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 // RequestHandler.java
20 // Since: Oct 4, 2007
21 //
22 // $URL$
23 // $Author$
24 //--------------------------------------
25 package org.utgenome.gwt.utgb.server;
26
27 import java.io.IOException;
28
29 import javax.servlet.ServletException;
30 import javax.servlet.http.HttpServletRequest;
31 import javax.servlet.http.HttpServletResponse;
32
33 import org.utgenome.UTGBException;
34
35 /**
36 * An interface to handler web request
37 * @author leo
38 *
39 */
40 public interface RequestHandler
41 {
42
43 /**
44 * Handles the HTTP request
45 *
46 * @param request the http servlet request
47 * @param response the http servlet response
48 */
49 public void handle(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;
50
51 /**
52 * Validate request parameters
53 * @return true when request parameter values are valid, otherwise false
54 * @throws ServletException
55 * @throws UTGBException
56 *
57 */
58 public void validate(HttpServletRequest request, HttpServletResponse response) throws ServletException, UTGBException;
59 }
60
61
62
63