/* * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt). * * The MIT License * Copyright © 2014-2022 Ilkka Seppälä * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.iluwatar.mute; import java.io.ByteArrayOutputStream; import java.io.IOException; import lombok.extern.slf4j.Slf4j; /** * A utility class that allows you to utilize mute idiom. */ @Slf4j public final class Mute { // The constructor is never meant to be called. private Mute() { } /** * Executes the runnable and throws the exception occurred within a {@link * AssertionError}. This method should be utilized to mute the operations that are guaranteed not * to throw an exception. For instance {@link ByteArrayOutputStream#write(byte[])} declares in * its signature that it can throw an {@link IOException}, but in reality it cannot. This is * because the bulk write method is not overridden in {@link ByteArrayOutputStream}. * * @param runnable a runnable that should never throw an exception on execution. */ public static void mute(CheckedRunnable runnable) { try { runnable.run(); } catch (Exception e) { throw new AssertionError(e); } } /** * Executes the runnable and logs the exception occurred on {@link System#err}. This * method should be utilized to mute the operations about which most you can do is log. For * instance while closing a connection to database, or cleaning up a resource, all you can do is * log the exception occurred. * * @param runnable a runnable that may throw an exception on execution. */ public static void loggedMute(CheckedRunnable runnable) { try { runnable.run(); } catch (Exception e) { e.printStackTrace(); } } }