twosigma / beakerx

Beaker Extensions for Jupyter Notebook
http://BeakerX.com
Apache License 2.0
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KDB autotranslation get #3530

Closed amaurydar closed 7 years ago

amaurydar commented 8 years ago

I am running into a bug when setting a KDB variable as a beaker object and then getting it from KDB:

.bk.s[foo; til 380]; .bk.gfoo; works as expected .bk.s[foo; til 390]; .bk.gfoo; raises the error kx.c$KException: unclosed } at 1912

The part that produces the error is only getting. The variable is well set and can be retrieved from another language like python.

Trying to debug, I ran `$.bk.bc_get["/rest/namespace/get?name=", "foo"]

HTTP/1.1 200 OK
Content-Type: application/json
Server: Jetty(8.1.13.v20130916)

{
  "name" : "foo",
  "session" : "QkLPfg",
  "value" : [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393

and

count .bk.bc_get["/rest/namespace/get?name=", "foo"] 2000

It seems that for some reason the response from the HTTP GET is cut after 2000 characters.


As a side problem, the way beaker displays q strings is a bit annoying. Q strings are just character arrays and beaker displays them as such :

["H","T","T","P","/","1",".","1"," ","2","0","0"," ","O","K","\r","\n","C","o","n","t","e","n","t","-","T","y","p","e",":"," ","a","p","p","l","i","c","a","t","i","o","n","/","j","s","o","n","\r","\n","S","e","r","v","e","r",":"," ","J","e","t","t","y","(","8",".","1",".","1","3",".","v","2","0","1","3","0","9","1","6",")","\r","\n","\r","\n","{","\n"," "," ","\"","n","a","m","e","\""," ",":"," ","\"","f","o","o","\"",",","\n"," "," ","\"","s","e","s","s","i","o","n","\""," ",":"," ","\"","Q","k","L","P","f","g","\"",",","\n"," "," ","\"","v","a","l","u","e","\""," ",":"," ","["," ","0",","," ","1",","," ","2",","," ","3",","," ","4",","," ","5",","," ","6",","," ","7",","," ","8",","," ","9",","," ","1","0",","," ","1","1",","," ","1","2",","," ","1","3",","," ","1","4",","," ","1","5",","," ","1","6",","," ","1","7",","," ","1","8",","," ","1","9",","," ","2","0",","," ","2","1",","," ","2","2",","," ","2...

Casting them as symbols forces beaker to display them in a more readable way, but it would be more convenient if by default beaker could print strings like in a q console.

Thanks for your help!

scottdraves commented 8 years ago

I don't see the 2000 char limit: https://pub.beakernotebook.com/#/publications/56c52cc6-b9ec-4188-92e3-d573368a9b21 390 and higher values work fine.

as for displaying strings, i see what you mean. here's a fix but it's kind of a hack (it just recognizes any array of chars at the top level from kdb and converts to java string). what about arrays of strings etc? https://github.com/twosigma/beaker-notebook/compare/spot/3530?expand=1