import java.net.Socket;
import ch.qos.logback.core.Appender;
import ch.qos.logback.core.spi.DeferredProcessingAware;
/**
* Listens to a TCP appender.
*
* Methods will be invoked in the thread that is sending the events over the TCP connection.
* Therefore, ensure that the methods complete quickly, so that future events are not delayed.
*/
public interface TcpAppenderListener extends AppenderListener {
/**
* Called after given appender successfully sent the given event over the TCP connection.
*
* @param appender the appender that sent the event
* @param socket the socket over which the appender sent the event
* @param event the event that was sent
* @param durationInNanos the time (in nanoseconds) it took to send the event
*/
default void eventSent(Appender appender, Socket socket, Event event, long durationInNanos) {
}
/**
* Called when the given appender fails to send the given event over a TCP connection.
*
* @param appender the appender that attempted to send the event
* @param event the event that failed to send
* @param reason what caused the failure
*/
default void eventSendFailure(Appender appender, Event event, Throwable reason) {
}
/**
* Called after the given appender successfully opens the given socket
*
* @param appender the appender that opened the socket
* @param socket the socket that was opened
*/
default void connectionOpened(Appender appender, Socket socket) {
}
/**
* Called after the given appender fails to open a socket
*
* @param appender the appender that attempted to open a socket
* @param address the address to which the appender attempted to connect
* @param reason what caused the failure
*/
default void connectionFailed(Appender appender, InetSocketAddress address, Throwable reason) {
}
/**
* Called after the given appender closes the given socket
* (either due to a reconnect, or shutdown)
*
* @param appender the appender that closed the socket
* @param socket the socket that was closed
*/
default void connectionClosed(Appender appender, Socket socket) {
}
}