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Bug 1086693 - Part 1: Add SDKProcessor r=ckitching
This commit is contained in:
James Willcox
parent
36c5013867
commit
c7d806f9fd
@ -12,6 +12,7 @@ import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.Member;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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import java.util.HashMap;
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import java.util.HashSet;
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@ -234,6 +235,27 @@ public class CodeGenerator {
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}
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}
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public void generateMembers(Member[] members) {
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for (Member m : members) {
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if (!Modifier.isPublic(m.getModifiers())) {
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continue;
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}
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String name = m.getName();
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name = name.substring(0, 1).toUpperCase() + name.substring(1);
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AnnotationInfo info = new AnnotationInfo(name, true, true, true);
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AnnotatableEntity entity = new AnnotatableEntity(m, info);
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if (m instanceof Constructor) {
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generateConstructor(entity);
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} else if (m instanceof Method) {
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generateMethod(entity);
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} else if (m instanceof Field) {
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generateField(entity);
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}
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}
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}
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/**
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* Writes the appropriate header and startup code to ensure the existence of a reference to the
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* class specified. If this is already done, does nothing.
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214
build/annotationProcessors/SDKProcessor.java
Normal file
214
build/annotationProcessors/SDKProcessor.java
Normal file
@ -0,0 +1,214 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko.annotationProcessors;
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import org.mozilla.gecko.annotationProcessors.classloader.AnnotatableEntity;
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import org.mozilla.gecko.annotationProcessors.classloader.ClassWithOptions;
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import org.mozilla.gecko.annotationProcessors.classloader.IterableJarLoadingURLClassLoader;
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import org.mozilla.gecko.annotationProcessors.utils.GeneratableElementIterator;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.Iterator;
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import java.util.Scanner;
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import java.util.Vector;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.Member;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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public class SDKProcessor {
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public static final String GENERATED_COMMENT =
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"// GENERATED CODE\n" +
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"// Generated by the Java program at /build/annotationProcessors at compile time from\n" +
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"// annotations on Java methods. To update, change the annotations on the corresponding Java\n" +
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"// methods and rerun the build. Manually updating this file will cause your build to fail.\n\n";
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public static void main(String[] args) {
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// We expect a list of jars on the commandline. If missing, whinge about it.
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if (args.length < 4) {
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System.err.println("Usage: java SDKProcessor sdkjar classlistfile outdir fileprefix");
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System.exit(1);
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}
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System.out.println("Processing platform bindings...");
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String sdkJar = args[0];
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Vector classes = getClassList(args[1]);
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String outdir = args[2];
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String generatedFilePrefix = args[3];
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// Start the clock!
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long s = System.currentTimeMillis();
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// Get an iterator over the classes in the jar files given...
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// Iterator<ClassWithOptions> jarClassIterator = IterableJarLoadingURLClassLoader.getIteratorOverJars(args);
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StringBuilder headerFile = new StringBuilder(GENERATED_COMMENT);
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headerFile.append("#ifndef " + generatedFilePrefix + "_h__\n" +
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"#define " + generatedFilePrefix + "_h__\n" +
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"#include \"nsXPCOMStrings.h\"\n" +
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"#include \"AndroidJavaWrappers.h\"\n" +
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"\n" +
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"namespace mozilla {\n" +
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"namespace widget {\n" +
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"namespace android {\n" +
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"namespace sdk {\n" +
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"void Init" + generatedFilePrefix + "Stubs(JNIEnv *jEnv);\n\n");
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StringBuilder implementationFile = new StringBuilder(GENERATED_COMMENT);
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implementationFile.append("#include \"" + generatedFilePrefix + ".h\"\n" +
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"#include \"AndroidBridgeUtilities.h\"\n" +
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"#include \"nsXPCOMStrings.h\"\n" +
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"#include \"AndroidBridge.h\"\n" +
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"\n" +
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"namespace mozilla {\n" +
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"namespace widget {\n" +
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"namespace android {\n" +
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"namespace sdk {\n");
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// Used to track the calls to the various class-specific initialisation functions.
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StringBuilder stubInitializer = new StringBuilder();
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stubInitializer.append("void Init" + generatedFilePrefix + "Stubs(JNIEnv *jEnv) {\n");
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ClassLoader loader = null;
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try {
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loader = URLClassLoader.newInstance(new URL[] { new URL("file://" + sdkJar) },
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SDKProcessor.class.getClassLoader());
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} catch (Exception e) {
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System.out.println(e);
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}
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for (Iterator<String> i = classes.iterator(); i.hasNext(); ) {
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String className = i.next();
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System.out.println("looking up: " + className);
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try {
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Class<?> c = Class.forName(className, true, loader);
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generateClass(Class.forName(className, true, loader),
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stubInitializer,
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implementationFile,
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headerFile);
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} catch (Exception e) {
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System.out.println("Failed to generate class " + className + ": " + e);
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}
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}
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implementationFile.append('\n');
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stubInitializer.append("}");
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implementationFile.append(stubInitializer);
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implementationFile.append("\n} /* sdk */\n" +
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"} /* android */\n" +
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"} /* widget */\n" +
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"} /* mozilla */\n");
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headerFile.append("\n} /* sdk */\n" +
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"} /* android */\n" +
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"} /* widget */\n" +
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"} /* mozilla */\n" +
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"#endif\n");
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writeOutputFiles(outdir, generatedFilePrefix, headerFile, implementationFile);
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long e = System.currentTimeMillis();
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System.out.println("SDK processing complete in " + (e - s) + "ms");
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}
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private static Member[] sortMembers(Member[] members) {
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Arrays.sort(members, new Comparator<Member>() {
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@Override
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public int compare(Member a, Member b) {
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return a.getName().compareTo(b.getName());
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}
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});
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return members;
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}
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private static void generateClass(Class<?> clazz,
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StringBuilder stubInitializer,
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StringBuilder implementationFile,
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StringBuilder headerFile) {
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String generatedName = clazz.getSimpleName();
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CodeGenerator generator = new CodeGenerator(clazz, generatedName);
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stubInitializer.append(" ").append(generatedName).append("::InitStubs(jEnv);\n");
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generator.generateMembers(sortMembers(clazz.getDeclaredConstructors()));
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generator.generateMembers(sortMembers(clazz.getDeclaredMethods()));
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generator.generateMembers(sortMembers(clazz.getDeclaredFields()));
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headerFile.append(generator.getHeaderFileContents());
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implementationFile.append(generator.getWrapperFileContents());
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}
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private static Vector<String> getClassList(String path) {
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Scanner scanner = null;
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try {
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scanner = new Scanner(new FileInputStream(path));
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Vector lines = new Vector();
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while (scanner.hasNextLine()) {
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lines.add(scanner.nextLine());
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}
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return lines;
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} catch (Exception e) {
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System.out.println(e.toString());
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return null;
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} finally {
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if (scanner != null) {
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scanner.close();
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}
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}
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}
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private static void writeOutputFiles(String aOutputDir, String aPrefix, StringBuilder aHeaderFile,
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StringBuilder aImplementationFile) {
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FileOutputStream implStream = null;
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try {
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implStream = new FileOutputStream(new File(aOutputDir, aPrefix + ".cpp"));
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implStream.write(aImplementationFile.toString().getBytes());
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} catch (IOException e) {
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System.err.println("Unable to write " + aOutputDir + ". Perhaps a permissions issue?");
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e.printStackTrace(System.err);
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} finally {
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if (implStream != null) {
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try {
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implStream.close();
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} catch (IOException e) {
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System.err.println("Unable to close implStream due to "+e);
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e.printStackTrace(System.err);
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}
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}
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}
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FileOutputStream headerStream = null;
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try {
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headerStream = new FileOutputStream(new File(aOutputDir, aPrefix + ".h"));
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headerStream.write(aHeaderFile.toString().getBytes());
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} catch (IOException e) {
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System.err.println("Unable to write " + aOutputDir + ". Perhaps a permissions issue?");
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e.printStackTrace(System.err);
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} finally {
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if (headerStream != null) {
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try {
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headerStream.close();
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} catch (IOException e) {
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System.err.println("Unable to close headerStream due to "+e);
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e.printStackTrace(System.err);
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}
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}
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}
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}
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}
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@ -13,6 +13,7 @@ jar.sources += [
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'classloader/IterableJarLoadingURLClassLoader.java',
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'classloader/JarClassIterator.java',
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'CodeGenerator.java',
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'SDKProcessor.java',
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'utils/AlphabeticAnnotatableEntityComparator.java',
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'utils/GeneratableElementIterator.java',
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'utils/Utils.java',
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