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CheckOptionHandler.java
Package: Weka-3-2.rar [view]
Upload User: rhdiban
Upload Date: 2013-08-09
Package Size: 15085k
Code Size: 6k
Category:
Windows Develop
Development Platform:
Java
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * CheckOptionHandler.java
- * Copyright (C) 1999 Len Trigg
- *
- */
- package weka.core;
- import java.util.*;
- /**
- * Simple command line checking of classes that implement OptionHandler.<p>
- *
- * Usage: <p>
- * <code>
- * CheckOptionHandler -W optionHandlerClassName -- test options
- * </code> <p>
- *
- * Valid options are: <p>
- *
- * -W classname <br>
- * The name of a class implementing an OptionHandler. <p>
- *
- * Options after -- are used as user options in testing the
- * OptionHandler <p>
- *
- * @author Len Trigg (trigg@cs.waikato.ac.nz)
- * @version $Revision: 1.7 $
- */
- public class CheckOptionHandler {
- /**
- * Prints the given options to a string.
- *
- * @param options the options to be joined
- */
- public static String printOptions(String [] options) {
- if (options == null) {
- return("<null>");
- } else {
- return Utils.joinOptions(options);
- }
- }
- /**
- * Compares the two given sets of options.
- *
- * @param options1 the first set of options
- * @param options2 the second set of options
- * @exception Exception if the two sets of options differ
- */
- public static void compareOptions(String [] options1, String [] options2)
- throws Exception {
- if (options1 == null) {
- throw new Exception("first set of options is null!");
- }
- if (options2 == null) {
- throw new Exception("second set of options is null!");
- }
- if (options1.length != options2.length) {
- throw new Exception("problem found!n"
- + "First set: " + printOptions(options1) + 'n'
- + "Second set: " + printOptions(options2) + 'n'
- + "options differ in length");
- }
- for (int i = 0; i < options1.length; i++) {
- if (!options1[i].equals(options2[i])) {
- throw new Exception("problem found!n"
- + "tFirst set: " + printOptions(options1) + 'n'
- + "tSecond set: " + printOptions(options2) + 'n'
- + 't' + options1[i] + " != " + options2[i]);
- }
- }
- }
- /**
- * Runs some diagnostic tests on an optionhandler object. Output is
- * printed to System.out.
- *
- * @param oh the OptionHandler of interest
- * @param options an array of strings containing some test command
- * line options
- * @exception Exception if the option handler fails any of the tests.
- */
- public static void checkOptionHandler(OptionHandler oh, String []options)
- throws Exception {
- System.out.println("OptionHandler: " + oh.getClass().getName());
- System.out.println("ListOptions:");
- Enumeration enum = oh.listOptions();
- while (enum.hasMoreElements()) {
- Option option = (Option) enum.nextElement();
- System.out.println(option.synopsis());
- System.out.println(option.description());
- }
- // Get the default options and check that after
- // setting them the same gets returned
- String [] defaultOptions = oh.getOptions();
- System.out.print("Default options:");
- System.out.println(printOptions(defaultOptions));
- // Set some options, get them back, set them, and check
- // the returned ones are the same as returned initially
- System.out.print("User options:");
- System.out.println(printOptions(options));
- System.out.println("Setting user options...");
- oh.setOptions(options);
- System.out.print("Remaining options:");
- System.out.println(CheckOptionHandler.printOptions(options));
- System.out.print("Getting canonical user options:");
- String [] userOptions = oh.getOptions();
- System.out.println(CheckOptionHandler.printOptions(userOptions));
- System.out.println("Setting canonical user options...");
- oh.setOptions((String [])userOptions.clone());
- System.out.print("Checking canonical user options...");
- String [] userOptionsCheck = oh.getOptions();
- CheckOptionHandler.compareOptions(userOptions, userOptionsCheck);
- System.out.println("OK");
- System.out.println("Resetting to default options...");
- oh.setOptions((String [])defaultOptions.clone());
- System.out.print("Checking default options match previous default...");
- String [] defaultOptionsCheck = oh.getOptions();
- CheckOptionHandler.compareOptions(defaultOptions, defaultOptionsCheck);
- System.out.println("OK");
- }
- /**
- * Main method for using the CheckOptionHandler.<p>
- *
- * Valid options are: <p>
- *
- * -W classname <br>
- * The name of the class implementing an OptionHandler. <p>
- *
- * Options after -- are used as user options in testing the
- * OptionHandler <p>
- *
- * @param the options to the CheckOptionHandler
- */
- public static void main(String [] args) {
- try {
- String className = Utils.getOption('W', args);
- if (className.length() == 0) {
- throw new Exception("Please give a class name with -W option");
- }
- OptionHandler o;
- try {
- o = (OptionHandler)Class.forName(className).newInstance();
- } catch (Exception ex) {
- throw new Exception("Couldn't find OptionHandler with name "
- + className);
- }
- String [] options = Utils.partitionOptions(args);
- Utils.checkForRemainingOptions(args);
- CheckOptionHandler.checkOptionHandler(o, options);
- } catch (Exception ex) {
- System.err.println(ex.getMessage());
- }
- }
- }