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Article
· Apr 1, 2019 3m read
Closures in ObjectScript

After many sleepless nights it's a pleasure to announce the newer, better, moderner ObjectScript compiler which implemented pretty much everything you ever wanted to have in modern ObjectScript:

  • Design objective of this new compiler is to parse reasonable subset of current ObjectScript syntax which will look readable for stranger, and not scare them with 1 letter syntax. The good start for compiler was the old-good COS Guidelines from here https://github.com/intersystems-ru/cos-guidelines
  • For reasons we mentioned above we do not parse 1 letter syntax. It's declared evil;
  • We do not handle dotted syntax for the same reason - modern syntax with {} is proper replacement for dotted syntax blocks;

But we not only parse the modern ObjectScript syntax, we have implemented finally the long-standing request which we always dreamed about. Closures!

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Hi Community,

This is my first post in the developer community - would appreciate any feedback!

For testing or demo purposes, you may want to send emails from your Interoperability Production. In this post then I will walk you through connecting an InterSystems IRIS Production to Gmail so you can use it to send emails alerts.

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Overview

We often run into connectivity problems with HealthShare (HS) deployments in Microsoft Azure that have multiple HealthShare components (instances or namespaces) installed on the same VM, especially when needing to communicate to other HS components while using the Azure Load Balancer (ILB) to provide mirror VIP functionality. Details on how and why a load balancer is used with database mirroring can be found this community article.

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Hi, developers!

Currently, I'm working on a project that requires highly dynamic event management. In the context of the Java programming language, my first instinct should be to opt for the "Observer Pattern", which is an approach to managing interactions between objects by establishing a notification mechanism. It allows multiple observers to react to changes in the state of a subject autonomously, promoting code flexibility and modularity. If you are not familiar with this design pattern, check out Wikipedia to find more information about it.


While it's natural and commonly used in certain programming languages as Java and C++, in ObjectScript, it's quite a different story.

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I want to understand how this message is build:

[SYSTEM MONITOR] CPUusage Alert: CPUusage = 99, 99, 99 (Max value is 85).

Caché keep a log of cpu usage (99,99,99) and how is the frequency of check of this?

how can i chance the max value? is that possible?

Best,

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Doing a new project with %JSON.Adaptor, unexpectedly realized that %JSON.Adaptor does not support export to native JSON. %JSONExport just outputs directly to the current device, and there are two more methods %JSONExportToString, and %JSONExportToStream.

In conjunction with generating REST from swagger specification, where any generated method accepts as a result %DynamicObject, which is good.

I have multiple places in my REST where I have to return JSON for an object, but I have to modify the result a bit, just extend it with some other way.

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Languages like Java and C++ allows to develop a multi-threaded program with two or more parts that can run concurrently and each part can handle a different task at the same time making optimal use of the available resources specially when your computer has multiple CPUs. Is it possible In ObjectScript? If yes, Where I can get a good sample or application?

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This post provides further detail on the suggestions from the DeepSee Troubleshooting Guide about what to do if a user is not able to view a listing in a DeepSee cube, but instead sees errors like this:

ERROR #5540: SQLCODE: -99 Message: User <username> is not privileged for the operation [zfindStatement+118^%SQL.DynamicStatement.1:<namespace>] (8)

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Article
· Jun 4, 2019 1m read
Favourite editor for programming

There are many projects which work on InterSystems products, and they are not always written only in ObjectScript. I think some of you working with different programming languages and already have some experience with other editors, and hope you already have a favourite online editor.

My current choice is VSCode, whereas you may already know I have added an extension to support ObjectScript.

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Question
· Nov 7, 2016
CLS location from INT code

Given location in INT code, as Cache usually reports on error (zWriteReport+25^SomeFile.1), is there any programmatic way to determine corresponding place in original source code?

Jiri

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Hello,

I am writing a POST API using IRIS. My POST API Endpoint invokes a Business Service -> Business Process -> Business Operation in an IRIS production .

I am trying to import the JSON payload into a JSON enabled class and work with the JSON class in my Business Process and invoke different Business operation(s) based on the data supplied. This works fine for simpler JSON schemas.

The POST API I am writing now needs to handle a complex schema. I.e. one of the Item on my JSON schema ("recipient") can be an array of "anyof" 5 different schemas.

e.g.

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Hi all-

We used to have this Java applet in our CSP page to "print all" and "download all" PDF medical reports. We want this applet so that the user won't have to open each PDF in the browser just to print it.

But now most browsers do not support Java applets anymore due to security concerns, so that Java application is down. We tried to migrate to Java Web Start but don't know how to invoke the JNLP file from the CSP page. I am new to Cache so any help would be greatly appreciated.

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After upgrading an Information Exchange/HealthShare instance that has a registry namespace, you may notice that the Caché audit log gets filled with frequent login failures by the HS_Services user (check this by going to Management Portal > System Administration > Security > Auditing > View Audit Database). Clicking the “details” shows event data like:

Error message: Access Denied
CSP Application: /csp/healthshare/hsregistry
Authentication: Delegated
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In previous articles on iKnow, we described a number of demo applications (iKnow demo apps parts 1, 2, 3, 4 & 5) that are either part of the regular kit or can be easily installed from GitHub. All of those applications assumed you already had your iKnow domain ready, with your data of interest loaded and ready for exploration. In this article, we'll shed more light on how exactly you can get to that stage: how you define and then build a domain.

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I am using Ensemble FTP adapter to monitor file directory for files that require SFTP transfer to remote server using public/private keys for remote server authentication.

This works great in my engineering development space where file protections are loose.

I want to apply "principle of least privilege" regarding the public and private key files specified in FTP Outbound adapter Business Operation.

Can anyone recommend (Linux) permissions that allow Ensemble to execute the SFTP operation but minimizing access to the key files?

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