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A primitive implementation of AppCacheBuster

Hello Experts,

Due to limitations I'm working with J2EE 7.01 and I cannot use standard AppCacheBuster which comes with ABAP stacks or newer Java stacks.

I implemented a simple mechanism for AppCacheBuster:

1) Renamed index.html to index.jsp (html meta tags that prevent cache works for IE but doesn't always work for Chrome). Renaming from HTML to JSP solves the problem.

2) Added a unique string (that will be changed for every new version in my index.jsp)

<script>

window.appVer = "employeeAttendance20150513134900";

console.log("appVer-->"+window.appVer);

sap.ui.localResources(window.appVer);

sap.ui.localResources(window.appVer + ".model.service.EmpAttendanceService");

sap.ui.localResources(window.appVer + ".util.Formatter");

sap.ui.localResources(window.appVer + ".constants.ColumnIndex");

<script>

3) When I init my views, I use the unique string:

sap.ui.jsview(window.appVer + ".main", {

getControllerName : function() {

return window.appVer + ".main";

},

4) Whenever I need to load a new version I rename the folder that contains the code (see folder.jpg)

This seems to be working.

Does someone see downsides of using this solution?

Regards,

Omri

folder.jpg (22.5 kB)
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1 Answer

  • Posted on May 14, 2015 at 05:32 AM

    BTW, i am just curious - whats so special about AppCacheBusterFilter so it can't be ported to 7.01? it is java 1.4 afair?

    import com.sap.ui5.resource.util.XSSEncoder;

    import java.io.*;

    import java.util.*;

    import java.util.logging.Level;

    import java.util.logging.Logger;

    import java.util.regex.Matcher;

    import java.util.regex.Pattern;

    import javax.servlet.*;

    import javax.servlet.http.HttpServletRequest;

    import javax.servlet.http.HttpServletResponse;

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