KernelOsgiContextClassLoaderProvider(Bundle bundle) {
this.bundleClassLoader = BundleDelegatingClassLoader.createBundleClassLoaderFor(bundle);
}
/**
* Constructs a new <code>ExtenderConfiguration</code> instance. Locates the extender
* configuration, creates an application context which will returned the extender items.
*
* @param bundleContext extender OSGi bundle context
*/
public ExtenderConfiguration(BundleContext bundleContext, Log log) {
this.log = log;
Bundle bundle = bundleContext.getBundle();
Properties properties = new Properties(createDefaultProperties());
Enumeration<?> enm = bundle.findEntries(EXTENDER_CFG_LOCATION, XML_PATTERN, false);
if (enm == null) {
log.info("No custom extender configuration detected; using defaults...");
synchronized (lock) {
taskExecutor = createDefaultTaskExecutor();
shutdownTaskExecutor = createDefaultShutdownTaskExecutor();
eventMulticaster = createDefaultEventMulticaster();
contextCreator = createDefaultApplicationContextCreator();
contextEventListener = createDefaultApplicationContextListener();
}
classLoader = BundleDelegatingClassLoader.createBundleClassLoaderFor(bundle);
} else {
String[] configs = copyEnumerationToList(enm);
log.info(
"Detected extender custom configurations at " + ObjectUtils.nullSafeToString(configs));
// create OSGi specific XML context
ConfigurableOsgiBundleApplicationContext extenderAppCtx =
new OsgiBundleXmlApplicationContext(configs);
extenderAppCtx.setBundleContext(bundleContext);
extenderAppCtx.refresh();
synchronized (lock) {
extenderConfiguration = extenderAppCtx;
// initialize beans
taskExecutor =
extenderConfiguration.containsBean(TASK_EXECUTOR_NAME)
? (TaskExecutor)
extenderConfiguration.getBean(TASK_EXECUTOR_NAME, TaskExecutor.class)
: createDefaultTaskExecutor();
shutdownTaskExecutor =
extenderConfiguration.containsBean(SHUTDOWN_TASK_EXECUTOR_NAME)
? (TaskExecutor)
extenderConfiguration.getBean(SHUTDOWN_TASK_EXECUTOR_NAME, TaskExecutor.class)
: createDefaultShutdownTaskExecutor();
eventMulticaster =
extenderConfiguration.containsBean(APPLICATION_EVENT_MULTICASTER_BEAN_NAME)
? (OsgiBundleApplicationContextEventMulticaster)
extenderConfiguration.getBean(
APPLICATION_EVENT_MULTICASTER_BEAN_NAME,
OsgiBundleApplicationContextEventMulticaster.class)
: createDefaultEventMulticaster();
contextCreator =
extenderConfiguration.containsBean(CONTEXT_CREATOR_NAME)
? (OsgiApplicationContextCreator)
extenderConfiguration.getBean(
CONTEXT_CREATOR_NAME, OsgiApplicationContextCreator.class)
: createDefaultApplicationContextCreator();
contextEventListener =
extenderConfiguration.containsBean(CONTEXT_LISTENER_NAME)
? (OsgiBundleApplicationContextListener)
extenderConfiguration.getBean(
CONTEXT_LISTENER_NAME, OsgiBundleApplicationContextListener.class)
: createDefaultApplicationContextListener();
}
// get post processors
postProcessors.addAll(
extenderConfiguration.getBeansOfType(OsgiBeanFactoryPostProcessor.class).values());
// get dependency factories
dependencyFactories.addAll(
extenderConfiguration.getBeansOfType(OsgiServiceDependencyFactory.class).values());
classLoader = extenderConfiguration.getClassLoader();
// extender properties using the defaults as backup
if (extenderConfiguration.containsBean(PROPERTIES_NAME)) {
Properties customProperties =
(Properties) extenderConfiguration.getBean(PROPERTIES_NAME, Properties.class);
Enumeration<?> propertyKey = customProperties.propertyNames();
while (propertyKey.hasMoreElements()) {
String property = (String) propertyKey.nextElement();
properties.setProperty(property, customProperties.getProperty(property));
}
}
}
synchronized (lock) {
shutdownWaitTime = getShutdownWaitTime(properties);
dependencyWaitTime = getDependencyWaitTime(properties);
processAnnotation = getProcessAnnotations(properties);
}
// load default dependency factories
addDefaultDependencyFactories();
// allow post processing
contextCreator = postProcess(contextCreator);
}
