build/annotationProcessors/AnnotationProcessor.java@97036ab72558 (annotated)
build/annotationProcessors/AnnotationProcessor.java
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | package org.mozilla.gecko.annotationProcessors; |
| michael@0 | 6 | |
| michael@0 | 7 | import org.mozilla.gecko.annotationProcessors.classloader.AnnotatableEntity; |
| michael@0 | 8 | import org.mozilla.gecko.annotationProcessors.classloader.ClassWithOptions; |
| michael@0 | 9 | import org.mozilla.gecko.annotationProcessors.classloader.IterableJarLoadingURLClassLoader; |
| michael@0 | 10 | import org.mozilla.gecko.annotationProcessors.utils.GeneratableElementIterator; |
| michael@0 | 11 | |
| michael@0 | 12 | import java.io.FileOutputStream; |
| michael@0 | 13 | import java.io.IOException; |
| michael@0 | 14 | import java.util.Arrays; |
| michael@0 | 15 | import java.util.Iterator; |
| michael@0 | 16 | |
| michael@0 | 17 | public class AnnotationProcessor { |
| michael@0 | 18 | public static final String OUTFILE = "GeneratedJNIWrappers.cpp"; |
| michael@0 | 19 | public static final String HEADERFILE = "GeneratedJNIWrappers.h"; |
| michael@0 | 20 | |
| michael@0 | 21 | public static final String GENERATED_COMMENT = |
| michael@0 | 22 | "// GENERATED CODE\n" + |
| michael@0 | 23 | "// Generated by the Java program at /build/annotationProcessors at compile time from\n" + |
| michael@0 | 24 | "// annotations on Java methods. To update, change the annotations on the corresponding Java\n" + |
| michael@0 | 25 | "// methods and rerun the build. Manually updating this file will cause your build to fail.\n\n"; |
| michael@0 | 26 | |
| michael@0 | 27 | public static void main(String[] args) { |
| michael@0 | 28 | // We expect a list of jars on the commandline. If missing, whinge about it. |
| michael@0 | 29 | if (args.length <= 1) { |
| michael@0 | 30 | System.err.println("Usage: java AnnotationProcessor jarfiles ..."); |
| michael@0 | 31 | System.exit(1); |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | System.out.println("Processing annotations..."); |
| michael@0 | 35 | |
| michael@0 | 36 | // We want to produce the same output as last time as often as possible. Ordering of |
| michael@0 | 37 | // generated statements, therefore, needs to be consistent. |
| michael@0 | 38 | Arrays.sort(args); |
| michael@0 | 39 | |
| michael@0 | 40 | // Start the clock! |
| michael@0 | 41 | long s = System.currentTimeMillis(); |
| michael@0 | 42 | |
| michael@0 | 43 | // Get an iterator over the classes in the jar files given... |
| michael@0 | 44 | Iterator<ClassWithOptions> jarClassIterator = IterableJarLoadingURLClassLoader.getIteratorOverJars(args); |
| michael@0 | 45 | |
| michael@0 | 46 | StringBuilder headerFile = new StringBuilder(GENERATED_COMMENT); |
| michael@0 | 47 | headerFile.append("#ifndef GeneratedJNIWrappers_h__\n" + |
| michael@0 | 48 | "#define GeneratedJNIWrappers_h__\n\n" + |
| michael@0 | 49 | "#include \"nsXPCOMStrings.h\"\n" + |
| michael@0 | 50 | "#include \"AndroidJavaWrappers.h\"\n" + |
| michael@0 | 51 | "\n" + |
| michael@0 | 52 | "namespace mozilla {\n" + |
| michael@0 | 53 | "namespace widget {\n" + |
| michael@0 | 54 | "namespace android {\n" + |
| michael@0 | 55 | "void InitStubs(JNIEnv *jEnv);\n\n"); |
| michael@0 | 56 | |
| michael@0 | 57 | StringBuilder implementationFile = new StringBuilder(GENERATED_COMMENT); |
| michael@0 | 58 | implementationFile.append("#include \"GeneratedJNIWrappers.h\"\n" + |
| michael@0 | 59 | "#include \"AndroidBridgeUtilities.h\"\n" + |
| michael@0 | 60 | "#include \"nsXPCOMStrings.h\"\n" + |
| michael@0 | 61 | "#include \"AndroidBridge.h\"\n" + |
| michael@0 | 62 | "\n" + |
| michael@0 | 63 | "namespace mozilla {\n" + |
| michael@0 | 64 | "namespace widget {\n" + |
| michael@0 | 65 | "namespace android {\n"); |
| michael@0 | 66 | |
| michael@0 | 67 | // Used to track the calls to the various class-specific initialisation functions. |
| michael@0 | 68 | StringBuilder stubInitialiser = new StringBuilder(); |
| michael@0 | 69 | stubInitialiser.append("void InitStubs(JNIEnv *jEnv) {\n"); |
| michael@0 | 70 | |
| michael@0 | 71 | while (jarClassIterator.hasNext()) { |
| michael@0 | 72 | ClassWithOptions aClassTuple = jarClassIterator.next(); |
| michael@0 | 73 | |
| michael@0 | 74 | CodeGenerator generatorInstance; |
| michael@0 | 75 | |
| michael@0 | 76 | // Get an iterator over the appropriately generated methods of this class |
| michael@0 | 77 | Iterator<AnnotatableEntity> methodIterator = new GeneratableElementIterator(aClassTuple.wrappedClass); |
| michael@0 | 78 | |
| michael@0 | 79 | if (!methodIterator.hasNext()) { |
| michael@0 | 80 | continue; |
| michael@0 | 81 | } |
| michael@0 | 82 | generatorInstance = new CodeGenerator(aClassTuple.wrappedClass, aClassTuple.generatedName); |
| michael@0 | 83 | |
| michael@0 | 84 | stubInitialiser.append(" ").append(aClassTuple.generatedName).append("::InitStubs(jEnv);\n"); |
| michael@0 | 85 | |
| michael@0 | 86 | // Iterate all annotated members in this class.. |
| michael@0 | 87 | while (methodIterator.hasNext()) { |
| michael@0 | 88 | AnnotatableEntity aElementTuple = methodIterator.next(); |
| michael@0 | 89 | switch (aElementTuple.mEntityType) { |
| michael@0 | 90 | case METHOD: |
| michael@0 | 91 | generatorInstance.generateMethod(aElementTuple); |
| michael@0 | 92 | break; |
| michael@0 | 93 | case FIELD: |
| michael@0 | 94 | generatorInstance.generateField(aElementTuple); |
| michael@0 | 95 | break; |
| michael@0 | 96 | case CONSTRUCTOR: |
| michael@0 | 97 | generatorInstance.generateConstructor(aElementTuple); |
| michael@0 | 98 | break; |
| michael@0 | 99 | } |
| michael@0 | 100 | } |
| michael@0 | 101 | |
| michael@0 | 102 | headerFile.append(generatorInstance.getHeaderFileContents()); |
| michael@0 | 103 | implementationFile.append(generatorInstance.getWrapperFileContents()); |
| michael@0 | 104 | } |
| michael@0 | 105 | |
| michael@0 | 106 | implementationFile.append('\n'); |
| michael@0 | 107 | stubInitialiser.append("}"); |
| michael@0 | 108 | implementationFile.append(stubInitialiser); |
| michael@0 | 109 | |
| michael@0 | 110 | implementationFile.append("\n} /* android */\n" + |
| michael@0 | 111 | "} /* widget */\n" + |
| michael@0 | 112 | "} /* mozilla */\n"); |
| michael@0 | 113 | |
| michael@0 | 114 | headerFile.append("\n} /* android */\n" + |
| michael@0 | 115 | "} /* widget */\n" + |
| michael@0 | 116 | "} /* mozilla */\n" + |
| michael@0 | 117 | "#endif\n"); |
| michael@0 | 118 | |
| michael@0 | 119 | writeOutputFiles(headerFile, implementationFile); |
| michael@0 | 120 | long e = System.currentTimeMillis(); |
| michael@0 | 121 | System.out.println("Annotation processing complete in " + (e - s) + "ms"); |
| michael@0 | 122 | } |
| michael@0 | 123 | |
| michael@0 | 124 | private static void writeOutputFiles(StringBuilder aHeaderFile, StringBuilder aImplementationFile) { |
| michael@0 | 125 | FileOutputStream headerStream = null; |
| michael@0 | 126 | try { |
| michael@0 | 127 | headerStream = new FileOutputStream(OUTFILE); |
| michael@0 | 128 | headerStream.write(aImplementationFile.toString().getBytes()); |
| michael@0 | 129 | } catch (IOException e) { |
| michael@0 | 130 | System.err.println("Unable to write " + OUTFILE + ". Perhaps a permissions issue?"); |
| michael@0 | 131 | e.printStackTrace(System.err); |
| michael@0 | 132 | } finally { |
| michael@0 | 133 | if (headerStream != null) { |
| michael@0 | 134 | try { |
| michael@0 | 135 | headerStream.close(); |
| michael@0 | 136 | } catch (IOException e) { |
| michael@0 | 137 | System.err.println("Unable to close headerStream due to "+e); |
| michael@0 | 138 | e.printStackTrace(System.err); |
| michael@0 | 139 | } |
| michael@0 | 140 | } |
| michael@0 | 141 | } |
| michael@0 | 142 | |
| michael@0 | 143 | FileOutputStream outStream = null; |
| michael@0 | 144 | try { |
| michael@0 | 145 | outStream = new FileOutputStream(HEADERFILE); |
| michael@0 | 146 | outStream.write(aHeaderFile.toString().getBytes()); |
| michael@0 | 147 | } catch (IOException e) { |
| michael@0 | 148 | System.err.println("Unable to write " + HEADERFILE + ". Perhaps a permissions issue?"); |
| michael@0 | 149 | e.printStackTrace(System.err); |
| michael@0 | 150 | } finally { |
| michael@0 | 151 | if (outStream != null) { |
| michael@0 | 152 | try { |
| michael@0 | 153 | outStream.close(); |
| michael@0 | 154 | } catch (IOException e) { |
| michael@0 | 155 | System.err.println("Unable to close outStream due to "+e); |
| michael@0 | 156 | e.printStackTrace(System.err); |
| michael@0 | 157 | } |
| michael@0 | 158 | } |
| michael@0 | 159 | } |
| michael@0 | 160 | } |
| michael@0 | 161 | } |
