1 /*--------------------------------------------------------------------------
2 * Copyright 2007 utgenome.org
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *--------------------------------------------------------------------------*/
16 //--------------------------------------
17 // utgb-core Project
18 //
19 // ServletUtil.java
20 // Since: Oct 2, 2007
21 //
22 // $URL$
23 // $Author$
24 //--------------------------------------
25 package org.utgenome.gwt.utgb.server.util;
26
27 import javax.servlet.http.HttpServletRequest;
28
29 /**
30 * Utilities to handle servlet context
31 * @author leo
32 *
33 */
34 public class ServletUtil
35 {
36 /**
37 * Gets the http request parameter
38 * @param request the servlet request
39 * @param key the parameter key
40 * @param defalutValue the default value to be returned when the requested parameter is not found
41 * @return the parameter value of the specified key.
42 */
43 public static String getParameter(HttpServletRequest request, String key, String defalutValue)
44 {
45 String value = request.getParameter(key);
46 return value != null ? value : defalutValue;
47 }
48 }
49
50
51
52