001/**
002 * Copyright (c) 2015-2022, Michael Yang 杨福海 (fuhai999@gmail.com).
003 * <p>
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * <p>
008 * http://www.apache.org/licenses/LICENSE-2.0
009 * <p>
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package io.jboot.components.valid.interceptor;
017
018import com.jfinal.aop.Interceptor;
019import com.jfinal.aop.Invocation;
020import io.jboot.components.valid.ValidUtil;
021import io.jboot.utils.ClassUtil;
022import io.jboot.utils.StrUtil;
023
024import javax.validation.constraints.NotBlank;
025import java.lang.reflect.Parameter;
026
027public class NotBlankInterceptor implements Interceptor {
028
029    @Override
030    public void intercept(Invocation inv) {
031        Parameter[] parameters = inv.getMethod().getParameters();
032        for (int index = 0; index < parameters.length; index++) {
033            NotBlank notBlank = parameters[index].getAnnotation(NotBlank.class);
034            if (notBlank == null) {
035                continue;
036            }
037            Object validObject = inv.getArg(index);
038
039            if (validObject == null || (validObject instanceof String && StrUtil.isBlank((String) validObject))) {
040                String msg = parameters[index].getName() + " is blank at method: " + ClassUtil.buildMethodString(inv.getMethod());
041                ValidUtil.throwValidException(parameters[index].getName(), notBlank.message(), msg);
042            }
043        }
044
045        inv.invoke();
046    }
047
048
049}