jaxrgetmyobjects.java

《j2ee经典实例详解》的源代码。原书无附带光盘。介绍的是一个在线银行系统的例子。绝对难得

/*
 * Copyright (c) 2005 Sun Microsystems, Inc.  All rights reserved.  U.S.
 * Government Rights - Commercial software.  Government users are subject
 * to the Sun Microsystems, Inc. standard license agreement and
 * applicable provisions of the FAR and its supplements.  Use is subject
 * to license terms.
 *
 * This distribution may include materials developed by third parties.
 * Sun, Sun Microsystems, the Sun logo, Java and J2EE are trademarks
 * or registered trademarks of Sun Microsystems, Inc. in the U.S. and
 * other countries.
 *
 * Copyright (c) 2005 Sun Microsystems, Inc. Tous droits reserves.
 *
 * Droits du gouvernement americain, utilisateurs gouvernementaux - logiciel
 * commercial. Les utilisateurs gouvernementaux sont soumis au contrat de
 * licence standard de Sun Microsystems, Inc., ainsi qu'aux dispositions
 * en vigueur de la FAR (Federal Acquisition Regulations) et des
 * supplements a celles-ci.  Distribue par des licences qui en
 * restreignent l'utilisation.
 *
 * Cette distribution peut comprendre des composants developpes par des
 * tierces parties. Sun, Sun Microsystems, le logo Sun, Java et J2EE
 * sont des marques de fabrique ou des marques deposees de Sun
 * Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
 */


import javax.xml.registry.*;
import javax.xml.registry.infomodel.*;
import java.net.*;
import java.security.*;
import java.util.*;


/**
 * The JAXRGetMyObjects class consists of a main method, a
 * makeConnection method, an executeQuery method, and some
 * private helper methods. It obtains all the registry
 * objects owned by the user and displays their keys, names,
 * and descriptions.
 */
public class JAXRGetMyObjects {
    Connection connection = null;

    public JAXRGetMyObjects() {
    }

    public static void main(String[] args) {
        ResourceBundle bundle = ResourceBundle.getBundle("JAXRExamples");

        String queryURL = bundle.getString("query.url");
        String publishURL = bundle.getString("publish.url");

        String username = bundle.getString("registry.username");
        String password = bundle.getString("registry.password");

        JAXRGetMyObjects jq = new JAXRGetMyObjects();

        jq.makeConnection(queryURL, publishURL);

        jq.executeQuery(username, password);
    }

    /**
     * Establishes a connection to a registry.
     *
     * @param queryUrl        the URL of the query registry
     * @param publishUrl        the URL of the publish registry
     */
    public void makeConnection(String queryUrl, String publishUrl) {
        /*
         * Specify proxy information in case you
         *  are going beyond your firewall.
         */
        ResourceBundle bundle = ResourceBundle.getBundle("JAXRExamples");
        String httpProxyHost = bundle.getString("http.proxyHost");
        String httpProxyPort = bundle.getString("http.proxyPort");
        String httpsProxyHost = bundle.getString("https.proxyHost");
        String httpsProxyPort = bundle.getString("https.proxyPort");

        /*
         * Define connection configuration properties.
         * For simple queries, you need the query URL.
         */
        Properties props = new Properties();
        props.setProperty("javax.xml.registry.queryManagerURL", queryUrl);
        props.setProperty("javax.xml.registry.lifeCycleManagerURL", publishUrl);
        props.setProperty("com.sun.xml.registry.http.proxyHost", httpProxyHost);
        props.setProperty("com.sun.xml.registry.http.proxyPort", httpProxyPort);
        props.setProperty("com.sun.xml.registry.https.proxyHost", httpsProxyHost);
        props.setProperty("com.sun.xml.registry.https.proxyPort", httpsProxyPort);

        try {
            // Create the connection, passing it the 
            // configuration properties
            ConnectionFactory factory = ConnectionFactory.newInstance();
            factory.setProperties(props);
            connection = factory.createConnection();
            System.out.println("Created connection to registry");
        } catch (Exception e) {
            e.printStackTrace();

            if (connection != null) {
                try {
                    connection.close();
                } catch (JAXRException je) {
                }
            }
        }
    }

    /**
     * Searches for objects owned by the user and
     * displays data about them.
     *
     * @param username  the username for the registry
     * @param password  the password for the registry
     */
    public void executeQuery(String username, String password) {
        RegistryService rs = null;
        BusinessQueryManager bqm = null;

        try {
            // Get registry service and query manager
            rs = connection.getRegistryService();
            bqm = rs.getBusinessQueryManager();
            System.out.println("Got registry service and " + "query manager");

            // Get authorization from the registry
            PasswordAuthentication passwdAuth =
                new PasswordAuthentication(username, password.toCharArray());

            Set creds = new HashSet();
            creds.add(passwdAuth);
            connection.setCredentials(creds);
            System.out.println("Established security credentials");

            // Get all objects owned by me
            BulkResponse response = bqm.getRegistryObjects();
            Collection objects = response.getCollection();

            // Display keys of the objects found
            Iterator objIter = objects.iterator();

            if (!(objIter.hasNext())) {
                System.out.println("No objects found");
            } else {
                while (objIter.hasNext()) {
                    RegistryObject obj = (RegistryObject) objIter.next();
                    System.out.println("Object key id: " + getKey(obj));
                    System.out.println("Object name is: " + getName(obj));
                    System.out.println("Object description is: " +
                        getDescription(obj));

                    // Print spacer between objects
                    System.out.println(" --- ");
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // At end, close connection to registry
            if (connection != null) {
                try {
                    connection.close();
                } catch (JAXRException je) {
                }
            }
        }
    }

    /**
     * Returns the name value for a registry object.
     *
     * @param ro        a RegistryObject
     * @return                the String value
     */
    private String getName(RegistryObject ro) throws JAXRException {
        try {
            return ro.getName()
                     .getValue();
        } catch (NullPointerException npe) {
            return "No Name";
        }
    }

    /**
     * Returns the description value for a registry object.
     *
     * @param ro        a RegistryObject
     * @return                the String value
     */
    private String getDescription(RegistryObject ro) throws JAXRException {
        try {
            return ro.getDescription()
                     .getValue();
        } catch (NullPointerException npe) {
            return "No Description";
        }
    }

    /**
     * Returns the key id value for a registry object.
     *
     * @param ro        a RegistryObject
     * @return                the String value
     */
    private String getKey(RegistryObject ro) throws JAXRException {
        try {
            return ro.getKey()
                     .getId();
        } catch (NullPointerException npe) {
            return "No Key";
        }
    }
}