import org.jasig.cas.adaptors.radius.RadiusServer; //导入依赖的package包/类
@Override
protected final HandlerResult authenticateUsernamePasswordInternal(final UsernamePasswordCredential credential)
        throws GeneralSecurityException, PreventedException {

    final String username = credential.getUsername();
    for (final RadiusServer radiusServer : this.servers) {
        logger.debug("Attempting to authenticate {} at {}", username, radiusServer);
        try {
            if (radiusServer.authenticate(username, credential.getPassword())) {
                return createHandlerResult(credential, new SimplePrincipal(username), null);
            } 
            
            if (!this.failoverOnAuthenticationFailure) {
                throw new FailedLoginException();
            }
            logger.debug("failoverOnAuthenticationFailure enabled -- trying next server");
        } catch (final PreventedException e) {
            if (!this.failoverOnException) {
                throw e;
            }
            logger.warn("failoverOnException enabled -- trying next server.", e);
        }
    }
    throw new FailedLoginException();
}
 

import org.jasig.cas.adaptors.radius.RadiusServer; //导入依赖的package包/类
@Override
protected final HandlerResult authenticateUsernamePasswordInternal(final UsernamePasswordCredential credential)
        throws GeneralSecurityException, PreventedException {

    final String password = getPasswordEncoder().encode(credential.getPassword());
    final String username = credential.getUsername();
    
    for (final RadiusServer radiusServer : this.servers) {
        logger.debug("Attempting to authenticate {} at {}", username, radiusServer);
        try {
            final RadiusResponse response = radiusServer.authenticate(username, password);
            if (response != null) {
                final Map<String, Object> attributes = new HashMap<>();
                for (final RadiusAttribute attribute : response.getAttributes()) {
                    attributes.put(attribute.getAttributeName(), attribute.getValue().toString());
                }
                return createHandlerResult(credential, this.principalFactory.createPrincipal(username, attributes),
                        new ArrayList<MessageDescriptor>());
            }
                            
            if (!this.failoverOnAuthenticationFailure) {
                throw new FailedLoginException("Radius authentication failed for user " + username);
            }
            logger.debug("failoverOnAuthenticationFailure enabled -- trying next server");
        } catch (final PreventedException e) {
            if (!this.failoverOnException) {
                throw e;
            }
            logger.warn("failoverOnException enabled -- trying next server.", e);
        }
    }
    throw new FailedLoginException("Radius authentication failed for user " + username);
}
 

import org.jasig.cas.adaptors.radius.RadiusServer; //导入依赖的package包/类
@Override
protected final HandlerResult authenticateUsernamePasswordInternal(final UsernamePasswordCredential credential)
        throws GeneralSecurityException, PreventedException {

    final String password = getPasswordEncoder().encode(credential.getPassword());
    final String username = credential.getUsername();
    
    for (final RadiusServer radiusServer : this.servers) {
        logger.debug("Attempting to authenticate {} at {}", username, radiusServer);
        try {
            final RadiusResponse response = radiusServer.authenticate(username, password);
            if (response != null) {
                 return createHandlerResult(credential, this.principalFactory.createPrincipal(username), null);
            } 
                            
            if (!this.failoverOnAuthenticationFailure) {
                throw new FailedLoginException("Radius authentication failed for user " + username);
            }
            logger.debug("failoverOnAuthenticationFailure enabled -- trying next server");
        } catch (final PreventedException e) {
            if (!this.failoverOnException) {
                throw e;
            }
            logger.warn("failoverOnException enabled -- trying next server.", e);
        }
    }
    throw new FailedLoginException("Radius authentication failed for user " + username);
}
 

import org.jasig.cas.adaptors.radius.RadiusServer; //导入依赖的package包/类
public final void setServers(final List<RadiusServer> servers) {
    this.servers = servers;
}