Re: How to check if the client dropped the connection

2009-09-29 Thread aaime74
Markus Meyer wrote: > > I'm not saying you should store the whole map all at once. My approach > was to dynamically cache requests that the client may want to make in > advance. An easy example would be if a client makes a request for the > city center, you create the map for the city center

Re: How to check if the client dropped the connection

2009-09-29 Thread aaime74
awarnier wrote: > > aaime74 wrote: > ... > Hi. > Kind of restarting from the beginning, I think that the first question > to ask is whether whatever method which actually does the rendering of > the maps, and which is "heavy" in terms of resources, is capable

Re: How to check if the client dropped the connection

2009-09-28 Thread aaime74
Markus Meyer wrote: > > Jason Brittain schrieb: >> The first time you call flush, it will send the HTTP response >> headers to the client, so you would need to first set the headers before >> flushing. That sounds difficult for you to do because you're writing an >> image, and one of the heade

Re: How to check if the client dropped the connection

2009-09-28 Thread aaime74
jasonb wrote: > > Hi Andrea. > > When the client disconnects, and your servlet tries to write to the output > stream, Tomcat will throw a ClientAbortException (you may have already > seen > this): > > http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/catalina/connector/ClientAbortExceptio

How to check if the client dropped the connection

2009-09-28 Thread aaime74
Hi, I'm working on the development of an open source application, GeoServer, implementing the Web Map Service specification. The specification allows a client to request maps using simple GET requests like: http://sigma.openplans.org:8080/geoserver/wms?WIDTH=431&SRS=EPSG%3A4326&LAYERS=tiger-ny&HE

Re: Any way to check the client abruptly close the connection?

2007-07-08 Thread aaime74
Johnny Kewl wrote: > > This is an interesting question, and I'm going to "guess"... > If you in a JSP page, I dont think the error can be trapped. > > If you in a servlet, yes I think a try catch will detect it, but only if > you > actually write something. > Which I can't do. The WMS is an

Any way to check the client abruptly close the connection?

2007-07-08 Thread aaime74
Hi, I'm fighting a relatively nasty issue. I've implemented a WMS service (Web Map Server), which basically returns a geographic map in response to a request stating which data to use, which area to display, which style to apply to the map, and so on. The main trouble is that building the map can