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Merged HEAD-BUG-FIX (5.1/Cloud) to HEAD (5.1/Cloud)

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106240: Merge RA-SPRINT6 to HEAD-BUG-FIX (5.1)
      106203: RA-302: move StaticAssetCacheFilter to core.
      It turned out the remote-api was not a dependency of Share, which makes sense and it seems odd that it worked during testing.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@106317 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Alan Davis
2015-06-16 19:26:45 +00:00
parent 810cc3866a
commit 776cc8f392
1 changed files with 0 additions and 79 deletions
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79
source/java/org/alfresco/web/scripts/servlet/StaticAssetCacheFilter.java
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/*
* Copyright (C) 2005-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.web.scripts.servlet;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
/**
* Simple servlet filter to add a 'Cache-Control' HTTP header to a response.
* The Cache-Control header is set to a max-age value by a configurable setting
* in the 'expires' init parameters - values are in days.
*
* WebScripts or other servlets that happen to match the response type
* configured for the filter (e.g. "*.js") should override cache settings
* as required.
*
* @author Kevin Roast
*/
public class StaticAssetCacheFilter implements Filter
{
private static final long DAY_S = 60L*60L*24L; // 1 day in seconds
private static final long DEFAULT_30DAYS = 30L; // default of 30 days if not configured
private long expire = DAY_S * DEFAULT_30DAYS; // initially set to default value of 30 days
/* (non-Javadoc)
* @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
*/
public void init(FilterConfig config) throws ServletException
{
String expireParam = config.getInitParameter("expires");
if (expireParam != null)
{
this.expire = Long.parseLong(expireParam) * DAY_S;
}
}
/* (non-Javadoc)
* @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)
*/
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException,
ServletException
{
((HttpServletResponse)res).setHeader("Cache-Control", "must-revalidate, max-age=" + Long.toString(this.expire));
chain.doFilter(req, res);
}
/* (non-Javadoc)
* @see javax.servlet.Filter#destroy()
*/
public void destroy()
{
this.expire = DAY_S * DEFAULT_30DAYS;
}
}