Example usage for javax.naming Context lookup

Introduction

In this page you can find the example usage for javax.naming Context lookup.

Prototype

public Object lookup(String name) throws NamingException;

Source Link

Document

Retrieves the named object.

Usage

From source file:opa.filter.LoadInitiativeSetup.java

@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain fc)
        throws IOException, ServletException {

    Connection conn = null;//  w w w  . ja  v  a2  s  .  c  o m

    try {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;

        /*
         * select the fields from initiative_setup and translate them to the
         * InitiativeSetup model.
         * 
         * TODO: use a real object-relational-mapper like hibernate.
         */
        Context ctx = new InitialContext();
        DataSource ds = (DataSource) ctx.lookup("java:comp/env/" + jdbcJndi);
        conn = ds.getConnection();

        ResultSet rs = conn.createStatement()
                .executeQuery("select I.*, L.language from initiative_setup I, languages L "
                        + "where I.default_lang = L.lang_id");

        if (rs.next() == false) {
            log.fatal("Could not get info from initiative_setup table.");
            response.sendError(500);
        }

        InitiativeSetup setup = new InitiativeSetup();
        Map<String, Object> map = Utils.resultSetToMap(rs);

        try {
            BeanUtils.populate(setup, map);
        } catch (Exception e) {
            log.fatal("could not build InitiativeSetup from table initiative_setup");
            log.fatal(e, e);
            response.sendError(500);
        }

        request.getSession().setAttribute("initiativeSetup", setup);

    } catch (NamingException e) {
        log.fatal(e, e);
    } catch (SQLException e) {
        log.fatal(e, e);
    } finally {
        if (conn != null) {
            try {
                conn.close();
            } catch (SQLException e) {
                // bleh
            }
        }
    }

    fc.doFilter(req, res);
}

---

From source file:com.sun.socialsite.business.MailProvider.java

public MailProvider() throws StartupException {

    String connectionTypeString = Config.getProperty("mail.configurationType");
    if ("properties".equals(connectionTypeString)) {
        type = ConfigurationType.MAIL_PROPERTIES;
    }/*from   w ww  . j a  va 2  s  .c  o m*/
    jndiName = Config.getProperty("mail.jndi.name");
    mailHostname = Config.getProperty("mail.hostname");
    mailUsername = Config.getProperty("mail.username");
    mailPassword = Config.getProperty("mail.password");
    try {
        String portString = Config.getProperty("mail.port");
        if (portString != null) {
            mailPort = Integer.parseInt(portString);
        }
    } catch (Throwable t) {
        log.warn("mail server port not a valid integer, ignoring");
    }

    // init and connect now so we fail early
    if (type == ConfigurationType.JNDI_NAME) {
        String name = "java:comp/env/" + jndiName;
        try {
            Context ctx = (Context) new InitialContext();
            session = (Session) ctx.lookup(name);
        } catch (NamingException ex) {
            throw new StartupException("ERROR looking up mail-session with JNDI name: " + name);
        }
    } else {
        Properties props = new Properties();
        props.put("mail.smtp.host", mailHostname);
        if (mailUsername != null && mailPassword != null) {
            props.put("mail.smtp.auth", "true");
        }
        if (mailPort != -1) {
            props.put("mail.smtp.port", "" + mailPort);
        }
        session = Session.getDefaultInstance(props, null);
    }

    try {
        Transport transport = getTransport();
        transport.close();
    } catch (Throwable t) {
        throw new StartupException("ERROR connecting to mail server", t);
    }

}

---

From source file:nl.trivento.albero.repositories.DatabaseRepository.java

private DataSource createJndiDataSource(Map<String, String> parameters) throws ConfigurationException {
    try {//  w  w w . ja v a 2s .  c o  m
        Context context = (Context) new InitialContext().lookup("java:/comp/env");

        return (DataSource) context.lookup(parameters.get(JNDI_NAME));
    } catch (NamingException exception) {
        throw new ConfigurationException(exception, "can't obtain data source from JNDI");
    }
}

---

From source file:org.gss_project.gss.server.webdav.milton.GssSecurityManager.java

private ExternalAPI getService() throws RpcException {
    try {//from  w w  w  .j a  v  a  2  s.com
        final Context ctx = new InitialContext();
        final Object ref = ctx.lookup(getConfiguration().getString("externalApiPath"));
        return (ExternalAPI) PortableRemoteObject.narrow(ref, ExternalAPI.class);
    } catch (final NamingException e) {
        log.error("Unable to retrieve the ExternalAPI EJB", e);
        throw new RpcException("An error occurred while contacting the naming service");
    }
}

---

From source file:org.dhatim.db.JndiDataSource.java

private Object lookup(String jndi) {
    Context context = null;
    try {//from   w ww.  jav a 2 s.co m
        context = new InitialContext();
        return context.lookup(jndi);
    } catch (NamingException e) {
        throw new SmooksConfigurationException("JNDI Context lookup failed for '" + jndi + "'.", e);
    } finally {
        if (context != null) {
            try {
                context.close();
            } catch (NamingException e) {
                throw new SmooksConfigurationException(
                        "Error closing Naming Context after looking up DataSource JNDI '" + datasourceJndi
                                + "'.",
                        e);
            }
        }
    }
}

---

From source file:org.ualerts.chat.database.EmbeddedHsqlDatabaseServer.java

private boolean wantEmbeddedDatabase() {
    boolean useEmbedded = false;
    try {//from   ww w  .ja v a 2  s . c o  m
        Context initCtx = new InitialContext();
        DataSource ds = (DataSource) initCtx.lookup(dataSourceName);
        Class<?> dataSourceClass = ds.getClass();
        Method urlMethod = dataSourceClass.getMethod("getUrl");
        String url = (String) urlMethod.invoke(ds);
        useEmbedded = url.endsWith("/" + DEFAULT_DATABASE_NAME);
    } catch (NoSuchMethodException ex) {
        logger.warn("data source has no accessor for the URL");
    } catch (IllegalAccessException ex) {
        logger.warn("cannot access the data source URL");
    } catch (InvocationTargetException ex) {
        logger.warn("error accessing the data source URL");
    } catch (NamingException ex) {
        logger.warn("JNDI lookup failed: " + ex);
    }
    return useEmbedded;
}

---

From source file:com.microsoft.azure.servicebus.samples.jmstopicquickstart.JmsTopicQuickstart.java

public void run(String connectionString) throws Exception {

    // The connection string builder is the only part of the azure-servicebus SDK library 
    // we use in this JMS sample and for the purpose of robustly parsing the Service Bus 
    // connection string. 
    ConnectionStringBuilder csb = new ConnectionStringBuilder(connectionString);

    // set up the JNDI context 
    Hashtable<String, String> hashtable = new Hashtable<>();
    hashtable.put("connectionfactory.SBCF",
            "amqps://" + csb.getEndpoint().getHost() + "?amqp.idleTimeout=120000&amqp.traceFrames=true");
    hashtable.put("topic.TOPIC", "BasicTopic");
    hashtable.put("queue.SUBSCRIPTION1", "BasicTopic/Subscriptions/Subscription1");
    hashtable.put("queue.SUBSCRIPTION2", "BasicTopic/Subscriptions/Subscription2");
    hashtable.put("queue.SUBSCRIPTION3", "BasicTopic/Subscriptions/Subscription3");
    hashtable.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.qpid.jms.jndi.JmsInitialContextFactory");
    Context context = new InitialContext(hashtable);

    ConnectionFactory cf = (ConnectionFactory) context.lookup("SBCF");

    // Look up the topic
    Destination topic = (Destination) context.lookup("TOPIC");

    // we create a scope here so we can use the same set of local variables cleanly 
    // again to show the receive side seperately with minimal clutter
    {/*  w w  w  .j  a  v  a 2  s.co m*/
        // Create Connection
        Connection connection = cf.createConnection(csb.getSasKeyName(), csb.getSasKey());
        connection.start();
        // Create Session, no transaction, client ack
        Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);

        // Create producer
        MessageProducer producer = session.createProducer(topic);

        // Send messaGES
        for (int i = 0; i < totalSend; i++) {
            BytesMessage message = session.createBytesMessage();
            message.writeBytes(String.valueOf(i).getBytes());
            producer.send(message);
            System.out.printf("Sent message %d.\n", i + 1);
        }

        producer.close();
        session.close();
        connection.stop();
        connection.close();
    }

    // Look up the subscription (pretending it's a queue)
    receiveFromSubscription(csb, context, cf, "SUBSCRIPTION1");
    receiveFromSubscription(csb, context, cf, "SUBSCRIPTION2");
    receiveFromSubscription(csb, context, cf, "SUBSCRIPTION3");

    System.out.printf("Received all messages, exiting the sample.\n");
    System.out.printf("Closing queue client.\n");
}

---

From source file:it.infn.ct.security.actions.ExtendAccount.java

private void sendMail() throws MailException {
    javax.mail.Session session = null;/*  w  ww.j  a  va 2  s. c om*/
    try {
        Context initCtx = new InitialContext();
        Context envCtx = (Context) initCtx.lookup("java:comp/env");
        session = (javax.mail.Session) envCtx.lookup("mail/Users");

    } catch (Exception ex) {
        _log.error("Mail resource lookup error");
        _log.error(ex.getMessage());
        throw new MailException("Mail Resource not available");
    }

    Message mailMsg = new MimeMessage(session);
    try {
        mailMsg.setFrom(new InternetAddress(mailFrom, mailFrom));

        InternetAddress mailTos[] = new InternetAddress[1];
        mailTos[0] = new InternetAddress(mailTo);
        mailMsg.setRecipients(Message.RecipientType.TO, mailTos);

        mailMsg.setSubject(mailSubject);

        LDAPUser user = LDAPUtils.getUser(username);

        mailBody = mailBody.replaceAll("_USER_", user.getTitle() + " " + user.getGivenname() + " "
                + user.getSurname() + " (" + user.getUsername() + ")");

        mailMsg.setText(mailBody);

        Transport.send(mailMsg);

    } catch (UnsupportedEncodingException ex) {
        _log.error(ex);
        throw new MailException("Mail address format not valid");
    } catch (MessagingException ex) {
        _log.error(ex);
        throw new MailException("Mail message has problems");
    }

}

---

From source file:it.infn.ct.security.actions.ReactivateUser.java

private void sendMail(LDAPUser user) throws MailException {
    javax.mail.Session session = null;/*from  ww w  .  j  ava2  s .c  o m*/
    try {
        Context initCtx = new InitialContext();
        Context envCtx = (Context) initCtx.lookup("java:comp/env");
        session = (javax.mail.Session) envCtx.lookup("mail/Users");

    } catch (Exception ex) {
        _log.error("Mail resource lookup error");
        _log.error(ex.getMessage());
        throw new MailException("Mail Resource not available");
    }

    Message mailMsg = new MimeMessage(session);
    try {
        mailMsg.setFrom(new InternetAddress(mailFrom, mailFrom));

        InternetAddress mailTos[] = new InternetAddress[1];
        mailTos[0] = new InternetAddress(mailTo);
        mailMsg.setRecipients(Message.RecipientType.TO, mailTos);

        mailMsg.setSubject(mailSubject);

        mailBody = mailBody.replaceAll("_USER_", user.getTitle() + " " + user.getGivenname() + " "
                + user.getSurname() + " (" + user.getUsername() + ")");

        mailMsg.setText(mailBody);

        Transport.send(mailMsg);

    } catch (UnsupportedEncodingException ex) {
        _log.error(ex);
        throw new MailException("Mail address format not valid");
    } catch (MessagingException ex) {
        _log.error(ex);
        throw new MailException("Mail message has problems");
    }

}

---

From source file:DatabaseInfo.java

public void doGet(HttpServletRequest inRequest, HttpServletResponse outResponse)
        throws ServletException, IOException {

    PrintWriter out = null;//from   www . j a  va 2s.  com
    Connection connection = null;
    Statement statement;
    ResultSet rs;

    outResponse.setContentType("text/html");
    out = outResponse.getWriter();

    try {
        Context ctx = new InitialContext();
        DataSource ds = (DataSource) ctx.lookup("java:comp/env/jdbc/AccountsDB");
        connection = ds.getConnection();

        DatabaseMetaData md = connection.getMetaData();
        statement = connection.createStatement();

        out.println("<HTML><HEAD><TITLE>Database Server Information</TITLE></HEAD>");
        out.println("<BODY>");
        out.println("<H1>General Source Information</H1>");
        out.println("getURL() - " + md.getURL() + "<BR>");
        out.println("getUserName() - " + md.getUserName() + "<BR>");
        out.println("getDatabaseProductVersion - " + md.getDatabaseProductVersion() + "<BR>");
        out.println("getDriverMajorVersion - " + md.getDriverMajorVersion() + "<BR>");
        out.println("getDriverMinorVersion - " + md.getDriverMinorVersion() + "<BR>");
        out.println("nullAreSortedHigh - " + md.nullsAreSortedHigh() + "<BR>");

        out.println("<H1>Feature Support</H1>");
        out.println("supportsAlterTableWithDropColumn - " + md.supportsAlterTableWithDropColumn() + "<BR>");
        out.println("supportsBatchUpdates - " + md.supportsBatchUpdates() + "<BR>");
        out.println("supportsTableCorrelationNames - " + md.supportsTableCorrelationNames() + "<BR>");
        out.println("supportsPositionedDelete - " + md.supportsPositionedDelete() + "<BR>");
        out.println("supportsFullOuterJoins - " + md.supportsFullOuterJoins() + "<BR>");
        out.println("supportsStoredProcedures - " + md.supportsStoredProcedures() + "<BR>");
        out.println("supportsMixedCaseQuotedIdentifiers - " + md.supportsMixedCaseQuotedIdentifiers() + "<BR>");
        out.println("supportsANSI92EntryLevelSQL - " + md.supportsANSI92EntryLevelSQL() + "<BR>");
        out.println("supportsCoreSQLGrammar - " + md.supportsCoreSQLGrammar() + "<BR>");

        out.println("<H1>Data Source Limits</H1>");
        out.println("getMaxRowSize - " + md.getMaxRowSize() + "<BR>");
        out.println("getMaxStatementLength - " + md.getMaxStatementLength() + "<BR>");
        out.println("getMaxTablesInSelect - " + md.getMaxTablesInSelect() + "<BR>");
        out.println("getMaxConnections - " + md.getMaxConnections() + "<BR>");
        out.println("getMaxCharLiteralLength - " + md.getMaxCharLiteralLength() + "<BR>");

        out.println("<H1>SQL Object Available</H1>");
        out.println("getTableTypes()<BR><UL>");
        rs = md.getTableTypes();
        while (rs.next()) {
            out.println("<LI>" + rs.getString(1));
        }
        out.println("</UL>");

        out.println("getTables()<BR><UL>");
        rs = md.getTables("accounts", "", "%", new String[0]);
        while (rs.next()) {
            out.println("<LI>" + rs.getString("TABLE_NAME"));
        }
        out.println("</UL>");

        out.println("<H1>Transaction Support</H1>");
        out.println("getDefaultTransactionIsolation() - " + md.getDefaultTransactionIsolation() + "<BR>");
        out.println(
                "dataDefinitionIgnoredInTransactions() - " + md.dataDefinitionIgnoredInTransactions() + "<BR>");

        out.println("<H1>General Source Information</H1>");
        out.println("getMaxTablesInSelect - " + md.getMaxTablesInSelect() + "<BR>");
        out.println("getMaxColumnsInTable - " + md.getMaxColumnsInTable() + "<BR>");
        out.println("getTimeDateFunctions - " + md.getTimeDateFunctions() + "<BR>");
        out.println("supportsCoreSQLGrammar - " + md.supportsCoreSQLGrammar() + "<BR>");

        out.println("getTypeInfo()<BR><UL>");
        rs = md.getTypeInfo();
        while (rs.next()) {
            out.println("<LI>" + rs.getString(1));
        }
        out.println("</UL>");

        out.println("</BODY></HTML>");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

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