authorizationfactory.java

一套完整的工商12315的源程序jsp部分在12315里,后台JAVA部分在gs12315src里,没有打包数据库.

package com.gs.db;

/**
 * 这个abstract类定义了进行身份认证的框架。 static方法 getAuthorization(String,String) 
 * 和 getAnonymousAuthorization() 直接供应用程序调用以生成 Authorization 证明<p>
 *
 * An abstract class that defines a framework for providing authorization
 * services in Ioffice. The static getAuthorization(String,String) and
 * getAnonymousAuthorization() methods should be called directly from
 * applications using ioffice kernel in order to obtain Authorization tokens.
 *
 */
public abstract class AuthorizationFactory {
    public static final int PULSE_INTERVAL_SEC=30;
    /**
     * The default class to instantiate is database implementation.
     */
    private static String className =
        "com.gs.db.dbimp.DbAuthorizationFactory";

    private static AuthorizationFactory factory = null;

    /**
     * Returns the Authorization token associated with the specified username
     * and password. If the username and password do not match the record of
     * any user in the system, the method throws an UnauthorizedException.<p>
     *
     * When using most implementations of this class, authorization tokens
     * should be cached. A convenient place to store a token is often in the
     * HttpSession.
     *
     * @param username the username to create an Authorization with.
     * @param password the password to create an Authorization with.
     * @return an Authorization token if the username and password are correct.
     * @throws UnauthorizedException if the username and password do not match
     *      any existing user.
     */
    public static Authorization getAuthorization(String username,
            String password) throws UnauthorizedException,AlreadyLoginException
    {
        loadAuthorizationFactory();
        return factory.createAuthorization(username, password);
    }
   
    /**
     * Returns the anonymous user Authorization.
     *
     * @return an anonymous Authorization token.
     */
    public static Authorization getAnonymousAuthorization() {
        loadAuthorizationFactory();
        return factory.createAnonymousAuthorization();
    }

    /**
     * Creates Authorization tokens for users. This method is implemented by
     * concrete subclasses of AuthorizationFactory.
     *
     * @param username the username to create an Authorization with.
     * @param password the password to create an Authorization with.
     * @return an Authorization token if the username and password are correct.
     * @throws UnauthorizedException if the username and password do not match
     *      any existing user.
     */
    public abstract Authorization createAuthorization(String username,
            String password) throws UnauthorizedException, AlreadyLoginException;

    /**
     * Creates anonymous Authorization tokens. This method is implemented by
     * concrete subclasses AuthorizationFactory.
     *
     * @return an anonymous Authorization token.
     */
    public abstract Authorization createAnonymousAuthorization();

    /**
     * Loads a concrete AuthorizationFactory that can be used generate
     * Authorization tokens for authorized users.<p>
     *
     * By default, the implementation used will be an instance of
     * DbAuthorizationFactory -- the standard database implementation that uses
     * the InterOffice user table. A different factory can be specified by setting the
     * InterOffice property "AuthorizationFactory.className". However, you must
     * restart InterOffice for any change to take effect.
     */
    private static void loadAuthorizationFactory() {
        if (factory == null) {
            //Use className as a convenient object to get a lock on.
            synchronized(className) {
                if (factory == null) {
                    //See if the classname has been set as a InterOffice property.
                    String classNameProp = PropertyManager.getProperty(
                        "AuthorizationFactory.className"
                    );
                    if (classNameProp != null) {
                        className = classNameProp;
                    }
                    try {
                        Class c = Class.forName(className);
                        factory = (AuthorizationFactory)c.newInstance();
                    }
                    catch (Exception e) {
                        System.err.println("Exception loading class: " + e);
                        e.printStackTrace();
                    }
                }
            }
        }
    }
}