How create a webscript that return the output progressively?
We have a really long process an we want to trigger that progress with a webscript's endpoint
But because it is too long with too many steps, we want to write in the body the steps accomplished and I want them to be display into the client browser meanwhile the are created.
I tried flushing the outputStream, but that doesn't render the output into the browser inmediatly. The browser waits until all the steps finish for displaying the output
public class ProgressiveProcessWebscript implements AbstractWebScript
public final void execute(WebScriptRequest request,
WebScriptResponse response) {
...
response.setContentType(MIMETYPE_TXT);
OutputStream output = response.getOutputStream();
FilterOutputStream filterOutputStream = new FilterOutputStream(output);
for (Step step: stepList) {
step.execute();
filterOutputStream.write(step.getName().getBytes());
filterOutputStream.flush();
}
WebScriptResponse
java http spring-web
asked Nov 13 at 5:31
Troncador
1,77111437
add a comment |
We have a really long process an we want to trigger that progress with a webscript's endpoint
But because it is too long with too many steps, we want to write in the body the steps accomplished and I want them to be display into the client browser meanwhile the are created.
I tried flushing the outputStream, but that doesn't render the output into the browser inmediatly. The browser waits until all the steps finish for displaying the output
public class ProgressiveProcessWebscript implements AbstractWebScript
public final void execute(WebScriptRequest request,
WebScriptResponse response) {
...
response.setContentType(MIMETYPE_TXT);
OutputStream output = response.getOutputStream();
FilterOutputStream filterOutputStream = new FilterOutputStream(output);
for (Step step: stepList) {
step.execute();
filterOutputStream.write(step.getName().getBytes());
filterOutputStream.flush();
}
WebScriptResponse
java http spring-web
asked Nov 13 at 5:31
Troncador
1,77111437
add a comment |
We have a really long process an we want to trigger that progress with a webscript's endpoint
But because it is too long with too many steps, we want to write in the body the steps accomplished and I want them to be display into the client browser meanwhile the are created.
I tried flushing the outputStream, but that doesn't render the output into the browser inmediatly. The browser waits until all the steps finish for displaying the output
public class ProgressiveProcessWebscript implements AbstractWebScript
public final void execute(WebScriptRequest request,
WebScriptResponse response) {
...
response.setContentType(MIMETYPE_TXT);
OutputStream output = response.getOutputStream();
FilterOutputStream filterOutputStream = new FilterOutputStream(output);
for (Step step: stepList) {
step.execute();
filterOutputStream.write(step.getName().getBytes());
filterOutputStream.flush();
}
WebScriptResponse
java http spring-web
asked Nov 13 at 5:31
Troncador
1,77111437
We have a really long process an we want to trigger that progress with a webscript's endpoint
But because it is too long with too many steps, we want to write in the body the steps accomplished and I want them to be display into the client browser meanwhile the are created.
I tried flushing the outputStream, but that doesn't render the output into the browser inmediatly. The browser waits until all the steps finish for displaying the output
public class ProgressiveProcessWebscript implements AbstractWebScript
public final void execute(WebScriptRequest request,
WebScriptResponse response) {
...
response.setContentType(MIMETYPE_TXT);
OutputStream output = response.getOutputStream();
FilterOutputStream filterOutputStream = new FilterOutputStream(output);
for (Step step: stepList) {
step.execute();
filterOutputStream.write(step.getName().getBytes());
filterOutputStream.flush();
}
WebScriptResponse
java http spring-web
java http spring-web
asked Nov 13 at 5:31
Troncador
1,77111437
asked Nov 13 at 5:31
Troncador
1,77111437
edited Nov 13 at 5:37
asked Nov 13 at 5:31
Troncador
1,77111437
asked Nov 13 at 5:31
Troncador
1,77111437
asked Nov 13 at 5:31
Troncador
1,77111437
1,77111437
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can't simply write to the OutputStream and flush it. You must implement another concept. There is different solutions for your problem.
You should take a look to this great post: What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
The Ajax Long Polling solution is in my opinion probably the easiest way, since you don't need any other framework server-side.
answered Nov 13 at 5:55
LaurentG
7,87573553
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can't simply write to the OutputStream and flush it. You must implement another concept. There is different solutions for your problem.
You should take a look to this great post: What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
The Ajax Long Polling solution is in my opinion probably the easiest way, since you don't need any other framework server-side.
answered Nov 13 at 5:55
LaurentG
7,87573553
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
add a comment |
You can't simply write to the OutputStream and flush it. You must implement another concept. There is different solutions for your problem.
You should take a look to this great post: What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
The Ajax Long Polling solution is in my opinion probably the easiest way, since you don't need any other framework server-side.
answered Nov 13 at 5:55
LaurentG
7,87573553
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
add a comment |
You can't simply write to the OutputStream and flush it. You must implement another concept. There is different solutions for your problem.
You should take a look to this great post: What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
The Ajax Long Polling solution is in my opinion probably the easiest way, since you don't need any other framework server-side.
answered Nov 13 at 5:55
LaurentG
7,87573553
You can't simply write to the OutputStream and flush it. You must implement another concept. There is different solutions for your problem.
You should take a look to this great post: What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
The Ajax Long Polling solution is in my opinion probably the easiest way, since you don't need any other framework server-side.
answered Nov 13 at 5:55
LaurentG
7,87573553
answered Nov 13 at 5:55
LaurentG
7,87573553
answered Nov 13 at 5:55
LaurentG
7,87573553
answered Nov 13 at 5:55
LaurentG
7,87573553
7,87573553
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
add a comment |
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
then there is no way to do it just with a simple http request?
– Troncador
Nov 13 at 23:24
add a comment |
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