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1 /* |
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2 * Copyright (c) 2013, 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 package com.sun.tools.jdeps; |
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26 |
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27 import com.sun.tools.classfile.Annotation; |
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28 import com.sun.tools.classfile.Annotation.*; |
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29 import com.sun.tools.classfile.Attribute; |
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30 import com.sun.tools.classfile.ClassFile; |
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31 import com.sun.tools.classfile.ConstantPool.*; |
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32 import com.sun.tools.classfile.ConstantPoolException; |
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33 import com.sun.tools.classfile.RuntimeAnnotations_attribute; |
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34 import java.io.FileReader; |
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35 import java.io.IOException; |
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36 import java.nio.file.Files; |
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37 import java.nio.file.Path; |
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38 import java.nio.file.Paths; |
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39 import java.util.*; |
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40 import java.util.jar.JarFile; |
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41 |
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42 /** |
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43 * Build the profile information from ct.sym if exists. |
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44 */ |
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45 enum Profile { |
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46 |
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47 COMPACT1("compact1", 1), |
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48 COMPACT2("compact2", 2), |
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49 COMPACT3("compact3", 3), |
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50 FULL_JRE("Full JRE", 4); |
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51 |
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52 final String name; |
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53 final int profile; |
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54 final Set<String> packages; |
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55 final Set<String> proprietaryPkgs; |
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56 |
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57 Profile(String name, int profile) { |
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58 this.name = name; |
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59 this.profile = profile; |
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60 this.packages = new HashSet<>(); |
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61 this.proprietaryPkgs = new HashSet<>(); |
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62 } |
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63 |
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64 @Override |
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65 public String toString() { |
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66 return name; |
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67 } |
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68 |
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69 public static int getProfileCount() { |
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70 return PackageToProfile.map.values().size(); |
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71 } |
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72 |
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73 /** |
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74 * Returns the Profile for the given package name. It returns an empty |
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75 * string if the given package is not in any profile. |
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76 */ |
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77 public static Profile getProfile(String pn) { |
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78 Profile profile = PackageToProfile.map.get(pn); |
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79 return (profile != null && profile.packages.contains(pn)) |
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80 ? profile : null; |
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81 } |
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82 |
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83 static class PackageToProfile { |
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84 static Map<String, Profile> map = initProfiles(); |
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85 |
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86 private static Map<String, Profile> initProfiles() { |
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87 try { |
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88 String profilesProps = System.getProperty("jdeps.profiles"); |
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89 if (profilesProps != null) { |
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90 // for testing for JDK development build where ct.sym doesn't exist |
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91 initProfilesFromProperties(profilesProps); |
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92 } else { |
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93 Path home = Paths.get(System.getProperty("java.home")); |
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94 if (home.endsWith("jre")) { |
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95 home = home.getParent(); |
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96 } |
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97 Path ctsym = home.resolve("lib").resolve("ct.sym"); |
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98 if (Files.exists(ctsym)) { |
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99 // parse ct.sym and load information about profiles |
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100 try (JarFile jf = new JarFile(ctsym.toFile())) { |
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101 ClassFileReader reader = ClassFileReader.newInstance(ctsym, jf); |
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102 for (ClassFile cf : reader.getClassFiles()) { |
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103 findProfile(cf); |
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104 } |
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105 } |
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106 } |
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107 } |
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108 } catch (IOException | ConstantPoolException e) { |
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109 throw new Error(e); |
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110 } |
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111 HashMap<String,Profile> map = new HashMap<>(); |
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112 for (Profile profile : Profile.values()) { |
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113 for (String pn : profile.packages) { |
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114 if (!map.containsKey(pn)) { |
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115 // split packages in the JRE: use the smaller compact |
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116 map.put(pn, profile); |
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117 } |
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118 } |
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119 for (String pn : profile.proprietaryPkgs) { |
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120 if (!map.containsKey(pn)) { |
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121 map.put(pn, profile); |
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122 } |
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123 } |
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124 } |
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125 return map; |
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126 } |
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127 private static final String PROFILE_ANNOTATION = "Ljdk/Profile+Annotation;"; |
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128 private static final String PROPRIETARY_ANNOTATION = "Lsun/Proprietary+Annotation;"; |
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129 private static Profile findProfile(ClassFile cf) throws ConstantPoolException { |
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130 RuntimeAnnotations_attribute attr = (RuntimeAnnotations_attribute) |
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131 cf.attributes.get(Attribute.RuntimeInvisibleAnnotations); |
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132 int index = 0; |
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133 boolean proprietary = false; |
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134 if (attr != null) { |
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135 for (int i = 0; i < attr.annotations.length; i++) { |
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136 Annotation ann = attr.annotations[i]; |
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137 String annType = cf.constant_pool.getUTF8Value(ann.type_index); |
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138 if (PROFILE_ANNOTATION.equals(annType)) { |
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139 for (int j = 0; j < ann.num_element_value_pairs; j++) { |
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140 Annotation.element_value_pair pair = ann.element_value_pairs[j]; |
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141 Primitive_element_value ev = (Primitive_element_value) pair.value; |
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142 CONSTANT_Integer_info info = (CONSTANT_Integer_info) |
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143 cf.constant_pool.get(ev.const_value_index); |
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144 index = info.value; |
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145 break; |
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146 } |
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147 } else if (PROPRIETARY_ANNOTATION.equals(annType)) { |
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148 proprietary = true; |
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149 } |
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150 } |
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151 } |
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152 |
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153 Profile p = null; // default |
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154 switch (index) { |
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155 case 1: |
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156 p = Profile.COMPACT1; break; |
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157 case 2: |
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158 p = Profile.COMPACT2; break; |
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159 case 3: |
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160 p = Profile.COMPACT3; break; |
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161 case 4: |
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162 p = Profile.FULL_JRE; break; |
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163 default: |
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164 // skip classes with profile=0 |
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165 // Inner classes are not annotated with the profile annotation |
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166 return null; |
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167 } |
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168 |
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169 String name = cf.getName(); |
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170 int i = name.lastIndexOf('/'); |
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171 name = (i > 0) ? name.substring(0, i).replace('/', '.') : ""; |
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172 if (proprietary) { |
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173 p.proprietaryPkgs.add(name); |
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174 } else { |
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175 p.packages.add(name); |
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176 } |
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177 return p; |
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178 } |
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179 |
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180 private static void initProfilesFromProperties(String path) throws IOException { |
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181 Properties props = new Properties(); |
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182 try (FileReader reader = new FileReader(path)) { |
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183 props.load(reader); |
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184 } |
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185 for (Profile prof : Profile.values()) { |
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186 int i = prof.profile; |
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187 String key = props.getProperty("profile." + i + ".name"); |
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188 if (key == null) { |
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189 throw new RuntimeException(key + " missing in " + path); |
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190 } |
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191 String n = props.getProperty("profile." + i + ".packages"); |
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192 String[] pkgs = n.split("\\s+"); |
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193 for (String p : pkgs) { |
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194 if (p.isEmpty()) continue; |
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195 prof.packages.add(p); |
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196 } |
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197 } |
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198 } |
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199 } |
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200 |
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201 // for debugging |
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202 public static void main(String[] args) { |
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203 if (args.length == 0) { |
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204 if (Profile.getProfileCount() == 0) { |
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205 System.err.println("No profile is present in this JDK"); |
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206 } |
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207 for (Profile p : Profile.values()) { |
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208 String profileName = p.name; |
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209 SortedSet<String> set = new TreeSet<>(p.packages); |
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210 for (String s : set) { |
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211 // filter out the inner classes that are not annotated with |
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212 // the profile annotation |
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213 if (PackageToProfile.map.get(s) == p) { |
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214 System.out.format("%2d: %-10s %s%n", p.profile, profileName, s); |
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215 profileName = ""; |
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216 } else { |
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217 System.err.format("Split package: %s in %s and %s %n", |
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218 s, PackageToProfile.map.get(s).name, p.name); |
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219 } |
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220 } |
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221 } |
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222 } |
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223 for (String pn : args) { |
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224 System.out.format("%s in %s%n", pn, getProfile(pn)); |
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225 } |
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226 } |
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227 } |