| /* |
| * Copyright (c) 2003, 2018, 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. |
| */ |
| |
| package nsk.share.jvmti; |
| |
| import nsk.share.*; |
| |
| import java.io.*; |
| import java.util.*; |
| |
| /** |
| * Parser for JVMTI test's specific command-line arguments. |
| * <p> |
| * <code>ArgumentHandler</code> handles JVMTI test's specific arguments |
| * in addition to general arguments recognized by <code>ArgumentParser</code>. |
| * In addition to arguments obtained from command line, it also obtains options |
| * form agent option string. These options are added to the options list |
| * and can be found using <i>FindOption*Value()</i> methods. |
| * <p> |
| * Currently no specific options are recognized by <code>AgrumentHandler</code>. |
| * <p> |
| * See description of <code>ArgumentParser</code> to know which general options |
| * are recognized and how to get them. |
| * |
| * @see ArgumentParser |
| * |
| * @see #findOptionValue(String) |
| * @see #findOptionStringValue(String,String) |
| * @see #findOptionIntValue(String,int) |
| */ |
| public class ArgumentHandler extends ArgumentParser { |
| |
| /** |
| * Keep a copy of raw command-line arguments and parse them; |
| * but throw an exception on parsing error; and also add options |
| * obtained from agent options string. |
| * |
| * @param args Array of the raw command-line arguments. |
| * |
| * @throws NullPointerException If <code>args==null</code>. |
| * @throws IllegalArgumentException If Binder or Log options |
| * are set incorrectly. |
| * |
| * @see #setRawArguments(String[]) |
| */ |
| public ArgumentHandler(String args[]) { |
| super(args); |
| String agentOptions = getAgentOptionsString(); |
| if (agentOptions == null) { |
| throw new Failure("No agent options obtained from agent library"); |
| } |
| parseOptionString(agentOptions); |
| } |
| |
| /** |
| * Return value of given option if specified; or <i>null</i> otherwise. |
| */ |
| public String findOptionValue(String name) { |
| String value = options.getProperty(name); |
| return value; |
| } |
| |
| /** |
| * Return string value of given option if specified; or <i>defaultValue</i> otherwise. |
| * |
| * @throws BadOption if option is specified but has empty value. |
| */ |
| public String findOptionStringValue(String name, String defaultValue) { |
| String value = options.getProperty(name); |
| if (value == null) { |
| return defaultValue; |
| } |
| |
| if (value.length() <= 0) { |
| throw new BadOption("Empty value of option: " + name + "=" + value); |
| } |
| return value; |
| } |
| |
| /** |
| * Return integer value of given option if specified; or <i>defaultValue</i> otherwise. |
| * |
| * @throws BadOption if option is specified but has not integer value. |
| */ |
| public int findOptionIntValue(String name, int defaultValue) { |
| String value = options.getProperty(name); |
| if (value == null) { |
| return defaultValue; |
| } |
| |
| try { |
| return Integer.parseInt(value); |
| } catch (NumberFormatException e) { |
| throw new BadOption("Not integer value of option: " + name + "=" + value); |
| } |
| } |
| |
| /** |
| * Check if an option is admissible and has proper value. |
| * This method is invoked by <code>parseArguments()</code>. |
| * |
| * @param option option name |
| * @param value string representation of value (could be an empty string); |
| * or null if this option has no value |
| * @return <i>true</i> if option is admissible and has proper value; |
| * <i>false</i> if otion is not admissible |
| * |
| * @throws <i>BadOption</i> if admissible option has illegal value |
| * |
| * @see #parseArguments() |
| */ |
| protected boolean checkOption(String option, String value) { |
| return super.checkOption(option, value); |
| } |
| |
| /** |
| * Check consistence of all options. |
| * This method is invoked by <code>parseArguments()</code>. |
| * |
| * @see #parseArguments() |
| */ |
| protected void checkOptions() { |
| super.checkOptions(); |
| } |
| |
| /** |
| * Parse options string and add all recognized options and their values. |
| * If optionString is <i>null</i> this method just does nothing. |
| * |
| * @throws BadOption if known option has illegel value |
| * or all options are inconsistent |
| */ |
| protected void parseOptionString(String optionString) { |
| if (optionString == null) |
| return; |
| |
| StringTokenizer st = new StringTokenizer(optionString); |
| while (st.hasMoreTokens()) { |
| String token = st.nextToken(); |
| int start = token.startsWith("-")? 1 : 0; |
| String name, value; |
| int k = token.indexOf('='); |
| if (k < 0) { |
| name = token.substring(start); |
| value = ""; |
| } else { |
| name = token.substring(start, k); |
| value = token.substring(k + 1); |
| } |
| if (name.length() <= 0) { |
| throw new BadOption("Empty option found: " + token); |
| } |
| checkOption(name, value); |
| options.setProperty(name, value); |
| } |
| checkOptions(); |
| } |
| |
| /** |
| * Obtain agent options string form agent native library. |
| */ |
| private native String getAgentOptionsString(); |
| } |