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. 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 build.tools.module; |
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27 |
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28 import java.util.Collections; |
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29 import java.util.HashMap; |
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30 import java.util.HashSet; |
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31 import java.util.Map; |
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32 import java.util.Objects; |
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33 import java.util.Set; |
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34 import java.util.stream.Collectors; |
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35 import java.util.stream.Stream; |
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36 |
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37 public class Module { |
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38 public static class Dependence implements Comparable<Dependence> { |
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39 final String name; |
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40 final boolean reexport; |
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41 Dependence(String name) { |
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42 this(name, false); |
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43 } |
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44 Dependence(String name, boolean reexport) { |
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45 this.name = name; |
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46 this.reexport = reexport; |
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47 } |
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48 |
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49 public String name() { |
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50 return name; |
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51 } |
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52 |
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53 public boolean reexport(){ |
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54 return reexport; |
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55 } |
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56 |
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57 @Override |
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58 public int hashCode() { |
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59 int hash = 5; |
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60 hash = 11 * hash + Objects.hashCode(this.name); |
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61 hash = 11 * hash + (this.reexport ? 1 : 0); |
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62 return hash; |
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63 } |
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64 |
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65 public boolean equals(Object o) { |
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66 Dependence d = (Dependence)o; |
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67 return this.name.equals(d.name) && this.reexport == d.reexport; |
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68 } |
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69 |
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70 @Override |
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71 public int compareTo(Dependence o) { |
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72 int rc = this.name.compareTo(o.name); |
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73 return rc != 0 ? rc : Boolean.compare(this.reexport, o.reexport); |
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74 } |
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75 |
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76 @Override |
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77 public String toString() { |
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78 return String.format("requires %s%s;", |
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79 reexport ? "public " : "", name); |
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80 } |
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81 } |
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82 private final String moduleName; |
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83 private final Set<Dependence> requires; |
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84 private final Map<String, Set<String>> exports; |
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85 private final Set<String> uses; |
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86 private final Map<String, Set<String>> provides; |
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87 |
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88 private Module(String name, |
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89 Set<Dependence> requires, |
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90 Map<String, Set<String>> exports, |
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91 Set<String> uses, |
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92 Map<String, Set<String>> provides) { |
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93 this.moduleName = name; |
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94 this.requires = Collections.unmodifiableSet(requires); |
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95 this.exports = Collections.unmodifiableMap(exports); |
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96 this.uses = Collections.unmodifiableSet(uses); |
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97 this.provides = Collections.unmodifiableMap(provides); |
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98 } |
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99 |
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100 public String name() { |
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101 return moduleName; |
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102 } |
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103 |
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104 public Set<Dependence> requires() { |
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105 return requires; |
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106 } |
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107 |
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108 public Map<String, Set<String>> exports() { |
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109 return exports; |
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110 } |
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111 |
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112 public Set<String> uses() { |
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113 return uses; |
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114 } |
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115 |
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116 public Map<String, Set<String>> provides() { |
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117 return provides; |
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118 } |
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119 |
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120 @Override |
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121 public boolean equals(Object ob) { |
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122 if (!(ob instanceof Module)) { |
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123 return false; |
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124 } |
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125 Module that = (Module) ob; |
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126 return (moduleName.equals(that.moduleName) |
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127 && requires.equals(that.requires) |
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128 && exports.equals(that.exports)); |
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129 } |
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130 |
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131 @Override |
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132 public int hashCode() { |
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133 int hc = moduleName.hashCode(); |
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134 hc = hc * 43 + requires.hashCode(); |
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135 hc = hc * 43 + exports.hashCode(); |
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136 return hc; |
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137 } |
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138 |
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139 @Override |
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140 public String toString() { |
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141 StringBuilder sb = new StringBuilder(); |
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142 sb.append(String.format("module %s {%n", moduleName)); |
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143 requires.stream() |
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144 .sorted() |
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145 .map(d -> String.format(" requires %s%s;%n", d.reexport ? "public " : "", d.name)) |
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146 .forEach(sb::append); |
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147 exports.entrySet().stream() |
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148 .filter(e -> e.getValue().isEmpty()) |
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149 .sorted(Map.Entry.comparingByKey()) |
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150 .map(e -> String.format(" exports %s;%n", e.getKey())) |
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151 .forEach(sb::append); |
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152 exports.entrySet().stream() |
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153 .filter(e -> !e.getValue().isEmpty()) |
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154 .sorted(Map.Entry.comparingByKey()) |
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155 .map(e -> String.format(" exports %s to%n%s;%n", e.getKey(), |
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156 e.getValue().stream().sorted() |
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157 .map(mn -> String.format(" %s", mn)) |
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158 .collect(Collectors.joining(",\n")))) |
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159 .forEach(sb::append); |
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160 uses.stream().sorted() |
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161 .map(s -> String.format(" uses %s;%n", s)) |
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162 .forEach(sb::append); |
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163 provides.entrySet().stream() |
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164 .sorted(Map.Entry.comparingByKey()) |
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165 .flatMap(e -> e.getValue().stream().sorted() |
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166 .map(impl -> String.format(" provides %s with %s;%n", e.getKey(), impl))) |
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167 .forEach(sb::append); |
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168 sb.append("}").append("\n"); |
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169 return sb.toString(); |
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170 } |
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171 |
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172 /** |
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173 * Module Builder |
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174 */ |
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175 static class Builder { |
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176 private String name; |
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177 final Set<Dependence> requires = new HashSet<>(); |
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178 final Map<String, Set<String>> exports = new HashMap<>(); |
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179 final Set<String> uses = new HashSet<>(); |
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180 final Map<String, Set<String>> provides = new HashMap<>(); |
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181 |
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182 public Builder() { |
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183 } |
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184 |
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185 public Builder name(String n) { |
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186 name = n; |
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187 return this; |
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188 } |
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189 |
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190 public Builder require(String d, boolean reexport) { |
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191 requires.add(new Dependence(d, reexport)); |
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192 return this; |
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193 } |
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194 |
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195 public Builder export(String p) { |
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196 Objects.requireNonNull(p); |
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197 if (exports.containsKey(p)) { |
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198 throw new RuntimeException(name + " already exports " + p + |
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199 " " + exports.get(p)); |
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200 } |
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201 return exportTo(p, Collections.emptySet()); |
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202 } |
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203 |
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204 public Builder exportTo(String p, String mn) { |
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205 Objects.requireNonNull(p); |
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206 Objects.requireNonNull(mn); |
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207 Set<String> ms = exports.get(p); |
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208 if (ms != null && ms.isEmpty()) { |
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209 throw new RuntimeException(name + " already has unqualified exports " + p); |
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210 } |
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211 exports.computeIfAbsent(p, _k -> new HashSet<>()).add(mn); |
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212 return this; |
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213 } |
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214 |
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215 public Builder exportTo(String p, Set<String> ms) { |
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216 Objects.requireNonNull(p); |
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217 Objects.requireNonNull(ms); |
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218 if (exports.containsKey(p)) { |
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219 throw new RuntimeException(name + " already exports " + p + |
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220 " " + exports.get(p)); |
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221 } |
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222 exports.put(p, new HashSet<>(ms)); |
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223 return this; |
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224 } |
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225 |
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226 public Builder use(String cn) { |
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227 uses.add(cn); |
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228 return this; |
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229 } |
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230 |
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231 public Builder provide(String s, String impl) { |
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232 provides.computeIfAbsent(s, _k -> new HashSet<>()).add(impl); |
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233 return this; |
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234 } |
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235 |
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236 public Builder merge(Module m1, Module m2) { |
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237 if (!m1.name().equals(m2.name())) { |
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238 throw new IllegalArgumentException(m1.name() + " != " + m2.name()); |
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239 } |
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240 name = m1.name(); |
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241 // ## reexports |
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242 requires.addAll(m1.requires()); |
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243 requires.addAll(m2.requires()); |
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244 Stream.concat(m1.exports().keySet().stream(), m2.exports().keySet().stream()) |
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245 .distinct() |
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246 .forEach(pn -> { |
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247 Set<String> s1 = m2.exports().get(pn); |
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248 Set<String> s2 = m2.exports().get(pn); |
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249 if (s1 == null || s2 == null) { |
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250 exportTo(pn, s1 != null ? s1 : s2); |
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251 } else if (s1.isEmpty() || s2.isEmpty()) { |
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252 // unqualified exports |
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253 export(pn); |
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254 } else { |
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255 exportTo(pn, Stream.concat(s1.stream(), s2.stream()) |
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256 .collect(Collectors.toSet())); |
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257 } |
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258 }); |
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259 uses.addAll(m1.uses()); |
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260 uses.addAll(m2.uses()); |
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261 m1.provides().keySet().stream() |
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262 .forEach(s -> m1.provides().get(s).stream() |
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263 .forEach(impl -> provide(s, impl))); |
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264 m2.provides().keySet().stream() |
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265 .forEach(s -> m2.provides().get(s).stream() |
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266 .forEach(impl -> provide(s, impl))); |
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267 return this; |
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268 } |
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269 |
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270 public Module build() { |
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271 Module m = new Module(name, requires, exports, uses, provides); |
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272 return m; |
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273 } |
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274 |
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275 @Override |
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276 public String toString() { |
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277 return name != null ? name : "Unknown"; |
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278 } |
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279 } |
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280 } |
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