Java tutorial
/** * Copyright 2016 Carnegie Mellon University * * 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 edu.cmu.sv.modelinference.common; import java.util.Collection; import java.util.Iterator; import java.util.Set; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; import edu.cmu.sv.modelinference.common.api.LogHandler; /** * @author Kasper Luckow * */ public class Util { public static String getSupportedHandlersString(Set<? extends LogHandler<?>> supportedHandlers) { StringBuilder sb = new StringBuilder(); Iterator<? extends LogHandler<?>> logIter = supportedHandlers.iterator(); while (logIter.hasNext()) { sb.append(logIter.next().getHandlerName()); if (logIter.hasNext()) sb.append(" | "); } return sb.toString(); } public static void printHelpAndExit(Class<?> clz, Options opts) { printHelpAndExit(clz, opts, -1); } public static void printHelpAndExit(Class<?> clz, Options opts, int exitVal) { HelpFormatter formatter = new HelpFormatter(); formatter.printHelp(clz.getName(), opts); System.exit(exitVal); } }