org.glassfish.tests.utils.junit.HK2JUnit5Extension Maven / Gradle / Ivy
/*
* Copyright (c) 2021, 2022 Contributors to the Eclipse Foundation
* Copyright (c) 2021 Eclipse Foundation and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.tests.utils.junit;
import com.sun.enterprise.glassfish.bootstrap.Constants;
import com.sun.enterprise.module.bootstrap.StartupContext;
import com.sun.enterprise.module.single.StaticModulesRegistry;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import org.glassfish.hk2.api.DynamicConfiguration;
import org.glassfish.hk2.api.DynamicConfigurationService;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.utilities.DescriptorImpl;
import org.glassfish.hk2.utilities.ServiceLocatorUtilities;
import org.glassfish.server.ServerEnvironmentImpl;
import org.glassfish.tests.utils.mock.MockGenerator;
import org.glassfish.tests.utils.mock.TestDocument;
import org.junit.jupiter.api.extension.AfterAllCallback;
import org.junit.jupiter.api.extension.AfterEachCallback;
import org.junit.jupiter.api.extension.BeforeAllCallback;
import org.junit.jupiter.api.extension.BeforeEachCallback;
import org.junit.jupiter.api.extension.Extension;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.ExtensionContext.Namespace;
import org.junit.jupiter.api.extension.TestInstancePostProcessor;
import org.jvnet.hk2.config.ConfigParser;
import org.jvnet.hk2.config.DomDocument;
import org.jvnet.hk2.config.Transactions;
import org.objectweb.asm.ClassReader;
import static java.util.Objects.requireNonNull;
import static org.glassfish.hk2.utilities.ServiceLocatorUtilities.addOneConstant;
import static org.glassfish.hk2.utilities.ServiceLocatorUtilities.addOneDescriptor;
import static org.glassfish.hk2.utilities.ServiceLocatorUtilities.createAndPopulateServiceLocator;
import static org.junit.jupiter.api.Assertions.assertNotNull;
/**
* This JUnit5 extension allows to use HK2 services in tests.
* You can also override methods in your own {@link Extension} and add features.
*
* Injectable services:
*
* @Inject {@link Logger} - named after the test.
* @Inject {@link StartupContext} - install root and instance root are set
* to the root of test classpath; see {@link #getStartupContextProperties(ExtensionContext)}.
* @Inject {@link StaticModulesRegistry}
* @Inject {@link TestDocument}
* - services configured by the {@link DomainXml} annotation.
*
*
* @author David Matejcek
*/
public class HK2JUnit5Extension
implements BeforeAllCallback, TestInstancePostProcessor, BeforeEachCallback, AfterEachCallback, AfterAllCallback {
private static final Logger LOG = Logger.getLogger(HK2JUnit5Extension.class.getName());
private static final String CLASS_PATH_PROP = "java.class.path";
private static final String DOT_CLASS = ".class";
private static final String START_TIME_METHOD = "start time method";
private MockGenerator mockGenerator;
private ServiceLocator locator;
private DynamicConfiguration config;
private StartupContext startupContext;
private StaticModulesRegistry modulesRegistry;
private Namespace namespaceMethod;
@Override
public void beforeAll(final ExtensionContext context) throws Exception {
final Class testClass = context.getRequiredTestClass();
final ClassLoader loader = getClassLoader(context);
mockGenerator = new MockGenerator();
final Properties startupContextProperties = getStartupContextProperties(context);
LOG.log(Level.CONFIG, "startupContextProperties set to {0}", startupContextProperties);
startupContext = new StartupContext(startupContextProperties);
modulesRegistry = new StaticModulesRegistry(getClassLoader(context), startupContext);
// note: locator created from the registry would not support transactions.
locator = createLocator(context);
addConstantServices(context);
final String domainXml = getDomainXml(testClass);
Class> domainXmlDomClass = getDomainXmlDomClass(testClass);
addOneConstant(locator, domainXmlDomClass.getConstructor(ServiceLocator.class).newInstance(locator));
if (domainXml != null) {
addConfigFromResource(loader, domainXml, domainXmlDomClass);
}
// lists keep ordering
final List packages = getPackages(testClass);
final List> classes = getClasses(testClass);
final Set> excludedClasses = getExcludedClasses(testClass);
config = locator.getService(DynamicConfigurationService.class).createDynamicConfiguration();
addServicesFromLocatorFiles(loader, excludedClasses, getLocatorFilePaths(context));
addServicesFromPackage(packages, excludedClasses);
addServices(classes, excludedClasses);
try {
config.commit();
} catch (Exception e) {
// if it failed, dump everything
ServiceLocatorUtilities.dumpAllDescriptors(locator, System.err);
throw e;
}
}
@Override
public void postProcessTestInstance(final Object testInstance, final ExtensionContext context) throws Exception {
LOG.log(Level.FINE, "Injecting attributes to the test instance: {0}", testInstance);
locator.inject(testInstance);
}
@Override
public void beforeEach(ExtensionContext context) throws Exception {
LOG.log(Level.FINE, "beforeEach. Test name: {0}", context.getRequiredTestMethod());
this.namespaceMethod = Namespace.create(context.getRequiredTestClass(), context.getRequiredTestMethod());
context.getStore(this.namespaceMethod).put(START_TIME_METHOD, LocalDateTime.now());
}
@Override
public void afterEach(ExtensionContext context) throws Exception {
final LocalDateTime startTime = context.getStore(this.namespaceMethod).remove(START_TIME_METHOD,
LocalDateTime.class);
LOG.log(Level.INFO, "Test: {0}.{1}, started at {2}, test time: {3} ms",
new Object[] {
context.getRequiredTestClass().getName(), context.getRequiredTestMethod().getName(),
DateTimeFormatter.ISO_LOCAL_TIME.format(startTime),
startTime.until(LocalDateTime.now(), ChronoUnit.MILLIS)});
}
@Override
public void afterAll(final ExtensionContext context) throws Exception {
if (modulesRegistry != null) {
modulesRegistry.shutdown();
}
if (locator != null) {
locator.shutdown();
}
}
/**
* @return locator with a name set by {@link #getLocatorName(ExtensionContext)}
*/
protected ServiceLocator getLocator() {
return locator;
}
/**
* @return simple name of the test class + ServiceLocator
*/
protected String getLocatorName(final ExtensionContext context) {
return context.getRequiredTestClass().getSimpleName() + "ServiceLocator";
}
/**
* @return {@link ServiceLocator} named by {@link #getLocatorName(ExtensionContext)}
*/
protected ServiceLocator createLocator(final ExtensionContext context) {
final ServiceLocator newLocator = createAndPopulateServiceLocator(getLocatorName(context));
assertNotNull(newLocator.getService(Transactions.class),
"Transactions service from Configuration subsystem is not available!");
return newLocator;
}
/**
* @return {@link ClassLoader} of the test class
*/
protected ClassLoader getClassLoader(final ExtensionContext context) {
return context.getRequiredTestClass().getClassLoader();
}
/**
* @return properties for the {@link StartupContext} instance.
*/
protected Properties getStartupContextProperties(final ExtensionContext context) {
final Properties startupContextProperties = new Properties();
final String rootPath = context.getRequiredTestClass().getResource("/").getPath();
startupContextProperties.put(Constants.INSTALL_ROOT_PROP_NAME, rootPath);
startupContextProperties.put(Constants.INSTANCE_ROOT_PROP_NAME, rootPath);
return startupContextProperties;
}
/**
* Uses {@link ServiceLocatorUtilities#addOneConstant(ServiceLocator, Object)} calls to set
* some useful implicit services:
* @Inject {@link Logger} - named after the test.
* @Inject {@link MockGenerator}
* @Inject {@link StartupContext} - install root and instance root are set
* to the root of test classpath; see {@link #getStartupContextProperties(ExtensionContext)}.
* @Inject {@link StaticModulesRegistry}
* @Inject {@link TestDocument}
*/
protected void addConstantServices(final ExtensionContext context) {
addOneConstant(locator, Logger.getLogger(context.getRequiredTestClass().getName()), "testLogger", Logger.class);
addOneConstant(locator, mockGenerator);
addOneConstant(locator, startupContext);
addOneConstant(locator, modulesRegistry);
String installRoot = startupContext.getArguments().getProperty(Constants.INSTALL_ROOT_PROP_NAME);
if (installRoot == null) {
addOneConstant(locator, new ServerEnvironmentImpl());
} else {
addOneConstant(locator, new ServerEnvironmentImpl(new File(installRoot)));
}
}
/**
* @param testClass
* @return path obtained from test's {@link DomainXml} annotation
*/
protected String getDomainXml(final Class testClass) {
final DomainXml domainXmlAnnotation = testClass.getAnnotation(DomainXml.class);
return domainXmlAnnotation == null ? null : domainXmlAnnotation.value();
}
/**
* @param testClass
* @return a {@link DomDocument} class obtained from test's {@link DomainXml} annotation
*/
protected Class> getDomainXmlDomClass(final Class testClass) {
final DomainXml domainXmlAnnotation = testClass.getAnnotation(DomainXml.class);
return domainXmlAnnotation == null ? TestDocument.class : domainXmlAnnotation.domDocumentClass();
}
/**
* @param testClass
* @return packages obtained from test's {@link Packages} annotation
*/
protected List getPackages(final Class testClass) {
final Packages packagesAnnotation = testClass.getAnnotation(Packages.class);
final List packages = packagesAnnotation == null ? List.of(testClass.getPackageName())
: Arrays.asList(packagesAnnotation.value());
return packages;
}
/**
* @param testClass
* @return classes obtained from test's {@link Classes} annotation
*/
protected List> getClasses(final Class testClass) {
final Classes classesAnnotation = testClass.getAnnotation(Classes.class);
final List> classes = classesAnnotation == null ? List.of() : List.of(classesAnnotation.value());
return classes;
}
/**
* @param testClass
* @return classes obtained from test's {@link ExcludeClasses} annotation
*/
protected Set> getExcludedClasses(final Class testClass) {
final ExcludeClasses excludeClassesAnnotation = testClass.getAnnotation(ExcludeClasses.class);
final Set> excludedClasses = excludeClassesAnnotation == null ? Set.of()
: Set.of(excludeClassesAnnotation.value());
return excludedClasses;
}
/**
* @param context
* @return paths obtained from test's {@link LocatorFiles} annotation
*/
protected Set getLocatorFilePaths(final ExtensionContext context) {
final HashSet paths = new HashSet<>();
final LocatorFiles locatorFilePaths = context.getRequiredTestClass().getAnnotation(LocatorFiles.class);
if (locatorFilePaths == null) {
paths.add("META-INF/hk2-locator/default");
return paths;
}
for (final String path : locatorFilePaths.value()) {
paths.add(path);
}
return paths;
}
/**
* Creates a mock for the interface.
* All it's methods will throw {@link UnsupportedOperationException}.
* The service then can be injected in cases when it is required as a dependency, but then unused.
*
* @param iface
*/
protected void addMockDescriptor(final Class iface) {
addOneDescriptor(locator, mockGenerator.createMockDescriptor(iface));
}
private void addConfigFromResource(final ClassLoader loader, final String resourcePath,
final Class> domClass) {
URL url = requireNonNull(loader.getResource(resourcePath), "The resourcePath doesn't exist: " + resourcePath);
DomDocument testDocumentService = requireNonNull(locator.getService(domClass), "service " + domClass);
ConfigParser configParser = new ConfigParser(locator);
DomDocument document = configParser.parse(url, testDocumentService);
addOneConstant(locator, document, null, DomDocument.class, domClass);
}
private void addServicesFromLocatorFiles(final ClassLoader loader, final Set> excludedClasses,
final Set locatorFiles) {
for (final String locatorFile : locatorFiles) {
Enumeration resources;
try {
resources = loader.getResources(locatorFile);
} catch (IOException e) {
throw new IllegalStateException("Resource could not be loaded: " + locatorFile, e);
}
readResources(resources, excludedClasses);
}
}
private void addServicesFromPackage(final List packages, final Set> excludedClasses) {
if (packages.isEmpty()) {
return;
}
final String classPath = System.getProperty(CLASS_PATH_PROP);
final StringTokenizer st = new StringTokenizer(classPath, File.pathSeparator);
while (st.hasMoreTokens()) {
addServicesFromPathElement(packages, st.nextToken(), excludedClasses);
}
}
private void addServices(final List> classes, final Set> excludedClasses) {
for (Class clazz : classes) {
if (excludedClasses.contains(clazz)) {
continue;
}
config.addActiveDescriptor(clazz);
}
}
private void addServicesFromPathElement(final List packages, final String path,
final Set> excludedClasses) {
final File fileElement = new File(path);
if (!fileElement.exists()) {
return;
}
if (fileElement.isDirectory()) {
addServicesFromPathDirectory(packages, fileElement, excludedClasses);
} else {
addServicesFromPathJar(packages, fileElement, excludedClasses);
}
}
private void addServicesFromPathDirectory(final List packages, final File directory,
final Set> excludedClasses) {
for (final String pack : packages) {
final File searchDir = new File(directory, convertToFileFormat(pack));
if (!searchDir.exists()) {
continue;
}
if (!searchDir.isDirectory()) {
continue;
}
final File candidates[] = searchDir.listFiles((FilenameFilter) (dir, name) -> {
if (name == null) {
return false;
}
if (name.endsWith(DOT_CLASS)) {
return true;
}
return false;
});
if (candidates == null) {
continue;
}
for (final File candidate : candidates) {
try (FileInputStream fis = new FileInputStream(candidate)) {
addClassIfService(fis, excludedClasses);
} catch (IOException e) {
throw new IllegalStateException("addServicesFromPathDirectory failed.", e);
}
}
}
}
private void addServicesFromPathJar(final List packages, final File jar,
final Set> excludedClasses) {
try (JarFile jarFile = new JarFile(jar)) {
for (final String pack : packages) {
final String packAsFile = convertToFileFormat(pack);
final int packAsFileLen = packAsFile.length() + 1;
final Enumeration entries = jarFile.entries();
while (entries.hasMoreElements()) {
final JarEntry entry = entries.nextElement();
final String entryName = entry.getName();
if (!entryName.startsWith(packAsFile)) {
// Not in the correct directory
continue;
}
if (entryName.substring(packAsFileLen).contains("/")) {
// Next directory down
continue;
}
if (!entryName.endsWith(DOT_CLASS)) {
// Not a class
continue;
}
try {
addClassIfService(jarFile.getInputStream(entry), excludedClasses);
} catch (final IOException ioe) {
// Simply don't add it if we can't read it
}
}
}
} catch (IOException e) {
throw new IllegalStateException("addServicesFromPathJar failed.", e);
}
}
private void readResources(final Enumeration resources, final Set> excludedClasses) {
final Set exclude = excludedClasses.stream().map(Class::getName).collect(Collectors.toSet());
while (resources.hasMoreElements()) {
final URL url = resources.nextElement();
try (BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream()))) {
while (true) {
final DescriptorImpl descriptor = new DescriptorImpl();
final boolean goOn = descriptor.readObject(reader);
if (!goOn) {
break;
}
if (exclude.contains(descriptor.getImplementation())) {
continue;
}
config.bind(descriptor);
}
} catch (IOException e) {
throw new IllegalStateException("readResources failed.", e);
}
}
}
private static String convertToFileFormat(final String clazzFormat) {
return clazzFormat.replaceAll("\\.", "/");
}
private void addClassIfService(final InputStream is, final Set> excludedClasses) throws IOException {
final ClassReader reader = new ClassReader(is);
final HK2ClasssVisitor cvi = new HK2ClasssVisitor(locator, excludedClasses);
reader.accept(cvi, ClassReader.SKIP_CODE | ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
}
}