private static int getJavacServerHeapSize(CompileContext context) {
final JpsProject project = context.getProjectDescriptor().getProject();
final JpsJavaCompilerConfiguration config =
JpsJavaExtensionService.getInstance().getOrCreateCompilerConfiguration(project);
final JpsJavaCompilerOptions options = config.getCurrentCompilerOptions();
return options.MAXIMUM_HEAP_SIZE;
}
@Override
public void buildStarted(CompileContext context) {
final JpsProject project = context.getProjectDescriptor().getProject();
final JpsJavaCompilerConfiguration config =
JpsJavaExtensionService.getInstance().getCompilerConfiguration(project);
final String compilerId = config == null ? JavaCompilers.JAVAC_ID : config.getJavaCompilerId();
if (LOG.isDebugEnabled()) {
LOG.debug("Java compiler ID: " + compilerId);
}
final boolean isJavac =
JavaCompilers.JAVAC_ID.equalsIgnoreCase(compilerId)
|| JavaCompilers.JAVAC_API_ID.equalsIgnoreCase(compilerId);
final boolean isEclipse =
JavaCompilers.ECLIPSE_ID.equalsIgnoreCase(compilerId)
|| JavaCompilers.ECLIPSE_EMBEDDED_ID.equalsIgnoreCase(compilerId);
IS_ENABLED.set(context, isJavac || isEclipse);
String messageText = null;
if (isJavac) {
messageText =
"Using javac " + System.getProperty("java.version") + " to compile java sources";
} else if (isEclipse) {
messageText = "Using eclipse compiler to compile java sources";
}
COMPILER_VERSION_INFO.set(context, new AtomicReference<String>(messageText));
}
private static void loadCommonJavacOptions(CompileContext context) {
final List<String> options = new ArrayList<String>();
final List<String> vmOptions = new ArrayList<String>();
final JpsProject project = context.getProjectDescriptor().getProject();
final JpsJavaCompilerConfiguration compilerConfig =
JpsJavaExtensionService.getInstance().getOrCreateCompilerConfiguration(project);
final JpsJavaCompilerOptions compilerOptions = compilerConfig.getCurrentCompilerOptions();
if (compilerOptions.DEBUGGING_INFO) {
options.add("-g");
}
if (compilerOptions.DEPRECATION) {
options.add("-deprecation");
}
if (compilerOptions.GENERATE_NO_WARNINGS) {
options.add("-nowarn");
}
if (compilerOptions instanceof EclipseCompilerOptions) {
final EclipseCompilerOptions eclipseOptions = (EclipseCompilerOptions) compilerOptions;
if (eclipseOptions.PROCEED_ON_ERROR) {
options.add("-proceedOnError");
}
}
final String customArgs = compilerOptions.ADDITIONAL_OPTIONS_STRING;
if (customArgs != null) {
final StringTokenizer customOptsTokenizer = new StringTokenizer(customArgs, " \t\r\n");
boolean skip = false;
while (customOptsTokenizer.hasMoreTokens()) {
final String userOption = customOptsTokenizer.nextToken();
if (FILTERED_OPTIONS.contains(userOption)) {
skip = true;
continue;
}
if (!skip) {
if (!FILTERED_SINGLE_OPTIONS.contains(userOption)) {
if (userOption.startsWith("-J-")) {
vmOptions.add(userOption.substring("-J".length()));
} else {
options.add(userOption);
}
}
}
}
}
if (useEclipseCompiler(context)) {
for (String option : options) {
if (option.startsWith("-proceedOnError")) {
Utils.PROCEED_ON_ERROR_KEY.set(context, Boolean.TRUE);
break;
}
}
}
JAVAC_OPTIONS.set(context, options);
JAVAC_VM_OPTIONS.set(context, vmOptions);
}
private static boolean useEclipseCompiler(CompileContext context) {
if (!USE_EMBEDDED_JAVAC) {
return false;
}
JpsProject project = context.getProjectDescriptor().getProject();
final JpsJavaCompilerConfiguration configuration =
JpsJavaExtensionService.getInstance().getCompilerConfiguration(project);
final String compilerId = configuration != null ? configuration.getJavaCompilerId() : null;
return JavaCompilers.ECLIPSE_ID.equalsIgnoreCase(compilerId)
|| JavaCompilers.ECLIPSE_EMBEDDED_ID.equalsIgnoreCase(compilerId);
}
private static Map<File, Set<File>> buildOutputDirectoriesMap(
CompileContext context, ModuleChunk chunk) {
final Map<File, Set<File>> map = new THashMap<File, Set<File>>(FileUtil.FILE_HASHING_STRATEGY);
for (ModuleBuildTarget target : chunk.getTargets()) {
final File outputDir = target.getOutputDir();
if (outputDir == null) {
continue;
}
final Set<File> roots = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
for (JavaSourceRootDescriptor descriptor :
context.getProjectDescriptor().getBuildRootIndex().getTargetRoots(target, context)) {
roots.add(descriptor.root);
}
map.put(outputDir, roots);
}
return map;
}
private static int getCompilerSdkVersion(CompileContext context) {
final Integer cached = JAVA_COMPILER_VERSION_KEY.get(context);
if (cached != null) {
return cached;
}
int javaVersion = convertToNumber(SystemProperties.getJavaVersion());
if (!USE_EMBEDDED_JAVAC) {
// in case of external javac, run compiler from the newest jdk that is used in the project
for (JpsSdk<?> sdk : context.getProjectDescriptor().getProjectJavaSdks()) {
final String version = sdk.getVersionString();
final int ver = convertToNumber(version);
if (ver > javaVersion) {
javaVersion = ver;
}
}
}
JAVA_COMPILER_VERSION_KEY.set(context, javaVersion);
return javaVersion;
}
private static synchronized JavacServerClient ensureJavacServerLaunched(CompileContext context)
throws Exception {
final ExternalJavacDescriptor descriptor = ExternalJavacDescriptor.KEY.get(context);
if (descriptor != null) {
return descriptor.client;
}
// start server here
final int port = findFreePort();
final int heapSize = getJavacServerHeapSize(context);
// defaulting to the same jdk that used to run the build process
String javaHome = SystemProperties.getJavaHome();
int javaVersion = convertToNumber(SystemProperties.getJavaVersion());
for (JpsSdk<?> sdk : context.getProjectDescriptor().getProjectJavaSdks()) {
final String version = sdk.getVersionString();
final int ver = convertToNumber(version);
if (ver > javaVersion) {
javaVersion = ver;
javaHome = sdk.getHomePath();
}
}
final BaseOSProcessHandler processHandler =
JavacServerBootstrap.launchJavacServer(
javaHome, heapSize, port, Utils.getSystemRoot(), getCompilationVMOptions(context));
final JavacServerClient client = new JavacServerClient();
try {
client.connect("127.0.0.1", port);
} catch (Throwable ex) {
processHandler.destroyProcess();
throw new Exception("Failed to connect to external javac process: ", ex);
}
ExternalJavacDescriptor.KEY.set(context, new ExternalJavacDescriptor(processHandler, client));
return client;
}
public static void addCompilationOptions(
List<String> options,
CompileContext context,
ModuleChunk chunk,
@Nullable ProcessorConfigProfile profile) {
if (!isEncodingSet(options)) {
final CompilerEncodingConfiguration config =
context.getProjectDescriptor().getEncodingConfiguration();
final String encoding = config.getPreferredModuleChunkEncoding(chunk);
if (config.getAllModuleChunkEncodings(chunk).size() > 1) {
final StringBuilder msgBuilder = new StringBuilder();
msgBuilder.append("Multiple encodings set for module chunk ").append(chunk.getName());
if (encoding != null) {
msgBuilder.append("\n\"").append(encoding).append("\" will be used by compiler");
}
context.processMessage(
new CompilerMessage(BUILDER_NAME, BuildMessage.Kind.INFO, msgBuilder.toString()));
}
if (!StringUtil.isEmpty(encoding)) {
options.add("-encoding");
options.add(encoding);
}
}
final String langLevel = getLanguageLevel(chunk.getModules().iterator().next());
if (!StringUtil.isEmpty(langLevel)) {
options.add("-source");
options.add(langLevel);
}
JpsJavaCompilerConfiguration compilerConfiguration =
JpsJavaExtensionService.getInstance()
.getOrCreateCompilerConfiguration(context.getProjectDescriptor().getProject());
String bytecodeTarget = null;
int chunkSdkVersion = -1;
for (JpsModule module : chunk.getModules()) {
final JpsSdk<JpsDummyElement> sdk = module.getSdk(JpsJavaSdkType.INSTANCE);
if (sdk != null) {
final int moduleSdkVersion = convertToNumber(sdk.getVersionString());
if (moduleSdkVersion != 0 /*could determine the version*/
&& (chunkSdkVersion < 0 || chunkSdkVersion > moduleSdkVersion)) {
chunkSdkVersion = moduleSdkVersion;
}
}
final String moduleTarget = compilerConfiguration.getByteCodeTargetLevel(module.getName());
if (moduleTarget == null) {
continue;
}
if (bytecodeTarget == null) {
bytecodeTarget = moduleTarget;
} else {
if (moduleTarget.compareTo(bytecodeTarget) < 0) {
bytecodeTarget =
moduleTarget; // use the lower possible target among modules that form the chunk
}
}
}
if (bytecodeTarget != null) {
options.add("-target");
options.add(bytecodeTarget);
} else {
if (chunkSdkVersion > 0 && getCompilerSdkVersion(context) > chunkSdkVersion) {
// force lower bytecode target level to match the version of sdk assigned to this chunk
options.add("-target");
options.add("1." + chunkSdkVersion);
}
}
if (profile != null && profile.isEnabled()) {
// configuring annotation processing
if (!profile.isObtainProcessorsFromClasspath()) {
final String processorsPath = profile.getProcessorPath();
options.add("-processorpath");
options.add(
processorsPath == null ? "" : FileUtil.toSystemDependentName(processorsPath.trim()));
}
final Set<String> processors = profile.getProcessors();
if (!processors.isEmpty()) {
options.add("-processor");
options.add(StringUtil.join(processors, ","));
}
for (Map.Entry<String, String> optionEntry : profile.getProcessorOptions().entrySet()) {
options.add("-A" + optionEntry.getKey() + "=" + optionEntry.getValue());
}
final File srcOutput =
ProjectPaths.getAnnotationProcessorGeneratedSourcesOutputDir(
chunk.getModules().iterator().next(), chunk.containsTests(), profile);
if (srcOutput != null) {
srcOutput.mkdirs();
options.add("-s");
options.add(srcOutput.getPath());
}
} else {
options.add("-proc:none");
}
}
private boolean compileJava(
final CompileContext context,
ModuleChunk chunk,
Collection<File> files,
Collection<File> classpath,
Collection<File> platformCp,
Collection<File> sourcePath,
DiagnosticOutputConsumer diagnosticSink,
final OutputFileConsumer outputSink)
throws Exception {
final TasksCounter counter = new TasksCounter();
COUNTER_KEY.set(context, counter);
final JpsJavaExtensionService javaExt = JpsJavaExtensionService.getInstance();
final JpsJavaCompilerConfiguration compilerConfig =
javaExt.getCompilerConfiguration(context.getProjectDescriptor().getProject());
assert compilerConfig != null;
final Set<JpsModule> modules = chunk.getModules();
ProcessorConfigProfile profile = null;
if (modules.size() == 1) {
final JpsModule module = modules.iterator().next();
profile = compilerConfig.getAnnotationProcessingProfile(module);
} else {
// perform cycle-related validations
Pair<String, LanguageLevel> pair = null;
for (JpsModule module : modules) {
final LanguageLevel moduleLevel = javaExt.getLanguageLevel(module);
if (pair == null) {
pair = Pair.create(module.getName(), moduleLevel); // first value
} else {
if (!Comparing.equal(pair.getSecond(), moduleLevel)) {
final String message =
"Modules "
+ pair.getFirst()
+ " and "
+ module.getName()
+ " must have the same language level because of cyclic dependencies between them";
diagnosticSink.report(new PlainMessageDiagnostic(Diagnostic.Kind.ERROR, message));
return true;
}
}
}
// check that all chunk modules are excluded from annotation processing
for (JpsModule module : modules) {
final ProcessorConfigProfile prof = compilerConfig.getAnnotationProcessingProfile(module);
if (prof.isEnabled()) {
final String message =
"Annotation processing is not supported for module cycles. Please ensure that all modules from cycle ["
+ chunk.getName()
+ "] are excluded from annotation processing";
diagnosticSink.report(new PlainMessageDiagnostic(Diagnostic.Kind.ERROR, message));
return true;
}
}
}
final Map<File, Set<File>> outs = buildOutputDirectoriesMap(context, chunk);
final List<String> options = getCompilationOptions(context, chunk, profile);
final ClassProcessingConsumer classesConsumer =
new ClassProcessingConsumer(context, outputSink);
if (LOG.isDebugEnabled()) {
LOG.debug(
"Compiling chunk ["
+ chunk.getName()
+ "] with options: \""
+ StringUtil.join(options, " ")
+ "\"");
}
try {
final boolean rc;
if (USE_EMBEDDED_JAVAC) {
final boolean useEclipse = useEclipseCompiler(context);
rc =
JavacMain.compile(
options,
files,
classpath,
platformCp,
sourcePath,
outs,
diagnosticSink,
classesConsumer,
context.getCancelStatus(),
useEclipse);
} else {
final JavacServerClient client = ensureJavacServerLaunched(context);
final RequestFuture<JavacServerResponseHandler> future =
client.sendCompileRequest(
options,
files,
classpath,
platformCp,
sourcePath,
outs,
diagnosticSink,
classesConsumer);
while (!future.waitFor(100L, TimeUnit.MILLISECONDS)) {
if (context.getCancelStatus().isCanceled()) {
future.cancel(false);
}
}
rc = future.getMessageHandler().isTerminatedSuccessfully();
}
return rc;
} finally {
counter.await();
}
}
private ExitCode compile(
final CompileContext context,
ModuleChunk chunk,
DirtyFilesHolder<JavaSourceRootDescriptor, ModuleBuildTarget> dirtyFilesHolder,
Collection<File> files,
OutputConsumer outputConsumer)
throws Exception {
ExitCode exitCode = ExitCode.NOTHING_DONE;
final boolean hasSourcesToCompile = !files.isEmpty();
if (!hasSourcesToCompile && !dirtyFilesHolder.hasRemovedFiles()) {
return exitCode;
}
final ProjectDescriptor pd = context.getProjectDescriptor();
JavaBuilderUtil.ensureModuleHasJdk(
chunk.representativeTarget().getModule(), context, BUILDER_NAME);
final Collection<File> classpath =
ProjectPaths.getCompilationClasspath(chunk, false /*context.isProjectRebuild()*/);
final Collection<File> platformCp =
ProjectPaths.getPlatformCompilationClasspath(chunk, false /*context.isProjectRebuild()*/);
// begin compilation round
final DiagnosticSink diagnosticSink = new DiagnosticSink(context);
final Mappings delta = pd.dataManager.getMappings().createDelta();
final Callbacks.Backend mappingsCallback = delta.getCallback();
final OutputFilesSink outputSink =
new OutputFilesSink(context, outputConsumer, mappingsCallback, chunk.getName());
try {
if (hasSourcesToCompile) {
final AtomicReference<String> ref = COMPILER_VERSION_INFO.get(context);
final String versionInfo =
ref.getAndSet(null); // display compiler version info only once per compile session
if (versionInfo != null) {
LOG.info(versionInfo);
context.processMessage(new CompilerMessage("", BuildMessage.Kind.INFO, versionInfo));
}
exitCode = ExitCode.OK;
final Set<File> srcPath = new HashSet<File>();
final BuildRootIndex index = pd.getBuildRootIndex();
for (ModuleBuildTarget target : chunk.getTargets()) {
for (JavaSourceRootDescriptor rd : index.getTempTargetRoots(target, context)) {
srcPath.add(rd.root);
}
}
final String chunkName = chunk.getName();
context.processMessage(new ProgressMessage("Parsing java... [" + chunkName + "]"));
final int filesCount = files.size();
boolean compiledOk = true;
if (filesCount > 0) {
LOG.info(
"Compiling "
+ filesCount
+ " java files; module: "
+ chunkName
+ (chunk.containsTests() ? " (tests)" : ""));
if (LOG.isDebugEnabled()) {
for (File file : files) {
LOG.debug("Compiling " + file.getPath());
}
LOG.debug(" classpath for " + chunkName + ":");
for (File file : classpath) {
LOG.debug(" " + file.getAbsolutePath());
}
LOG.debug(" platform classpath for " + chunkName + ":");
for (File file : platformCp) {
LOG.debug(" " + file.getAbsolutePath());
}
}
compiledOk =
compileJava(
context,
chunk,
files,
classpath,
platformCp,
srcPath,
diagnosticSink,
outputSink);
}
context.checkCanceled();
if (!compiledOk && diagnosticSink.getErrorCount() == 0) {
diagnosticSink.report(
new PlainMessageDiagnostic(
Diagnostic.Kind.ERROR, "Compilation failed: internal java compiler error"));
}
if (!Utils.PROCEED_ON_ERROR_KEY.get(context, Boolean.FALSE)
&& diagnosticSink.getErrorCount() > 0) {
if (!compiledOk) {
diagnosticSink.report(
new PlainMessageDiagnostic(
Diagnostic.Kind.OTHER,
"Errors occurred while compiling module '" + chunkName + "'"));
}
throw new ProjectBuildException(
"Compilation failed: errors: "
+ diagnosticSink.getErrorCount()
+ "; warnings: "
+ diagnosticSink.getWarningCount());
}
}
} finally {
if (JavaBuilderUtil.updateMappings(
context, delta, dirtyFilesHolder, chunk, files, outputSink.getSuccessfullyCompiled())) {
exitCode = ExitCode.ADDITIONAL_PASS_REQUIRED;
}
}
return exitCode;
}