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Posted to users@tapestry.apache.org by hese <10...@gmail.com> on 2011/09/02 21:51:05 UTC
redirect-after-post messes with my StreamResponse
I've started a new thread because my older post regarding this issue lead me
to think on different lines, than my subject line and i didnt want to
re-edit it and mess with all the following threads.
(http://tapestry.1045711.n5.nabble.com/StreamResponse-onSuccess-does-not-stream-back-data-td4759347.html)
So here i go,
I have a form using which a user can upload a file. The problem is - due to
redirect-after-post (thanks to cqasker) instead of my response file being
streamed back, the page is getting redirected to reload my page once again.
So when the user clicks submit, instead of receiving the file, the page just
reloads. I checked all other form submits in my application and this seems
to the default form submit behavior (a 302 redirect), which isnt a problem
in the other pages, because the page reloads with the new data. But in this
case I want it to just stream back my file.
There is no problem with my streaming code. I confirmed this by doing a GET
on that url (in onActivate I am just streaming back the file) and the file
downloads.
Any idea how to make the streaming work with a POST operation?
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Re: redirect-after-post messes with my StreamResponse
Posted by Taha Hafeez <ta...@gmail.com>.
Hi
As the example that you have shared works for me, your issue may have
something to do with your build setup.
If you can create a sample webapp with this example and share it, I
would try to troubleshoot it for you.
On Mon, Sep 5, 2011 at 5:31 PM, hese <10...@gmail.com> wrote:
>
> nope, i moved the class to another package, (util) and tried and that didn't
> work too. Same error. I guess I'll just go with returning the file during
> the reload.
>
> Thank you all for your help!! Really appreciate it.
>
>
>
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Re: redirect-after-post messes with my StreamResponse
Posted by rancesvinto <ra...@hotmail.com>.
have you finally find a solution?
I have the same problem. I see debugging that streamresponse line is invoked
but open/save dialog never appears
I tried aswell creating an event link
Object onDoPDF() {
return new PDFStreamResponse
(pdfGenerator.generatePDF("doPDF");
}
Object onSuccessFromMyForm() {
return resources.createEventLink("doPDF");
}
That works first time, but next times onDoPDF() isn't invoked
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
@Taha - that'll be great! I'll create a separate app when today/tomorrow
and share it. Thanks!
@Martin - I've been trying all kinds of handlers (onSuccess, onSubmit,
obSubmitFrom<formname>, onEvent) to see if anything works. So thats why you
see a difference between the code and logs. Yes, my method is getting
called if I put a breakpoint and debug.
(I am really overwhelmed with the kind of help and response i've been
receiving here. Really appreciate it, thanks ppl!)
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Re: redirect-after-post messes with my StreamResponse
Posted by Martin Strand <do...@gmail.com>.
In the log you posted, messages are being logged from an "onSubmit"
method, but the code you posted has an "onSuccess" method with no logging
statements.
Are you sure the code you posted is ever reached? Can you put a breakpoint
in your onSuccess method and see if it is being invoked?
On Mon, 05 Sep 2011 14:01:02 +0200, hese <10...@gmail.com> wrote:
>
> nope, i moved the class to another package, (util) and tried and that
> didn't
> work too. Same error. I guess I'll just go with returning the file
> during
> the reload.
>
> Thank you all for your help!! Really appreciate it.
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
nope, i moved the class to another package, (util) and tried and that didn't
work too. Same error. I guess I'll just go with returning the file during
the reload.
Thank you all for your help!! Really appreciate it.
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
@Martin - wow, thats a great thought. Let me try it now.
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Re: redirect-after-post messes with my StreamResponse
Posted by Martin Strand <do...@gmail.com>.
The class name of that StreamResponse suggests it is in the "components"
package, where it will be transformed by Tapestry's classloading magic and
treated as a "component".
You need to move that class to another package to be able to use it as
anything else (avoid packages named "pages", "components", "base" and
"mixins")
On Sat, 03 Sep 2011 02:25:20 +0200, hese <10...@gmail.com> wrote:
>
> I upgraded to Tap 5.2.6 and now I see an interesting error message...
>
> Notice that just before the exception, I print the contents of the
> StreamResponse and it does print my test lines. Any idea?
>
> DEBUG [http-8080-6] UrlAnalysis._$advised$onSubmit(122) | Streaming back
> the results.
> DEBUG [http-8080-6] UrlAnalysis._$advised$onSubmit(123) | something to
> testAnother line to test
> DEBUG [http-8080-6] UrlAnalysis.exit(153) | [ EXIT] onSubmit
> [com.adsafe.fcc.webapp.components.CsvStreamResponse@5143dd30]
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
Hey Taha, there you are!
Yes, it is getting called. The log message "Streaming back the results." is
from within onSubmit. Also I debugged it and saw the method is being
called.
It works for you? Then i guess it is something to do with my env then..some
jars not playing well together or something like that.
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
I upgraded to Tap 5.2.6 and now I see an interesting error message...
Notice that just before the exception, I print the contents of the
StreamResponse and it does print my test lines. Any idea?
DEBUG [http-8080-6] UrlAnalysis._$advised$onSubmit(122) | Streaming back the
results.
DEBUG [http-8080-6] UrlAnalysis._$advised$onSubmit(123) | something to
testAnother line to test
DEBUG [http-8080-6] UrlAnalysis.exit(153) | [ EXIT] onSubmit
[com.adsafe.fcc.webapp.components.CsvStreamResponse@5143dd30]
ERROR [http-8080-6] RequestExceptionHandler.handleRequestException(63) |
Processing of request failed with uncaught exception: Sanity check - neither
a stream response nor a redirect response was generated for this action
request.
java.lang.IllegalStateException: Sanity check - neither a stream response
nor a redirect response was generated for this action request.
at
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:63)
at
$ComponentEventRequestHandler_1322ca8cb11.handle($ComponentEventRequestHandler_1322ca8cb11.java)
at
org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
at
$ComponentEventRequestHandler_1322ca8cb11.handle($ComponentEventRequestHandler_1322ca8cb11.java)
at
org.apache.tapestry5.upload.internal.services.UploadExceptionFilter.handle(UploadExceptionFilter.java:75)
at
$ComponentEventRequestHandler_1322ca8cb11.handle($ComponentEventRequestHandler_1322ca8cb11.java)
at
org.apache.tapestry5.services.TapestryModule$39.handle(TapestryModule.java:2583)
at
$ComponentEventRequestHandler_1322ca8cb11.handle($ComponentEventRequestHandler_1322ca8cb11.java)
at
$ComponentEventRequestHandler_1322ca8ca0c.handle($ComponentEventRequestHandler_1322ca8ca0c.java)
at
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
at
org.apache.tapestry5.services.InitializeActivePageName.handleComponentEvent(InitializeActivePageName.java:39)
at
$ComponentRequestHandler_1322ca8ca0e.handleComponentEvent($ComponentRequestHandler_1322ca8ca0e.java)
at
$ComponentRequestHandler_1322ca8c9f3.handleComponentEvent($ComponentRequestHandler_1322ca8c9f3.java)
at
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
at $Dispatcher_1322ca8c9f5.dispatch($Dispatcher_1322ca8c9f5.java)
at $Dispatcher_1322ca8c9ee.dispatch($Dispatcher_1322ca8c9ee.java)
at
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:321)
at
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
at $RequestHandler_1322ca8c9ef.service($RequestHandler_1322ca8c9ef.java)
at
org.apache.tapestry5.services.TapestryModule$4.service(TapestryModule.java:984)
at $RequestHandler_1322ca8c9ef.service($RequestHandler_1322ca8c9ef.java)
at
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:974)
at $RequestHandler_1322ca8c9ef.service($RequestHandler_1322ca8c9ef.java)
at
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90)
at $RequestHandler_1322ca8c9ef.service($RequestHandler_1322ca8c9ef.java)
at
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:90)
at
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:80)
at
org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
at
org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:103)
at $RequestHandler_1322ca8c9ef.service($RequestHandler_1322ca8c9ef.java)
at $RequestHandler_1322ca8c9e7.service($RequestHandler_1322ca8c9e7.java)
at
org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:272)
at
org.apache.tapestry5.upload.internal.services.MultipartServletRequestFilter.service(MultipartServletRequestFilter.java:44)
at
$HttpServletRequestHandler_1322ca8c9e9.service($HttpServletRequestHandler_1322ca8c9e9.java)
at
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
at
$HttpServletRequestFilter_1322ca8c9e6.service($HttpServletRequestFilter_1322ca8c9e6.java)
at
$HttpServletRequestHandler_1322ca8c9e9.service($HttpServletRequestHandler_1322ca8c9e9.java)
at
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:928)
at
$HttpServletRequestHandler_1322ca8c9e9.service($HttpServletRequestHandler_1322ca8c9e9.java)
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Re: redirect-after-post messes with my StreamResponse
Posted by Taha Hafeez <ta...@gmail.com>.
Hi
I just copied your code and it works for me. I have tried it on 5.2.6.
Are you sure your onSubmit action is getting called. Can you put a
break point or simply a log message so see if it is getting called
On Sat, Sep 3, 2011 at 4:04 AM, hese <10...@gmail.com> wrote:
>
> @Thiago - I am using Tapestry 5.1.0.5.
>
> @Martin - here is my code. This code works when called from onActivate()
> and returns the file.
>
> JAVA
>
> @Log
> StreamResponse onSuccess() {
>
> try {
>
> File tmpFile = File.createTempFile(urlFile.getFileName(), null);
> BufferedWriter br = new BufferedWriter(new FileWriter(tmpFile));
> br.append("something to test\nAnother line to test");
> br.flush();
> br.close();
>
> return new CsvStreamResponse(new
> FileInputStream(tmpFile.getAbsolutePath()), "results_file");
> } catch (IOException e) {
> e.printStackTrace();
> addError("An Error occured while streaming back the results.");
> }
>
> return null;
> }
>
> public class CsvStreamResponse implements StreamResponse {
> private InputStream is;
> private String filename;
>
> public CsvStreamResponse(InputStream is, String filename) {
> this.is = is;
> this.filename = filename;
> }
>
> public String getContentType() {
> return "text/csv";
> }
>
> public InputStream getStream() throws IOException {
> return is;
> }
>
> public void prepareResponse(Response arg0) {
> arg0.setHeader("Content-Disposition", "attachment; filename=" +
> filename + ".csv");
> //also tried setting content length after this -
> arg0.setContentLength(is.available());
> }
> }
>
>
>
> TML
> <form t:type="form" t:id="analysis">
> <t:upload t:id="urlFile" class="marginRight" validate="required"/>
> <t:submit class="marginRight white button medium"
> value="${message:button.upload}" t:id="upload"/>
> </form>
>
>
>
>
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http://tawus.wordpress.com
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
@Thiago - I am using Tapestry 5.1.0.5.
@Martin - here is my code. This code works when called from onActivate()
and returns the file.
JAVA
@Log
StreamResponse onSuccess() {
try {
File tmpFile = File.createTempFile(urlFile.getFileName(), null);
BufferedWriter br = new BufferedWriter(new FileWriter(tmpFile));
br.append("something to test\nAnother line to test");
br.flush();
br.close();
return new CsvStreamResponse(new
FileInputStream(tmpFile.getAbsolutePath()), "results_file");
} catch (IOException e) {
e.printStackTrace();
addError("An Error occured while streaming back the results.");
}
return null;
}
public class CsvStreamResponse implements StreamResponse {
private InputStream is;
private String filename;
public CsvStreamResponse(InputStream is, String filename) {
this.is = is;
this.filename = filename;
}
public String getContentType() {
return "text/csv";
}
public InputStream getStream() throws IOException {
return is;
}
public void prepareResponse(Response arg0) {
arg0.setHeader("Content-Disposition", "attachment; filename=" +
filename + ".csv");
//also tried setting content length after this -
arg0.setContentLength(is.available());
}
}
TML
<form t:type="form" t:id="analysis">
<t:upload t:id="urlFile" class="marginRight" validate="required"/>
<t:submit class="marginRight white button medium"
value="${message:button.upload}" t:id="upload"/>
</form>
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Re: redirect-after-post messes with my StreamResponse
Posted by cqasker <cq...@yahoo.com>.
That's pretty smart -- but yeah does seem hacky. I will await the responses
from the gurus as I am curious myself.
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
I worked around the problem like this: storing the name of the return file
in a property (FLASH, so it stays just for a single refresh), and returning
the contents of the file in onActivate, so when the page reloads the file
will be streamed back. But this seems ugly :( Still looking for a
solution....
public Object onActivate(EventContext ec) {
if(null != resultFile) {
File file = new File(resultFile);
if(file.exists()) {
try {
return new CsvStreamResponse(new
FileInputStream(file.getAbsolutePath()), file.getName());
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
return null;
}
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
Please help tapestry gurus! Thiago? Taha?? Anyone?
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Re: redirect-after-post messes with my StreamResponse
Posted by Martin Strand <do...@gmail.com>.
I am doing something similar for a reporting form and it works as expected
(in tap 5.2)
1. user fills out a few fields
2. user submits the form
3. onSuccess() returns a StreamResponse with a text file
4. a download dialog pops up in the browser
Although I haven't looked closely into the matter, it sounds like your
solution ought to work just fine, so there might be something else going
on.
Is the form perhaps submitted through AJAX?
Are there perhaps other event listeners involved?
What if you create a minimal example to demonstrate the problem?
On Fri, 02 Sep 2011 21:51:05 +0200, hese <10...@gmail.com> wrote:
>
> I've started a new thread because my older post regarding this issue
> lead me
> to think on different lines, than my subject line and i didnt want to
> re-edit it and mess with all the following threads.
> (http://tapestry.1045711.n5.nabble.com/StreamResponse-onSuccess-does-not-stream-back-data-td4759347.html)
>
> So here i go,
>
> I have a form using which a user can upload a file. The problem is -
> due to
> redirect-after-post (thanks to cqasker) instead of my response file being
> streamed back, the page is getting redirected to reload my page once
> again.
> So when the user clicks submit, instead of receiving the file, the page
> just
> reloads. I checked all other form submits in my application and this
> seems
> to the default form submit behavior (a 302 redirect), which isnt a
> problem
> in the other pages, because the page reloads with the new data. But in
> this
> case I want it to just stream back my file.
>
> There is no problem with my streaming code. I confirmed this by doing a
> GET
> on that url (in onActivate I am just streaming back the file) and the
> file
> downloads.
>
> Any idea how to make the streaming work with a POST operation?
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
We do content rating of web pages. So if you give a domain/url, we give you
a safety rating (0-1000, 0 being low safety & 1000 being high safety) for
that page in different categories, like Adult, Alcohol, Drugs, Torrents,
Offensive Language, etc. This is used by ad agencies and networks
- in realtime to prevent ads from landing on an offensive site (like say
porn), and to protect an advertisers "brand safety"....so blocking ads by
high risk content, country etc.
- post campaign metrics, like how many high risk pages their publishers
served, the position of the ads served by each publisher, which countries
their ads were served etc.
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Re: redirect-after-post messes with my StreamResponse
Posted by hese <10...@gmail.com>.
(lol...looks like people are clamoring for you Thiago :) )
I dont mind having a separate page for streaming the csv, but i would like
to know why my current onSuccess StreamResponse is not streaming back the
file. I checked if it is null or something by printing it out in my
onSuccess method before returning it and it prints the contents well. I see
other posts taking about onSuccess returning StreamResponse without problem,
and I wonder why mine is not working :(
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