Question
Simon Bijl · Jan 15, 2021
Multiple servers or CSPGateways

Hello to you all,

Strange titel, so I'll explain better:

I now have IIS-server with a CSPGateway installed. This works fine. But I want to use a rest-service (or another zen-page, whatever.) on another cache-server

So on IIS i have an application called CSP. (/csp) This contains the handler to map it to the CSPGateway.
It has been configured to acces a cache-server (X) which will handle the request. But now I want, in this case, the request to be executed on another cache-server(Y).

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Do you have any experience / recommendations / best practice on how to update server-side data residing in a Cache database via a REST service?

A naïve approach would be to send a full JSON representation of the data object via an http POST to a method on a REST handler class:

<Route Url="/mydata/:id" Method="POST" Call="Update"/>

The problem I see here is, if only one of the data object's properties has changed, how do we know which? Or do we simply overwrite all properties?

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Question
shan wei · Jan 26, 2021
跨命名空间开发

编码中，zn “命名空间”这样跨命名空间使用操作会导致队列中具有很多 _sync:进程号,不知道这种情况是切换命名空间操作的问题还是使用的问题？对于这种跨命名空间有没有更好的应用方式？ In coding, the operation of Zn "namespace" across the namespace will lead to a lot of errors in the queue_ Sync: process number. I don't know if this is a problem of switching the namespace operation or using it? Is there a better way to apply this kind of cross namespace?

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Hi all,

We're creating a series of RESTful APIs that output data from a Cache database (made up of global storage that we've mapped to classes). I'm running into some problems with object-to-JSON conversions when relationships are involved. Eg:

ParentClass has children relationship to ChildClass

ChildClass has parent relationship to ParentClass

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Hi,

I have a PV1 repeating field that can contain multiple or a single value. I'd like to always pull the last value in the field but am not sure how to configure this in my DTL.

The repeating field is in PV1:50().1

Could somebody shed some light on this?

Examples:

|15081942~15081951~15108961~15280550|

|15081947|

|15081939~15081940|

Thanks

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Consider a Natural Key with an Identity (Serial) field.

I cannot seem to acquire the generated value after persisting my entity. That is, the returned entity by Spring Data's "save" does not have the generated value.

The value is generated by the database, and I can query it after repository.save(entity).

I have done some testing and created a Github repo with it...

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hi,

1. Created a class(test) and added a classmethod(checkdata).

2. Assigned a object with xml.

3. Created a new class for response and initialized in classmethod(checkdata).

4. Created a new class for request parsing with list of object parameter.

5. While parsing xml in request for list of object, the result count is "0". But the xml has value for "2" object list.

6. XML has follow:

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Hello community,

I would like to report about a security issue, that engages us for some time meanwhile.

We configured a restricted user to read data from a csp page to feed our nagios server with information about configuration items we would like to have an eye upon. The configuration of this user is the same in our production and in our development environment. The called method mainly reads data from lookup tables by sql queries and writes data to a temporary table, which is deleted in the begining.

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Question
Paul Goggin · Nov 1, 2016
WebSocket proxy to telnet

Is there any easy way to create a WebSocket to Telnet proxy within the Cache environment?

I would like to use a html5 telnet emulator to connect to cache, but need to create a proxy,

Is this a simple task?

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As per the documentation of QueueCountAlert:
Number of messages on this item's queue needed to trigger an Alert message to be sent. Note that no further alerts will be sent unless the number of messages on the queue drops below 80% of this number and then rises again to this number.
Note that this alert will be sent even if AlertOnError is False.
Zero means no alerts of this type will be sent.

Now, the question is,
If QueueCountAlert is set to 10, and the queue size become 11 we will be getting email once.

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Question
Ravi Akkiraju · Mar 14, 2021
Byte[] property type

One of the REST APIs we need to call takes one of request parameter as a byte array. I am trying to create a message class and couldnt figure out which is equivalent type that corresponds to Byte[]. I need to read from a jpg file and then convert it to byte[] before i invoke this webservice. Appreciate if anyone can point me in the right direction. I can use %Stream.FileBinary class to store the jpg file after loading from a file. trying to figure out how to convert that to byte[].

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Hi everyone.

I wonder, whether is it possible to get description of emoji in COS.

For example, I have data with emojis like 🙏 in database, that should be delivered to transaction system via service. But service doesn't support emojis, so I want to convert emoji to its unicode description like "Person with Folded Hands". Is it possible? I'll be grateful for help

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Running TuneTable accounts among other the parameter named Block Count. In documentation, we see that this is an approximate numbers of 2K-blocks in which SQL-maps are stored. Databases in recent Cache doesn't support 2K-physical blocks so SQL-blocks are not physical blocks as it seems. So two questions:

- what are these blocks?

- how knowledge about count of blocks can help in SQL optimization?

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Dear Folks,

I have recently studied deepsee and developed few dashboards needed for our web app users. I am trying to embed them in our existing web app which uses angular with delegated user access. I need to embed the native IRIS dashboard into it. ( I can't use Highcharts or any other js tools).

How do I setup the dashboards to work with delegated authentication (Without providing access to management portal or other parts) ? Also should I use the default csp/{Namespace}/_DeepSee.UserPortal.DashboardViewer.zen? or any other web application URL ?

Thanks

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Hello,

When we need to create a utf-8 encoded XML file, we use the Charset property of %XML.Writer:

set writer=##class(%XML.Writer).%New()
set writer.Charset="UTF-8"

How can we create regular txt files with such encoding?

Our Cache Installations are 8 bit and not unicode.

Thanks,

Nael Naser eldeen

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Hello everyone,

First, thanks in advance for your help :-)

I noticed that a query called directly in a method of a class of a business operation does not return the same result as if I apply the same query in the same Caché database from Squirrel !!!

I don't understand why ???

Here is the query :

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Hi all,

I am looking for an implementation idea for displaying a large amount of data received from a webservice. This data are essentialy HL7-Message as a GlobalCharacter Stream and some metadata (status,processed,timecreated etc.).

Since I need sorting functionalities for those metadata a tablepane in a zen page seems to be suitable. i know there are different ways to provide data for the table but in this case it´s complicated to get them data fetched.

Consider the following steps

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Hello,

I'm using $ZF(-1) in a class method which will be invoked from a csp page.

What determines the environment of the spawned process? If I use $ZF(-1,"echo hello world > output.txt"), the resulting file is owned by cacheusr:cacheusr. However, when I use $ZF(-1,"printenv > output.txt"), the environment is from my personal unix account, no matter which Cache username I'm logged in under when running the web application.

Thanks

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