Examples with NamespaceHandler2 org.apache.aries.blueprint.NamespaceHandler2 used on opensource projects

Example 1 with NamespaceHandler2

use of org.apache.aries.blueprint.NamespaceHandler2 in project aries by apache.

the class BlueprintContainerImpl method doRun.

/**
 * This method must be called inside a synchronized block to ensure this method is not run concurrently
 */
private void doRun() {
    try {
        for (; ; ) {
            if (destroyed.get()) {
                return;
            }
            if (bundle.getState() != Bundle.ACTIVE && bundle.getState() != Bundle.STARTING) {
                return;
            }
            if (bundle.getBundleContext() != bundleContext) {
                return;
            }
            LOGGER.debug("Running container for blueprint bundle {}/{} in state {}", getBundle().getSymbolicName(), getBundle().getVersion(), state);
            switch(state) {
                case Unknown:
                    readDirectives();
                    eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.CREATING, getBundle(), getExtenderBundle()));
                    parser = new Parser();
                    parser.parse(pathList);
                    namespaces = parser.getNamespaces();
                    if (additionalNamespaces != null) {
                        namespaces.addAll(additionalNamespaces);
                    }
                    handlerSet = handlers.getNamespaceHandlers(namespaces, getBundle());
                    handlerSet.addListener(this);
                    state = State.WaitForNamespaceHandlers;
                    break;
                case WaitForNamespaceHandlers:
                    {
                        List<String> missing = new ArrayList<String>();
                        List<URI> missingURIs = new ArrayList<URI>();
                        for (URI ns : handlerSet.getNamespaces()) {
                            if (handlerSet.getNamespaceHandler(ns) == null) {
                                missing.add("(&(" + Constants.OBJECTCLASS + "=" + NamespaceHandler.class.getName() + ")(" + NamespaceHandlerRegistryImpl.NAMESPACE + "=" + ns + "))");
                                missingURIs.add(ns);
                            }
                        }
                        if (missing.size() > 0) {
                            LOGGER.info("Blueprint bundle {}/{} is waiting for namespace handlers {}", getBundle().getSymbolicName(), getBundle().getVersion(), missingURIs);
                            eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.GRACE_PERIOD, getBundle(), getExtenderBundle(), missing.toArray(new String[missing.size()])));
                            return;
                        }
                        resetComponentDefinitionRegistry();
                        if (xmlValidation == null || "true".equals(xmlValidation)) {
                            for (URI ns : handlerSet.getNamespaces()) {
                                NamespaceHandler handler = handlerSet.getNamespaceHandler(ns);
                                if (handler instanceof NamespaceHandler2) {
                                    if (((NamespaceHandler2) handler).usePsvi()) {
                                        xmlValidation = "psvi";
                                        break;
                                    }
                                }
                            }
                        }
                        try {
                            if (xmlValidation == null || "true".equals(xmlValidation)) {
                                parser.validate(handlerSet.getSchema(parser.getSchemaLocations()));
                            } else if ("structure".equals(xmlValidation)) {
                                parser.validate(handlerSet.getSchema(parser.getSchemaLocations()), new ValidationHandler());
                            } else if ("psvi".equals(xmlValidation)) {
                                parser.validatePsvi(handlerSet.getSchema(parser.getSchemaLocations()));
                            }
                            parser.populate(handlerSet, componentDefinitionRegistry);
                            state = State.Populated;
                        } catch (MissingNamespaceException e) {
                            // If we found a missing namespace when parsing the schema,
                            // we remain in the current state
                            handlerSet.getNamespaces().add(e.getNamespace());
                        }
                        break;
                    }
                case Populated:
                    getRepository();
                    trackServiceReferences();
                    Runnable r = new Runnable() {

                        public void run() {
                            synchronized (scheduled) {
                                if (destroyed.get()) {
                                    return;
                                }
                                String[] missingDependecies = getMissingDependencies();
                                if (missingDependecies.length == 0) {
                                    return;
                                }
                                Throwable t = new TimeoutException();
                                state = State.Failed;
                                tidyupComponents();
                                LOGGER.error("Unable to start container for blueprint bundle {}/{} due to unresolved dependencies {}", getBundle().getSymbolicName(), getBundle().getVersion(), Arrays.asList(missingDependecies), t);
                                eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.FAILURE, getBundle(), getExtenderBundle(), missingDependecies, t));
                            }
                        }
                    };
                    timeoutFuture = timer.schedule(r, timeout, TimeUnit.MILLISECONDS);
                    state = State.WaitForInitialReferences;
                    break;
                case WaitForInitialReferences:
                    if (waitForDependencies) {
                        String[] missingDependencies = getMissingDependencies();
                        if (missingDependencies.length > 0) {
                            LOGGER.info("Blueprint bundle {}/{} is waiting for dependencies {}", getBundle().getSymbolicName(), getBundle().getVersion(), Arrays.asList(missingDependencies));
                            eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.GRACE_PERIOD, getBundle(), getExtenderBundle(), missingDependencies));
                            return;
                        }
                    }
                    state = State.InitialReferencesSatisfied;
                    break;
                case InitialReferencesSatisfied:
                    processTypeConverters();
                    processProcessors();
                    state = State.WaitForInitialReferences2;
                    break;
                case WaitForInitialReferences2:
                    if (waitForDependencies) {
                        String[] missingDependencies = getMissingDependencies();
                        if (missingDependencies.length > 0) {
                            LOGGER.info("Blueprint bundle {}/{} is waiting for dependencies {}", getBundle().getSymbolicName(), getBundle().getVersion(), Arrays.asList(missingDependencies));
                            eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.GRACE_PERIOD, getBundle(), getExtenderBundle(), missingDependencies));
                            return;
                        }
                    }
                    state = State.Create;
                    break;
                case Create:
                    cancelFutureIfPresent();
                    instantiateEagerComponents();
                    // Register the services after the eager components are ready, as per 121.6
                    registerServices();
                    // Register the BlueprintContainer in the OSGi registry
                    int bs = bundle.getState();
                    if (registration == null && (bs == Bundle.ACTIVE || bs == Bundle.STARTING)) {
                        Properties props = new Properties();
                        props.put(BlueprintConstants.CONTAINER_SYMBOLIC_NAME_PROPERTY, bundle.getSymbolicName());
                        props.put(BlueprintConstants.CONTAINER_VERSION_PROPERTY, JavaUtils.getBundleVersion(bundle));
                        registration = registerService(new String[] { BlueprintContainer.class.getName() }, this, props);
                    }
                    LOGGER.info("Blueprint bundle {}/{} has been started", getBundle().getSymbolicName(), getBundle().getVersion());
                    eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.CREATED, getBundle(), getExtenderBundle()));
                    state = State.Created;
                    break;
                case Created:
                case Failed:
                    return;
            }
        }
    } catch (Throwable t) {
        try {
            state = State.Failed;
            cancelFutureIfPresent();
            tidyupComponents();
            LOGGER.error("Unable to start container for blueprint bundle {}/{}", getBundle().getSymbolicName(), getBundle().getVersion(), t);
            eventDispatcher.blueprintEvent(new BlueprintEvent(BlueprintEvent.FAILURE, getBundle(), getExtenderBundle(), t));
        } catch (RuntimeException re) {
            LOGGER.debug("Tidying up components failed. ", re);
            throw re;
        }
    }
}