Mercurial > hg > monetdb-java

annotate src/main/java/org/monetdb/util/CmdLineOpts.java @ 852:d9a45743536d monetdbs

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Merge 'default' into 'monetdbs'
author Joeri van Ruth <joeri.van.ruth@monetdbsolutions.com>
date Fri, 05 Jan 2024 12:45:48 +0100 (16 months ago)
parents f2689a3e9a95 e890195256ac
children d416e9b6b3d0
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1 /*
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2 * SPDX-License-Identifier: MPL-2.0
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3 *
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4 * This Source Code Form is subject to the terms of the Mozilla Public
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5 * License, v. 2.0. If a copy of the MPL was not distributed with this
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6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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7 *
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8 * Copyright 2024 MonetDB Foundation;
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9 * Copyright August 2008 - 2023 MonetDB B.V.;
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10 * Copyright 1997 - July 2008 CWI.
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11 */
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12
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13 package org.monetdb.util;
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14
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15 import java.util.ArrayList;
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16 import java.util.HashMap;
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17 import java.util.HashSet;
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18 import java.util.Properties;
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19
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20 public final class CmdLineOpts {
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21 /** the arguments we handle */
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22 private HashMap<String, OptionContainer> opts = new HashMap<String, OptionContainer>();
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23 private final HashSet<String> ignoredInFile = new HashSet<>();
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24 /** the options themself */
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25 private ArrayList<OptionContainer> options = new ArrayList<OptionContainer>();
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26
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27 /** no arguments */
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28 public static final int CAR_ZERO = 0;
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29 /** always one argument */
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30 public static final int CAR_ONE = 1;
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31 /** zero or one argument */
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32 public static final int CAR_ZERO_ONE = 2;
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33 /** zero or many arguments */
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34 public static final int CAR_ZERO_MANY = 3;
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35 /** one or many arguments */
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36 public static final int CAR_ONE_MANY = 4;
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37
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38 public CmdLineOpts() {
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39 }
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40
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41 public void addOption(
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42 final String shorta,
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43 final String longa,
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44 final int type,
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45 final String defaulta,
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46 final String descriptiona)
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47 throws OptionsException {
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48 final OptionContainer oc =
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49 new OptionContainer(
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50 shorta,
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51 longa,
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52 type,
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53 defaulta,
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54 descriptiona
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55 );
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56 if (shorta != null)
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57 opts.put(shorta, oc);
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58 if (longa != null)
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59 opts.put(longa, oc);
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60 }
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61
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62 public void addIgnored(String name) {
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63 ignoredInFile.add(name);
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64 }
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65
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66 public void removeOption(final String name) {
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67 final OptionContainer oc = opts.get(name);
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68 if (oc != null) {
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69 opts.remove(oc.shorta);
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70 opts.remove(oc.longa);
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71 }
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72 }
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74 public OptionContainer getOption(final String key) throws OptionsException {
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75 final OptionContainer ret = opts.get(key);
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76 if (ret == null)
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77 throw new OptionsException("No such option: " + key);
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78
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79 return ret;
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80 }
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81
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82 public void processFile(final java.io.File file) throws OptionsException {
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83 // the file is there, parse it and set its settings
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84 final Properties prop = new Properties();
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85 try {
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86 final java.io.FileInputStream in = new java.io.FileInputStream(file);
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87 try {
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88 prop.load(in);
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89 } finally {
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90 in.close();
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91 }
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92
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93 String key;
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94 OptionContainer option = null;
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95 for (java.util.Enumeration<?> e = prop.propertyNames(); e.hasMoreElements(); ) {
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96 key = (String) e.nextElement();
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97 option = opts.get(key);
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98 if (option != null) {
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99 option.resetArguments();
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100 option.addArgument(prop.getProperty(key));
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101 } else if (!ignoredInFile.contains(key)) {
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102 // ignore unknown options (it used to throw an OptionsException)
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103 System.out.println("Info: Ignoring unknown/unsupported option (in " + file.getAbsolutePath() + "): " + key);
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104 }
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105 }
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106 } catch (java.io.IOException e) {
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107 throw new OptionsException("File IO Exception: " + e);
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108 }
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109 }
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110
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111 public void processArgs(final String args[]) throws OptionsException {
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112 // parse and set the command line arguments
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113 OptionContainer option = null;
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114 int quant = -1;
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115 int qcount = 0;
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116 boolean moreData = false;
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117 for (int i = 0; i < args.length; i++) {
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118 if (option == null) {
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119 if (args[i].charAt(0) != '-')
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120 throw new OptionsException("Unexpected value: " + args[i]);
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121
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122 // see what kind of argument we have
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123 if (args[i].length() == 1)
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124 throw new OptionsException("Illegal argument: '-'");
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125
0
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126 if (args[i].charAt(1) == '-') {
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127 // we have a long argument
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128 // since we don't accept inline values we can take
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129 // everything left in the string as argument, unless
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130 // there is a = in there...
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131 final String tmp = args[i].substring(2);
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132 final int pos = tmp.indexOf('=');
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133 if (pos == -1) {
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134 option = opts.get(tmp);
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135 moreData = false;
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136 } else {
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137 option = opts.get(tmp.substring(0, pos));
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138 // modify the option a bit so the code below
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139 // handles the moreData correctly
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140 args[i] = "-?" + tmp.substring(pos + 1);
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141 moreData = true;
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142 }
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143 } else if (args[i].charAt(1) == 'X') {
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144 // extra argument, same as long argument
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145 final String tmp = args[i].substring(1);
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146 final int pos = tmp.indexOf('=');
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147 if (pos == -1) {
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148 option = opts.get(tmp);
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149 moreData = false;
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150 } else {
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151 option = opts.get(tmp.substring(0, pos));
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152 // modify the option a bit so the code below
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153 // handles the moreData correctly
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154 args[i] = "-?" + tmp.substring(pos + 1);
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155 moreData = true;
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156 }
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157 } else {
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158 // single char argument
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159 option = opts.get("" + args[i].charAt(1));
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160 // is there more data left in the argument?
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161 moreData = args[i].length() > 2 ? true : false;
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162 }
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163
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164 if (option != null) {
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165 // make sure we overwrite previously set arguments
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166 option.resetArguments();
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167 final int card = option.getCardinality();
0
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168 if (card == CAR_ONE) {
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169 if (moreData) {
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170 option.addArgument(args[i].substring(2));
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171 option = null;
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172 } else {
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173 quant = 1;
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174 }
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175 } else if (card == CAR_ZERO_ONE) {
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176 option.setPresent();
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177 qcount = 1;
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178 quant = 2;
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179 if (moreData) {
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180 option.addArgument(args[i].substring(2));
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181 option = null;
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182 }
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183 } else if (card == CAR_ZERO_MANY) {
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184 option.setPresent();
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185 qcount = 1;
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186 quant = -1;
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187 if (moreData) {
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188 option.addArgument(args[i].substring(2));
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189 qcount++;
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190 }
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191 } else if (card == CAR_ZERO) {
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192 option.setPresent();
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193 option = null;
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194 }
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195 } else {
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196 throw new OptionsException("Unknown argument: " + args[i]);
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197 }
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198 } else {
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199 // store the `value'
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200 option.addArgument(args[i]);
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201 if (++qcount == quant) {
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202 quant = 0;
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203 qcount = 0;
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204 option = null;
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205 }
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206 }
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207 }
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208 }
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209
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210 /**
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211 * Returns a help message for all options loaded.
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212 *
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213 * @return the help message
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214 */
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215 public String produceHelpMessage() {
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216 // first calculate how much space is necessary for the options
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217 int maxlen = 0;
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218 for (OptionContainer oc : options) {
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219 final String shorta = oc.getShort();
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220 final String longa = oc.getLong();
0
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221 int len = 0;
309
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222 if (shorta != null)
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223 len += shorta.length() + 1 + 1;
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224 if (longa != null)
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225 len += longa.length() + 1 + (longa.charAt(0) == 'X' ? 0 : 1) + 1;
0
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226 // yes, we don't care about branch mispredictions here ;)
309
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227 if (maxlen < len)
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228 maxlen = len;
0
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229 }
70
17fbaf2635bb Expand import java.*.* statements
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230
0
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231 // get the individual strings
309
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232 final StringBuilder ret = new StringBuilder();
0
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233 for (OptionContainer oc : options) {
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234 ret.append(produceHelpMessage(oc, maxlen));
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235 }
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236
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237 return ret.toString();
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238 }
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239
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240 /**
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241 * Returns the help message for the given OptionContainer. The
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242 * command line flags will be padded to optwidth spaces to allow for
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243 * aligning. The description of the flags will be wrapped at 80
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244 * characters.
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245 *
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246 * @param oc the OptionContainer
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247 * @param indentwidth padding width for the command line flags
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248 * @return the help message for the option
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249 */
309
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diff changeset
250 public String produceHelpMessage(final OptionContainer oc, int indentwidth) {
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diff changeset
251 final String desc = oc.getDescription();
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diff changeset
252 if (desc == null)
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diff changeset
253 return "";
0
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254
309
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diff changeset
255 final String shorta = oc.getShort();
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diff changeset
256 final String longa = oc.getLong();
0
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257 int optwidth = 0;
309
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258 if (shorta != null)
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259 optwidth += shorta.length() + 1 + 1;
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260 if (longa != null)
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261 optwidth += longa.length() + 1 + (longa.charAt(0) == 'X' ? 0 : 1) + 1;
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262 final int descwidth = 80 - indentwidth;
0
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263
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264 // default to with of command line flags if no width given
309
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diff changeset
265 if (indentwidth <= 0)
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diff changeset
266 indentwidth = optwidth;
0
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267
309
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268 final StringBuilder ret = new StringBuilder();
0
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269
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270 // add the command line flags
309
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271 if (shorta != null)
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272 ret.append('-').append(shorta).append(' ');
0
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273 if (longa != null) {
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274 ret.append('-');
309
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275 if (longa.charAt(0) != 'X')
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276 ret.append('-');
0
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277 ret.append(longa).append(' ');
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278 }
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279
309
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280 for (int i = optwidth; i < indentwidth; i++)
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281 ret.append(' ');
0
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282 // add the description, wrap around words
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283 int pos = 0, lastpos = 0;
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284 while (pos < desc.length()) {
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285 pos += descwidth;
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286 if (lastpos != 0) {
309
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287 for (int i = 0; i < indentwidth; i++)
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288 ret.append(' ');
0
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289 }
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290 if (pos >= desc.length()) {
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291 ret.append(desc.substring(lastpos)).append('\n');
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292 break;
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293 }
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294 int space;
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295 for (space = pos; desc.charAt(space) != ' '; space--) {
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296 if (space == 0) {
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297 space = pos;
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298 break;
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299 }
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300 }
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301 pos = space;
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302 ret.append(desc.substring(lastpos, pos)).append('\n');
309
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303 while (desc.charAt(pos) == ' ')
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diff changeset
304 pos++;
0
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305 lastpos = pos;
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306 }
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307
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308 return ret.toString();
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309 }
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310
309
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311 public final class OptionContainer {
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312 private final int cardinality;
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313 private final String shorta;
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314 private final String longa;
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315 private final ArrayList<String> values = new ArrayList<String>();
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316 private final String name;
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317 private final String defaulta;
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318 private final String descriptiona;
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319 private boolean present;
0
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320
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321 public OptionContainer(
309
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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322 final String shorta,
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diff changeset
323 final String longa,
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324 final int cardinality,
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diff changeset
325 final String defaulta,
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diff changeset
326 final String descriptiona)
0
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diff changeset
327 throws IllegalArgumentException
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328 {
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329 this.cardinality = cardinality;
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330 this.shorta = shorta;
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331 this.longa = longa;
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332 this.defaulta = defaulta;
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333 this.descriptiona = descriptiona;
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334 this.present = false;
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335
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336 if (cardinality != CAR_ZERO &&
309
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diff changeset
337 cardinality != CAR_ONE &&
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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diff changeset
338 cardinality != CAR_ZERO_ONE &&
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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339 cardinality != CAR_ZERO_MANY &&
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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diff changeset
340 cardinality != CAR_ONE_MANY)
0
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341 throw new IllegalArgumentException("unknown cardinality");
309
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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diff changeset
342 if (shorta != null && shorta.length() != 1)
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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parents: 261
diff changeset
343 throw new IllegalArgumentException("short option should consist of exactly one character");
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parents: 261
diff changeset
344 if (shorta == null && longa == null)
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Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
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diff changeset
345 throw new IllegalArgumentException("either a short or long argument should be given");
0
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346 if ((cardinality == CAR_ZERO ||
309
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347 cardinality == CAR_ZERO_ONE ||
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diff changeset
348 cardinality == CAR_ZERO_MANY) &&
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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diff changeset
349 defaulta != null) {
0
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diff changeset
350 throw new IllegalArgumentException("cannot specify a default for a (possible) zero argument option");
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351 }
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352
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353 name = (longa != null) ? longa : shorta;
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diff changeset
354 options.add(this);
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parents:
diff changeset
355 }
a5a898f6886c Copy of MonetDB java directory changeset e6e32756ad31.
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diff changeset
356
309
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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diff changeset
357 public final void resetArguments() {
0
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diff changeset
358 values.clear();
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diff changeset
359 }
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diff changeset
360
309
8a96a4a13528 Add additional "final" keyword to classes, method arguments and local variables where possible.
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diff changeset
361 public void addArgument(final String val) throws OptionsException {
0
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362 if (cardinality == CAR_ZERO) {
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parents:
diff changeset
363 throw new OptionsException("option " + name + " does not allow arguments");
467
171144a26ba0 Do not dump table data of STREAM TABLEs. And other small improvements and optimisations.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 406
diff changeset
364 }
171144a26ba0 Do not dump table data of STREAM TABLEs. And other small improvements and optimisations.
Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
parents: 406
diff changeset
365 if ((cardinality == CAR_ONE || cardinality == CAR_ZERO_ONE) && values.size() >= 1) {
0
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366 throw new OptionsException("option " + name + " does at max allow only one argument");
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parents:
diff changeset
367 }
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Sjoerd Mullender <sjoerd@acm.org>
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diff changeset
368 // we can add it
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diff changeset
369 values.add(val);
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370 setPresent();
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parents:
diff changeset
371 }
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diff changeset
372
309
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373 public final void setPresent() {
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374 present = true;
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375 }
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376
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377 public final boolean isPresent() {
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378 return present;
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379 }
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380
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381 public final int getCardinality() {
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382 return cardinality;
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383 }
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384
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385 public final int getArgumentCount() {
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386 return values.size();
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387 }
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388
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389 public final String getArgument() {
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390 final String ret = getArgument(1);
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391 if (ret == null)
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392 return defaulta;
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393 return ret;
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394 }
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395
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396 public final String getArgument(final int index) {
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397 final String[] args = getArguments();
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398 if (index < 1 || index > args.length)
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399 return null;
0
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400 return args[index - 1];
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401 }
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402
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403 public final String[] getArguments() {
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404 return values.toArray(new String[values.size()]);
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405 }
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406
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407 public final String getShort() {
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408 return shorta;
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409 }
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410
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411 public final String getLong() {
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412 return longa;
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413 }
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414
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415 public final String getDescription() {
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416 return descriptiona;
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417 }
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418 }
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419 }