/**
* Compiles the input file and generates the output class file.
*
* @param fullFilePath input .java file path.
* @return class file path.
*/
public static String compileFile(File fullFilePath) throws IOException {
Preconditions.checkArgument(fullFilePath != null && fullFilePath.isFile());
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
Preconditions.checkNotNull(compiler);
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);
Iterable<? extends JavaFileObject> compilationUnit =
fileManager.getJavaFileObjectsFromFiles(Arrays.asList(fullFilePath));
List<String> args = Arrays.asList("-Xlint:none");
boolean result =
compiler.getTask(null, fileManager, diagnostics, args, null, compilationUnit).call();
String msg = "";
if (!result) {
for (Diagnostic diagnostic : diagnostics.getDiagnostics()) {
msg +=
String.format(
"Error on line %d in %s%n",
diagnostic.getLineNumber(), diagnostic.getMessage(null));
}
tracer.err(msg);
}
fileManager.close();
return msg;
}
/**
* Compile the contents of a directory tree, collecting errors so that they can be compared with
* expected errors.
*
* @param compiler the system compiler or Eclipse compiler
* @param options will be passed to the compiler
* @param targetFolder the folder to compile
* @param errors a StringWriter into which compiler output will be written
* @return true if the compilation was successful
*/
public static boolean compileTreeWithErrors(
JavaCompiler compiler,
List<String> options,
File targetFolder,
DiagnosticListener<? super JavaFileObject> diagnosticListener) {
StandardJavaFileManager manager =
compiler.getStandardFileManager(null, Locale.getDefault(), Charset.defaultCharset());
// create new list containing inputfile
List<File> files = new ArrayList<File>();
findFilesUnder(targetFolder, files);
Iterable<? extends JavaFileObject> units = manager.getJavaFileObjectsFromFiles(files);
options.add("-d");
options.add(_tmpBinFolderName);
options.add("-s");
options.add(_tmpGenFolderName);
options.add("-cp");
options.add(
_tmpSrcFolderName
+ File.pathSeparator
+ _tmpGenFolderName
+ File.pathSeparator
+ _processorJarPath);
options.add("-processorpath");
options.add(_processorJarPath);
// use writer to prevent System.out/err to be polluted with problems
StringWriter writer = new StringWriter();
CompilationTask task =
compiler.getTask(writer, manager, diagnosticListener, options, null, units);
Boolean result = task.call();
return result.booleanValue();
}
public static void main(String... args) throws Throwable {
String testSrcDir = System.getProperty("test.src");
String testClassDir = System.getProperty("test.classes");
String self = T6361619.class.getName();
JavacTool tool = JavacTool.create();
final PrintWriter out = new PrintWriter(System.err, true);
Iterable<String> flags =
Arrays.asList(
"-processorpath", testClassDir,
"-processor", self,
"-d", ".");
DiagnosticListener<JavaFileObject> dl =
new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic<? extends JavaFileObject> m) {
out.println(m);
}
};
StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, null);
Iterable<? extends JavaFileObject> f =
fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrcDir, self + ".java")));
JavacTask task = tool.getTask(out, fm, dl, flags, null, f);
MyTaskListener tl = new MyTaskListener(task);
task.setTaskListener(tl);
// should complete, without exceptions
task.call();
}
public static boolean compile(String[] args, File episode) throws Exception {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager =
compiler.getStandardFileManager(diagnostics, null, null);
JavacOptions options = JavacOptions.parse(compiler, fileManager, args);
List<String> unrecognizedOptions = options.getUnrecognizedOptions();
if (!unrecognizedOptions.isEmpty())
Logger.getLogger(SchemaGenerator.class.getName())
.log(Level.WARNING, "Unrecognized options found: {0}", unrecognizedOptions);
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(options.getFiles());
JavaCompiler.CompilationTask task =
compiler.getTask(
null,
fileManager,
diagnostics,
options.getRecognizedOptions(),
options.getClassNames(),
compilationUnits);
com.sun.tools.internal.jxc.ap.SchemaGenerator r =
new com.sun.tools.internal.jxc.ap.SchemaGenerator();
if (episode != null) r.setEpisodeFile(episode);
task.setProcessors(Collections.singleton(r));
return task.call();
}
public static void compileTree(JavaCompiler compiler, List<String> options, File targetFolder) {
StandardJavaFileManager manager =
compiler.getStandardFileManager(null, Locale.getDefault(), Charset.defaultCharset());
// create new list containing inputfile
List<File> files = new ArrayList<File>();
findFilesUnder(targetFolder, files);
Iterable<? extends JavaFileObject> units = manager.getJavaFileObjectsFromFiles(files);
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
options.add("-d");
options.add(_tmpBinFolderName);
options.add("-s");
options.add(_tmpGenFolderName);
options.add("-cp");
options.add(
_tmpSrcFolderName
+ File.pathSeparator
+ _tmpGenFolderName
+ File.pathSeparator
+ _processorJarPath);
options.add("-processorpath");
options.add(_processorJarPath);
options.add("-XprintRounds");
CompilationTask task = compiler.getTask(printWriter, manager, null, options, null, units);
Boolean result = task.call();
if (!result.booleanValue()) {
String errorOutput = stringWriter.getBuffer().toString();
System.err.println("Compilation failed: " + errorOutput);
junit.framework.TestCase.assertTrue("Compilation failed : " + errorOutput, false);
}
}
public static Map<Lang, Result> convertFromFiles(
ClassLoader loader, List<Lang> lang, String file, String fqn, String method)
throws Exception {
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<>();
StandardJavaFileManager manager = javac.getStandardFileManager(diagnostics, locale, charset);
Iterable<? extends JavaFileObject> fileObjects = manager.getJavaFileObjects(file);
StringWriter out = new StringWriter();
JavaCompiler.CompilationTask task =
javac.getTask(
out,
manager,
diagnostics,
Collections.<String>emptyList(),
Collections.<String>emptyList(),
fileObjects);
task.setLocale(locale);
ConvertingProcessor processor = new ConvertingProcessor(lang, fqn, method);
task.setProcessors(Collections.<Processor>singletonList(processor));
if (task.call()) {
return processor.getResults();
} else {
StringWriter message = new StringWriter();
PrintWriter writer = new PrintWriter(message);
writer.append("Compilation of ").append(file).println(" failed:");
for (Diagnostic<? extends JavaFileObject> diagnostic : diagnostics.getDiagnostics()) {
writer.append(diagnostic.getMessage(locale));
}
writer.println("console:");
writer.append(out.getBuffer());
throw new Exception(message.toString());
}
}
public static void compileJavaFiles(
@NotNull Collection<File> files, List<String> options, @Nullable File javaErrorFile)
throws IOException {
JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
DiagnosticCollector<JavaFileObject> diagnosticCollector =
new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager =
javaCompiler.getStandardFileManager(
diagnosticCollector, Locale.ENGLISH, Charset.forName("utf-8"));
try {
Iterable<? extends JavaFileObject> javaFileObjectsFromFiles =
fileManager.getJavaFileObjectsFromFiles(files);
JavaCompiler.CompilationTask task =
javaCompiler.getTask(
new StringWriter(), // do not write to System.err
fileManager,
diagnosticCollector,
options,
null,
javaFileObjectsFromFiles);
Boolean success = task.call(); // do NOT inline this variable, call() should complete before
// errorsToString()
if (javaErrorFile == null || !javaErrorFile.exists()) {
Assert.assertTrue(errorsToString(diagnosticCollector, true), success);
} else {
assertEqualsToFile(javaErrorFile, errorsToString(diagnosticCollector, false));
}
} finally {
fileManager.close();
}
}
private void compile(final File f) throws IOException {
// set up compiler
final JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
final DiagnosticCollector<JavaFileObject> diagnostics =
new DiagnosticCollector<JavaFileObject>();
final StandardJavaFileManager fileManager =
compiler.getStandardFileManager(diagnostics, null, null);
final Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(Arrays.asList(f));
// compile generated source
// (switch off annotation processing: no need to create Log4j2Plugins.dat)
final List<String> options = Arrays.asList("-proc:none");
compiler.getTask(null, fileManager, diagnostics, options, null, compilationUnits).call();
// check we don't have any compilation errors
final List<String> errors = new ArrayList<String>();
for (final Diagnostic<? extends JavaFileObject> diagnostic : diagnostics.getDiagnostics()) {
if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
errors.add(
String.format("Compile error: %s%n", diagnostic.getMessage(Locale.getDefault())));
}
}
fileManager.close();
assertTrue(errors.toString(), errors.isEmpty());
}
/**
* @author ZhangXiang
* @param args 2011-4-7
* @throws NoSuchMethodException
* @throws InvocationTargetException
* @throws SecurityException
* @throws IllegalArgumentException
*/
public static void main(String[] args)
throws IllegalArgumentException, SecurityException, InvocationTargetException,
NoSuchMethodException {
StringBuilder classStr = new StringBuilder("package dyclass;public class Foo{");
classStr.append("public void test(){");
classStr.append("System.out.println(\"Foo2\");}}");
JavaCompiler jc = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = jc.getStandardFileManager(null, null, null);
Location location = StandardLocation.CLASS_OUTPUT;
File[] outputs = new File[] {new File("D:/CodeProject/ToxinD/test-export/target/classes")};
try {
fileManager.setLocation(location, Arrays.asList(outputs));
} catch (IOException e) {
e.printStackTrace();
}
JavaFileObject jfo = new JavaSourceFromString("dyclass.Foo", classStr.toString());
JavaFileObject[] jfos = new JavaFileObject[] {jfo};
Iterable<? extends JavaFileObject> compilationUnits = Arrays.asList(jfos);
boolean b = jc.getTask(null, fileManager, null, null, null, compilationUnits).call();
if (b) { // 如果编译成功
try {
Object c = Class.forName("dyclass.Foo").newInstance();
Class.forName("dyclass.Foo").getMethod("test").invoke(c);
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) throws Exception {
String rt = "\r\n";
String src =
"package com.bjsxt.proxy;"
+ rt
+ "public class TankTimeProxy implements Moveable {"
+ rt
+ " public TankTimeProxy(Moveable t) {"
+ rt
+ " super();"
+ rt
+ " this.t = t;"
+ rt
+ " }"
+ rt
+ " Moveable t;"
+ rt
+ " @Override"
+ rt
+ " public void move() {"
+ rt
+ " long start = System.currentTimeMillis();"
+ rt
+ " System.out.println(\"starttime:\" + start);"
+ rt
+ " t.move();"
+ rt
+ " long end = System.currentTimeMillis();"
+ rt
+ " System.out.println(\"time:\" + (end-start));"
+ rt
+ " }"
+ rt
+ "}";
String fileName = System.getProperty("user.dir") + "/src/com/bjsxt/proxy/TankTimeProxy.java";
File f = new File(fileName);
FileWriter fw = new FileWriter(f);
fw.write(src);
fw.flush();
fw.close();
// compile
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileMgr = compiler.getStandardFileManager(null, null, null);
Iterable units = fileMgr.getJavaFileObjects(fileName);
CompilationTask t = compiler.getTask(null, fileMgr, null, null, null, units);
t.call();
fileMgr.close();
// load into memory and create an instance
URL[] urls = new URL[] {new URL("file:/" + System.getProperty("user.dir") + "/src")};
URLClassLoader ul = new URLClassLoader(urls);
Class c = ul.loadClass("com.bjsxt.proxy.TankTimeProxy");
System.out.println(c);
Constructor ctr = c.getConstructor(Moveable.class);
Moveable m = (Moveable) ctr.newInstance(new Tank());
m.move();
}
public List<Diagnostic<? extends JavaFileObject>> doCompile() {
List<File> list = new LinkedList<File>();
// Set<File> sourceFolders = new HashSet<File>();
//
//
// for ( String packageName : model.getAllPackageNames() ) {
// sourceFolders.add(
// new File( getXjcDir().getPath() + File.separator +
// packageName.replace(".", File.separator) )
// );
// sourceFolders.add(
// new File( getJavaDir().getPath() + File.separator +
// packageName.replace(".", File.separator) )
// );
// }
//
// for ( File f : sourceFolders ) {
// System.out.println( "************** COMPILER USING SRC FOLDERS AS " + f.getPath()
// );
// }
//
// sourceFolders.add(
// new File( getXjcDir().getPath() + File.separator +
// "org.w3._2001.xmlschema".replace(".", File.separator) )
// );
//
//
// for ( File folder : sourceFolders ) {
// if ( folder.exists() ) {
// list.addAll( Arrays.asList( folder.listFiles( (FilenameFilter) new
// WildcardFileFilter( "*.java" ) ) ) );
// }
// }
explore(getJavaDir(), list);
explore(getXjcDir(), list);
// for ( File f : list ) {
// System.out.println( "************** COMPILER USING SRC FILE AS " + f.getPath() );
// }
JavaCompiler jc = ToolProvider.getSystemJavaCompiler();
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager = jc.getStandardFileManager(diagnostics, null, null);
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(list);
List<String> jcOpts = Arrays.asList("-d", getBinDir().getPath());
JavaCompiler.CompilationTask task =
jc.getTask(null, fileManager, diagnostics, jcOpts, null, compilationUnits);
task.call();
copyMetaInfResources();
return diagnostics.getDiagnostics();
}
private boolean compile(String path) throws Exception {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
DiagnosticCollector<JavaFileObject> diags = new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fm = compiler.getStandardFileManager(diags, null, null);
JavaCompiler.CompilationTask task =
compiler.getTask(
null, fm, null, null, null, fm.getJavaFileObjects(new File(res(path).toURI())));
task.setProcessors(Arrays.asList(new AnnotationProcessor()));
return task.call();
}
public static void main(String... args) throws IOException {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
try (StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null)) {
JavacTask task =
(JavacTask)
compiler.getTask(
null, fileManager, null, null, null, fileManager.getJavaFileObjects(args));
task.parse().forEach(cu -> cu.accept(new SampleVisitor(), null));
}
}
public static boolean compileFiles(List<String> sourceFiles) throws IOException {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromStrings(sourceFiles);
JavaCompiler.CompilationTask task =
compiler.getTask(null, fileManager, null, null, null, compilationUnits);
boolean success = task.call();
fileManager.close();
return success;
}
private JavaCompiler.CompilationTask makeCompilationTask(String... files) throws IOException {
JavaCompiler compiler = BazelJavaCompiler.newInstance();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
fileManager.setLocation(
StandardLocation.CLASS_PATH,
Arrays.asList(new File("third_party/ijar/test/interface_ijar_testlib.jar")));
fileManager.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(getTmpDir()));
diagnostics = new DiagnosticCollector<JavaFileObject>();
return compiler.getTask(
null,
fileManager,
diagnostics,
Arrays.asList("-Xlint:deprecation"), // used for deprecation tests
null,
fileManager.getJavaFileObjects(files));
}
@Override
public boolean isSameFile(FileObject a, FileObject b) {
if (a instanceof FileVirtualObject && b instanceof FileVirtualObject
|| a instanceof Output && b instanceof Output) {
return a.equals(b);
}
return myStandardFileManager.isSameFile(a, b);
}
/**
* Compiles the source code using the systems java compiler
*
* @param source
* @return true -> compiling worked flawlessly
*/
private static String compile(JavaFileObject... source) {
final ArrayList<String> options = new ArrayList<String>();
if (classpath != null) {
options.add("-classpath");
options.add(System.getProperty("java.class.path") + classpath);
}
if (outputdir != null) {
options.add("-d");
options.add(outputdir);
}
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
/**
* Retrieving the standard file manager from compiler object, which is used to provide basic
* building block for customizing how a compiler reads and writes to files.
*
* <p>The same file manager can be reopened for another compiler task. Thus we reduce the
* overhead of scanning through file system and jar files each time
*/
StandardJavaFileManager stdFileManager =
compiler.getStandardFileManager(null, Locale.getDefault(), null);
final JavaCompiler.CompilationTask task =
compiler.getTask(null, stdFileManager, diagnostics, options, null, Arrays.asList(source));
boolean result = task.call();
String error = null;
if (!result) {
error = "Compilation failed, see log for details";
for (@SuppressWarnings("rawtypes") Diagnostic diagnostic : diagnostics.getDiagnostics()) {
Logger.getInstance()
.log(
"de.~.vm.Javac.compile(JavaFileObject...)",
Logger.DEBUG,
"Error on line %d in %s" + diagnostic.getLineNumber() + diagnostic);
}
}
try {
stdFileManager.close();
} catch (IOException e) {
e.printStackTrace();
}
return error;
}
void run() throws IOException {
JavacTool tool = (JavacTool) ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
File classes = new File("classes");
classes.mkdirs();
File extraClasses = new File("extraClasses");
extraClasses.mkdirs();
System.out.println("compiling classes to extraClasses");
{ // setup class in extraClasses
fm.setLocation(StandardLocation.CLASS_OUTPUT, Collections.singleton(extraClasses));
List<? extends JavaFileObject> files =
Arrays.asList(
new MemFile("AnnoProc.java", annoProc), new MemFile("Callback.java", callback));
JavacTask task = tool.getTask(null, fm, null, null, null, files);
check(task.call());
}
System.out.println("compiling dummy to classes with anno processor");
{ // use that class in a TaskListener after processing has completed
PrintStream prev = System.out;
String out;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try (PrintStream ps = new PrintStream(baos)) {
System.setOut(ps);
File testClasses = new File(System.getProperty("test.classes"));
fm.setLocation(StandardLocation.CLASS_OUTPUT, Collections.singleton(classes));
fm.setLocation(
StandardLocation.ANNOTATION_PROCESSOR_PATH, Arrays.asList(extraClasses, testClasses));
List<? extends JavaFileObject> files =
Arrays.asList(new MemFile("my://dummy", "class Dummy { }"));
List<String> options = Arrays.asList("-processor", "AnnoProc");
JavacTask task = tool.getTask(null, fm, null, options, null, files);
task.setTaskListener(this);
check(task.call());
} finally {
System.setOut(prev);
out = baos.toString();
if (!out.isEmpty()) System.out.println(out);
}
check(out.contains("AnnoProc$1: run()"));
check(out.contains("Callback: run()"));
}
}
/**
* Returns an empty processor iterator if no processors are on the relevant path, otherwise if
* processors are present, logs an error. Called when a service loader is unavailable for some
* reason, either because a service loader class cannot be found or because a security policy
* prevents class loaders from being created.
*
* @param key The resource key to use to log an error message
* @param e If non-null, pass this exception to Abort
*/
private Iterator<Processor> handleServiceLoaderUnavailability(String key, Exception e) {
JavaFileManager fileManager = context.get(JavaFileManager.class);
if (fileManager instanceof JavacFileManager) {
StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;
Iterable<? extends File> workingPath =
fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)
? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)
: standardFileManager.getLocation(CLASS_PATH);
if (needClassLoader(options.get(PROCESSOR), workingPath)) handleException(key, e);
} else {
handleException(key, e);
}
java.util.List<Processor> pl = Collections.emptyList();
return pl.iterator();
}
@NotNull
public static NamespaceDescriptor compileJava(
@NotNull Collection<File> javaFiles, File tmpdir, Disposable disposable) throws IOException {
JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager =
javaCompiler.getStandardFileManager(null, Locale.ENGLISH, Charset.forName("utf-8"));
try {
Iterable<? extends JavaFileObject> javaFileObjectsFromFiles =
fileManager.getJavaFileObjectsFromFiles(javaFiles);
List<String> options =
Arrays.asList(
"-classpath",
"out/production/runtime"
+ File.pathSeparator
+ JetTestUtils.getAnnotationsJar().getPath(),
"-d",
tmpdir.getPath());
JavaCompiler.CompilationTask task =
javaCompiler.getTask(null, fileManager, null, options, null, javaFileObjectsFromFiles);
Assert.assertTrue(task.call());
} finally {
fileManager.close();
}
JetCoreEnvironment jetCoreEnvironment =
new JetCoreEnvironment(
disposable,
CompileCompilerDependenciesTest.compilerConfigurationForTests(
ConfigurationKind.JDK_ONLY,
TestJdkKind.MOCK_JDK,
JetTestUtils.getAnnotationsJar(),
tmpdir,
new File("out/production/runtime")));
InjectorForJavaSemanticServices injector =
new InjectorForJavaSemanticServices(
BuiltinsScopeExtensionMode.ALL, jetCoreEnvironment.getProject());
JavaDescriptorResolver javaDescriptorResolver = injector.getJavaDescriptorResolver();
return javaDescriptorResolver.resolveNamespace(
FqName.topLevel(Name.identifier("test")), DescriptorSearchRule.ERROR_IF_FOUND_IN_KOTLIN);
}
@Override
public Class<?> compile(URLClassLoader loader, String name, String src) throws Exception {
log.info("External compiler");
File classDir = new File(System.getProperty("oms.prj") + File.separatorChar + "dist");
File srcDir = new File(System.getProperty("java.io.tmpdir"));
File javaFile = new File(srcDir, name + ".java");
write(javaFile, src);
StandardJavaFileManager fm = jc.getStandardFileManager(null, null, null);
Iterable fileObjects = fm.getJavaFileObjects(javaFile);
String[] options = new String[] {"-d", classDir.toString()};
jc.getTask(null, null, null, Arrays.asList(options), null, fileObjects).call();
fm.close();
return loader.loadClass(name);
}
private void compile() {
try {
console.setText("Compiling...");
console.update(console.getGraphics());
File compileDir = new File(".");
// Util.saveToFile(codeEditor.getText(), "./CustomProtocol.java");
Util.saveToFile(codeEditor.getText(), "./" + this.protocolClass + ".java"); // by urueda
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
if (compiler == null) {
throw new RuntimeException("JDK required (running inside of JRE)");
}
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager =
compiler.getStandardFileManager(diagnostics, null, null);
try {
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(Util.getAllFiles(compileDir, ".java"));
ArrayList<String> options = new ArrayList<String>();
// options.add("-classpath \"" + System.getProperty("java.class.path") + "\\\"");
options.add("-classpath");
options.add(System.getProperty("java.class.path") + ";./monkey.jar");
// for(String cp : System.getProperty("java.class.path").split(";")){
// if(new File(cp).isDirectory())
// cp = cp + "\\";
// options.add(cp);
// }
JavaCompiler.CompilationTask task =
compiler.getTask(null, fileManager, diagnostics, options, null, compilationUnits);
if (!task.call()) {
throw new RuntimeException("compile errors" + diagnostics.getDiagnostics().toString());
}
} finally {
fileManager.close();
}
console.setText(console.getText() + "OK");
} catch (Throwable t) {
console.setText(console.getText() + "\n" + t.getMessage());
}
}
private static void compileAbilities(File javaDir, File classDir) {
if (!javaDir.exists()) return;
// Make ready a new list of files to compile.
List<File> toCompile = getSourceFilesToCompile(javaDir, classDir);
// No files to compile?
if (toCompile.isEmpty()) {
return;
}
// Notify the console.
Messenger.info("Compiling abilities: " + fileListToString(toCompile));
// Get the compiler
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
// Generate some JavaFileObjects
try {
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(toCompile);
// Include the MobArena.jar on the classpath, and set the destination folder.
List<String> options = Arrays.asList("-classpath", classpath, "-d", classDir.getPath());
// Set up the compilation task.
JavaCompiler.CompilationTask task =
compiler.getTask(null, fileManager, null, options, null, compilationUnits);
// Call the task.
task.call();
// And close the file manager.
fileManager.close();
} catch (Exception e) {
Messenger.severe("Compilation step failed...");
e.printStackTrace();
}
}
public static void main(String... args) {
try {
JavaCompiler javac = javax.tools.ToolProvider.getSystemJavaCompiler();
DiagnosticListener<JavaFileObject> dl =
new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic<? extends JavaFileObject> message) {
throw new NullPointerException(SILLY_BILLY);
}
};
StandardJavaFileManager fm = javac.getStandardFileManager(dl, null, null);
Iterable<? extends JavaFileObject> files =
fm.getJavaFileObjectsFromStrings(Arrays.asList("badfile.java"));
javac.getTask(null, fm, dl, null, null, files).call();
} catch (RuntimeException e) {
Throwable cause = e.getCause();
if (cause instanceof NullPointerException && cause.getMessage().equals(SILLY_BILLY)) return;
throw new Error("unexpected exception caught: " + e);
} catch (Throwable t) {
throw new Error("unexpected exception caught: " + t);
}
throw new Error("no exception caught");
}
public static void main(String[] args) {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
// 生成java文件
generateJavaClass();
try {
// 设置编译路径和文件输出路径
String cp = ReportConstants.CONTEXT_REAL_PATH + "/classes/";
List<String> list = new ArrayList<String>();
list.add("-d");
list.add(cp);
list.add("-cp");
list.add(cp);
Iterable sourcefiles = fileManager.getJavaFileObjects(JAVA_SOURCE_FILE);
compiler.getTask(null, fileManager, null, list, null, sourcefiles).call();
fileManager.close();
// 创建动态编译得到的DynamicObject类的实例
Class.forName(JAVA_CLASS_NAME).newInstance();
} catch (Exception ex) {
ex.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
// create the source
File sourceFile = new File("/root/workspace/SensorMiddleware/src/Hello.java");
FileWriter writer = new FileWriter(sourceFile);
writer.write(
"public class Hello{ \n"
+ " public void doit() { \n"
+ " System.out.println(\"Hello world\") ;\n"
+ " }\n"
+ "}");
writer.close();
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
fileManager.setLocation(
StandardLocation.CLASS_OUTPUT,
Arrays.asList(new File("/root/workspace/SensorMiddleware/build/classes")));
// Compile the file
compiler
.getTask(
null,
fileManager,
null,
null,
null,
fileManager.getJavaFileObjectsFromFiles(Arrays.asList(sourceFile)))
.call();
fileManager.close();
// delete the source file
// sourceFile.deleteOnExit();
runIt();
}
public JavaFileObject getJavaFileForInput(Location location, String className, Kind kind)
throws IOException {
// System.out.println("getJavaFileForInput(location=" + location + ", className=" + className +
// ", kind=" + kind + ')');
if (location == StandardLocation.CLASS_OUTPUT
&& buffers.containsKey(className)
&& kind == Kind.CLASS) {
final byte[] bytes = buffers.get(className).toByteArray();
return new SimpleJavaFileObject(URI.create(className), kind) {
public InputStream openInputStream() {
return new ByteArrayInputStream(bytes);
}
};
}
return fileManager.getJavaFileForInput(location, className, kind);
}
public JavaFileObject getJavaFileForOutput(
Location location, String className, Kind kind, FileObject sibling) throws IOException {
JavaFileObject object =
standardJavaFileManager.getJavaFileForOutput(location, className, kind, sibling);
if (kind == Kind.CLASS) {
className = className.replace("/", ".");
String enclosingClassName = className.split("\\$")[0];
String sourceFileName =
enclosingClassName.substring(enclosingClassName.lastIndexOf(".") + 1) + ".java";
Optional<PluginSource> source = result.findSource(sourceFileName);
Path binaryFile = Paths.get(object.toUri());
URL binaryURL = binaryFile.toUri().toURL();
PluginBinary binary = new PluginBinary(binaryURL, source, Optional.of(className));
result.getBinaries().add(binary);
}
return object;
}
void run() throws Exception {
javac = ToolProvider.getSystemJavaCompiler();
fm = javac.getStandardFileManager(null, null, null);
fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(new File(".")));
file =
new SimpleJavaFileObject(URI.create("Test.java"), JavaFileObject.Kind.SOURCE) {
@Override
public CharSequence getCharContent(boolean ignoreEncoding) {
return code;
}
};
test(Collections.<String>emptyList(), Main.Result.OK, EnumSet.noneOf(Message.class));
test(Arrays.asList("-Xdoclint:none"), Main.Result.OK, EnumSet.noneOf(Message.class));
test(
Arrays.asList(rawDiags, "-Xdoclint"),
Main.Result.ERROR,
EnumSet.of(Message.DL_ERR6, Message.DL_ERR9, Message.DL_WRN12));
test(
Arrays.asList(rawDiags, "-Xdoclint:all/public"),
Main.Result.OK,
EnumSet.of(Message.DL_WRN12));
test(
Arrays.asList(rawDiags, "-Xdoclint:syntax"),
Main.Result.ERROR,
EnumSet.of(Message.DL_ERR6, Message.DL_WRN12));
test(
Arrays.asList(rawDiags, "-Xdoclint:reference"),
Main.Result.ERROR,
EnumSet.of(Message.DL_ERR9));
test(
Arrays.asList(rawDiags, "-Xdoclint:badarg"),
Main.Result.CMDERR,
EnumSet.of(Message.OPT_BADARG));
if (errors > 0) throw new Exception(errors + " errors occurred");
}
/**
* @param infce 被代理类的接口
* @param h 代理类
* @return
* @throws Exception
*/
public static Object newProxyInstance(Class infce, InvocationHandler h) throws Exception {
String methodStr = "";
String rt = "\r\n";
// 利用反射得到infce的所有方法，并重新组装
Method[] methods = infce.getMethods();
for (Method m : methods) {
methodStr +=
" @Override"
+ rt
+ " public "
+ m.getReturnType()
+ " "
+ m.getName()
+ "() {"
+ rt
+ " try {"
+ rt
+ " Method md = "
+ infce.getName()
+ ".class.getMethod(\""
+ m.getName()
+ "\");"
+ rt
+ " h.invoke(this, md);"
+ rt
+ " }catch(Exception e) {e.printStackTrace();}"
+ rt
+ " }"
+ rt;
}
// 生成Java源文件
String srcCode =
"package proxy;"
+ rt
+ "import java.lang.reflect.Method;"
+ rt
+ "public class $Proxy1 implements "
+ infce.getName()
+ "{"
+ rt
+ " public $Proxy1(InvocationHandler h) {"
+ rt
+ " this.h = h;"
+ rt
+ " }"
+ rt
+ " InvocationHandler h;"
+ rt
+ methodStr
+ rt
+ "}";
String fileName = "$Proxy1.java";
File f = new File(fileName);
FileWriter fw = new FileWriter(f);
fw.write(srcCode);
fw.flush();
fw.close();
// 将Java文件编译成class文件
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileMgr = compiler.getStandardFileManager(null, null, null);
Iterable units = fileMgr.getJavaFileObjects(fileName);
JavaCompiler.CompilationTask t = compiler.getTask(null, fileMgr, null, null, null, units);
t.call();
fileMgr.close();
// 加载到内存，并实例化
URL[] urls = new URL[] {new URL("./")};
URLClassLoader ul = new URLClassLoader(urls);
Class c = ul.loadClass("$Proxy1");
Constructor ctr = c.getConstructor(InvocationHandler.class);
Object m = ctr.newInstance(h);
return m;
}