samplerealmauthenticator.java

解觖java技术中后台无法上传数给的情况

/*
 * $Header: /cvsroot/mvnforum/mvnforum/src/com/mvnforum/auth/SampleRealmAuthenticator.java,v 1.10 2006/04/14 17:05:26 minhnn Exp $
 * $Author: minhnn $
 * $Revision: 1.10 $
 * $Date: 2006/04/14 17:05:26 $
 *
 * ====================================================================
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package com.mvnforum.auth;

import net.myvietnam.mvncore.exception.DatabaseException;
import net.myvietnam.mvncore.exception.ObjectNotFoundException;
import net.myvietnam.mvncore.util.StringUtil;
import net.myvietnam.mvncore.web.GenericRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.mvnforum.db.DAOFactory;

/**
 * This is a sample class that implement Authenticator for authenticate user when the system use
 * authentication type: Realm <p>
 * Use this class as a sample to write your own Single Sign-On solution
 */
public class SampleRealmAuthenticator extends AbstractSampleAuthenticator {

    private static Log log = LogFactory.getLog(SampleRealmAuthenticator.class);

    public String getRemoteUser(GenericRequest request) {

        String memberName = request.getRemoteUser();
        memberName = StringUtil.getEmptyStringIfNull(memberName);
        //log.debug("Member Name is " + memberName);
        if (memberName.length() > 0) {
            try {
                DAOFactory.getMemberDAO().findByAlternateKey_MemberName(memberName);
            } catch (ObjectNotFoundException onfe) {
                // memberName does not exist, let to add an account "memberName"
                try {
                    createAccount(memberName, request);
                } catch (Exception e) {
                    // just return null;
                    log.error("Error is :" + e);
                    return null;
                }
            } catch (DatabaseException de) {
                // do nothing,
                log.error("Error is :" + de);
            }
        }
        //log.debug("Member Name is " + memberName);
        return memberName;
    }
}