/*
* Copyright 2008-2009 the original 赵永春(zyc@hasor.net).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.hasor.mvc.strategy;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import net.hasor.mvc.Param;
import net.hasor.mvc.support.Call;
import org.more.convert.ConverterUtils;
import org.more.util.BeanUtils;
/**
*
* @version : 2014年8月27日
* @author 赵永春(zyc@hasor.net)
*/
public class DefaultCallStrategy extends AbstractCallStrategy {
/**准备参数*/
protected Object[] resolveParams(Call call) throws Throwable {
Method targetMethod = call.getMethod();
//
Class<?>[] targetParamClass = call.getParameterTypes();
Annotation[][] targetParamAnno = call.getMethodParamAnnos();
targetParamClass = (targetParamClass == null) ? new Class<?>[0] : targetParamClass;
targetParamAnno = (targetParamAnno == null) ? new Annotation[0][0] : targetParamAnno;
ArrayList<Object> paramsArray = new ArrayList<Object>();
/*准备参数*/
for (int i = 0; i < targetParamClass.length; i++) {
Class<?> paramClass = targetParamClass[i];
Object paramObject = this.resolveParam(paramClass, targetParamAnno[i], call);//获取参数
/*获取到的参数需要做一个类型转换，以防止method.invoke时发生异常。*/
if (paramObject == null) {
paramObject = BeanUtils.getDefaultValue(paramClass);
} else {
paramObject = ConverterUtils.convert(paramClass, paramObject);
}
paramsArray.add(paramObject);
}
Object[] invokeParams = paramsArray.toArray();
return invokeParams;
}
/**准备参数*/
protected Object resolveParam(Class<?> paramClass, Annotation[] paramAnno, Call call) {
for (Annotation pAnno : paramAnno) {
Object finalValue = resolveParam(paramClass, pAnno, call);
if (finalValue != null) {
return finalValue;
}
}
return BeanUtils.getDefaultValue(paramClass);
}
/**/
protected Object resolveParam(Class<?> paramClass, Annotation pAnno, Call call) {
if (pAnno instanceof Param == false) {
return null;
}
Param param = (Param) pAnno;
String paramName = param.value();
return call.getParam(paramName);
}
}