javax.naming.InitialContext Java Examples

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    resp.setContentType("text/plain;UTF-8");
    PrintWriter out = resp.getWriter();

    try {
        Context ctx = new InitialContext();
        Object obj = ctx.lookup("java:comp/env/bug50351");
        TesterObject to = (TesterObject) obj;
        out.print(to.getFoo());
    } catch (NamingException ne) {
        ne.printStackTrace(out);
    }
}
 

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {

    resp.setContentType("text/plain;UTF-8");
    PrintWriter out = resp.getWriter();

    try {
        Context initCtx = new InitialContext();

        Boolean b1 = (Boolean) initCtx.lookup(JNDI_NAME);
        Boolean b2 = (Boolean) initCtx.lookup(
                new CompositeName(JNDI_NAME));

        out.print(b1);
        out.print(b2);

    } catch (NamingException ne) {
        throw new ServletException(ne);
    }
}
 

public Object lookup(String hostPort, String name, Class<?> cls) throws NamingException {

        if (cls.getName().equals("javax.transaction.TransactionManager") && useMdwTransactionManager) {
            return MdwTransactionManager.getInstance();
        }
        else if (cls.getName().equals("javax.jms.Topic")) {
            JmsProvider jmsProvider = ApplicationContext.getJmsProvider();
            if (!(jmsProvider instanceof ActiveMqJms))
                throw new NamingException("Unsupported JMS Provider: " + jmsProvider);
            ActiveMqJms activeMqJms = (ActiveMqJms) jmsProvider;
            return activeMqJms.getTopic(name);
        }

        try {
            Context initCtx = new InitialContext();
            Context envCtx = (Context) initCtx.lookup("java:comp/env");
            return envCtx.lookup(name);
        }
        catch (Exception e) {
            NamingException ne = new NamingException("Failed to look up " + name);
            ne.initCause(e);
            throw ne;
        }
    }
 

@Override
public void lookupPersistenceUnit() throws TestFailureException {
    try {
        try {
            final InitialContext ctx = new InitialContext();
            Assert.assertNotNull("The InitialContext is null", ctx);
            final EntityManagerFactory emf = (EntityManagerFactory) ctx.lookup("java:comp/env/persistence/TestUnit");
            Assert.assertNotNull("The EntityManagerFactory is null", emf);

        } catch (final Exception e) {
            Assert.fail("Received Exception " + e.getClass() + " : " + e.getMessage());
        }
    } catch (final AssertionFailedError afe) {
        throw new TestFailureException(afe);
    }
}
 

private UserTransaction getUserTransaction() {
    try {
        logger.debug("Attempting to look up standard UserTransaction.");
        return (UserTransaction) new InitialContext().lookup(
                USER_TRANSACTION_LOCATION);
    } catch (NamingException ex) {
        logger.debug("Could not look up standard UserTransaction.", ex);

        try {
            logger.debug("Attempting to look up JBoss proprietary UserTransaction.");
            return (UserTransaction) new InitialContext().lookup(
                    JBOSS_USER_TRANSACTION_LOCATION);
        } catch (NamingException ex1) {
            logger.debug("Could not look up JBoss proprietary UserTransaction.", ex1);
        }
    }

    return null;
}
 

public void lookupPersistenceContext() throws TestFailureException {
    try {
        try {
            final InitialContext ctx = new InitialContext();
            Assert.assertNotNull("The InitialContext is null", ctx);
            final EntityManager em = (EntityManager) ctx.lookup("java:comp/env/persistence/TestContext");
            Assert.assertNotNull("The EntityManager is null", em);

            // call a do nothing method to assure entity manager actually exists
            em.getFlushMode();
        } catch (final Exception e) {
            Assert.fail("Received Exception " + e.getClass() + " : " + e.getMessage());
        }
    } catch (final AssertionFailedError afe) {
        throw new TestFailureException(afe);
    }
}
 

public void lookupSessionContext() throws TestFailureException {
    try {
        try {
            final InitialContext ctx = new InitialContext();
            Assert.assertNotNull("The InitialContext is null", ctx);

            // lookup in enc
            final SessionContext sctx = (SessionContext) ctx.lookup("java:comp/env/sessioncontext");
            Assert.assertNotNull("The SessionContext got from java:comp/env/sessioncontext is null", sctx);

            // lookup using global name
            final EJBContext ejbCtx = (EJBContext) ctx.lookup("java:comp/EJBContext");
            Assert.assertNotNull("The SessionContext got from java:comp/EJBContext is null ", ejbCtx);

            // verify context was set via legacy set method
            Assert.assertNotNull("The SessionContext is null from setter method", ejbContext);
        } catch (final Exception e) {
            Assert.fail("Received Exception " + e.getClass() + " : " + e.getMessage());
        }
    } catch (final AssertionFailedError afe) {
        throw new TestFailureException(afe);
    }

}
 

@BeforeClass
public static void setup() throws Exception {
    ctx = new InitialContext(new Hashtable<>(Collections.singletonMap(Context.INITIAL_CONTEXT_FACTORY,
            "org.osjava.sj.memory.MemoryContextFactory")));
    CADConverter converter1 = Mockito.mock(CADConverter.class);
    Mockito.when(converter1.canConvertToOBJ("format")).thenReturn(true);
    CADConverter converter2 = Mockito.mock(CADConverter.class);
    Mockito.when(converter2.canConvertToOBJ("format")).thenReturn(true);
    ctx.createSubcontext("java:global");
    ctx.createSubcontext("java:global/application");
    ctx.createSubcontext("java:global/application/module");
    ctx.bind("java:global/application/module/c1Bean!org.polarsys.eplmp.server.converters.CADConverter", converter1);
    ctx.bind("java:global/application/module/c1Bean", converter1);
    ctx.bind("java:global/application/module/c2Bean", converter2);
    ctx.bind("java:global/application/module/c2Bean!org.polarsys.eplmp.server.converters.CADConverter", converter2);
}
 

public void lookupFloatEntry() throws TestFailureException {
    try {
        try {
            final InitialContext ctx = new InitialContext();
            Assert.assertNotNull("The InitialContext is null", ctx);

            final Float expected = new Float(1.0F);
            final Float actual = (Float) ctx.lookup("java:comp/env/entity/cmp/references/Float");

            Assert.assertNotNull("The Float looked up is null", actual);
            Assert.assertEquals(expected, actual);

        } catch (final Exception e) {
            Assert.fail("Received Exception " + e.getClass() + " : " + e.getMessage());
        }
    } catch (final AssertionFailedError afe) {
        throw new TestFailureException(afe);
    }
}
 

public static synchronized void registerConnections(IJdbcResourceFactoryProvider provider) throws ResourceFactoriesException {
    // Look at the local providers
    String[] names = provider.getConnectionNames();
    if(names!=null) {
        for(int j=0; j<names.length; j++) {
            String name = names[j];
            Integer n = connections.get(name);
            if(n==null) {
                n = 1;
                //Register the dataSourceName in JNDI
                try {
                    Context ctx = new InitialContext();
                    String jndiName = JndiRegistry.getJNDIBindName(name);
                    ctx.bind( jndiName, new JndiDataSourceProxy(name) );
                } catch(NamingException ex) {
                    throw new ResourceFactoriesException(ex,StringUtil.format("Error while binding JNDI name {0}",name)); // $NLX-JndiRegistry.Errorwhilebinding0name1-1$ $NON-NLS-2$
                }
            } else {
                n = n+1;
            }
            connections.put(name,n);
        }
    }
}
 

/**
 * Obtain the default JBoss JCA WorkManager through a JMX lookup
 * for the JBossWorkManagerMBean.
 * @param mbeanName the JMX object name to use
 * @see org.jboss.resource.work.JBossWorkManagerMBean
 */
public static WorkManager getWorkManager(String mbeanName) {
	Assert.hasLength(mbeanName, "JBossWorkManagerMBean name must not be empty");
	try {
		Class<?> mbeanClass = JBossWorkManagerUtils.class.getClassLoader().loadClass(JBOSS_WORK_MANAGER_MBEAN_CLASS_NAME);
		InitialContext jndiContext = new InitialContext();
		MBeanServerConnection mconn = (MBeanServerConnection) jndiContext.lookup(MBEAN_SERVER_CONNECTION_JNDI_NAME);
		ObjectName objectName = ObjectName.getInstance(mbeanName);
		Object workManagerMBean = MBeanServerInvocationHandler.newProxyInstance(mconn, objectName, mbeanClass, false);
		Method getInstanceMethod = workManagerMBean.getClass().getMethod("getInstance");
		return (WorkManager) getInstanceMethod.invoke(workManagerMBean);
	}
	catch (Exception ex) {
		throw new IllegalStateException(
				"Could not initialize JBossWorkManagerTaskExecutor because JBoss API is not available", ex);
	}
}
 

protected void doGet(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
    response.setContentType("text/plain");
    final ServletOutputStream out = response.getOutputStream();

    final Map<String, Object> bindings = new TreeMap<String, Object>(String.CASE_INSENSITIVE_ORDER);
    try {
        final Context context = (Context) new InitialContext().lookup("java:comp/");
        addBindings("", bindings, context);
    } catch (final NamingException e) {
        throw new ServletException(e);
    }

    out.println("JNDI Context:");
    for (final Map.Entry<String, Object> entry : bindings.entrySet()) {
        if (entry.getValue() != null) {
            out.println("  " + entry.getKey() + "=" + entry.getValue());
        } else {
            out.println("  " + entry.getKey());
        }
    }
}
 

@Override
public void lookupStatelessBusinessRemote() throws TestFailureException {
    try {
        try {
            final InitialContext ctx = new InitialContext();
            Assert.assertNotNull("The InitialContext is null", ctx);

            final BasicStatelessBusinessRemote object = (BasicStatelessBusinessRemote) ctx.lookup("java:comp/env/stateless/beanReferences/stateless-business-remote");
            Assert.assertNotNull("The EJB BusinessRemote is null", object);
        } catch (final Exception e) {
            Assert.fail("Received Exception " + e.getClass() + " : " + e.getMessage());
        }
    } catch (final AssertionFailedError afe) {
        throw new TestFailureException(afe);
    }
}
 

public byte[] getBytes() {
    try {
        final DataSource ds = (DataSource) new InitialContext().lookup("java:comp/env/jdbc/DefaultDatabase");
        final Connection c = ds.getConnection();
        final PreparedStatement ps = c.prepareStatement("SELECT blob_column FROM storage WHERE id = ?");
        ps.setInt(1, (Integer) ctx.getPrimaryKey());
        final ResultSet rs = ps.executeQuery();
        rs.next();
        final InputStream is = rs.getBinaryStream(1);
        final ByteArrayOutputStream os = new ByteArrayOutputStream();
        final byte[] buffer = new byte[1024];
        int count;
        while ((count = is.read(buffer)) > 0) {
            os.write(buffer, 0, count);
        }
        is.close();
        os.close();
        rs.close();
        ps.close();
        c.close();
        return os.toByteArray();
    } catch (final Exception e) {
        throw new EJBException(e);
    }
}
 

public PushSocket() {
    try {
        // Since @Inject does not work with WebSocket ...
        InitialContext initialContext = new InitialContext();
        BeanManager bm = (BeanManager) initialContext.lookup("java:comp/env/BeanManager");
        Bean bean;
        CreationalContext ctx;

        bean = bm.getBeans(INotificationService.class).iterator().next();
        ctx = bm.createCreationalContext(bean);
        notificationService = (INotificationService) bm.getReference(bean, INotificationService.class, ctx);

        bean = bm.getBeans(ITicketingService.class).iterator().next();
        ctx = bm.createCreationalContext(bean);
        ticketingServices = (ITicketingService) bm.getReference(bean, ITicketingService.class, ctx);

    } catch (NamingException e) {
        e.printStackTrace();
    }
}
 

public void lookupByteEntry() throws TestFailureException {
    try {
        try {
            final InitialContext ctx = new InitialContext();
            Assert.assertNotNull("The InitialContext is null", ctx);

            final Byte expected = new Byte((byte) 1);
            final Byte actual = (Byte) ctx.lookup("java:comp/env/entity/bmp/references/Byte");

            Assert.assertNotNull("The Byte looked up is null", actual);
            Assert.assertEquals(expected, actual);

        } catch (final Exception e) {
            Assert.fail("Received Exception " + e.getClass() + " : " + e.getMessage());
        }
    } catch (final AssertionFailedError afe) {
        throw new TestFailureException(afe);
    }
}
 

public void init(final Properties props) {

        properties = props;

        try {
            props.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.core.LocalInitialContextFactory");

            props.put("Default JDBC Database", "new://Resource?type=DataSource");
            props.put("Default JDBC Database.JdbcUrl", "jdbc:hsqldb:mem:" + IvmTestServer.class.getSimpleName() + new Random().nextInt(250) + ";shutdown=true");

            final Properties p = new Properties();
            p.putAll(props);
            p.put("openejb.loader", "embed");
            new InitialContext(p);    // initialize openejb via constructing jndi tree

            //OpenEJB.init(properties);
        } catch (final Exception oe) {
            System.out.println("=========================");
            System.out.println("" + oe.getMessage());
            System.out.println("=========================");
            oe.printStackTrace();
            throw new RuntimeException("OpenEJB could not be initiated");
        }
    }
 

/**
 * @see ServletContextListener#contextInitialized(ServletContextEvent)
 * @param event
 *            The servlet context event at initialization.
 */
public void contextInitialized(ServletContextEvent event) {
	GlobalTracer.register(Tracing.init(Service.RECOMMENDER.getServiceName()));
	RESTClient.setGlobalReadTimeout(REST_READ_TIMOUT);
	ServiceLoadBalancer.preInitializeServiceLoadBalancers(Service.PERSISTENCE);
	RegistryClient.getClient().runAfterServiceIsAvailable(Service.PERSISTENCE, () -> {
		TrainingSynchronizer.getInstance().retrieveDataAndRetrain();
		RegistryClient.getClient().register(event.getServletContext().getContextPath());
	}, Service.RECOMMENDER);
	try {
		long looptime = (Long) new InitialContext().lookup("java:comp/env/recommenderLoopTime");
		// if a looptime is specified, a retraining daemon is started
		if (looptime > 0) {
			new RetrainDaemon(looptime).start();
			LOG.info("Periodic retraining every " + looptime + " milliseconds");
		} else {
			LOG.info("Recommender loop time not set. Disabling periodic retraining.");
		}
	} catch (NamingException e) {
		LOG.info("Recommender loop time not set. Disabling periodic retraining.");
	}

}
 

public static void bindDataSource() {
    JdbcDataSource dataSource = new JdbcDataSource();
    dataSource.setURL("jdbc:h2:mem:db1;DB_CLOSE_DELAY=-1");
    dataSource.setUser(USERNAME);
    dataSource.setPassword(PASSWORD);

    try {
        InitialContext initialContext = new InitialContext();
        initialContext.bind(DATASOURCE_JNDI, dataSource);
    }
    catch (NamingException e) {
        throw new RuntimeException(e);
    }
}
 

public static DataSource getProarcSource() throws NamingException {
    DataSource source = InitialContext.doLookup("java:/comp/env/jdbc/proarc");
    if (source == null) {
        throw new IllegalStateException("Cannot find 'jdbc/proarc' resource!");
    }
    return source;
}
 

@Test
public void testRemoteCFWithJGroups() throws Exception {
   Hashtable<String, String> props = new Hashtable<>();
   props.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.activemq.artemis.jndi.ActiveMQInitialContextFactory");
   props.put("connectionFactory.myConnectionFactory", "jgroups://mychannelid?file=test-jgroups-file_ping.xml");
   Context ctx = new InitialContext(props);

   ActiveMQConnectionFactory connectionFactory = (ActiveMQConnectionFactory) ctx.lookup("myConnectionFactory");
   connectionFactory.getDiscoveryGroupConfiguration().getBroadcastEndpointFactory().createBroadcastEndpoint().close(false);
}
 

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    log.trace("Servlet BookServlet doGet begin");

    BookEJBRemote bookEJBRemote;

    try {
        Context context = new InitialContext();
        bookEJBRemote = (BookEJBRemote) context.lookup("java:global/ear-ejb/war-ejb-1.0-SNAPSHOT/BookEJB!edu.javacourse.BookEJBRemote");
    } catch (NamingException e) {
        log.error("Error while creating JNDI context: {}", e.getMessage());
        throw new ServletException("Error while creating JNDI context");
    }

    log.debug("BookEJBLocal class: {}", bookEJBRemote == null ? "EJB not initialized" : bookEJBRemote.getClass().getCanonicalName());

    List<Book> books = bookEJBRemote.getBooks();

    log.debug("Books returned by EJB: {}", books);

    request.setAttribute("bookClass", books.get(0).getClass().getCanonicalName());
    request.setAttribute("beanClass", bookEJBRemote.getClass().getCanonicalName());
    request.setAttribute("interface", "remote");
    request.setAttribute("books", books);

    getServletContext().getRequestDispatcher("/index.jsp").forward(request, response);
    log.trace("Servlet BookServlet doGet end");
}
 

/**
 * Retrieves the initial context.
 * @return The context to use or <code>null</code> in case of an error.
 * @throws NamingException
 *         error obtaining the initial context
 * @since 0.7.5
 */
Context getInitialContext() throws NamingException {
    // We take the values from jndi.properties but override the port
    final Hashtable<String, String> environment =
        new Hashtable<String, String>();
    environment.put(Context.INITIAL_CONTEXT_FACTORY,
            "com.sun.jndi.rmi.registry.RegistryContextFactory");
    environment.put(Context.PROVIDER_URL, "rmi://localhost:" + port);
    return new InitialContext(environment);
}
 

@GET
@Path("/jndi/{namespace}")
public JsonObject jndi(@PathParam("namespace") String namespace) throws NamingException {
    JsonObjectBuilder builder = Json.createObjectBuilder();
    InitialContext c = new InitialContext();
    NamingEnumeration<NameClassPair> list = c.list(namespace);
    while (list.hasMoreElements()) {
        NameClassPair nameClassPair = list.nextElement();
        String name = nameClassPair.getName();
        String type = nameClassPair.getClassName();
        builder.add(name, type);
    }
    return builder.build();
}
 

@Override
public void setMessageDrivenContext(final MessageDrivenContext ctx) throws EJBException {
    this.mdbContext = ctx;
    try {
        final ConnectionFactory connectionFactory = (ConnectionFactory) new InitialContext().lookup("java:comp/env/jms");
        mdbInvoker = new MdbInvoker(connectionFactory, this);
    } catch (final Exception e) {
        throw new EJBException(e);
    }
}
 

public EJBObject returnEJBObject() throws javax.ejb.EJBException {
    EncSingletonObject data = null;

    try {
        final InitialContext ctx = new InitialContext();

        final EncSingletonHome home = (EncSingletonHome) ctx.lookup("java:comp/env/singleton/rmi-iiop/home");
        data = home.create();

    } catch (final Exception e) {
        throw new javax.ejb.EJBException(e);
    }
    return data;
}
 

/**
 * @throws javax.ejb.CreateException
 */
public void ejbCreate() throws javax.ejb.CreateException {
    try {
        jndiContext = new InitialContext();
    } catch (final Exception e) {
        throw new CreateException("Can not get the initial context: " + e.getMessage());
    }
}
 

@Test
public void getBpmPlatformXmlLocationFromJndi() throws NamingException, MalformedURLException {
  Context context = new InitialContext();
  context.bind("java:comp/env/" + BPM_PLATFORM_XML_LOCATION, BPM_PLATFORM_XML_FILE_ABSOLUTE_LOCATION);

  URL url = new TomcatParseBpmPlatformXmlStep().lookupBpmPlatformXmlLocationFromJndi();

  assertEquals(new File(BPM_PLATFORM_XML_FILE_ABSOLUTE_LOCATION).toURI().toURL(), url);
}
 

private InitialContext getInitialContext() throws NamingException {
    Properties env = new Properties();
    if (System.getProperty("java.naming.provider.url") == null) {
        env.put("java.naming.provider.url", "tcp://localhost:61616");
    }
    if (System.getProperty("java.naming.factory.initial") == null) {
        env.put("java.naming.factory.initial",
            "org.apache.activemq.jndi.ActiveMQInitialContextFactory");
    }
    return new InitialContext(env);
}
 

private TestingEntityLocalHome lookupTestingEntityBean() {
    try {
        Context c = new InitialContext();
        TestingEntityLocalHome rv = (TestingEntityLocalHome) c.lookup("java:comp/env/TestingEntityBean");
        return rv;
    } catch (NamingException ne) {
        Logger.getLogger(getClass().getName()).log(Level.SEVERE, "exception caught", ne);
        throw new RuntimeException(ne);
    }
}