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$stop(),silent=T)
try(suppressWarnings(rm(rD, envir = .GlobalEnv)), silent=T)
try(suppressWarnings(rm(remDr, envir = .GlobalEnv)), silent=T)
gc()
rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))
})
If I try this twice I get this error:
Error in wdman::selenium(port = port, verbose = verbose, version = version, :
Selenium server signals port = 4444 is already in use.
Thanks!
r selenium rselenium ropensci
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
635115
add a comment |
Question: Is there a function that will open a selenium browser if none is already open, or close the current browser and reset the port and relaunch a browser?
Rationale: I work with big loops in RSelenium that occasionally crash, so sometimes I don't know if a port is open or browser is open in looped code. I'd like a RSelenium launcher that launches a browser regardless if one is open or if the port is in use.
Attempt: I tried this approach with tryCatch() but I still get the wdman error that a port is open if I try to launch it twice:
browserpreference <- "chrome"
tryCatch({rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))}
,error=function(rD,remDr){
try(remDr$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
635115
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$stop(),silent=T)
try(suppressWarnings(rm(rD, envir = .GlobalEnv)), silent=T)
try(suppressWarnings(rm(remDr, envir = .GlobalEnv)), silent=T)
gc()
rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))
})
If I try this twice I get this error:
Error in wdman::selenium(port = port, verbose = verbose, version = version, :
Selenium server signals port = 4444 is already in use.
Thanks!
r selenium rselenium ropensci
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
635115
Question: Is there a function that will open a selenium browser if none is already open, or close the current browser and reset the port and relaunch a browser?
Rationale: I work with big loops in RSelenium that occasionally crash, so sometimes I don't know if a port is open or browser is open in looped code. I'd like a RSelenium launcher that launches a browser regardless if one is open or if the port is in use.
Attempt: I tried this approach with tryCatch() but I still get the wdman error that a port is open if I try to launch it twice:
browserpreference <- "chrome"
tryCatch({rD <- rsDriver(port = 4444L, browser = paste0(browserpreference))}
,error=function(rD,remDr){
try(remDr$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
635115
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
635115
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
635115
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
635115
asked Nov 25 '18 at 4:25
Neal BarschNeal Barsch
635115
635115
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 |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53464640%2flaunch-rselenium-browser-regardless-of-port-open-closed%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53464640%2flaunch-rselenium-browser-regardless-of-port-open-closed%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
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