The InterSystems Callout Gateway allows InterSystems Data Platform applications to invoke shell or operating system commands, run external programs in spawned processes, and call functions from specially written shared libraries.
This is the second part of my long post about package managers in operating systems and language distributions. Now, hopefully, we have managed to convince you that convenient package manager and rich 3rd party code repository is one key factor in establishing of a vibrant and fast growing ecosystem. (Another possible reason for ecosystem success is the consistent language design, but it will be topic for another day.)
Hi I've created a word macro in order to convert doc to txt via the command line, this works fine via the command line by myself or another user but when I try as an the intersystems user which runs under LocalSystem it doesn't work.
So can I change the user, or set the $ZF to run as a different user?
Or do I have to try another way to convert doc to txt - it's looking like libreOffice?
I just wanted to stick with word because I could be guaranteed on the result being accurate.
I have a project which requires the sending of JSON messages to an external service provider using REST. The service provider requires the message contents to be signed.
It is often necessary to run some external command such as a python program or a shell script from inside Caché/Ensemble. There are three ways of doing this:
Some time ago I got a WRC case transferred where a customer asks for the availability of a raw DEFLATE compression/decompression function built-in Caché.
When we talk about DEFLATE we need to talk about Zlib as well, since Zlib is the de-facto standard free compression/decompression library developed in the mid-90s.
Zlib works on particular DEFLATE compression/decompression algorithm and the idea of encapsulation within a wrapper (gzip, zlib, etc.). https://en.wikipedia.org/wiki/Zlib
I recently helped a site investigate a problem that appeared after they upgraded their Windows instance of Caché from 2015.1 to 2017.1. A terminal session launched from the server's desktop cube was unable to run OS-level commands using the $ZF(-1) function. For instance, using the no-op command "REM" as follows:
write $zf(-1,"rem")
was returning -1, indicating that the Windows command could not be issued.
When my COS code is executing in a Caché process it might want to interact with the host operating system. For the purpose of this post I'm focusing on a Windows host, but much of it applies to other host OS platforms as well.
A common example of host OS interaction is when my process wants to read from or write to a file. What credentials will apply when Windows is checking whether or not to allow me access to the file?
To answer that we need to consider another question. How did our process start?
I have a requirement to replace $ZF("%ZSET_DIR","/hold/rsm") to its equivalent Cache Class. The $ZF("%ZSET_DIR") sets the Current folder equivalent to "cd" command in Unix.
I am using java gateway imported/proxy classes and JG business service. I need to load a dll at run time.
I use System.loadLibrary/System.load when in java. I’ve tried $ZF(-3,” C:\Windows\System32\pteidlibj.dll”) and $ZF(-4,1,"C:\Windows\System32\pteidlibj.dll") but I’m getting <DYNAMIC LIBRARY LOAD> error.
I am having an intermittent issue that when I make a call to MSSQL from a BPL that the response does not come back in the amount of time required. Since the call from the BPL is synchronous I tried changing the timeout to 60 but it has not helped (see below). Is there anyway to guarantee that the call waits long enough for a response before continuing on?
We have two live servers running DeepSee dashboards for users. One of the servers can print a widget to a pdf file, and the other can't.
I learned that 1) a Java JRE needed to be installed on the second server, and 2) it's trying to run an OS command to render a pdf file (details below).
We have a piece of Caché software which calls an external utility using $zf(-1,command). It works fine under Linux, but under Windows an external process occasionally hangs (due to some internal problems out of the scope here) and need to be killed programmatically. Having PID, it's easy to kill a process. If a Caché process is called with JOB command, the caller can easily get its PID from $zchild, but alas $zf(-1) does not seem to return the similar info. Is it possible to get it somehow?
I am trying to run a command line code using $zf(-1) in cache terminal. it is returning access denied error.
I have tried to run the code in cmd itself it is also throwing Access denied error. But if opened cmd as administrator and run the same code it is working perfectly. I am using windows system.
Hence i need to know how can i run the cmd line code as administrator using our terminal or studio. Please help me out.
And related question: is there a way to return several values (which may contain commas) from one callout call. Or rather what's the best approach when doing that?
I am working on a BPL to take data from a MS SQL database and create an HL7 Materials Message for our EMR. I have done this plenty of times in the past however I am running into an error.
"Remote Gateway Error: JDBC Gateway SP execute(0) error 0: Access to the remote server is denied because no login-mapping exists."
What is confusing is that this BPL doesn't differ from any of my other BPLs in connecting to MS SQL Server. I know I am missing something..
I am trying to grab a specific zip file from a webpage but once I grab the zip file I need to grab a specific file within that zip file and I was hoping someone could explain how to do this or provide an example
However, this child process need to refer some shared libraries in RUNTIME,so I have to set up the proper paths to the environment variable LD_LIBRARY_PATH, is anyone know how to do this?
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