| /* |
| * 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.felix.dm.benchmark.scenario; |
| |
| import java.util.function.Consumer; |
| import java.util.function.Function; |
| |
| /** |
| * Helper functions used to work around the java.util.function.* functions, which don't support |
| * methods throwing a checked exception. |
| * |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class Unchecked { |
| /** |
| * Same functional interface as java.util.function.Consumer, except that the accept method may throw an exception. |
| */ |
| @FunctionalInterface |
| public static interface CheckedConsumer<T> { |
| public void accept(T t) throws Exception; |
| } |
| |
| /** |
| * Same interface as Runnable, except that the run method may throw an exception. |
| */ |
| @FunctionalInterface |
| public static interface CheckedRunnable { |
| public void run() throws Exception; |
| } |
| |
| /** |
| * Same interface as Function, except that the accept method may throw an exception. |
| */ |
| @FunctionalInterface |
| public static interface CheckedFunction<T,U> { |
| public U apply(T t) throws Exception; |
| } |
| |
| /** |
| * Wraps a Consumer whose accept method may throw an exception behind a regular java.util.function.Consumer |
| */ |
| public static <T> Consumer<T> consumer(CheckedConsumer<T> c) { |
| return (t) -> { |
| try { |
| c.accept(t); |
| } |
| catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| catch (Throwable err) { |
| throw err; |
| } |
| }; |
| } |
| |
| /** |
| * Wraps a Consumer whose accept method may throw an exception behind a regular java.util.function.Consumer |
| */ |
| public static <T,U> Function<T, U> func(CheckedFunction<T, U> f) { |
| return (t) -> { |
| try { |
| return f.apply(t); |
| } |
| catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| catch (Throwable err) { |
| throw err; |
| } |
| }; |
| } |
| |
| /** |
| * Runs a runnable which may throw an exception without having to catch it. |
| */ |
| public static void run(CheckedRunnable r) { |
| try { |
| r.run(); |
| } |
| catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| catch (Throwable err) { |
| throw err; |
| } |
| } |
| } |