Examples with StartListening org.apache.meecrowave.api.StartListening used on opensource projects

Example 1 with StartListening

use of org.apache.meecrowave.api.StartListening in project meecrowave by apache.

the class Meecrowave method deployWebapp.

public Meecrowave deployWebapp(final DeploymentMeta meta) {
    if (contexts.containsKey(meta.context)) {
        throw new IllegalArgumentException("Already deployed: '" + meta.context + "'");
    }
    // always nice to see the deployment with something else than internals
    final String base = tomcat.getService().findConnectors().length > 0 ? (configuration.getActiveProtocol() + "://" + tomcat.getHost().getName() + ':' + configuration.getActivePort()) : "";
    new LogFacade(Meecrowave.class.getName()).info("--------------- " + base + meta.context);
    final OWBJarScanner scanner = new OWBJarScanner();
    final StandardContext ctx = new StandardContext() {

        @Override
        public void setApplicationEventListeners(final Object[] listeners) {
            if (listeners == null) {
                super.setApplicationEventListeners(null);
                return;
            }
            // if we don't -> no @RequestScoped in request listeners :(
            for (int i = 1; i < listeners.length; i++) {
                if (OWBAutoSetup.EagerBootListener.class.isInstance(listeners[i])) {
                    final Object first = listeners[0];
                    listeners[0] = listeners[i];
                    listeners[i] = first;
                    break;
                }
            }
            // and finally let it go after our re-ordering
            super.setApplicationEventListeners(listeners);
        }
    };
    ctx.setPath(meta.context);
    ctx.setName(meta.context);
    ctx.setJarScanner(scanner);
    ctx.setInstanceManager(new CDIInstanceManager());
    ofNullable(meta.docBase).ifPresent(d -> {
        try {
            ctx.setDocBase(meta.docBase.getCanonicalPath());
        } catch (final IOException e) {
            ctx.setDocBase(meta.docBase.getAbsolutePath());
        }
    });
    ofNullable(configuration.tomcatFilter).ifPresent(filter -> {
        try {
            scanner.setJarScanFilter(JarScanFilter.class.cast(Thread.currentThread().getContextClassLoader().loadClass(filter).newInstance()));
        } catch (final ClassNotFoundException | InstantiationException | IllegalAccessException e) {
            throw new IllegalArgumentException(e);
        }
    });
    final AtomicReference<Runnable> releaseSCI = new AtomicReference<>();
    final ServletContainerInitializer meecrowaveInitializer = (c, ctx1) -> {
        new OWBAutoSetup().onStartup(c, ctx1);
        new CxfCdiAutoSetup().onStartup(c, ctx1);
        new TomcatAutoInitializer().onStartup(c, ctx1);
        if (configuration.isInjectServletContainerInitializer()) {
            final Field f;
            try {
                // now cdi is on, we can inject cdi beans in ServletContainerInitializer
                f = StandardContext.class.getDeclaredField("initializers");
                if (!f.isAccessible()) {
                    f.setAccessible(true);
                }
            } catch (final Exception e) {
                throw new IllegalStateException("Bad tomcat version", e);
            }
            final List<AutoCloseable> cc;
            try {
                cc = ((Map<ServletContainerInitializer, Set<Class<?>>>) f.get(ctx)).keySet().stream().filter(i -> !i.getClass().getName().startsWith(Meecrowave.class.getName())).map(i -> {
                    try {
                        return this.inject(i);
                    } catch (final IllegalArgumentException iae) {
                        return null;
                    }
                }).filter(Objects::nonNull).collect(toList());
            } catch (final IllegalAccessException e) {
                throw new IllegalStateException("Can't read initializers", e);
            }
            releaseSCI.set(() -> cc.forEach(closeable -> {
                try {
                    closeable.close();
                } catch (final Exception e) {
                    throw new IllegalStateException(e);
                }
            }));
        }
    };
    ctx.addLifecycleListener(new MeecrowaveContextConfig(configuration, meta.docBase != null, meecrowaveInitializer));
    ctx.addLifecycleListener(event -> {
        switch(event.getType()) {
            case Lifecycle.AFTER_START_EVENT:
                ctx.getResources().setCachingAllowed(configuration.webResourceCached);
                break;
            case Lifecycle.BEFORE_INIT_EVENT:
                ctx.getServletContext().setAttribute("meecrowave.configuration", configuration);
                ctx.getServletContext().setAttribute("meecrowave.instance", Meecrowave.this);
                if (configuration.loginConfig != null) {
                    ctx.setLoginConfig(configuration.loginConfig.build());
                }
                for (final SecurityConstaintBuilder sc : configuration.securityConstraints) {
                    ctx.addConstraint(sc.build());
                }
                if (configuration.webXml != null) {
                    ctx.getServletContext().setAttribute(Globals.ALT_DD_ATTR, configuration.webXml);
                }
                break;
            default:
        }
    });
    // after having configured the security!!!
    ctx.addLifecycleListener(new Tomcat.FixContextListener());
    ctx.addServletContainerInitializer(meecrowaveInitializer, emptySet());
    if (configuration.isUseTomcatDefaults()) {
        ctx.setSessionTimeout(30);
        ctx.addWelcomeFile("index.html");
        ctx.addWelcomeFile("index.htm");
        try {
            final Field mimesField = Tomcat.class.getDeclaredField("DEFAULT_MIME_MAPPINGS");
            if (!mimesField.isAccessible()) {
                mimesField.setAccessible(true);
            }
            final String[] defaultMimes = String[].class.cast(mimesField.get(null));
            for (int i = 0; i < defaultMimes.length; ) {
                ctx.addMimeMapping(defaultMimes[i++], defaultMimes[i++]);
            }
        } catch (final NoSuchFieldException | IllegalAccessException e) {
            throw new IllegalStateException("Incompatible Tomcat", e);
        }
    }
    ofNullable(meta.consumer).ifPresent(c -> c.accept(ctx));
    final Host host = tomcat.getHost();
    host.addChild(ctx);
    final ClassLoader classLoader = ctx.getLoader().getClassLoader();
    if (host.getState().isAvailable()) {
        fire(new StartListening(findFirstConnector(), host, ctx), classLoader);
    }
    contexts.put(meta.context, () -> {
        if (host.getState().isAvailable()) {
            fire(new StopListening(findFirstConnector(), host, ctx), classLoader);
        }
        ofNullable(releaseSCI.get()).ifPresent(Runnable::run);
        tomcat.getHost().removeChild(ctx);
    });
    return this;
}