[Lift] Re: File Download
Any thoughts on this? Still trying to get it to work.
Thanks
On Mar 5, 2:56 pm, DavidV david.v.villa...@gmail.com wrote:
I have recreated a number of StreamingResponse methods from both the
Loop link above and the Lift book and I still can't seem to get the
desired effect. I have been able to get a PlainTextResponse to work
by using LiftRules.dispatch in the Boot, like so:
LiftRules.dispatch.prepend {
case Req((analysis :: inprocess :: Nil), _, _) =
() = Full(PlainTextResponse(test))
}
However, I am unable to get any sort of streaming response to work in
the particular snippet which contains the data I would like to use.
Here are some of the methods I've tried:
def textResponse: Box[LiftResponse] = {
println(TEXT RESPONSE)
val ab = text would go here
Full(PlainTextResponse(ab,
(Content-Type - text/plain) :: Nil, 200
))
}
def streamingResponseFile: Box[LiftResponse] = {
println(STREAMING RESPONSE FILE)
val file: File = new File(
C:\\Source\\trunk\\eclipse\\testLift\\src\\main\\webapp\\images\
\ultra.png
)
val length = file.length
val fileInput = new java.io.FileInputStream(file)
Full(StreamingResponse(fileInput,
() = { fileInput.close },
length,
(Content-Type - image/png) :: Nil,
Nil,
200)
)
}
Do I have to make a LiftRules.dispatch function in the Boot in
addition to the StreamingResponse in my snippet?
I am trying to download plain text, but it is variable and dependent
on some parameters and other variables in the particular Snippet
class. Would I have to pass that data into the boot method in order
to get the desired response? I would prefer to handle it entirely in
the snippet itself.
Finally, I'm not really sure how exactly to handle the
Full(StreamingResponse) once I have created it in order to actually
download the data and save it to the client computer. Although I
assume the browser will handle this one I've formatted the Response
correctly and actually have it working.
Thanks again,
David
On Mar 4, 11:13 am, Marius marius.dan...@gmail.com wrote:
If you want todownloadthrough Lift than yes you can use
StreamingResponse, or simply any other LiftResponse (depending on your
mime-type) and use LiftRules.dispatch mechanism. But you could also
let the container to serve thefile. By default Lift is trying to
serve .html, .xhtml, .htm, .xml etc.. You can write your own rules by
setting
LiftRules.liftRequest = {
case req = true // Pattern match whatever you like and return a
Boolean
}
If Lift cannot find a resource for some reason and you want the
container (or subsequent filters) to handle that you can set
LiftRules.passNotFoundToChain = true
On 4 mar., 17:09, DavidV david.v.villa...@gmail.com wrote:
I am also looking todownloadafilefrom the server that is hosting
my Lift web app. There is a very useful fileUpload method in the
SHtml class and I was wondering if there may be something similar for
afiledownload? I was unable to find anything, and searching for
Lift or Scala Liftdownload on Google returns nothing but pages to
downloadthe libraries, plugins or source code. I suppose I could use
the StreamingResponse, but I am already saving thefileI need to the
server and it would be nice to be able todownloadit to any client
computer with the typical Browse button, similar to the upload,
Thanks,
David
On Feb 14, 3:58 pm, Gang wangga...@gmail.com wrote:
Thanks Tim, that's exactly what I'm looking for!
On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu wrote:
See:
http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr...
Construct the CSV in memory and just then stuff it into a streaming
response as a byte array.
Cheers, Tim
On 14 Feb 2010, at 16:18, Gang wrote:
Hi,
I have a question and it may not be a pure Lift one. But since I'm
working on a Lift app and this group is the most responsive one I
have
seen, might just try it here.
I need todownloaddata from database in CSV format. What is the best
approach within Lift framework? Do I have to write the data on the
server somewhere and then provide user with a link? I have tried to
google scala, lift,filedownload..., but could not come up with
what I'm looking for. Maybe I didn't use the right key words in
search? Thanks in advance!
Brs
Gang
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Re: [Lift] Re: File Download
Is your dispatch defined it boot? It doesnt sound like it is...
Cheers, tim
On 9 Mar 2010, at 21:45, DavidV wrote:
Any thoughts on this? Still trying to get it to work.
Thanks
On Mar 5, 2:56 pm, DavidV david.v.villa...@gmail.com wrote:
I have recreated a number of StreamingResponse methods from both the
Loop link above and the Lift book and I still can't seem to get the
desired effect. I have been able to get a PlainTextResponse to work
by using LiftRules.dispatch in the Boot, like so:
LiftRules.dispatch.prepend {
case Req((analysis :: inprocess :: Nil), _, _) =
() = Full(PlainTextResponse(test))
}
However, I am unable to get any sort of streaming response to work in
the particular snippet which contains the data I would like to use.
Here are some of the methods I've tried:
def textResponse: Box[LiftResponse] = {
println(TEXT RESPONSE)
val ab = text would go here
Full(PlainTextResponse(ab,
(Content-Type - text/plain) :: Nil, 200
))
}
def streamingResponseFile: Box[LiftResponse] = {
println(STREAMING RESPONSE FILE)
val file: File = new File(
C:\\Source\\trunk\\eclipse\\testLift\\src\\main\\webapp\\images\
\ultra.png
)
val length = file.length
val fileInput = new java.io.FileInputStream(file)
Full(StreamingResponse(fileInput,
() = { fileInput.close },
length,
(Content-Type - image/png) :: Nil,
Nil,
200)
)
}
Do I have to make a LiftRules.dispatch function in the Boot in
addition to the StreamingResponse in my snippet?
I am trying to download plain text, but it is variable and dependent
on some parameters and other variables in the particular Snippet
class. Would I have to pass that data into the boot method in order
to get the desired response? I would prefer to handle it entirely in
the snippet itself.
Finally, I'm not really sure how exactly to handle the
Full(StreamingResponse) once I have created it in order to actually
download the data and save it to the client computer. Although I
assume the browser will handle this one I've formatted the Response
correctly and actually have it working.
Thanks again,
David
On Mar 4, 11:13 am, Marius marius.dan...@gmail.com wrote:
If you want todownloadthrough Lift than yes you can use
StreamingResponse, or simply any other LiftResponse (depending on your
mime-type) and use LiftRules.dispatch mechanism. But you could also
let the container to serve thefile. By default Lift is trying to
serve .html, .xhtml, .htm, .xml etc.. You can write your own rules by
setting
LiftRules.liftRequest = {
case req = true // Pattern match whatever you like and return a
Boolean
}
If Lift cannot find a resource for some reason and you want the
container (or subsequent filters) to handle that you can set
LiftRules.passNotFoundToChain = true
On 4 mar., 17:09, DavidV david.v.villa...@gmail.com wrote:
I am also looking todownloadafilefrom the server that is hosting
my Lift web app. There is a very useful fileUpload method in the
SHtml class and I was wondering if there may be something similar for
afiledownload? I was unable to find anything, and searching for
Lift or Scala Liftdownload on Google returns nothing but pages to
downloadthe libraries, plugins or source code. I suppose I could use
the StreamingResponse, but I am already saving thefileI need to the
server and it would be nice to be able todownloadit to any client
computer with the typical Browse button, similar to the upload,
Thanks,
David
On Feb 14, 3:58 pm, Gang wangga...@gmail.com wrote:
Thanks Tim, that's exactly what I'm looking for!
On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu wrote:
See:
http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr...
Construct the CSV in memory and just then stuff it into a streaming
response as a byte array.
Cheers, Tim
On 14 Feb 2010, at 16:18, Gang wrote:
Hi,
I have a question and it may not be a pure Lift one. But since I'm
working on a Lift app and this group is the most responsive one I have
seen, might just try it here.
I need todownloaddata from database in CSV format. What is the best
approach within Lift framework? Do I have to write the data on the
server somewhere and then provide user with a link? I have tried to
google scala, lift,filedownload..., but could not come up with
what I'm looking for. Maybe I didn't use the right key words in
search? Thanks in advance!
Brs
Gang
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You received this
Re: [Lift] Re: File Download
On Tue, Mar 9, 2010 at 1:45 PM, DavidV david.v.villa...@gmail.com wrote:
Any thoughts on this? Still trying to get it to work.
See the enclosed example code. Specifically, there's a dpp.gif file in
src/main/resources and in Boot.scala:
LiftRules.statelessDispatchTable.append {
case Req(image :: name :: Nil, gif, GetRequest) =
() =
for {
stream - tryo(this.getClass.getResourceAsStream(/+name+.gif))
if null ne stream
} yield StreamingResponse(stream, () = stream.close,
stream.available, List(Content-Type - image/gif), Nil, 200)
}
If you put other GIF files in resources, the server will find and serve
them.
Thanks
On Mar 5, 2:56 pm, DavidV david.v.villa...@gmail.com wrote:
I have recreated a number of StreamingResponse methods from both the
Loop link above and the Lift book and I still can't seem to get the
desired effect. I have been able to get a PlainTextResponse to work
by using LiftRules.dispatch in the Boot, like so:
LiftRules.dispatch.prepend {
case Req((analysis :: inprocess :: Nil), _, _) =
() = Full(PlainTextResponse(test))
}
However, I am unable to get any sort of streaming response to work in
the particular snippet which contains the data I would like to use.
Here are some of the methods I've tried:
def textResponse: Box[LiftResponse] = {
println(TEXT RESPONSE)
val ab = text would go here
Full(PlainTextResponse(ab,
(Content-Type - text/plain) :: Nil, 200
))
}
def streamingResponseFile: Box[LiftResponse] = {
println(STREAMING RESPONSE FILE)
val file: File = new File(
C:\\Source\\trunk\\eclipse\\testLift\\src\\main\\webapp\\images\
\ultra.png
)
val length = file.length
val fileInput = new java.io.FileInputStream(file)
Full(StreamingResponse(fileInput,
() = { fileInput.close },
length,
(Content-Type - image/png) :: Nil,
Nil,
200)
)
}
Do I have to make a LiftRules.dispatch function in the Boot in
addition to the StreamingResponse in my snippet?
I am trying to download plain text, but it is variable and dependent
on some parameters and other variables in the particular Snippet
class. Would I have to pass that data into the boot method in order
to get the desired response? I would prefer to handle it entirely in
the snippet itself.
Finally, I'm not really sure how exactly to handle the
Full(StreamingResponse) once I have created it in order to actually
download the data and save it to the client computer. Although I
assume the browser will handle this one I've formatted the Response
correctly and actually have it working.
Thanks again,
David
On Mar 4, 11:13 am, Marius marius.dan...@gmail.com wrote:
If you want todownloadthrough Lift than yes you can use
StreamingResponse, or simply any other LiftResponse (depending on your
mime-type) and use LiftRules.dispatch mechanism. But you could also
let the container to serve thefile. By default Lift is trying to
serve .html, .xhtml, .htm, .xml etc.. You can write your own rules by
setting
LiftRules.liftRequest = {
case req = true // Pattern match whatever you like and return a
Boolean
}
If Lift cannot find a resource for some reason and you want the
container (or subsequent filters) to handle that you can set
LiftRules.passNotFoundToChain = true
On 4 mar., 17:09, DavidV david.v.villa...@gmail.com wrote:
I am also looking todownloadafilefrom the server that is hosting
my Lift web app. There is a very useful fileUpload method in the
SHtml class and I was wondering if there may be something similar for
afiledownload? I was unable to find anything, and searching for
Lift or Scala Liftdownload on Google returns nothing but pages to
downloadthe libraries, plugins or source code. I suppose I could use
the StreamingResponse, but I am already saving thefileI need to the
server and it would be nice to be able todownloadit to any client
computer with the typical Browse button, similar to the upload,
Thanks,
David
On Feb 14, 3:58 pm, Gang wangga...@gmail.com wrote:
Thanks Tim, that's exactly what I'm looking for!
On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu
wrote:
See:
http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr...
Construct the CSV in memory and just then stuff it into a
streaming response as a byte array.
Cheers, Tim
On 14 Feb 2010, at 16:18, Gang wrote:
Hi,
I have a question and it may not be a pure Lift one. But since
I'm
working on a Lift app and this group is the most responsive one
I have
seen, might just try it here.
I need todownloaddata from database in CSV format. What is the
best
approach within Lift framework?
[Lift] Re: File Download
I have recreated a number of StreamingResponse methods from both the
Loop link above and the Lift book and I still can't seem to get the
desired effect. I have been able to get a PlainTextResponse to work
by using LiftRules.dispatch in the Boot, like so:
LiftRules.dispatch.prepend {
case Req((analysis :: inprocess :: Nil), _, _) =
() = Full(PlainTextResponse(test))
}
However, I am unable to get any sort of streaming response to work in
the particular snippet which contains the data I would like to use.
Here are some of the methods I've tried:
def textResponse: Box[LiftResponse] = {
println(TEXT RESPONSE)
val ab = text would go here
Full(PlainTextResponse(ab,
(Content-Type - text/plain) :: Nil, 200
))
}
def streamingResponseFile: Box[LiftResponse] = {
println(STREAMING RESPONSE FILE)
val file: File = new File(
C:\\Source\\trunk\\eclipse\\testLift\\src\\main\\webapp\\images\
\ultra.png
)
val length = file.length
val fileInput = new java.io.FileInputStream(file)
Full(StreamingResponse(fileInput,
() = { fileInput.close },
length,
(Content-Type - image/png) :: Nil,
Nil,
200)
)
}
Do I have to make a LiftRules.dispatch function in the Boot in
addition to the StreamingResponse in my snippet?
I am trying to download plain text, but it is variable and dependent
on some parameters and other variables in the particular Snippet
class. Would I have to pass that data into the boot method in order
to get the desired response? I would prefer to handle it entirely in
the snippet itself.
Finally, I'm not really sure how exactly to handle the
Full(StreamingResponse) once I have created it in order to actually
download the data and save it to the client computer. Although I
assume the browser will handle this one I've formatted the Response
correctly and actually have it working.
Thanks again,
David
On Mar 4, 11:13 am, Marius marius.dan...@gmail.com wrote:
If you want todownloadthrough Lift than yes you can use
StreamingResponse, or simply any other LiftResponse (depending on your
mime-type) and use LiftRules.dispatch mechanism. But you could also
let the container to serve thefile. By default Lift is trying to
serve .html, .xhtml, .htm, .xml etc.. You can write your own rules by
setting
LiftRules.liftRequest = {
case req = true // Pattern match whatever you like and return a
Boolean
}
If Lift cannot find a resource for some reason and you want the
container (or subsequent filters) to handle that you can set
LiftRules.passNotFoundToChain = true
On 4 mar., 17:09, DavidV david.v.villa...@gmail.com wrote:
I am also looking todownloadafilefrom the server that is hosting
my Lift web app. There is a very useful fileUpload method in the
SHtml class and I was wondering if there may be something similar for
afiledownload? I was unable to find anything, and searching for
Lift or Scala Liftdownload on Google returns nothing but pages to
downloadthe libraries, plugins or source code. I suppose I could use
the StreamingResponse, but I am already saving thefileI need to the
server and it would be nice to be able todownloadit to any client
computer with the typical Browse button, similar to the upload,
Thanks,
David
On Feb 14, 3:58 pm, Gang wangga...@gmail.com wrote:
Thanks Tim, that's exactly what I'm looking for!
On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu wrote:
See:
http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr...
Construct the CSV in memory and just then stuff it into a streaming
response as a byte array.
Cheers, Tim
On 14 Feb 2010, at 16:18, Gang wrote:
Hi,
I have a question and it may not be a pure Lift one. But since I'm
working on a Lift app and this group is the most responsive one I have
seen, might just try it here.
I need todownloaddata from database in CSV format. What is the best
approach within Lift framework? Do I have to write the data on the
server somewhere and then provide user with a link? I have tried to
google scala, lift,filedownload..., but could not come up with
what I'm looking for. Maybe I didn't use the right key words in
search? Thanks in advance!
Brs
Gang
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[Lift] Re: File Download
I am also looking to download a file from the server that is hosting my Lift web app. There is a very useful fileUpload method in the SHtml class and I was wondering if there may be something similar for a file download? I was unable to find anything, and searching for Lift or Scala Lift download on Google returns nothing but pages to download the libraries, plugins or source code. I suppose I could use the StreamingResponse, but I am already saving the file I need to the server and it would be nice to be able to download it to any client computer with the typical Browse button, similar to the upload, Thanks, David On Feb 14, 3:58 pm, Gang wangga...@gmail.com wrote: Thanks Tim, that's exactly what I'm looking for! On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu wrote: See: http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr... Construct the CSV in memory and just then stuff it into a streaming response as a byte array. Cheers, Tim On 14 Feb 2010, at 16:18, Gang wrote: Hi, I have a question and it may not be a pure Lift one. But since I'm working on a Lift app and this group is the most responsive one I have seen, might just try it here. I need todownloaddata from database in CSV format. What is the best approach within Lift framework? Do I have to write the data on the server somewhere and then provide user with a link? I have tried to google scala, lift,filedownload..., but could not come up with what I'm looking for. Maybe I didn't use the right key words in search? Thanks in advance! Brs Gang -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en.-Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
[Lift] Re: File Download
If you want to download through Lift than yes you can use
StreamingResponse, or simply any other LiftResponse (depending on your
mime-type) and use LiftRules.dispatch mechanism. But you could also
let the container to serve the file. By default Lift is trying to
serve .html, .xhtml, .htm, .xml etc.. You can write your own rules by
setting
LiftRules.liftRequest = {
case req = true // Pattern match whatever you like and return a
Boolean
}
If Lift cannot find a resource for some reason and you want the
container (or subsequent filters) to handle that you can set
LiftRules.passNotFoundToChain = true
On 4 mar., 17:09, DavidV david.v.villa...@gmail.com wrote:
I am also looking to download a file from the server that is hosting
my Lift web app. There is a very useful fileUpload method in the
SHtml class and I was wondering if there may be something similar for
a file download? I was unable to find anything, and searching for
Lift or Scala Lift download on Google returns nothing but pages to
download the libraries, plugins or source code. I suppose I could use
the StreamingResponse, but I am already saving the file I need to the
server and it would be nice to be able to download it to any client
computer with the typical Browse button, similar to the upload,
Thanks,
David
On Feb 14, 3:58 pm, Gang wangga...@gmail.com wrote:
Thanks Tim, that's exactly what I'm looking for!
On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu wrote:
See:
http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr...
Construct the CSV in memory and just then stuff it into a streaming
response as a byte array.
Cheers, Tim
On 14 Feb 2010, at 16:18, Gang wrote:
Hi,
I have a question and it may not be a pure Lift one. But since I'm
working on a Lift app and this group is the most responsive one I have
seen, might just try it here.
I need todownloaddata from database in CSV format. What is the best
approach within Lift framework? Do I have to write the data on the
server somewhere and then provide user with a link? I have tried to
google scala, lift,filedownload..., but could not come up with
what I'm looking for. Maybe I didn't use the right key words in
search? Thanks in advance!
Brs
Gang
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[Lift] Re: File Download
Thanks Tim, that's exactly what I'm looking for! On Feb 14, 11:27 am, Timothy Perrett timo...@getintheloop.eu wrote: See: http://blog.getintheloop.eu/2009/3/19/understanding-lift-s-streamingr... Construct the CSV in memory and just then stuff it into a streaming response as a byte array. Cheers, Tim On 14 Feb 2010, at 16:18, Gang wrote: Hi, I have a question and it may not be a pure Lift one. But since I'm working on a Lift app and this group is the most responsive one I have seen, might just try it here. I need to download data from database in CSV format. What is the best approach within Lift framework? Do I have to write the data on the server somewhere and then provide user with a link? I have tried to google scala, lift, file download..., but could not come up with what I'm looking for. Maybe I didn't use the right key words in search? Thanks in advance! Brs Gang -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/liftweb?hl=en.- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
