public void recordTimestamp(String className, ClassLoader loader) {
if (!(loader instanceof ModuleClassLoader)) {
return;
}
Map<String, Long> stamps = null;
final ModuleClassLoader moduleClassLoader = (ModuleClassLoader) loader;
final ModuleIdentifier moduleIdentifier = moduleClassLoader.getModule().getIdentifier();
if (loadersByModuleIdentifier.containsKey(moduleIdentifier)) {
final ModuleClassLoader oldLoader = loadersByModuleIdentifier.get(moduleIdentifier);
if (oldLoader != moduleClassLoader) {
loadersByModuleIdentifier.put(moduleIdentifier, moduleClassLoader);
timestamps.put(moduleClassLoader, stamps = new ConcurrentHashMap<String, Long>());
} else {
stamps = timestamps.get(moduleClassLoader);
}
} else {
loadersByModuleIdentifier.put(moduleIdentifier, moduleClassLoader);
timestamps.put(moduleClassLoader, stamps = new ConcurrentHashMap<String, Long>());
}
final URL file = loader.getResource(className.replace(".", "/") + ".class");
className = className.replace("/", ".");
if (file != null) {
URLConnection connection = null;
try {
connection = file.openConnection();
stamps.put(className, connection.getLastModified());
} catch (IOException e) {
e.printStackTrace();
}
}
}
@Test
public void testAccessFromCamelComponentModule() throws Exception {
ModuleLoader moduleLoader = Module.getCallerModuleLoader();
ModuleIdentifier modid = ModuleIdentifier.create("org.apache.camel.component");
ModuleClassLoader classLoader = moduleLoader.loadModule(modid).getClassLoader();
URL resurl = classLoader.getResource("META-INF/cxf/cxf.xml");
Assert.assertNotNull("URL not null", resurl);
}
private List<ResourceLoaderInfo> doGetResourceLoaders(final Module module) {
final ModuleClassLoader classLoader = module.getClassLoaderPrivate();
final ResourceLoader[] loaders = classLoader.getResourceLoaders();
final ArrayList<ResourceLoaderInfo> list = new ArrayList<ResourceLoaderInfo>(loaders.length);
for (ResourceLoader resourceLoader : loaders) {
list.add(
new ResourceLoaderInfo(
resourceLoader.getClass().getName(),
new ArrayList<String>(resourceLoader.getPaths())));
}
return list;
}
/** {@inheritDoc} */
@Override
public void deploy(final DeploymentPhaseContext phaseContext)
throws DeploymentUnitProcessingException {
final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
final Module module = deploymentUnit.getAttachment(Attachments.MODULE);
final ServicesAttachment servicesAttachment =
deploymentUnit.getAttachment(Attachments.SERVICES);
if (module != null && servicesAttachment != null) {
final ModuleClassLoader classLoader = module.getClassLoader();
final List<String> driverNames =
servicesAttachment.getServiceImplementations(Driver.class.getName());
for (String driverClassName : driverNames) {
try {
final Class<? extends Driver> driverClass =
classLoader.loadClass(driverClassName).asSubclass(Driver.class);
final Constructor<? extends Driver> constructor = driverClass.getConstructor();
final Driver driver = constructor.newInstance();
final int majorVersion = driver.getMajorVersion();
final int minorVersion = driver.getMinorVersion();
final boolean compliant = driver.jdbcCompliant();
if (compliant) {
log.infof(
"Deploying JDBC-compliant driver %s (version %d.%d)",
driverClass, Integer.valueOf(majorVersion), Integer.valueOf(minorVersion));
} else {
log.infof(
"Deploying non-JDBC-compliant driver %s (version %d.%d)",
driverClass, Integer.valueOf(majorVersion), Integer.valueOf(minorVersion));
}
String driverName = deploymentUnit.getName();
InstalledDriver driverMetadata =
new InstalledDriver(
driverName, driverClass.getName(), null, majorVersion, minorVersion, compliant);
DriverService driverService = new DriverService(driverMetadata, driver);
phaseContext
.getServiceTarget()
.addService(
ServiceName.JBOSS.append("jdbc-driver", driverName.replaceAll(".", "_")),
driverService)
.addDependency(
ConnectorServices.JDBC_DRIVER_REGISTRY_SERVICE,
DriverRegistry.class,
driverService.getDriverRegistryServiceInjector())
.setInitialMode(Mode.ACTIVE)
.install();
} catch (Exception e) {
log.warnf("Unable to instantiate driver class \"%s\": %s", driverClassName, e);
}
}
}
}
static {
final Enumeration<URL> resources;
String jarName = "(unknown)";
String versionString = "(unknown)";
try {
final ClassLoader classLoader = Main.class.getClassLoader();
resources =
classLoader == null
? ModuleClassLoader.getSystemResources("META-INF/MANIFEST.MF")
: classLoader.getResources("META-INF/MANIFEST.MF");
while (resources.hasMoreElements()) {
final URL url = resources.nextElement();
try {
final InputStream stream = url.openStream();
if (stream != null)
try {
final Manifest manifest = new Manifest(stream);
final Attributes mainAttributes = manifest.getMainAttributes();
if (mainAttributes != null
&& "JBoss Modules".equals(mainAttributes.getValue("Specification-Title"))) {
jarName = mainAttributes.getValue("Jar-Name");
versionString = mainAttributes.getValue("Jar-Version");
}
} finally {
StreamUtil.safeClose(stream);
}
} catch (IOException ignored) {
}
}
} catch (IOException ignored) {
}
JAR_NAME = jarName;
VERSION_STRING = versionString;
}
@Override
public Class<?> loadClassLocal(String className, boolean resolve) {
List<XPackageRequirement> matchingPatterns = findMatchingPatterns(className);
if (matchingPatterns.isEmpty()) return null;
String pathName = className.replace('.', '/') + ".class";
Module module = findModuleDynamically(pathName, matchingPatterns);
if (module == null) return null;
ModuleClassLoader moduleClassLoader = module.getClassLoader();
try {
return moduleClassLoader.loadClass(className);
} catch (ClassNotFoundException ex) {
log.tracef("Cannot load class [%s] from module: %s", className, module);
return null;
}
}
@Test
public void testServiceLoaderFails() throws Exception {
// The {@link ModularURLStreamHandlerFactory} follows a pattern similar to this.
SystemBundleState systemBundle = getBundleManager().getSystemBundle();
ModuleManager plugin = getFrameworkState().getModuleManager();
Module frameworkModule = plugin.loadModule(systemBundle.getModuleIdentifier());
assertNotNull("Framework module not null", frameworkModule);
// Test resource access
ModuleClassLoader classLoader = frameworkModule.getClassLoader();
URL resource =
classLoader.getResource("META-INF/services/" + URLStreamHandlerFactory.class.getName());
assertNull("Resource URL null", resource);
// Test ServiceLoader access
Iterator<URLStreamHandlerFactory> iterator =
frameworkModule.loadService(URLStreamHandlerFactory.class).iterator();
assertFalse("No more URLStreamHandlerFactory", iterator.hasNext());
}
public Set<Class> getUpdatedClasses(
final String deploymentName, Map<String, Long> updatedClasses) {
final ModuleIdentifier moduleId = getModuleIdentifier(deploymentName);
final ModuleClassLoader loader = loadersByModuleIdentifier.get(moduleId);
if (loader == null) {
return Collections.emptySet();
}
final Map<String, Long> timestamps = this.timestamps.get(loader);
final Set<Class> ret = new HashSet<Class>();
for (Map.Entry<String, Long> entry : updatedClasses.entrySet()) {
if (timestamps.containsKey(entry.getKey())
&& timestamps.get(entry.getKey()) < entry.getValue()) {
try {
ret.add(loader.loadClass(entry.getKey()));
timestamps.put(entry.getKey(), entry.getValue());
} catch (ClassNotFoundException e) {
System.err.println("Could not load class " + entry);
}
}
}
return ret;
}
@Override
public void run() {
/*
This resolves a know deadlock that can occur if one thread is in the process of defining a package as part of
defining a class, and another thread is defining the system package that can result in loading a class. One holds
the Package.pkgs lock and one holds the Classloader lock.
*/
Package.getPackages();
final Queue<LoadRequest> queue = LoaderThreadHolder.REQUEST_QUEUE;
for (; ; ) {
try {
LoadRequest request;
synchronized (queue) {
while ((request = queue.poll()) == null) {
queue.wait();
}
}
final ModuleClassLoader loader = request.requester;
Class<?> result = null;
synchronized (loader) {
try {
result = loader.performLoadClass(request.className, request.exportsOnly);
} finally {
// no matter what, the requester MUST be notified
request.result = result;
request.done = true;
loader.notifyAll();
}
}
} catch (Throwable t) {
// ignore
}
}
}
private static StandaloneServer create(
ModuleLoader moduleLoader, File jbossHomeDir, String bundlePath, String[] cmdargs) {
setupBundlePath(bundlePath);
setupVfsModule(moduleLoader);
setupLoggingSystem(moduleLoader);
// Embedded Server wants this, too. Seems redundant, but supply it.
WildFlySecurityManager.setPropertyPrivileged(
SYSPROP_KEY_JBOSS_HOME_DIR, jbossHomeDir.getAbsolutePath());
// Load the Embedded Server Module
final Module embeddedModule;
try {
embeddedModule = moduleLoader.loadModule(ModuleIdentifier.create(MODULE_ID_EMBEDDED));
} catch (final ModuleLoadException mle) {
throw EmbeddedLogger.ROOT_LOGGER.moduleLoaderError(mle, MODULE_ID_EMBEDDED, moduleLoader);
}
// Load the Embedded Server Factory via the modular environment
final ModuleClassLoader embeddedModuleCL = embeddedModule.getClassLoader();
final Class<?> embeddedServerFactoryClass;
final Class<?> standaloneServerClass;
try {
embeddedServerFactoryClass =
embeddedModuleCL.loadClass(EmbeddedStandAloneServerFactory.class.getName());
standaloneServerClass = embeddedModuleCL.loadClass(StandaloneServer.class.getName());
} catch (final ClassNotFoundException cnfe) {
throw EmbeddedLogger.ROOT_LOGGER.cannotLoadEmbeddedServerFactory(
cnfe, EmbeddedStandAloneServerFactory.class.getName());
}
// Get a handle to the method which will create the server
final Method createServerMethod;
try {
createServerMethod =
embeddedServerFactoryClass.getMethod(
"create",
File.class,
ModuleLoader.class,
Properties.class,
Map.class,
String[].class);
} catch (final NoSuchMethodException nsme) {
throw EmbeddedLogger.ROOT_LOGGER.cannotGetReflectiveMethod(
nsme, "create", embeddedServerFactoryClass.getName());
}
// Create the server
Object standaloneServerImpl;
try {
Properties sysprops = WildFlySecurityManager.getSystemPropertiesPrivileged();
Map<String, String> sysenv = WildFlySecurityManager.getSystemEnvironmentPrivileged();
String[] args = cmdargs != null ? cmdargs : new String[0];
standaloneServerImpl =
createServerMethod.invoke(null, jbossHomeDir, moduleLoader, sysprops, sysenv, args);
} catch (final InvocationTargetException ite) {
throw EmbeddedLogger.ROOT_LOGGER.cannotCreateStandaloneServer(
ite.getCause(), createServerMethod);
} catch (final IllegalAccessException iae) {
throw EmbeddedLogger.ROOT_LOGGER.cannotCreateStandaloneServer(iae, createServerMethod);
}
return new StandaloneServerIndirection(standaloneServerClass, standaloneServerImpl);
}
@Override
public Iterable<JavaFileObject> list(
Location location, String packageName, Set<Kind> kinds, boolean recurse)
throws IOException {
if (location == StandardLocation.PLATFORM_CLASS_PATH) {
return standardJavaFileManager.list(location, packageName, kinds, recurse);
}
List<JavaFileObject> ret = new ArrayList<>();
if (kinds.contains(Kind.CLASS) && location.equals(StandardLocation.CLASS_PATH)) {
if (classLoader instanceof ModuleClassLoader) {
ModuleClassLoader mcl = (ModuleClassLoader) classLoader;
final String packageWithSlashes = packageName.replace(".", "/");
try {
Iterator<Resource> resources =
mcl.getModule()
.iterateResources(
new PathFilter() {
@Override
public boolean accept(String path) {
if (recurse) {
return path.startsWith(packageWithSlashes);
} else {
return path.equals(packageWithSlashes);
}
}
});
while (resources.hasNext()) {
Resource res = resources.next();
if (!res.getName().endsWith(".class")) {
continue;
}
String binaryName =
res.getName().replace("/", ".").substring(0, res.getName().length() - 6);
try {
ret.add(
new ZipJavaFileObject(
org.fakereplace.util.FileReader.readFileBytes(res.openStream()),
binaryName,
res.getURL().toURI()));
} catch (URISyntaxException e) {
e.printStackTrace();
}
}
} catch (ModuleLoadException e) {
e.printStackTrace();
}
} else {
URL res = classLoader.getResource(packageName.replace(".", "/"));
if (res != null) {
if (res.getProtocol().equals("file")) {
Path dirPath = Paths.get(res.getFile());
listDir(packageName, dirPath, recurse, ret);
} else if (res.getProtocol().equals("jar")) {
JarURLConnection connection = (JarURLConnection) res.openConnection();
Enumeration<JarEntry> entryEnum = connection.getJarFile().entries();
while (entryEnum.hasMoreElements()) {
JarEntry entry = entryEnum.nextElement();
String name = entry.getName();
if (name.endsWith(".class") && !entry.isDirectory()) {
if (name.startsWith(packageName.replace(".", "/"))) {
String rem = name.substring(packageName.length());
if (rem.startsWith("/")) {
rem = rem.substring(1);
}
if (!recurse) {
if (rem.contains("/")) {
continue;
}
}
String binaryName =
entry
.getName()
.replace("/", ".")
.substring(0, entry.getName().length() - 6);
try {
URI uri = new URI(res.toExternalForm() + "/" + rem);
ret.add(
new ZipJavaFileObject(
org.fakereplace.util.FileReader.readFileBytes(
uri.toURL().openStream()),
binaryName,
uri));
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
} else {
System.err.println(
"Could not find package "
+ packageName
+ " in "
+ classLoader
+ " unknown protocol "
+ res.getProtocol());
}
} else {
return standardJavaFileManager.list(location, packageName, kinds, recurse);
}
}
} else {
return standardJavaFileManager.list(location, packageName, kinds, recurse);
}
return ret;
}
