Launch RSelenium Browser regardless of port open/closed
Question: Is there a function that will open a selenium browser if none is already open, or close the current browser and reset the port and relaunch a browser?
Rationale: I work with big loops in RSelenium that occasionally crash, so sometimes I don't know if a port is open or browser is open in looped code. I'd like a RSelenium launcher that launches a browser regardless if one is open or if the port is in use.
Attempt: I tried this approach with tryCatch() but I still get the wdman error that a port is open if I try to launch it twice:
browserpreference <- "chrome"
tryCatch({rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))}
,error=function(rD,remDr){
try(remDr$close(), silent=T)
try(rD$server$stop(),silent=T)
try(suppressWarnings(rm(rD, envir = .GlobalEnv)), silent=T)
try(suppressWarnings(rm(remDr, envir = .GlobalEnv)), silent=T)
gc()
rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))
})
If I try this twice I get this error:
Error in wdman::selenium(port = port, verbose = verbose, version = version, :
Selenium server signals port = 4444 is already in use.
Thanks!
r selenium rselenium ropensci
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
add a comment |
Question: Is there a function that will open a selenium browser if none is already open, or close the current browser and reset the port and relaunch a browser?
Rationale: I work with big loops in RSelenium that occasionally crash, so sometimes I don't know if a port is open or browser is open in looped code. I'd like a RSelenium launcher that launches a browser regardless if one is open or if the port is in use.
Attempt: I tried this approach with tryCatch() but I still get the wdman error that a port is open if I try to launch it twice:
browserpreference <- "chrome"
tryCatch({rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))}
,error=function(rD,remDr){
try(remDr$close(), silent=T)
try(rD$server$stop(),silent=T)
try(suppressWarnings(rm(rD, envir = .GlobalEnv)), silent=T)
try(suppressWarnings(rm(remDr, envir = .GlobalEnv)), silent=T)
gc()
rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))
})
If I try this twice I get this error:
Error in wdman::selenium(port = port, verbose = verbose, version = version, :
Selenium server signals port = 4444 is already in use.
Thanks!
r selenium rselenium ropensci
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
What operating system are you on?
– hrbrmstr
Nov 25 '18 at 11:20
@hrbmstr I use both mac and windows, but primarily windows for RSelenium.
– Neal Barsch
Nov 29 '18 at 3:59
sapply(4444:4450, function(p) setNames(list(pingr::ping_port("localhost", p)), p))is a bit of toy code to see if there's something listening on a local port (allNA== very likely nothing there). It's cross platform and all in R (well, compiled C=>R) vs somesystem()-call based ones that could do something similar (hence my q abt OS)
– hrbrmstr
Nov 29 '18 at 13:37
add a comment |
Question: Is there a function that will open a selenium browser if none is already open, or close the current browser and reset the port and relaunch a browser?
Rationale: I work with big loops in RSelenium that occasionally crash, so sometimes I don't know if a port is open or browser is open in looped code. I'd like a RSelenium launcher that launches a browser regardless if one is open or if the port is in use.
Attempt: I tried this approach with tryCatch() but I still get the wdman error that a port is open if I try to launch it twice:
browserpreference <- "chrome"
tryCatch({rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))}
,error=function(rD,remDr){
try(remDr$close(), silent=T)
try(rD$server$stop(),silent=T)
try(suppressWarnings(rm(rD, envir = .GlobalEnv)), silent=T)
try(suppressWarnings(rm(remDr, envir = .GlobalEnv)), silent=T)
gc()
rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))
})
If I try this twice I get this error:
Error in wdman::selenium(port = port, verbose = verbose, version = version, :
Selenium server signals port = 4444 is already in use.
Thanks!
r selenium rselenium ropensci
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
Question: Is there a function that will open a selenium browser if none is already open, or close the current browser and reset the port and relaunch a browser?
Rationale: I work with big loops in RSelenium that occasionally crash, so sometimes I don't know if a port is open or browser is open in looped code. I'd like a RSelenium launcher that launches a browser regardless if one is open or if the port is in use.
Attempt: I tried this approach with tryCatch() but I still get the wdman error that a port is open if I try to launch it twice:
browserpreference <- "chrome"
tryCatch({rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))}
,error=function(rD,remDr){
try(remDr$close(), silent=T)
try(rD$server$stop(),silent=T)
try(suppressWarnings(rm(rD, envir = .GlobalEnv)), silent=T)
try(suppressWarnings(rm(remDr, envir = .GlobalEnv)), silent=T)
gc()
rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))
})
If I try this twice I get this error:
Error in wdman::selenium(port = port, verbose = verbose, version = version, :
Selenium server signals port = 4444 is already in use.
Thanks!
r selenium rselenium ropensci
r selenium rselenium ropensci
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
620114
620114
What operating system are you on?
– hrbrmstr
Nov 25 '18 at 11:20
@hrbmstr I use both mac and windows, but primarily windows for RSelenium.
– Neal Barsch
Nov 29 '18 at 3:59
sapply(4444:4450, function(p) setNames(list(pingr::ping_port("localhost", p)), p))is a bit of toy code to see if there's something listening on a local port (allNA== very likely nothing there). It's cross platform and all in R (well, compiled C=>R) vs somesystem()-call based ones that could do something similar (hence my q abt OS)
– hrbrmstr
Nov 29 '18 at 13:37
add a comment |
What operating system are you on?
– hrbrmstr
Nov 25 '18 at 11:20
@hrbmstr I use both mac and windows, but primarily windows for RSelenium.
– Neal Barsch
Nov 29 '18 at 3:59
sapply(4444:4450, function(p) setNames(list(pingr::ping_port("localhost", p)), p))is a bit of toy code to see if there's something listening on a local port (allNA== very likely nothing there). It's cross platform and all in R (well, compiled C=>R) vs somesystem()-call based ones that could do something similar (hence my q abt OS)
– hrbrmstr
Nov 29 '18 at 13:37
What operating system are you on?
– hrbrmstr
Nov 25 '18 at 11:20
What operating system are you on?
– hrbrmstr
Nov 25 '18 at 11:20
@hrbmstr I use both mac and windows, but primarily windows for RSelenium.
– Neal Barsch
Nov 29 '18 at 3:59
@hrbmstr I use both mac and windows, but primarily windows for RSelenium.
– Neal Barsch
Nov 29 '18 at 3:59
sapply(4444:4450, function(p) setNames(list(pingr::ping_port("localhost", p)), p)) is a bit of toy code to see if there's something listening on a local port (all NA == very likely nothing there). It's cross platform and all in R (well, compiled C=>R) vs some system()-call based ones that could do something similar (hence my q abt OS)– hrbrmstr
Nov 29 '18 at 13:37
sapply(4444:4450, function(p) setNames(list(pingr::ping_port("localhost", p)), p)) is a bit of toy code to see if there's something listening on a local port (all NA == very likely nothing there). It's cross platform and all in R (well, compiled C=>R) vs some system()-call based ones that could do something similar (hence my q abt OS)– hrbrmstr
Nov 29 '18 at 13:37
add a comment |
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What operating system are you on?
– hrbrmstr
Nov 25 '18 at 11:20
@hrbmstr I use both mac and windows, but primarily windows for RSelenium.
– Neal Barsch
Nov 29 '18 at 3:59
sapply(4444:4450, function(p) setNames(list(pingr::ping_port("localhost", p)), p))is a bit of toy code to see if there's something listening on a local port (allNA== very likely nothing there). It's cross platform and all in R (well, compiled C=>R) vs somesystem()-call based ones that could do something similar (hence my q abt OS)– hrbrmstr
Nov 29 '18 at 13:37