01: /*
02: * $Id: RequestNoCache.java 471754 2006-11-06 14:55:09Z husted $
03: *
04: * Licensed to the Apache Software Foundation (ASF) under one
05: * or more contributor license agreements. See the NOTICE file
06: * distributed with this work for additional information
07: * regarding copyright ownership. The ASF licenses this file
08: * to you under the Apache License, Version 2.0 (the
09: * "License"); you may not use this file except in compliance
10: * with the License. You may obtain a copy of the License at
11: *
12: * http://www.apache.org/licenses/LICENSE-2.0
13: *
14: * Unless required by applicable law or agreed to in writing,
15: * software distributed under the License is distributed on an
16: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17: * KIND, either express or implied. See the License for the
18: * specific language governing permissions and limitations
19: * under the License.
20: */
21: package org.apache.struts.chain.commands.servlet;
22:
23: import org.apache.struts.chain.commands.AbstractRequestNoCache;
24: import org.apache.struts.chain.contexts.ActionContext;
25: import org.apache.struts.chain.contexts.ServletActionContext;
26:
27: import javax.servlet.http.HttpServletResponse;
28:
29: /**
30: * <p>Check to see if the controller is configured to prevent caching, and if
31: * so, set the no cache HTTP response headers.</p>
32: *
33: * @version $Rev: 471754 $ $Date: 2005-05-07 12:11:38 -0400 (Sat, 07 May 2005)
34: * $
35: */
36: public class RequestNoCache extends AbstractRequestNoCache {
37: // ------------------------------------------------------- Protected Methods
38: protected void requestNoCache(ActionContext context) {
39: ServletActionContext sacontext = (ServletActionContext) context;
40: HttpServletResponse response = sacontext.getResponse();
41:
42: response.setHeader("Pragma", "No-cache");
43: response.setHeader("Cache-Control",
44: "no-cache,no-store,max-age=0");
45: response.setDateHeader("Expires", 1);
46: }
47: }
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