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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  package com.ibatis.struts.httpmap;
    18
    19  import com.ibatis.struts.httpmap.BaseHttpMap;
    20
    21  import javax.servlet.http.HttpServletRequest;
    22  import java.util.Enumeration;
    23
    24  /***
    25   * Map to wrap form parameters.
    26   * <p/>
    27   * Date: Mar 11, 2004 10:35:52 PM
    28   *
    29   * @author Clinton Begin
    30   */
    31  public class ParameterMap extends BaseHttpMap {
    32
    33    private HttpServletRequest request;
    34
    35    public ParameterMap(HttpServletRequest request) {
    36      this.request = request;
    37    }
    38
    39    protected Enumeration getNames() {
    40      return request.getParameterNames();
    41    }
    42
    43    protected Object getValue(Object key) {
    44      return request.getParameter(String.valueOf(key));
    45    }
    46
    47    protected Object[] getValues(Object key) {
    48      return request.getParameterValues(String.valueOf(key));
    49    }
    50
    51    protected void putValue(Object key, Object value) {
    52      throw new UnsupportedOperationException("Cannot put value to ParameterMap.");
    53    }
    54
    55    protected void removeValue(Object key) {
    56      throw new UnsupportedOperationException("Cannot remove value from ParameterMap.");
    57    }
    58
    59  }