CGLIB 实现拦截器

final NSConnectionFactory factory = (NSConnectionFactory) context.get(NSConst.DATASOURCEFACTORY_KEY);
        Object[] arguments = new Object[]{KDataAccess.ORACLE, factory.getConnection(jndi), getUser(), sessionId, NConst.CURRENT_SCHEMA};
        Class[] argumentTypes = new Class[arguments.length];
        argumentTypes[0] = Integer.class;
        argumentTypes[1] = Connection.class;
        argumentTypes[2] = User.class;
        argumentTypes[3] = String.class;
        argumentTypes[4] = String.class;
        Enhancer enhancer = new Enhancer();
    enhancer.setSuperclass(NDataAccess.class);
        enhancer.setCallback(new NDataAccessProxy(titleDspId,getUser()));
        NDataAccess proxy = (NDataAccess)enhancer.create(argumentTypes,arguments);
/**
* <pre>
* &lt;strong&gt;説明：&lt;/strong&gt;
* DBアクセスローグ出力するためにDB代理用クラス.
* </pre>
*
* <pre>
* &lt;strong&gt;注意事項：&lt;/strong&gt;
* </pre>
*
* <pre>
* &lt;strong&gt;使用例：&lt;/strong&gt;
* </pre>
*
* @author $Author: 鄧 $
* @version $Revision: 1.1 $ $Date: 2010/10/18 07:08:52 $
*/
public final class NDataAccessProxy implements MethodInterceptor {

private String functionId;
private User user;

public NDataAccessProxy(String functionId, User user) {
this.functionId = functionId;
this.user = user;
}

/** ログ. */
protected static Logger log = Logger.getLogger(NDataAccessProxy.class);

public Object intercept(Object obj, Method method, Object[] param,
MethodProxy proxyMethod) throws Throwable {
boolean isFunction = false;
boolean isSqlFunction = false;
LoginUser loginUser ;
String dealer = "";
if (functionId.equals("TS018")) {
isFunction = true;
Pattern pattern = Pattern.compile("^(getRecord(s|Bfile)(Exe)?|getResultSetEx|executeUpdate(SameState)?Exe|prepareCallExe(RetStr)?)$");
Matcher m = pattern.matcher(method.getName());
if(m.find()) {
isSqlFunction = true;
loginUser = (LoginUser) user;
dealer = loginUser.getDealerResourceType() + "_"
+ loginUser.getDealerConnectionCode() + "_"
+ loginUser.getDealerConnectionType();
}
}
if (isFunction) {
if(isSqlFunction) {
log.info("[DB]\t[functionId:]" + functionId + "\t[dealer:]" + dealer
+ "\t[sql:]" + param[param.length-1] + "\t[begin]");
}
}
Object result = proxyMethod.invokeSuper(obj, param);
if (isFunction) {
if(isSqlFunction) {
log.info("[DB]\t[functionId:]" + functionId + "\t[dealer:]" + dealer
+ "\t[sql:]" + param[param.length-1] + "\t[end]");
}
}
return result;
}
}