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1 /* |
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2 * Copyright (c) 2011, 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. |
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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 |
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24 /* |
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25 * @test |
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26 * @bug 7093891 |
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27 * @summary support multiple task listeners |
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28 */ |
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29 |
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30 import java.io.File; |
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31 import java.io.IOException; |
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32 import java.io.PrintWriter; |
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33 import java.io.StringWriter; |
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34 import java.net.URI; |
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35 import java.util.ArrayList; |
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36 import java.util.Arrays; |
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37 import java.util.EnumMap; |
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38 import java.util.List; |
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39 import java.util.Set; |
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40 |
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41 import javax.annotation.processing.AbstractProcessor; |
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42 import javax.annotation.processing.RoundEnvironment; |
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43 import javax.annotation.processing.SupportedAnnotationTypes; |
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44 import javax.lang.model.element.TypeElement; |
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45 import javax.tools.JavaFileObject; |
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46 import javax.tools.SimpleJavaFileObject; |
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47 import javax.tools.StandardJavaFileManager; |
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48 import javax.tools.StandardLocation; |
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49 import javax.tools.ToolProvider; |
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50 |
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51 import com.sun.source.util.JavacTask; |
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52 import com.sun.source.util.TaskEvent; |
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53 import com.sun.source.util.TaskListener; |
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54 import com.sun.tools.javac.api.JavacTool; |
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55 |
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56 public class TestSimpleAddRemove { |
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57 enum AddKind { |
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58 SET_IN_TASK, |
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59 ADD_IN_TASK, |
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60 ADD_IN_PROCESSOR, |
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61 ADD_IN_LISTENER; |
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62 } |
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63 |
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64 enum RemoveKind { |
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65 REMOVE_IN_TASK, |
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66 REMOVE_IN_PROCESSOR, |
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67 REMOVE_IN_LISTENER, |
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68 } |
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69 |
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70 enum CompileKind { |
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71 CALL { |
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72 void run(JavacTask t) { |
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73 if (!t.call()) throw new Error("compilation failed"); |
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74 } |
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75 }, |
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76 GENERATE { |
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77 void run(JavacTask t) throws IOException { |
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78 t.generate(); |
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79 } |
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80 }; |
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81 abstract void run(JavacTask t) throws IOException; |
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82 } |
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83 |
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84 static class EventKindCounter extends EnumMap<TaskEvent.Kind, EventKindCounter.Count> { |
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85 static class Count { |
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86 int started; |
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87 int finished; |
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88 |
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89 @Override |
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90 public String toString() { |
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91 return started + ":" + finished; |
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92 } |
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93 } |
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94 |
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95 EventKindCounter() { |
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96 super(TaskEvent.Kind.class); |
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97 } |
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98 |
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99 void inc(TaskEvent.Kind k, boolean started) { |
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100 Count c = get(k); |
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101 if (c == null) |
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102 put(k, c = new Count()); |
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103 |
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104 if (started) |
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105 c.started++; |
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106 else |
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107 c.finished++; |
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108 } |
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109 } |
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110 |
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111 static class TestListener implements TaskListener { |
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112 EventKindCounter counter; |
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113 |
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114 TestListener(EventKindCounter c) { |
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115 counter = c; |
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116 } |
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117 |
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118 public void started(TaskEvent e) { |
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119 counter.inc(e.getKind(), true); |
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120 } |
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121 |
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122 public void finished(TaskEvent e) { |
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123 counter.inc(e.getKind(), false); |
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124 } |
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125 } |
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126 |
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127 static void addInListener(final JavacTask task, final TaskEvent.Kind kind, final TaskListener listener) { |
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128 task.addTaskListener(new TaskListener() { |
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129 public void started(TaskEvent e) { |
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130 if (e.getKind() == kind) { |
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131 task.addTaskListener(listener); |
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132 task.removeTaskListener(this); |
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133 } |
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134 } |
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135 |
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136 public void finished(TaskEvent e) { } |
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137 }); |
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138 } |
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139 |
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140 static void removeInListener(final JavacTask task, final TaskEvent.Kind kind, final TaskListener listener) { |
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141 task.addTaskListener(new TaskListener() { |
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142 public void started(TaskEvent e) { |
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143 if (e.getKind() == kind) { |
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144 task.removeTaskListener(listener); |
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145 task.removeTaskListener(this); |
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146 } |
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147 } |
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148 |
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149 public void finished(TaskEvent e) { } |
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150 }); |
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151 } |
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152 |
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153 @SupportedAnnotationTypes("*") |
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154 class TestProcessor extends AbstractProcessor { |
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155 AddKind ak; |
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156 RemoveKind rk; |
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157 TaskListener listener; |
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158 |
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159 TestProcessor(AddKind ak, RemoveKind rk, TaskListener listener) { |
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160 this.ak = ak; |
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161 this.rk = rk; |
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162 this.listener = listener; |
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163 } |
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164 |
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165 int round = 0; |
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166 |
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167 @Override |
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168 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
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169 // System.err.println("TestProcessor.process " + roundEnv); |
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170 JavacTask task = JavacTask.instance(processingEnv); |
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171 if (++round == 1) { |
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172 switch (ak) { |
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173 case ADD_IN_PROCESSOR: |
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174 task.addTaskListener(listener); |
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175 break; |
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176 case ADD_IN_LISTENER: |
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177 addInListener(task, TaskEvent.Kind.ANALYZE, listener); |
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178 break; |
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179 } |
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180 } else if (roundEnv.processingOver()) { |
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181 switch (rk) { |
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182 case REMOVE_IN_PROCESSOR: |
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183 task.removeTaskListener(listener); |
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184 break; |
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185 case REMOVE_IN_LISTENER: |
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186 removeInListener(task, TaskEvent.Kind.GENERATE, listener); |
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187 break; |
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188 } |
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189 } |
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190 return true; |
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191 } |
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192 } |
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193 |
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194 static class TestSource extends SimpleJavaFileObject { |
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195 public TestSource() { |
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196 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
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197 } |
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198 |
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199 @Override |
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200 public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
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201 return "class Test { }"; |
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202 } |
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203 } |
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204 |
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205 public static void main(String... args) throws Exception { |
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206 new TestSimpleAddRemove().run(); |
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207 } |
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208 |
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209 JavacTool tool = (JavacTool) ToolProvider.getSystemJavaCompiler(); |
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210 StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); |
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211 |
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212 void run() throws Exception { |
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213 for (CompileKind ck: CompileKind.values()) { |
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214 for (AddKind ak: AddKind.values()) { |
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215 for (RemoveKind rk: RemoveKind.values()) { |
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216 test(ck, ak, rk); |
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217 } |
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218 } |
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219 } |
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220 if (errors > 0) |
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221 throw new Exception(errors + " errors occurred"); |
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222 } |
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223 |
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224 void test(CompileKind ck, AddKind ak, RemoveKind rk) throws IOException { |
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225 System.err.println("Test: " + ck + " " + ak + " " + rk); |
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226 |
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227 File tmpDir = new File(ck + "-" + ak + "-" + rk); |
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228 tmpDir.mkdirs(); |
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229 fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(tmpDir)); |
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230 |
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231 List<String> options = new ArrayList<String>(); |
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232 Iterable<? extends JavaFileObject> files = Arrays.asList(new TestSource()); |
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233 StringWriter sw = new StringWriter(); |
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234 PrintWriter pw = new PrintWriter(sw); |
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235 JavacTask task = tool.getTask(pw, fm, null, options, null, files); |
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236 |
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237 EventKindCounter ec = new EventKindCounter(); |
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238 TaskListener listener = new TestListener(ec); |
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239 boolean needProcessor = false; |
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240 |
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241 switch (ak) { |
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242 case SET_IN_TASK: |
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243 task.setTaskListener(listener); |
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244 break; |
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245 case ADD_IN_TASK: |
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246 task.addTaskListener(listener); |
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247 break; |
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248 case ADD_IN_PROCESSOR: |
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249 case ADD_IN_LISTENER: |
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250 needProcessor = true; |
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251 } |
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252 |
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253 switch (rk) { |
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254 case REMOVE_IN_TASK: |
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255 task.removeTaskListener(listener); |
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256 break; |
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257 case REMOVE_IN_PROCESSOR: |
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258 case REMOVE_IN_LISTENER: |
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259 needProcessor = true; |
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260 } |
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261 |
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262 if (needProcessor) |
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263 task.setProcessors(Arrays.asList(new TestProcessor(ak, rk, listener))); |
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264 |
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265 ck.run(task); |
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266 System.err.println(ec); |
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267 |
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268 check(ck, ak, rk, ec); |
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269 |
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270 System.err.println(); |
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271 } |
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272 |
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273 void check(CompileKind ck, AddKind ak, RemoveKind rk, EventKindCounter ec) { |
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274 // All results should be independent of ck, so we can ignore that |
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275 |
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276 // Quick way to compare expected values of ec, by comparing ec.toString() |
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277 String expect = ec.toString(); |
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278 String found; |
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279 |
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280 switch (ak) { |
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281 // Add/set in task should record all events until the listener is removed |
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282 case SET_IN_TASK: |
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283 case ADD_IN_TASK: |
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284 switch (rk) { |
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285 case REMOVE_IN_TASK: |
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286 // Remove will succeed, meaning no events will be recorded |
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287 found = "{}"; |
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288 break; |
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289 case REMOVE_IN_PROCESSOR: |
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290 found = "{PARSE=1:1, ENTER=2:2, ANNOTATION_PROCESSING=1:0, ANNOTATION_PROCESSING_ROUND=2:1}"; |
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291 break; |
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292 case REMOVE_IN_LISTENER: |
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293 found = "{PARSE=1:1, ENTER=3:3, ANALYZE=1:1, GENERATE=1:0, ANNOTATION_PROCESSING=1:1, ANNOTATION_PROCESSING_ROUND=2:2}"; |
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294 break; |
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295 default: |
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296 throw new IllegalStateException(); |
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297 } |
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298 break; |
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299 |
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300 // "Add in processor" should skip initial PARSE/ENTER events |
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301 case ADD_IN_PROCESSOR: |
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302 switch (rk) { |
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303 // Remove will fail (too early), so events to end will be recorded |
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304 case REMOVE_IN_TASK: |
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305 found = "{ENTER=2:2, ANALYZE=1:1, GENERATE=1:1, ANNOTATION_PROCESSING=0:1, ANNOTATION_PROCESSING_ROUND=1:2}"; |
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306 break; |
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307 case REMOVE_IN_PROCESSOR: |
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308 found = "{ENTER=1:1, ANNOTATION_PROCESSING_ROUND=1:1}"; |
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309 break; |
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310 case REMOVE_IN_LISTENER: |
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311 found = "{ENTER=2:2, ANALYZE=1:1, GENERATE=1:0, ANNOTATION_PROCESSING=0:1, ANNOTATION_PROCESSING_ROUND=1:2}"; |
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312 break; |
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313 default: |
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314 throw new IllegalStateException(); |
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315 } |
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316 break; |
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317 |
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318 // "Add in listener" will occur during "ANALYSE.started" event |
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319 case ADD_IN_LISTENER: |
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320 switch (rk) { |
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321 // Remove will fail (too early, so events to end will be recorded |
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322 case REMOVE_IN_TASK: |
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323 case REMOVE_IN_PROCESSOR: |
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324 found = "{ANALYZE=0:1, GENERATE=1:1}"; |
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325 break; |
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326 // Remove will succeed during "GENERATE.finished" event |
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327 case REMOVE_IN_LISTENER: |
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328 found = "{ANALYZE=0:1, GENERATE=1:0}"; |
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329 break; |
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330 default: |
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331 throw new IllegalStateException(); |
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332 } |
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333 break; |
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334 default: |
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335 throw new IllegalStateException(); |
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336 } |
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337 |
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338 if (!found.equals(expect)) { |
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339 System.err.println("Expected: " + expect); |
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340 System.err.println(" Found: " + found); |
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341 error("unexpected value found"); |
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342 } |
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343 } |
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344 |
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345 int errors; |
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346 |
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347 void error(String message) { |
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348 System.err.println("Error: " + message); |
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349 errors++; |
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350 } |
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351 } |