uploadformparameterswrapper.java

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// Copyright 2005-2007 onetsoft.com
//
// 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 com.onetsoft.fastjsp.request.multipart;

import com.onetsoft.fastjsp.ParamsHelper;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Map;

/**
 * @author <a href="mailto:[e-mail]">hgw</a>
 */
public class UploadFormParametersWrapper extends HttpServletRequestWrapper {

    private Map _parameterMap;    //key:parameter name  value:ValuePart

    public UploadFormParametersWrapper(HttpServletRequest request, Map parameterMap) {
        super(request);
        if (parameterMap == null)
            throw new NullPointerException("Parameter parameterMap Cannot be null!");
        _parameterMap = Collections.unmodifiableMap(parameterMap);
    }

    //采用Object标识，是因为  "_parameterMap" 时间也有pageData共享，可能包含用户自行置入的页面参数
    public String getParameter(String name) {
        return ParamsHelper.getParameter(_parameterMap, name);
    }

    //采用Object标识，是因为  "_parameterMap" 时间也有pageData共享，可能包含用户自行置入的页面参数
    public String[] getParameterValues(String name) {
        return ParamsHelper.getParameterValues(_parameterMap, name);
    }

    public Map getParameterMap() {
        return _parameterMap;
    }

    public Enumeration getParameterNames() {  
        return Collections.enumeration(_parameterMap.keySet());
    }


    public String toString() {
        return "<UploadFormPartWrapper for " + getRequest() + ">";
    }
}