Thx to all who answered, we now have a working solution.
/c
----- Original Message -----
From: "Jeffrey Gehrung" <[EMAIL PROTECTED]>
To: "Turbine Users List" <[EMAIL PROTECTED]>
Sent: Thursday, December 05, 2002 2:27 PM
Subject: Re: CVS files to browser
>
> Colin,
>
> I posed a similar question here, assuming Turbine returned HTML by
default. This assumption was politely corrected. I'm using the
Turbine/Velocity combo which seems to return about any form of common web
content easily. With a novice's experience using these tools, my
satisfaction from accomplishing CSV downloads was akin to a caveman
receiving a pack of matches...
>
> Anyway, the particulars (a composite of suggestions in earlier threads
here):
>
> I use a Velocity template to lay out the CSV format, for example:
>
> Animal_List.csv, containing a header rec and detail recs:
>
> Status,Name,Reg_No,Bir_Dt,Breeds,Last Calf,Remarks
>
> #foreach ($entry in $thelist.Records)
>
>
$entry.Status,$entry.Name,$entry.RegNo,$entry.BirDt,$entry.Breeds,$entry.Rem
arks
>
> #end
>
> I opted to provide my web developers a pseudo taglib and have created a
collection of classes (registered as session PULL tools) which they can
access from within their template files. In this example, you'll see one
such "tag" class, TheList (which is referenced in the Velocity template
above): org.myfirm.modules.taglib.TheList -- which contains the accessor
methods corresponding to the properties above (Status, Name,etc.).
>
> To send the merged content to the browser, I rely on the following code
(which is a composite of suggestions found elsewhere in messages in this
list):
>
> An extended RawScreen:
>
> import java.io.StringWriter;
>
> /**
>
> *
>
> * @version
>
> */
>
> public class RawContent extends
org.apache.turbine.modules.screens.RawScreen {
>
> /** Holds value of property strb_Content. */
>
> private StringBuffer strb_Content;
>
> /** Holds value of property str_Filename. */
>
> private String str_Filename;
>
>
>
> /** Creates new RawContent */
>
> public RawContent() {
>
> }
>
> public void doOutput(org.apache.turbine.util.RunData runData) throws
java.lang.Exception {
>
> javax.servlet.http.HttpServletResponse res = runData.getResponse();
>
> res.setContentType("application/binary;name=" + "\"" + str_Filename +
"\"");
>
> res.setContentLength(getStrb_Content().length());
>
> res.setHeader("Content-Disposition", "inline; filename=\"" + str_Filename
+ "\"");
>
> runData.declareDirectResponse();
>
> java.io.PrintWriter out = null;
>
> try {
>
> out = res.getWriter();
>
> out.print(getStrb_Content().toString());
>
> }
>
> catch (java.io.IOException e) {
>
> throw new Exception("RawContent: doOutput: "+e.toString());
>
> }
>
> finally
>
> { if (out!= null)
>
> {
>
> out.flush();
>
> out.close();
>
> }
>
> }
>
> }
>
>
>
> public java.lang.String getContentType(org.apache.turbine.util.RunData
runData) {
>
> return "";
>
> }
>
> protected boolean isAuthorized(org.apache.turbine.util.RunData data)
>
> {
>
> // do the security check here. Get whatever info you need
>
> // about the user from RunData
>
> return true;
>
> }
>
>
>
>
>
> public void setStrb_Content(StringBuffer strb_Content)
>
> { this.strb_Content = strb_Content; }
>
> public void setStrw_Content(StringWriter strw_Content)
>
> { setStrb_Content( strw_Content.getBuffer() ); }
>
>
>
>
>
> public StringBuffer getStrb_Content()
>
> { return this.strb_Content; }
>
>
>
>
>
>
>
> /** Getter for property str_Filename.
>
> * @return Value of property str_Filename.
>
> */
>
> public String getStr_Filename() {
>
> return str_Filename;
>
> }
>
>
>
> /** Setter for property str_Filename.
>
> * @param str_Filename New value of property str_Filename.
>
> */
>
> public void setStr_Filename(String str_Filename) {
>
> this.str_Filename = str_Filename;
>
> }
>
>
>
> Then from within my Action class, the following method sends the content:
>
> public void doProvideherdlist(RunData data, Context context) throws
Exception {
>
>
>
> TheList thelObj = (TheList) context.get("thelist");
>
> if ( thelObj.getRecords().size() == 0) {
>
> data.setMessage( "Your herd no longer exists. Please submit a new
request.");
>
> setTemplate(data,"the,ReqFormScreen_pg1.vm"); \\ back to first page in
the series
>
> return;
>
> }
>
>
>
> String results =
TurbineVelocity.handleRequest(context,"screens/the/TheDataForm.vm");
>
> RawContent rcSender = new RawContent();
>
> rcSender.setStr_Filename("I" + thelObj.getMemberNum() + ".txt");
>
> rcSender.setStrb_Content(new StringBuffer(results));
>
> rcSender.doOutput( data);
>
> }
>
>
> Again, this is a composite of suggestions from other threadsin this
list... I just assembled them here. Note that the response headers in the
RawContent class were the ONLY combination that caused the receiving browser
to display the "SAVE AS" dialog, despite content which otherwise woulld have
been displayed as text.
> HTH
>
>
>
>
>
> --------------------------------------
> Jeff Gehrung (Sr. Programmer Analyst)
> Holstein Association USA
> Brattleboro VT 05302
> 802.451.4146
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
> I'm told
>
>
>
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