/*******************************************************************************
* Copyright 2015 xWic group (http://www.xwic.de)
*
* 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 de.jwic.util;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
/**
* Contains methods to handle compatibility issues between the differnet
* JDKs and ServletAPIs that may be used for jWic.
*
* @author Florian Lippisch
* @version $Revision: 1.2 $
*/
public class Compatibility {
/**
* request.getParameterMap() is not supported by older ServletAPIs.
* the map must be created the old (compatible) way.
*/
public static Map<String, String[]> getParameterMap(HttpServletRequest request) {
Map<String, String[]> parameter = new HashMap<String, String[]>();
for(Enumeration<?> e = request.getParameterNames(); e.hasMoreElements(); ) {
String key = (String)e.nextElement();
parameter.put(key, request.getParameterValues(key));
}
return Collections.unmodifiableMap(parameter);
}
}