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1 /* |
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2 * Copyright (c) 1998, 2012, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.tools.doclets.internal.toolkit.util; |
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27 |
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28 import java.util.*; |
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29 |
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30 import com.sun.javadoc.*; |
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31 import com.sun.tools.doclets.internal.toolkit.*; |
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32 |
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33 /** |
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34 * Process and manage grouping of packages, as specified by "-group" option on |
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35 * the command line. |
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36 * <p> |
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37 * For example, if user has used -group option as |
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38 * -group "Core Packages" "java.*" -group "CORBA Packages" "org.omg.*", then |
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39 * the packages specified on the command line will be grouped according to their |
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40 * names starting with either "java." or "org.omg.". All the other packages |
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41 * which do not fall in the user given groups, are grouped in default group, |
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42 * named as either "Other Packages" or "Packages" depending upon if "-group" |
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43 * option used or not at all used respectively. |
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44 * </p> |
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45 * <p> |
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46 * Also the packages are grouped according to the longest possible match of |
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47 * their names with the grouping information provided. For example, if there |
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48 * are two groups, like -group "Lang" "java.lang" and -group "Core" "java.*", |
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49 * will put the package java.lang in the group "Lang" and not in group "Core". |
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50 * </p> |
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51 * |
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52 * <p><b>This is NOT part of any supported API. |
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53 * If you write code that depends on this, you do so at your own risk. |
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54 * This code and its internal interfaces are subject to change or |
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55 * deletion without notice.</b> |
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56 * |
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57 * @author Atul M Dambalkar |
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58 */ |
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59 public class Group { |
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60 |
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61 /** |
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62 * Map of regular expressions with the corresponding group name. |
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63 */ |
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64 private Map<String,String> regExpGroupMap = new HashMap<String,String>(); |
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65 |
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66 /** |
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67 * List of regular expressions sorted according to the length. Regular |
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68 * expression with longest length will be first in the sorted order. |
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69 */ |
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70 private List<String> sortedRegExpList = new ArrayList<String>(); |
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71 |
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72 /** |
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73 * List of group names in the same order as given on the command line. |
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74 */ |
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75 private List<String> groupList = new ArrayList<String>(); |
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76 |
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77 /** |
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78 * Map of non-regular expressions(possible package names) with the |
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79 * corresponding group name. |
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80 */ |
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81 private Map<String,String> pkgNameGroupMap = new HashMap<String,String>(); |
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82 |
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83 /** |
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84 * The global configuration information for this run. |
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85 */ |
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86 private final Configuration configuration; |
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87 |
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88 /** |
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89 * Since we need to sort the keys in the reverse order(longest key first), |
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90 * the compare method in the implementing class is doing the reverse |
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91 * comparison. |
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92 */ |
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93 private static class MapKeyComparator implements Comparator<String> { |
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94 public int compare(String key1, String key2) { |
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95 return key2.length() - key1.length(); |
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96 } |
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97 } |
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98 |
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99 public Group(Configuration configuration) { |
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100 this.configuration = configuration; |
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101 } |
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102 |
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103 /** |
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104 * Depending upon the format of the package name provided in the "-group" |
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105 * option, generate two separate maps. There will be a map for mapping |
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106 * regular expression(only meta character allowed is '*' and that is at the |
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107 * end of the regular expression) on to the group name. And another map |
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108 * for mapping (possible) package names(if the name format doesen't contain |
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109 * meta character '*', then it is assumed to be a package name) on to the |
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110 * group name. This will also sort all the regular expressions found in the |
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111 * reverse order of their lengths, i.e. longest regular expression will be |
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112 * first in the sorted list. |
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113 * |
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114 * @param groupname The name of the group from -group option. |
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115 * @param pkgNameFormList List of the package name formats. |
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116 */ |
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117 public boolean checkPackageGroups(String groupname, |
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118 String pkgNameFormList) { |
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119 StringTokenizer strtok = new StringTokenizer(pkgNameFormList, ":"); |
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120 if (groupList.contains(groupname)) { |
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121 configuration.message.warning("doclet.Groupname_already_used", groupname); |
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122 return false; |
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123 } |
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124 groupList.add(groupname); |
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125 while (strtok.hasMoreTokens()) { |
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126 String id = strtok.nextToken(); |
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127 if (id.length() == 0) { |
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128 configuration.message.warning("doclet.Error_in_packagelist", groupname, pkgNameFormList); |
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129 return false; |
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130 } |
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131 if (id.endsWith("*")) { |
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132 id = id.substring(0, id.length() - 1); |
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133 if (foundGroupFormat(regExpGroupMap, id)) { |
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134 return false; |
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135 } |
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136 regExpGroupMap.put(id, groupname); |
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137 sortedRegExpList.add(id); |
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138 } else { |
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139 if (foundGroupFormat(pkgNameGroupMap, id)) { |
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140 return false; |
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141 } |
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142 pkgNameGroupMap.put(id, groupname); |
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143 } |
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144 } |
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145 Collections.sort(sortedRegExpList, new MapKeyComparator()); |
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146 return true; |
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147 } |
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148 |
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149 /** |
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150 * Search if the given map has given the package format. |
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151 * |
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152 * @param map Map to be searched. |
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153 * @param pkgFormat The pacakge format to search. |
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154 * |
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155 * @return true if package name format found in the map, else false. |
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156 */ |
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157 boolean foundGroupFormat(Map<String,?> map, String pkgFormat) { |
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158 if (map.containsKey(pkgFormat)) { |
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159 configuration.message.error("doclet.Same_package_name_used", pkgFormat); |
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160 return true; |
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161 } |
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162 return false; |
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163 } |
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164 |
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165 /** |
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166 * Group the packages according the grouping information provided on the |
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167 * command line. Given a list of packages, search each package name in |
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168 * regular expression map as well as package name map to get the |
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169 * corresponding group name. Create another map with mapping of group name |
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170 * to the package list, which will fall under the specified group. If any |
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171 * package doesen't belong to any specified group on the comamnd line, then |
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172 * a new group named "Other Packages" will be created for it. If there are |
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173 * no groups found, in other words if "-group" option is not at all used, |
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174 * then all the packages will be grouped under group "Packages". |
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175 * |
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176 * @param packages Packages specified on the command line. |
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177 */ |
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178 public Map<String,List<PackageDoc>> groupPackages(PackageDoc[] packages) { |
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179 Map<String,List<PackageDoc>> groupPackageMap = new HashMap<String,List<PackageDoc>>(); |
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180 String defaultGroupName = |
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181 (pkgNameGroupMap.isEmpty() && regExpGroupMap.isEmpty())? |
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182 configuration.message.getText("doclet.Packages") : |
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183 configuration.message.getText("doclet.Other_Packages"); |
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184 // if the user has not used the default group name, add it |
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185 if (!groupList.contains(defaultGroupName)) { |
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186 groupList.add(defaultGroupName); |
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187 } |
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188 for (int i = 0; i < packages.length; i++) { |
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189 PackageDoc pkg = packages[i]; |
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190 String pkgName = pkg.name(); |
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191 String groupName = pkgNameGroupMap.get(pkgName); |
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192 // if this package is not explicitly assigned to a group, |
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193 // try matching it to group specified by regular expression |
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194 if (groupName == null) { |
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195 groupName = regExpGroupName(pkgName); |
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196 } |
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197 // if it is in neither group map, put it in the default |
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198 // group |
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199 if (groupName == null) { |
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200 groupName = defaultGroupName; |
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201 } |
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202 getPkgList(groupPackageMap, groupName).add(pkg); |
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203 } |
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204 return groupPackageMap; |
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205 } |
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206 |
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207 /** |
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208 * Search for package name in the sorted regular expression |
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209 * list, if found return the group name. If not, return null. |
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210 * |
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211 * @param pkgName Name of package to be found in the regular |
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212 * expression list. |
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213 */ |
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214 String regExpGroupName(String pkgName) { |
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215 for (int j = 0; j < sortedRegExpList.size(); j++) { |
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216 String regexp = sortedRegExpList.get(j); |
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217 if (pkgName.startsWith(regexp)) { |
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218 return regExpGroupMap.get(regexp); |
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219 } |
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220 } |
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221 return null; |
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222 } |
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223 |
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224 /** |
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225 * For the given group name, return the package list, on which it is mapped. |
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226 * Create a new list, if not found. |
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227 * |
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228 * @param map Map to be searched for gorup name. |
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229 * @param groupname Group name to search. |
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230 */ |
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231 List<PackageDoc> getPkgList(Map<String,List<PackageDoc>> map, String groupname) { |
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232 List<PackageDoc> list = map.get(groupname); |
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233 if (list == null) { |
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234 list = new ArrayList<PackageDoc>(); |
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235 map.put(groupname, list); |
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236 } |
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237 return list; |
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238 } |
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239 |
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240 /** |
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241 * Return the list of groups, in the same order as specified |
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242 * on the command line. |
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243 */ |
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244 public List<String> getGroupList() { |
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245 return groupList; |
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246 } |
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247 } |