• referring to CSP.... you  let me assume you are working from Mgmt Portal
  • next you say:  I am using the Intersystem ODBC driver

This is a contradiction  as CSP doesn't use ODBC driver
So what are you really assuming to do ??

Anyhow in both cases a SQL String delimiter (') entered in a %String property aka VARCHAR is always presented as it was entered.
I verified it over an external ODBC viewer +  Intersystem ODBC driver as well as over JDBC:  no issue.

For ODBC on Windows just use 64bit Version on 64bit platforms.

in addition, you may verify your query also from the terminal prompt without any eventual timeout:

USER>do $system.SQL.Shell()
SQL Command Line Shell
----------------------------------------------------
 
The command prefix is currently set to: <<nothing>>.
Enter q to quit, ? for help.
USER>>  << entering multiline statement mode >>
        1>>SELECT
        2>>CallbackComment
        3>>FROM SQ.CBPhoneResult_View Where PhoneDateODBC = '2018-04-09'
        4>>go

 

if you define a method   mymethod() as something

You are expected to terminate ist either by QUIT anyvalue  or  RETURN ayvalue

in your example you announce a %Status. so Quit $$$OK would be fine like this

ClassMethod getFile() as %Status
{
    set filename = "/home/test.json"
    set newArray={}.%FromJSON(filename)
    write "New entity:"_newArray.%ToJSON()
    quit $$$OK
    }

if you ommit  as %Status you can allso forget the ending QUIT

You are wrong:   getFile+8 is 

    set i2 = resultSet.rowSet.%GetIterator()


so either resultSet. or resultSet.rowSet is not what you expect it to be.

first you do 

set sc = stream.LinkToFile(filename)

 but you don't check the success code

And with "path/to/file.json" the file name looks more than suspicious to be correct.

next you do set obj=...   but this obj isn't used at all.

next 

set jsonObj = [].%FromJSON(filename)

and there is the fundamental mistake as your variable filename is

set filename = "path/to/file.json"


which is anything else than the expected JSON array

 you may have lost some important lines during cut/paste from your example

 Deserializing from JSON to a dynamic object may have important information for you

I try a simple explanation and you should try to find some docs on HTTP:
So I leave out several steps in between to illustrate the basic actions.

your browser sends a request

GET /index.html HTTP/1.1
Host: www.example.com

and if it is successful the server replies

HTTP/1.1 200 OK
Date: Mon, 23 May 2005 22:38:34 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 138
Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
Server: Apache/1.3.3.7 (Unix) (Red-Hat/Linux)
ETag: "3f80f-1b6-3e1cb03b"
Accept-Ranges: bytes
Connection: close

<html>
<head>
  <title>An Example Page</title>
</head>
<body>
  Hello World, this is a very simple HTML document.
</body>
</html>


The highlighted part between HTTP and your first <html> is prepared or modified  if not default in OnPreHTTP().
It has to be ready BEFORE sending the reply. 

The delimiter between HTTP part and the content transmitted is just an empty line.
The closing is 2 empty lines.

For the items you can influence see class %CSP.Response

you do .ReadLineIntoStream()  
doc says: https://docs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cls

This reads from the stream until it find the LineTerminator and returns this as a stream. If the stream does not contain the line terminator this can potentially be the entire stream.

and your error message:  Premature end of data 12 Line 1 Offset 1     

indicates that you have hit some character interpreted as line terminator after 12 characters. (rather short for  JSON)
My guess: your JSON input is a multiline input with enough line terminators inside

As a consequence your JSON input is incomplete.

Suggested workaround

  • get length of your stream method SizeGet()
  • read full stream ignoring line terminators using method Read(ByRef len As %Integer, ByRef sc As %Status) as %CacheString

eventually, it might be necessary to remove the line terminators before  %FromJSON

with large numbers exceeding 64bit integers the logic with integer division \ and modulo #
was causing wrong results. So I changed it to pure string interpretation.

Recommendation:
pass all numbers as strings  to escape from numeric normalization

NOT  write $$^zahl(102100900002103201200301.6123100)
einhundertzwei Trilliarden einhundert Trillionen neunhundert Billiarden zwei Billionen einhundertdrei Milliarden zweihundertein Millionen zweihundert Tausend

BUT  write $$^zahl("102100900002103201200301.6123100")
einhundertzwei Trilliarden einhundert Trillionen neunhundert Billiarden zwei Billionen einhundertdrei Milliarden zweihundertein Millionen zweihundert Tausend dreihunderteins Komma sechs eins zwei drei eins null null

If you feel think this is exaggerated think about banking calculations for countries within low rated currencies.

Hola Francisco,
You motivated me to do something similar for German.
It's is straightforward .int routine and you are welcome to add the code to your project.
GermanNumberToText 
I did it up to 10e21, negatives and unlimited decimals.  (except what is cut down due to internal limits)
I tried to catch all the irregular structures of the language like singular/plural, varying genders,  upper/lower case
and tried to keep the output readable:

 w $$^zahl(-190000103201101.3903)
Minus 
einhundertneunzig Billionen einhundertdrei Millionen zweihundertein Tausend einhunderteins Komma drei neun null drei 

For quick copy:
Updated to avoid failover  from integer to floating format  for large numbers (2018-06-28 16:34 UTC)

zahl(num="",gen="") Public {
 ;;; convert number as German text
 ;;; w $$^zahl(-1123.505) >>>> Minus ein Tausend einhundertdreiundzwanzig Komma fünf null fünf

 set dec=$p(num,".",2),dec=$s(dec?1.N:$$dec(dec),1:"")
 if num=0 quit "null"_dec
 set neg=$S(num<0:"Minus ",1:"")

  if $l(neg) set num=$tr(num,"-")   
 if num=1 set gen=$zcvt(gen,"U") quit neg_"ein"_$case(gen,"W":"e","S":"es","M":"",:"s")
 if num<10e23 quit neg_$$trd($p(num,"."))_dec
 quit "*** Zahl zu groß ***"
}
 ;
dec(num) {
 set dec=" Komma"
 for p=1:1:$l(num) set dec=dec_" "_$$zig($e(num,p))
 quit dec
}
zig(num) {
 if num<10 quit $li($lb("null","eins","zwei","drei","vier","fünf","sechs","sieben","acht","neun"),num+1)
 if num<20 quit $li($lb("zehn","elf","zwölf","dreizehn","vierzehn","fünfzehn","sechzehn","siebzehn","achtzehn","neunzehn"),num-9)
 set zig=$e(num,*-1),zn=$e(num,*)
 set res=$s(zig=3:"dreißig"
           ,1:$li($lb(,"zwan",,"vier","fünf","sech","sieb","acht","neun"),zig)_"zig")
 if zn set res=$s(zn=1:"ein",1:$$zig(zn))_"und"_res
 quit res 
}
hun(num) {
 set hun=$e(num,*-2),zig=$e(num,*-1,*),res="",m="hundert"
 set res=$s(hun=1:"ein"_m
           ,hun>1:$$zig(hun)_m
           ,1:"" )
 quit $replace(res_$$zig(zig),"null","")
}
ein(res) {
 if $e(res,*-3,*)="eins" set res=$e(res,1,*-1)
 quit $replace(res,"null","")

tsd(num) ;1,000 10e3
 set tsd=$e(num,*-5,*-3),hun=$e(num,*-2,*),res=""
 if tsd set res=$$ein($$hun(tsd))_" Tausend "
 quit res_$$hun(hun)
}
mio(num) ;1,000,000 10e6
 set mio=$e(num,*-8,*-6),tsd=$e(num,*-5,*),m=" Million"
 set res=$s(mio=1:"eine"_m_" "
           ,mio>1:$$ein($$hun(mio))_m_"en "
           ,1:"")
 quit res_$$tsd(tsd)
}
mrd(num) ;1,000,000,000 10e9
 set mrd=$e(num,*-11,*-9),mio=$e(num,*-8,*),m=" Milliarde"
 set res=$s(mrd=1:"eine"_m_" "
           ,mrd>1:$$ein($$hun(mrd))_m_"n "
           ,1:"" )
 quit res_$$mio(mio)
}
bio(num) ;1,000,000,000,000 10e12
 set bio=$e(num,*-14,*-12),mrd=$e(num,*-11,*),m=" Billion"
 set res=$s(bio=1:"eine"_m_" "
           ,bio>1:$$ein($$hun(bio))_m_"en "
           ,1:"" )
 quit res_$$mrd(mrd)
}
brd(num) ;1,000,000,000,000,000 10e15
 set brd=$e(num,*-17,*-15),bio=$e(num,*-14,*),res="",m=" Billiarde"
 set res=$s(brd=1:"eine"_m_" "
           ,brd>1:$$ein($$hun(brd))_m_"n"_" "
           ,1:"" )
 quit res_$$bio(bio)
}
tri(num) {;1,000,000,000,000,000,000 10e18
 set tri=$e(num,*-20,*-18),brd=$e(num,*-17,*),m=" Trillion"
 set res=$s(tri=1:"eine"_m_" "
           ,tri>1:$$ein($$hun(tri))_m_"en"_" "
           ,1:"" )
 quit res_$$brd(brd)
}   
trd(num) ;1,000,000,000,000,000,000,000 10e21
 set trd=$e(num,*-23,*-21),tri=$e(num,*-20,*),m=" Trilliarde"
 set res=$s(trd=1:"eine"_m_" "
           ,trd>1:$$ein($$hun(trd))_m_"n"_" "
           ,1:"" )
 quit res_$$tri(tri)
}

Before dealing with adapters you should check if your UDP reaches your server at all.
You always get it if your server is on the same LAN segment as the sender.
But you depend on the setup of the router in the case that it is not in your LAN "neighborhood".

2nd your firewall should be willing to let pass this UDP.

Then you may check the traffic with some external tool to make it visible.

Or you check it directly from terminal following the instructions in IO device guide
chapter UDP Client/Server Communication

UDP is supported through the %Net.UDP class. This class provides methods
to Send() a packet to a specified destination and port,
to Recv() a packet from the socket,
and to Reply() to the transmitter of the last received packet.

you have the option to read by character  using

READ *var

Then you read exactly 1 byte in its  decimal representation 

set file="C:\ZZ\myfile.bin"
open file:"RS":0  else  write "file not open", ! quit
for  use file read *byte use 0 write byte,?5,"x\"_$ZHEX(byte),?12,"char:",$C(byte),!

Docs  on READ

You may also use %File Class and use a Read method with length 1