/**
* Copyright 2007-2010 非也
* All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License v3 as published by the Free Software
* Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, see http://www.gnu.org/licenses/lgpl.html.
*
*/
package org.firesoa.common.util;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import javax.jws.WebParam;
import org.apache.commons.lang.StringUtils;
/**
*
* @author 非也 nychen2000@163.com
* Fire Workflow 官方网站：www.firesoa.com 或者 www.fireflow.org
*
*/
public class JSR181ParameterNameDiscover implements ParameterNameDiscoverer {
/* (non-Javadoc)
* @see org.firesoa.common.util.ParameterNameDiscoverer#getParameterNames(java.lang.reflect.Method)
*/
public String[] getParameterNames(Method method) {
Annotation[][] annotations = method.getParameterAnnotations();
int paramNum = annotations.length;
String[] paramNames = new String[paramNum];
if (paramNum==0) return paramNames;
for (int i=0;i<paramNum;i++){
Annotation[] annotationArr = annotations[i];
if (annotationArr.length==0){
//如果采用WebParam 命名参数，则所有参数必须都使用WebParam；如果，任何一个参数没有使用WebParam，则不再解析
paramNames[i] = null;
continue;
}
javax.jws.WebParam obj = (javax.jws.WebParam)this.findWebParam(annotationArr);
if (obj==null){
paramNames[i] = null;
continue;
}
String name = obj.name();
if (StringUtils.isEmpty(name)){
paramNames[i] = null;
continue;
}
paramNames[i] = name;
}
return paramNames;
}
private Annotation findWebParam(Annotation[] annotationArr){
for (Annotation annotation : annotationArr){
if (annotation.annotationType().equals(WebParam.class)){
return annotation;
}
}
return null;
}
}