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.preprocess;
16:
17: import javax.servlet.http.HttpServletRequest;
18: import javax.servlet.http.HttpSession;
19:
20: import org.apache.struts.Globals;
21: import org.apache.struts.action.ActionMessages;
22:
23: /**
24: * Implements the <code>RequestPreprocessor</code>
25: * @author Phil Zoio
26: */
27: public class SessionErrorPreprocessor implements RequestPreprocessor {
28: /**
29: * Removes <code>Globals.ERROR_KEY</code> errors from session attribute under same name, and adds it to request
30: */
31: public void preprocessRequest(HttpServletRequest request) {
32: HttpSession session = request.getSession(false);
33: if (session != null) {
34: ActionMessages messages = (ActionMessages) session
35: .getAttribute(Globals.ERROR_KEY);
36: if (messages != null) {
37: request.setAttribute(Globals.ERROR_KEY, messages);
38: session.removeAttribute(Globals.ERROR_KEY);
39: }
40: }
41: }
42: }
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