01: /*
02: * Copyright 2005-2006 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
05: * in compliance with the License. You may obtain a copy of the License at
06: *
07: * http://www.apache.org/licenses/LICENSE-2.0
08: *
09: * Unless required by applicable law or agreed to in writing, software distributed under the License
10: * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11: * or implied. See the License for the specific language governing permissions and limitations under
12: * the License.
13: */
14:
15: package org.strecks.interceptor;
16:
17: import java.util.Map;
18:
19: import javax.servlet.http.HttpServletRequest;
20: import javax.servlet.http.HttpSession;
21:
22: import org.strecks.constants.InfrastructureKeys;
23: import org.strecks.context.ActionContext;
24:
25: /**
26: * Before interceptor used to extract and remove redirect from the session and add it to the
27: * request. Looks for <code>Map</code> of redirect parameters stored in session using the key. If
28: * these are found, they are consumed from the session, ie, removed from the session and added to
29: * the request <code>InfrastructureKeys.REDIRECT_PARAMETERS</code>
30: * @author Phil Zoio
31: */
32: public class RedirectBeforeInterceptor implements BeforeInterceptor {
33:
34: public void beforeExecute(Object actionBean, ActionContext context) {
35: HttpServletRequest request = context.getRequest();
36:
37: // consume any redirect parameters
38: HttpSession session = request.getSession(false);
39:
40: if (session != null) {
41: Map redirectParams = (Map) session
42: .getAttribute(InfrastructureKeys.REDIRECT_PARAMETERS);
43: if (redirectParams != null) {
44: session
45: .removeAttribute(InfrastructureKeys.REDIRECT_PARAMETERS);
46: request.setAttribute(
47: InfrastructureKeys.REDIRECT_PARAMETERS,
48: redirectParams);
49: }
50: }
51: }
52:
53: }
|