Cache data types conversion

Question

Question

Rochdi Badis · Nov 19, 2022

#Ensemble

Hi Guys,

I've this :

- NodeJS example,

let buf = Buffer.from('02010605166E2A0923100950205450524F424520303030323730', 'hex')

let temper = buf.readInt16BE(7) / 100

- Python example,

import binascii

buf = binascii.a2b_hex('02010605166E2A0923100950205450524F424520303030323730')

temper = int.from_bytes(x[7:9],byteorder='big') / 100

what would be the equivalent of this using Cache scripts?

Thanks Guys

Product version: Caché 2014.1

Discussion (4)3

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score 0 · Answer 1 · 2022-11-22T05:08:38-05:00

Hi @Rochdi Badis

With COS I don't know if is possible to do what you need. If you are using Ensemble, you can try to to achieve your needs using JavaGateway.

Some useful links:

https://www.baeldung.com/java-byte-arrays-hex-strings

https://stackoverflow.com/questions/7619058/convert-a-byte-array-to-integer-in-java-and-vice-versa

Let we know how you resolved this.

Regards.

score 0 · Answer 2 · 2022-11-22T07:19:49-05:00

set bufHex = "02010605166E2A0923100950205450524F424520303030323730"
set buf = "" 
for i=1:2:$l(bufHex) set buf = buf _ $char($zhex($extract(bufHex, i, i+1)))
write $sconvert(buf, "U2", /*big*/ 1, /*pos*/ 8) / 100

score 1 · Answer 3 · 2022-11-22T07:23:44-05:00

set buf = ##class(%xsd.hexBinary).JSONToLogical("02010605166E2A0923100950205450524F424520303030323730")

write $sconvert(buf, "U2", /*big*/1, /*pos*/8) / 100

score 0 · Answer 4 · 2022-11-23T06:18:16-05:00

Well, if it was me, I'd keep that and the rest of my logic in JavaScript/Node.js and access the Cache database using the mg-dbx interface.