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Tomcat85 Slf4j Logback Integration
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package org.apache.juli.logging.ch.qos.logback.core.net;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import javax.net.SocketFactory;
import org.apache.juli.logging.ch.qos.logback.core.util.DelayStrategy;
import org.apache.juli.logging.ch.qos.logback.core.util.FixedDelay;
/**
* Default implementation of {@link SocketConnector}.
*
* @author Carl Harris
* @since 1.0.12
*/
public class DefaultSocketConnector implements SocketConnector {
private final InetAddress address;
private final int port;
private final DelayStrategy delayStrategy;
private ExceptionHandler exceptionHandler;
private SocketFactory socketFactory;
/**
* Constructs a new connector.
*
* @param address address of remote listener
* @param port port of remote listener
* @param initialDelay delay before initial connection attempt
* @param retryDelay delay after failed connection attempt
*/
public DefaultSocketConnector(InetAddress address, int port, long initialDelay, long retryDelay) {
this(address, port, new FixedDelay(initialDelay, retryDelay));
}
/**
* Constructs a new connector.
*
* @param address address of remote listener
* @param port port of remote listener
* @param delayStrategy strategy for choosing the delay to impose before each
* connection attempt
*/
public DefaultSocketConnector(InetAddress address, int port, DelayStrategy delayStrategy) {
this.address = address;
this.port = port;
this.delayStrategy = delayStrategy;
}
/**
* Loops until the desired connection is established and returns the resulting
* connector.
*/
public Socket call() throws InterruptedException {
useDefaultsForMissingFields();
Socket socket = createSocket();
while (socket == null && !Thread.currentThread().isInterrupted()) {
Thread.sleep(delayStrategy.nextDelay());
socket = createSocket();
}
return socket;
}
private Socket createSocket() {
Socket newSocket = null;
try {
newSocket = socketFactory.createSocket(address, port);
} catch (IOException ioex) {
exceptionHandler.connectionFailed(this, ioex);
}
return newSocket;
}
private void useDefaultsForMissingFields() {
if (exceptionHandler == null) {
exceptionHandler = new ConsoleExceptionHandler();
}
if (socketFactory == null) {
socketFactory = SocketFactory.getDefault();
}
}
/**
* {@inheritDoc}
*/
public void setExceptionHandler(ExceptionHandler exceptionHandler) {
this.exceptionHandler = exceptionHandler;
}
/**
* {@inheritDoc}
*/
public void setSocketFactory(SocketFactory socketFactory) {
this.socketFactory = socketFactory;
}
/**
* A default {@link ExceptionHandler} that writes to {@code System.out}
*/
private static class ConsoleExceptionHandler implements ExceptionHandler {
public void connectionFailed(SocketConnector connector, Exception ex) {
System.out.println(ex);
}
}
}