Mercurial > hg > graal-jvmci-8
view src/share/tools/ProjectCreator/ArgsParser.java @ 10405:f2110083203d
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author | sla |
---|---|
date | Mon, 10 Jun 2013 11:30:51 +0200 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ class ArgIterator { String[] args; int i; ArgIterator(String[] args) { this.args = args; this.i = 0; } String get() { return args[i]; } boolean hasMore() { return args != null && i < args.length; } boolean next() { return ++i < args.length; } } abstract class ArgHandler { public abstract void handle(ArgIterator it); } class ArgRule { String arg; ArgHandler handler; ArgRule(String arg, ArgHandler handler) { this.arg = arg; this.handler = handler; } boolean process(ArgIterator it) { if (match(it.get(), arg)) { handler.handle(it); return true; } return false; } boolean match(String rule_pattern, String arg) { return arg.equals(rule_pattern); } } class ArgsParser { ArgsParser(String[] args, ArgRule[] rules, ArgHandler defaulter) { ArgIterator ai = new ArgIterator(args); while (ai.hasMore()) { boolean processed = false; for (int i=0; i<rules.length; i++) { processed |= rules[i].process(ai); if (processed) { break; } } if (!processed) { if (defaulter != null) { defaulter.handle(ai); } else { System.err.println("ERROR: unparsed \""+ai.get()+"\""); ai.next(); } } } } }