r - CURL handle goes Stale when inside foreach() -


alright, i've figured out can query website behind login screen csv report. thought, wouldn't better concurrently? afterall reports take lot longer produce others , if querying 10 different reports @ once way more efficient. i'm on head twice here playing around https protocols , parallel processing. think frankencode there though gives me 

"error in ( : task 1 failed - "stale curl handle being passed libcurl"

note "curl" current "html" variable did login successfully. happens in it's parallel chunk makes stale.

library(rcurl) library(doparallel) registerdoparallel(cores=4)  agent="firefox/23.0"   options(rcurloptions = list(cainfo = system.file("curlssl", "cacert.pem", package = "rcurl"))) curl = getcurlhandle() curlsetopt(   cookiejar = 'cookies.txt' ,   useragent = agent,   followlocation = true ,   autoreferer = true ,   curl = curl ) un="username@domain.com" pw="password"  html = postform(paste("https://login.salesforce.com/?un=", un, "&pw=", pw, sep=""), curl=curl)   urls = c("https://xyz123.salesforce.com/00o400000046ayd?export=1&enc=utf-8&xf=csv",           "https://xyz123.salesforce.com/00o400000045swu?export=1&enc=utf-8&xf=csv",           "https://xyz123.salesforce.com/00o400000045z3q?export=1&enc=utf-8&xf=csv")  x <- foreach(i=1:4, .combine=rbind, .packages=c("rcurl")) %dopar% {   xxx <- geturl(urls[i], curl=curl) }


Comments

Post a Comment

Popular posts from this blog

php - failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request -

this code i'm using find latitude , longitude of place: function coords($address){ echo $url="http://maps.googleapis.com/maps/api/geocode/json?address=".$address; $json = file_get_contents(urlencode($url)); $data = json_decode($json, true); print_r($data['results'][0]['geometry']['location']['lat']); print_r($data['results'][0]['geometry']['location']['lng']); } however returns warning: failed open stream: http request failed! http/1.0 400 bad request if use above code in simple procedure works fine not in function. note: have tried curl_init()... method produced same result? instead of encoding whole url encode address part. following code work fine $add='jamshoro phase 2'; $url="http://maps.googleapis.com/maps/api/geocode/json?address=".urlencode($add); $json = file_get_contents($url); $data = json_decode($json, true); print_r($data['r
Read more

java - How to filter a backspace keyboard input -

i have code gives message when key number pressed: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochararray().length - 1]; if (!(ch >= '0' && ch <= '9')) { system.out.println("the char entered not number"); t.consume(); } } }); now if press on wrong button , press backspace remove it, error message. how can add backspace input if statement? i have found answer: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochar
Read more

java - Show Soft Keyboard when EditText Appears -

i have code in android app, alert dialog , keyboard, , when dialog shown want keyboard appear. not , not sure why? here code: final alertdialog.builder alert = new alertdialog.builder(this); alert.settitle("title"); alert.setmessage("message"); final edittext input = new edittext(this); input.setinputtype(inputtype.type_class_number); alert.setview(input); input.setonfocuschangelistener(new view.onfocuschangelistener() { @override public void onfocuschange(view v, boolean hasfocus) { if (hasfocus) { log.i(tag, "in focus"); inputmethodmanager inputmethodmanager = (inputmethodmanager) getsystemservice(context.input_method_service); inputmethodmanager.showsoftinput(input, inputmethodmanager.show_implicit); } } }); but keyboard not appear though edit text in focus, , tell appear why, doesn't come up? thanks in advance.
Read more