org.firesoa.common.util.JSR181ParameterNameDiscover.java Source code

Introduction

Here is the source code for org.firesoa.common.util.JSR181ParameterNameDiscover.java

Source

/**
 * Copyright 2007-2010 ?
 * 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 ? nychen2000@163.com
 * Fire Workflow www.firesoa.com  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) {

                //WebParam ????WebParam?WebParam???
                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;
    }

}