qspconfiguratorfactory.java

pos机交易实现源代码 含金融卡交易8583协议实现 开发环境：linux 典型应用：嵌入系统开发 仅供参考

/*
 * Copyright (c) 2000 jPOS.org.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 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 end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *    "This product includes software developed by the jPOS project 
 *    (http://www.jpos.org/)". Alternately, this acknowledgment may 
 *    appear in the software itself, if and wherever such third-party 
 *    acknowledgments normally appear.
 *
 * 4. The names "jPOS" and "jPOS.org" must not be used to endorse 
 *    or promote products derived from this software without prior 
 *    written permission. For written permission, please contact 
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "jPOS",
 *    nor may "jPOS" appear in their name, without prior written
 *    permission of the jPOS project.
 *
 * THIS SOFTWARE IS PROVIDED ``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 THE JPOS PROJECT 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the jPOS Project.  For more
 * information please see <http://www.jpos.org/>.
 */

package org.jpos.apps.qsp;

import java.util.StringTokenizer;
import org.jpos.core.ConfigurationException;

/**
 * @author <a href="mailto:[e-mail]">Alejandro P. Revilla</a>
 * @version $Revision: 1.4 $ $Date: 2001/11/17 21:54:57 $
 */
public class QSPConfiguratorFactory {
    public static final String PACKAGEPREFIX = 
	"org.jpos.apps.qsp.config.Config";

   /**
    * creates an instance of a QSPConfigurator<br>
    * (org.jpos.apps.qsp.config.* class)
    * @param tagName
    * @throws ConfigurationException
    */
    public static QSPConfigurator create (String tagName) 
	throws ConfigurationException
    {
	String className = toClassName (tagName);
	try {
            Class c = Class.forName(className);
	    return (QSPConfigurator) c.newInstance();
	} catch (Exception e) {
	    throw new ConfigurationException ("can't create "+className, e);
	}
    }
    private static String toClassName (String s) {
	boolean capitalize = true;
        StringTokenizer st = new StringTokenizer (s, ":");
        String packagePrefix;
       
        if (st.countTokens () == 2) {
            packagePrefix = st.nextToken();
            s = st.nextToken();
        } else
            packagePrefix = PACKAGEPREFIX;
            
	s = s.toLowerCase();
	StringBuffer sb = new StringBuffer(packagePrefix);
	for (int i=0; i<s.length(); i++) {
	    char c = s.charAt(i);
	    if (c == '-') {
		capitalize = true;
		continue;
	    }
	    sb.append (capitalize ? Character.toUpperCase(c) : c);
	    capitalize = false;
	}
	return sb.toString();
    }
}