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anupam.sin |
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package in.shop2020.serving.interceptors;
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import java.util.Date;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.struts2.ServletActionContext;
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import com.opensymphony.xwork2.ActionInvocation;
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import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
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public class CachingInterceptor extends AbstractInterceptor {
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private static final long serialVersionUID = -2714402286574091187L;
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private static final long SECONDS_IN_HOUR = 60*60;
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public String intercept(ActionInvocation actionInvocation) throws Exception {
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HttpServletResponse response = ServletActionContext.getResponse();
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long expiresTime = (new Date()).getTime() + SECONDS_IN_HOUR * 1000;
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response.setDateHeader("Expires", expiresTime);
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response.setHeader("Cache-Control", "private");
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response.setHeader("Pragma", "");
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return actionInvocation.invoke();
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}
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}
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