Coverage report

  %line %branch
org.apache.turbine.util.HttpUtils
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 package org.apache.turbine.util;
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 /*
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  * Copyright 2001-2005 The Apache Software Foundation.
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  *
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  * Licensed under the Apache License, Version 2.0 (the "License")
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  * you may not use this file except in compliance with the License.
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  * You may obtain a copy of the License at
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  *
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  *     http://www.apache.org/licenses/LICENSE-2.0
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  *
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  * Unless required by applicable law or agreed to in writing, software
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  * distributed under the License is distributed on an "AS IS" BASIS,
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  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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  * See the License for the specific language governing permissions and
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  * limitations under the License.
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  */
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 import java.text.SimpleDateFormat;
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 import java.util.Date;
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 import java.util.Locale;
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 import java.util.TimeZone;
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 /**
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  * This class provides utilities for handling some semi-trivial HTTP stuff that
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  * would othterwise be handled elsewhere.
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  *
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  * @author <a href="mailto:magnus@handpoint.com">Magnús Þór Torfason</a>
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  * @version $Id: HttpUtils.java 278958 2005-09-06 09:35:39Z henning $
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  */
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 public class HttpUtils
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 {
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     /**
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      * The date format to use for HTTP Dates.
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      */
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     private static SimpleDateFormat httpDateFormat;
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     static
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     {
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         httpDateFormat = new SimpleDateFormat(
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                 "EEE, dd MMM yyyy HH:mm:ss z", Locale.US);
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         httpDateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
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     }
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     /**
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      * Formats a java Date according to rfc 1123, the rfc standard for dates in
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      * http.
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      *
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      * @param date The Date to format
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      * @return A String represeentation of the date
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      */
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     public static String formatHttpDate(Date date)
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     {
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         synchronized (httpDateFormat)
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         {
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             return httpDateFormat.format(date);
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         }
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     }
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     /**
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      * This method sets the required expiration headers in the response for a
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      * given RunData object.  This method attempts to set all relevant headers,
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      * both for HTTP 1.0 and HTTP 1.1.
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      *
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      * @param data The RunData object we are setting cache information for.
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      * @param expiry The number of seconds untill the document should expire,
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      * <code>0</code> indicating immediate expiration (i.e. no caching).
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      */
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     public static void setCacheHeaders(RunData data, int expiry)
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     {
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         if (0 == expiry)
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         {
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             data.getResponse().setHeader("Pragma", "no-cache");
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             data.getResponse().setHeader("Cache-Control", "no-cache");
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             data.getResponse().setHeader("Expires",
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                     formatHttpDate(new Date()));
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         }
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         else
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         {
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             Date expiryDate = new Date(System.currentTimeMillis() + expiry);
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             data.getResponse().setHeader("Expires",
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                     formatHttpDate(expiryDate));
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         }
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     }
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 }

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