Example usage for javax.naming Context lookup

List of usage examples for javax.naming Context lookup

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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:Main.java

public static void main(String[] argv) throws Exception {
    String url = "iiop://localhost/";
    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
    env.put(Context.PROVIDER_URL, url);

    Context ctx = new InitialContext(env);
    Object obj = ctx.lookup("Sample");
}

From source file:Print.java

public static void main(String[] args) throws Exception {
    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");

    env.put(Context.PROVIDER_URL, "file:/tmp/marketing");

    Context initCtx = new InitialContext(env);
    File f = (File) initCtx.lookup("reports/report1.txt");
    if (f != null) {
        BufferedReader br = new BufferedReader(new FileReader(f));
        String l = null;/*from   ww w .ja v  a2s  . co  m*/
        while ((l = br.readLine()) != null)
            System.out.println(l);
    }

}

From source file:Bind.java

License:asdf

public static void main(String[] args) throws Exception {
    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
    env.put(Context.PROVIDER_URL, "file:/tmp");

    Context initCtx = new InitialContext(env);
    initCtx.rebind("Susan", new Car("Toyota", "Camry"));
    Car c = (Car) initCtx.lookup("Susan");
    System.out.println(c);/*from   w  w  w  .jav a2s  .com*/

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String url = "iiop://localhost/";
    Hashtable<String, String> env = new Hashtable<String, String>();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory");
    env.put(Context.PROVIDER_URL, url);

    Context ctx = new InitialContext(env);
    // Create a subcontext.
    Context childCtx = ctx.createSubcontext("child");

    // Destroy the subcontext.
    ctx.destroySubcontext("child");

    Context obj = (Context) childCtx.lookup("grandChild");
    String fullname = obj.getNameInNamespace();
}

From source file:Main.java

public static void main(String[] argv) {
    Connection connection = null;
    Statement statement;/*from  w w  w . ja  v a2s  .c o m*/
    ResultSet rs;
    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();

        System.out.println("getURL() - " + md.getURL());
        System.out.println("getUserName() - " + md.getUserName());
        System.out.println("getDatabaseProductVersion - " + md.getDatabaseProductVersion());
        System.out.println("getDriverMajorVersion - " + md.getDriverMajorVersion());
        System.out.println("getDriverMinorVersion - " + md.getDriverMinorVersion());
        System.out.println("nullAreSortedHigh - " + md.nullsAreSortedHigh());

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

        System.out.println("getTableTypes()");
        rs = md.getTableTypes();
        while (rs.next()) {
            System.out.println(rs.getString(1));
        }
        System.out.println("getTables()");
        rs = md.getTables("accounts", "", "%", new String[0]);
        while (rs.next()) {
            System.out.println(rs.getString("TABLE_NAME"));
        }
        System.out.println("Transaction Support");
        System.out.println("getDefaultTransactionIsolation() - " + md.getDefaultTransactionIsolation());
        System.out
                .println("dataDefinitionIgnoredInTransactions() - " + md.dataDefinitionIgnoredInTransactions());

        System.out.println("General Source Information");
        System.out.println("getMaxTablesInSelect - " + md.getMaxTablesInSelect());
        System.out.println("getMaxColumnsInTable - " + md.getMaxColumnsInTable());
        System.out.println("getTimeDateFunctions - " + md.getTimeDateFunctions());
        System.out.println("supportsCoreSQLGrammar - " + md.supportsCoreSQLGrammar());

        System.out.println("getTypeInfo()");
        rs = md.getTypeInfo();
        while (rs.next()) {
            System.out.println(rs.getString(1));
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.fusesource.examples.activemq.SimpleProducer.java

public static void main(String args[]) {
    Connection connection = null;

    try {// w  w w  . j a v a  2 s.  c  om
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        Destination destination = (Destination) context.lookup(DESTINATION_NAME);

        connection = factory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(destination);

        producer.setTimeToLive(MESSAGE_TIME_TO_LIVE_MILLISECONDS);

        for (int i = 1; i <= NUM_MESSAGES_TO_BE_SENT; i++) {
            TextMessage message = session.createTextMessage(i + ". message sent");
            LOG.info("Sending to destination: " + destination.toString() + " this text: '" + message.getText());
            producer.send(message);
            Thread.sleep(MESSAGE_DELAY_MILLISECONDS);
        }

        // Cleanup
        producer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

From source file:Lookup.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {/*w w w.  j  a  v a 2 s. c  o m*/
        // Create the initial context
        Context ctx = new InitialContext(env);

        // Perform lookup and cast to target type
        LdapContext b = (LdapContext) ctx.lookup("cn=Rosanna Lee,ou=People");

        System.out.println(b);

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        System.out.println("Lookup failed: " + e);
    }
}

From source file:com.fusesource.examples.activemq.SimplePublisher.java

public static void main(String args[]) {
    Connection connection = null;

    try {//  w w  w.  j  av  a2  s . co m
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);

        connection = factory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic(DESTINATION_NAME);

        MessageProducer producer = session.createProducer(topic);

        producer.setTimeToLive(MESSAGE_TIME_TO_LIVE_MILLISECONDS);

        for (int i = 1; i <= NUM_MESSAGES_TO_BE_SENT; i++) {
            TextMessage message = session.createTextMessage(i + ". message sent");
            LOG.info("Sending to destination: " + DESTINATION_NAME + " this text: '" + message.getText());
            producer.send(message);
            Thread.sleep(MESSAGE_DELAY_MILLISECONDS);
        }

        // Cleanup
        producer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

From source file:com.fusesource.examples.activemq.SimpleConsumer.java

public static void main(String args[]) {
    Connection connection = null;

    try {/*from   w  w  w .  j  a v a 2  s  .  co  m*/
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        Destination destination = (Destination) context.lookup(DESTINATION_NAME);

        connection = factory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        MessageConsumer consumer = session.createConsumer(destination);

        LOG.info("Start consuming messages from " + destination.toString() + " with "
                + MESSAGE_TIMEOUT_MILLISECONDS + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

From source file:com.fusesource.examples.activemq.DurableSubscriber.java

public static void main(String args[]) {
    Connection connection = null;

    try {/* w w  w.j  a  v a  2s . c  o  m*/
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        connection = factory.createConnection();
        connection.setClientID(System.getProperty("clientID"));
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.CLIENT_ACKNOWLEDGE);
        String topicName = System.getProperty("topic");

        Topic topic = session.createTopic(topicName);
        MessageConsumer consumer = session.createDurableSubscriber(topic, "Test_Durable_Subscriber");

        LOG.info("Start consuming messages from " + topicName + " with " + MESSAGE_TIMEOUT_MILLISECONDS
                + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}