adminconnectionfactory.java

实现了Jms的服务器源码,支持多种适配器,DB,FTP,支持多种数据库

/**
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of Exoffice Technologies.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "Exolab"
 *    nor may "Exolab" appear in their names without prior written
 *    permission of Exoffice Technologies. Exolab is a registered
 *    trademark of Exoffice Technologies.
 *
 * 5. Due credit should be given to the Exolab Project
 *    (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2001-2003 (C) Exoffice Technologies Inc. All Rights Reserved.
 *
 * $Id: AdminConnectionFactory.java,v 1.12 2003/08/18 10:15:32 tanderson Exp $
 */
package org.exolab.jms.administration;

import java.net.MalformedURLException;

import javax.jms.JMSException;
import javax.jms.JMSSecurityException;

import org.exolab.core.util.URI;
import org.exolab.jms.administration.http.HttpJmsAdminConnection;
import org.exolab.jms.administration.http.SslHttpJmsAdminConnection;
import org.exolab.jms.administration.intravm.IntravmJmsAdminConnection;
import org.exolab.jms.administration.mipc.IpcJmsAdminConnection;
import org.exolab.jms.administration.mipc.SslIpcJmsAdminConnection;
import org.exolab.jms.administration.rmi.RmiJmsAdminConnection;
import org.exolab.jms.config.types.SchemeType;


/**
 * This class is a factory for creating {@link AdminConnection} instances.
 *
 * @version     $Revision: 1.12 $ $Date: 2003/08/18 10:15:32 $
 * @author      <a href="mailto:[e-mail]">Tim Anderson</a>
 * @author      <a href="mailto:[e-mail]">Knut Lerpold</a>
 * @see         JmsAdminServerIfc
 */
public class AdminConnectionFactory {

    /**
     * Attempt to establish an admin connection
     *
     * @param url the OpenJMS server URL
     * @param username the admin user name
     * @param password the admin user password
     * @return an admin connection
     * @throws JMSException if a connection cannot be established
     * @throws MalformedURLException if <code>url</code> is invalid
     */
    private static AdminConnection getConnection(String url, String username,
                                                 String password)
        throws JMSException, MalformedURLException {
        // made private for the time being. Need to sort out the 
        // AdminConnection interface post 0.7.6
        AdminConnection result = null;

        URI parser = null;
        try {
            parser = new URI(url);
        } catch (URI.MalformedURIException exception) {
            throw new MalformedURLException(exception.getMessage());
        }

        String protocol = parser.getScheme();
        String host = parser.getHost();
        int port = parser.getPort();
        String path = parser.getPath();
        if (host != null) {
            if (host.trim().length() == 0) {
                host = null;
            }
        }
        if (path != null) {
            if (path.trim().length() == 0) {
                path = null;
            } else if (path.startsWith("/")) {
                path = path.substring(1);
                if (path.length() == 0) {
                    path = null;
                }
            }
        }

        SchemeType scheme = null;
        try {
            scheme = SchemeType.valueOf(protocol);
        } catch (IllegalArgumentException exception) {
            throw new MalformedURLException("Invalid scheme: " + protocol);
        }

        // check URL validity
        switch (scheme.getType()) {
            case SchemeType.TCP_TYPE:
            case SchemeType.TCPS_TYPE:
                if (host == null || port == -1 || path != null) {
                    throw new MalformedURLException("Invalid URL: " + url);
                }
                break;
            case SchemeType.RMI_TYPE:
            case SchemeType.HTTP_TYPE:
            case SchemeType.HTTPS_TYPE:
                if (host == null || port == -1) {
                    throw new MalformedURLException("Invalid URL: " + url);
                }
                break;
            case SchemeType.EMBEDDED_TYPE:
                if (host != null || port != -1 || path != null) {
                    throw new MalformedURLException("Invalid URL: " + url);
                }
                break;
        }

        // create the connection
        switch (scheme.getType()) {
            case SchemeType.TCP_TYPE:
                result = new IpcJmsAdminConnection(host, port, username,
                    password);
                break;
            case SchemeType.TCPS_TYPE:
                result = new SslIpcJmsAdminConnection(host, port, username,
                    password);
                break;
            case SchemeType.RMI_TYPE:
                result = new RmiJmsAdminConnection(host, port, path,
                    username, password);
                break;
            case SchemeType.HTTP_TYPE:
                result = new HttpJmsAdminConnection(host, port, path,
                    username, password);
                break;
            case SchemeType.HTTPS_TYPE:
                result = new SslHttpJmsAdminConnection(host, port, path,
                    username, password);
                break;
            case SchemeType.EMBEDDED_TYPE:
                result = new IntravmJmsAdminConnection(username, password);
                break;
        }

        return result;
    }

    /**
     * Create an unauthenticated admin connection, using the specified server
     * URL
     *
     * @param url the OpenJMS server URL
     * @return JmsAdminServerIfc the administration API
     * @throws JMSException if a connection cannot be established
     * @throws MalformedURLException if <code>url</code> is invalid
     */
    public static JmsAdminServerIfc create(String url)
        throws JMSException, MalformedURLException {
        return create(url, null, null);
    }

    /**
     * Create an authenticated admin connection, using the specified server
     * URL, name, and password
     *
     * @param url the OpenJMS server URL
     * @param username the admin user name
     * @param password the admin user password
     * @return JmsAdminServerIfc the administration API
     * @throws JMSException if a connection cannot be established
     * @throws MalformedURLException if <code>url</code> is invalid
     */
    public static JmsAdminServerIfc create(String url, String username,
                                           String password)
        throws JMSException, MalformedURLException {
        JmsAdminServerIfc result = null;

        URI parser = null;
        try {
            parser = new URI(url);
        } catch (URI.MalformedURIException exception) {
            throw new MalformedURLException(exception.getMessage());
        }
        String protocol = parser.getScheme();
        String host = parser.getHost();
        int port = parser.getPort();
        String path = parser.getPath();
        if (host != null) {
            if (host.trim().length() == 0) {
                host = null;
            }
        }
        if (path != null) {
            if (path.trim().length() == 0) {
                path = null;
            } else if (path.startsWith("/")) {
                path = path.substring(1);
                if (path.length() == 0) {
                    path = null;
                }
            }
        }

        SchemeType scheme = null;
        try {
            scheme = SchemeType.valueOf(protocol);
        } catch (IllegalArgumentException exception) {
            throw new MalformedURLException("Invalid scheme: " + protocol);
        }

        // check URL validity
        switch (scheme.getType()) {
            case SchemeType.TCP_TYPE:
            case SchemeType.TCPS_TYPE:
                if (host == null || port == -1 || path != null) {
                    throw new MalformedURLException("Invalid URL: " + url);
                }
                break;
            case SchemeType.RMI_TYPE:
            case SchemeType.HTTP_TYPE:
            case SchemeType.HTTPS_TYPE:
                if (host == null || port == -1) {
                    throw new MalformedURLException("Invalid URL: " + url);
                }
                break;
            case SchemeType.EMBEDDED_TYPE:
                if (host != null || port != -1 || path != null) {
                    throw new MalformedURLException("Invalid URL: " + url);
                }
                break;
        }

        // create the connection
        switch (scheme.getType()) {
            case SchemeType.TCP_TYPE:
                result = new IpcJmsAdminConnection(host, port, username,
                    password);
                break;
            case SchemeType.TCPS_TYPE:
                result = new SslIpcJmsAdminConnection(host, port, username,
                    password);
                break;
            case SchemeType.RMI_TYPE:
                result = new RmiJmsAdminConnection(host, port, path,
                    username, password);
                break;
            case SchemeType.HTTP_TYPE:
                result = new HttpJmsAdminConnection(host, port, path,
                    username, password);
                break;
            case SchemeType.HTTPS_TYPE:
                result = new SslHttpJmsAdminConnection(host, port, path,
                    username, password);
                break;
            case SchemeType.EMBEDDED_TYPE:
                result = new IntravmJmsAdminConnection(username, password);
                break;
        }
        return result;
    }

} //-- AdminConnectionFactory