| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.mina.util; |
| |
| /** |
| * Monitors uncaught exceptions. {@link #exceptionCaught(Throwable)} is |
| * invoked when there are any uncaught exceptions. |
| * <p> |
| * You can monitor any uncaught exceptions by setting {@link ExceptionMonitor} |
| * by calling {@link #setInstance(ExceptionMonitor)}. The default |
| * monitor logs all caught exceptions in {@code WARN} level using |
| * SLF4J. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| * |
| * @see DefaultExceptionMonitor |
| */ |
| public abstract class ExceptionMonitor { |
| private static ExceptionMonitor instance = new DefaultExceptionMonitor(); |
| |
| /** |
| * @return the current exception monitor. |
| */ |
| public static ExceptionMonitor getInstance() { |
| return instance; |
| } |
| |
| /** |
| * Sets the uncaught exception monitor. If <code>null</code> is specified, |
| * the default monitor will be set. |
| * |
| * @param monitor A new instance of {@link DefaultExceptionMonitor} is set |
| * if {@code null} is specified. |
| */ |
| public static void setInstance(ExceptionMonitor monitor) { |
| if (monitor == null) { |
| instance = new DefaultExceptionMonitor(); |
| } else { |
| instance = monitor; |
| } |
| } |
| |
| /** |
| * Invoked when there are any uncaught exceptions. |
| * |
| * @param cause The caught exception |
| */ |
| public abstract void exceptionCaught(Throwable cause); |
| } |