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annotate graal/com.oracle.jvmci.options/src/com/oracle/jvmci/options/OptionUtils.java @ 21784:f4e1d958f1c3

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[AMD64] Create AMD64 specific address nodes.
author Roland Schatz <roland.schatz@oracle.com>
date Mon, 08 Jun 2015 19:19:45 +0200
parents 47bebae7454f
children
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.jvmci.options;
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24
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25 import java.util.*;
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26
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27 public class OptionUtils {
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28
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29 public interface OptionConsumer {
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30 void set(OptionDescriptor desc, Object value);
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31 }
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32
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33 /**
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34 * Parses a given option value specification.
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35 *
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36 * @param option the specification of an option and its value
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37 * @param setter the object to notify of the parsed option and value.
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38 */
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39 public static void parseOption(String option, OptionConsumer setter) {
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40 SortedMap<String, OptionDescriptor> options = OptionsLoader.options;
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41 Objects.requireNonNull(setter);
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42 if (option.length() == 0) {
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43 return;
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44 }
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45
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46 Object value = null;
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47 String optionName = null;
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48 String valueString = null;
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49
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50 char first = option.charAt(0);
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51 if (first == '+' || first == '-') {
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52 optionName = option.substring(1);
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53 value = (first == '+');
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54 } else {
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55 int index = option.indexOf('=');
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56 if (index == -1) {
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57 optionName = option;
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58 valueString = null;
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59 } else {
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60 optionName = option.substring(0, index);
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61 valueString = option.substring(index + 1);
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62 }
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63 }
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64
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65 OptionDescriptor desc = options.get(optionName);
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66 if (desc == null) {
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67 throw new IllegalArgumentException("Option '" + optionName + "' not found");
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68 }
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69
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70 Class<?> optionType = desc.getType();
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71
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72 if (value == null) {
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73 if (optionType == Boolean.TYPE || optionType == Boolean.class) {
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74 throw new IllegalArgumentException("Boolean option '" + optionName + "' must use +/- prefix");
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75 }
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76
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77 if (valueString == null) {
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78 throw new IllegalArgumentException("Missing value for non-boolean option '" + optionName + "' must use " + optionName + "=<value> format");
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79 }
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80
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81 if (optionType == Float.class) {
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82 value = Float.parseFloat(valueString);
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83 } else if (optionType == Double.class) {
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84 value = Double.parseDouble(valueString);
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85 } else if (optionType == Integer.class) {
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86 value = Integer.valueOf((int) parseLong(valueString));
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87 } else if (optionType == Long.class) {
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88 value = Long.valueOf(parseLong(valueString));
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89 } else if (optionType == String.class) {
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90 value = valueString;
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91 } else {
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92 throw new IllegalArgumentException("Wrong value for option '" + optionName + "'");
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93 }
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94 } else {
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95 if (optionType != Boolean.class) {
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96 throw new IllegalArgumentException("Non-boolean option '" + optionName + "' can not use +/- prefix. Use " + optionName + "=<value> format");
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97 }
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98 }
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99
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100 setter.set(desc, value);
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101 }
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102
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103 private static long parseLong(String v) {
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104 String valueString = v.toLowerCase();
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105 long scale = 1;
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106 if (valueString.endsWith("k")) {
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107 scale = 1024L;
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108 } else if (valueString.endsWith("m")) {
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109 scale = 1024L * 1024L;
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110 } else if (valueString.endsWith("g")) {
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111 scale = 1024L * 1024L * 1024L;
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112 } else if (valueString.endsWith("t")) {
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113 scale = 1024L * 1024L * 1024L * 1024L;
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114 }
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115
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116 if (scale != 1) {
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117 /* Remove trailing scale character. */
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118 valueString = valueString.substring(0, valueString.length() - 1);
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119 }
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120
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121 return Long.parseLong(valueString) * scale;
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122 }
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123
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124 /**
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125 * Wraps some given text to one or more lines of a given maximum width.
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126 *
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127 * @param text text to wrap
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128 * @param width maximum width of an output line, exception for words in {@code text} longer than
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129 * this value
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130 * @return {@code text} broken into lines
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131 */
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132 private static List<String> wrap(String text, int width) {
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133 List<String> lines = Collections.singletonList(text);
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134 if (text.length() > width) {
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135 String[] chunks = text.split("\\s+");
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136 lines = new ArrayList<>();
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137 StringBuilder line = new StringBuilder();
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Christian Wimmer <christian.wimmer@oracle.com>
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138 for (String chunk : chunks) {
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Christian Wimmer <christian.wimmer@oracle.com>
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139 if (line.length() + chunk.length() > width) {
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Christian Wimmer <christian.wimmer@oracle.com>
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140 lines.add(line.toString());
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Christian Wimmer <christian.wimmer@oracle.com>
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141 line.setLength(0);
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142 }
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Christian Wimmer <christian.wimmer@oracle.com>
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143 if (line.length() != 0) {
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Christian Wimmer <christian.wimmer@oracle.com>
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144 line.append(' ');
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Christian Wimmer <christian.wimmer@oracle.com>
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145 }
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Christian Wimmer <christian.wimmer@oracle.com>
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146 String[] embeddedLines = chunk.split("%n", -2);
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Christian Wimmer <christian.wimmer@oracle.com>
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147 if (embeddedLines.length == 1) {
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Christian Wimmer <christian.wimmer@oracle.com>
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148 line.append(chunk);
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Christian Wimmer <christian.wimmer@oracle.com>
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149 } else {
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Christian Wimmer <christian.wimmer@oracle.com>
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150 for (int i = 0; i < embeddedLines.length; i++) {
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Christian Wimmer <christian.wimmer@oracle.com>
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151 line.append(embeddedLines[i]);
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Christian Wimmer <christian.wimmer@oracle.com>
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152 if (i < embeddedLines.length - 1) {
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Christian Wimmer <christian.wimmer@oracle.com>
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153 lines.add(line.toString());
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Christian Wimmer <christian.wimmer@oracle.com>
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154 line.setLength(0);
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Christian Wimmer <christian.wimmer@oracle.com>
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155 }
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Christian Wimmer <christian.wimmer@oracle.com>
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156 }
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Christian Wimmer <christian.wimmer@oracle.com>
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157 }
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Christian Wimmer <christian.wimmer@oracle.com>
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158 }
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Christian Wimmer <christian.wimmer@oracle.com>
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159 if (line.length() != 0) {
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Christian Wimmer <christian.wimmer@oracle.com>
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160 lines.add(line.toString());
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Christian Wimmer <christian.wimmer@oracle.com>
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161 }
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Christian Wimmer <christian.wimmer@oracle.com>
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162 }
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Christian Wimmer <christian.wimmer@oracle.com>
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163 return lines;
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Christian Wimmer <christian.wimmer@oracle.com>
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164 }
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Christian Wimmer <christian.wimmer@oracle.com>
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165
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Christian Wimmer <christian.wimmer@oracle.com>
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166 public static void printFlags(SortedMap<String, OptionDescriptor> options, String prefix) {
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Christian Wimmer <christian.wimmer@oracle.com>
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167 System.out.println("[List of " + prefix + " options]");
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Christian Wimmer <christian.wimmer@oracle.com>
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168 SortedMap<String, OptionDescriptor> sortedOptions = options;
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
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169 for (Map.Entry<String, OptionDescriptor> e : sortedOptions.entrySet()) {
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Christian Wimmer <christian.wimmer@oracle.com>
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170 e.getKey();
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Christian Wimmer <christian.wimmer@oracle.com>
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171 OptionDescriptor desc = e.getValue();
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Christian Wimmer <christian.wimmer@oracle.com>
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172 Object value = desc.getOptionValue().getValue();
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Christian Wimmer <christian.wimmer@oracle.com>
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173 List<String> helpLines = wrap(desc.getHelp(), 70);
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Christian Wimmer <christian.wimmer@oracle.com>
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174 System.out.println(String.format("%9s %-40s = %-14s %s", desc.getType().getSimpleName(), e.getKey(), value, helpLines.get(0)));
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
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175 for (int i = 1; i < helpLines.size(); i++) {
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
176 System.out.println(String.format("%67s %s", " ", helpLines.get(i)));
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Christian Wimmer <christian.wimmer@oracle.com>
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177 }
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Christian Wimmer <christian.wimmer@oracle.com>
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178 }
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
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179
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Christian Wimmer <christian.wimmer@oracle.com>
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180 System.exit(0);
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Christian Wimmer <christian.wimmer@oracle.com>
parents:
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181 }
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Christian Wimmer <christian.wimmer@oracle.com>
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182 }