If you have a flag on your database that you set after reading the records, and this flag has an Index, you should be fine. Why bother? I mean: You could set this to be run every hour and process the records that have the right flag...

But if you really need to run your service on a specific schedule I would suggest  changing your architecture. Try creating a Business Service without an adapter (ADAPTER=Ens.InboundAdapter) so you can call it manually through Ens.Director.CreateBusinessService(). On the Business Service, call a Business Process that will call a Business Operation and grab the data for you. Then your Business Process will receive the data and do whatever needs to be done with it, maybe calling other Business Operations.

If that works, create a task (a class than inherits from %SYS.Task.Definition) that will create an instance of your business service using Ens.Director and call it. Configure the task to run on whatever schedule you need such as "Once a day at 12PM" or "Every hour" or "On monday, at 12AM", etc.

Kind regards,

AS

Hi Eduard!

Without going too deep into your code and trying to enhance it, I can suggest you to:

1. Put this method on a utility class
2. Recode it so that it is a method generator. The method would use a variation of your current code to produce a $Case() that would simply return the position of a given property instead of querying the class definition in runtime.
3. Make the class you want to use it (ex: Sample.Address) inherit from it.

Of course, if this is a one-time thing, you could simply implement number 2. Or you could simply forget about my suggestion at all if performance isn't an issue for this scenario. By using a method generator, you eliminates from the runtime any inefficiency of the code used to (pre)compute the positions.

Kind regards,

AS

The documentation is very nice at explaining it:

http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY…

Hi!

     Assuming you meant "BPL" (Business Process Language) instead of "DTL" (Data Transformation Langue):

     If you simply want your Business Operation to try forever until it gets it done:

•  On the BPL, make a synchronous call or make an asynchronous call with a sync activity for it
•  On the BO, set FailureTime=-1. Also, try to understand the "Reply Code Actions" setting of your Business Operation. You don't want to retry for all kinds of errors. You probably want to retry for some errors and failure for others. If you set FailureTime=-1 and your Reply Code  Actions decides to retry for that kind of error, it will retry forever until it gets it done. If your Reply code Actions decides to fail for other types of errors, it will return an error to your Business Process.
•  If you know that, for some errors, the BO will return a failure, protect the call you just did on your BPL with a scope action so you can capture this and take additional actions.

More about "Reply Code Actions" here.

Kind regards,

Amir Samary

Hi!

If you are not using OS single sign-on, this shell script should do it:

#!/bin/bash

csession AUPOLDEVENS <<EOFF
SuperUser
superuserpassword
ZN "%SYS"
Do ^SECURITY
1
3




halt
EOFF

Where:

• SuperUser - Is your username
• superuserpassword - Is your SuperUser password

I have chosen SECURITY menu options 1, then option 3. Then I hit ENTER until I exited ^SECURITY routine and terminated the session with the halt command.

If you are using OS single sign-on, remove these two first lines since Caché won't ask for them.

The blank lines after number 3 are the ENTERs you enter to go up into the menu hierarchy until you exit.

The halt is necessary to avoid an error such as the following:

ERROR: <ENDOFFILE>SYSTEMIMPORTALL+212^SECURITY
%SYS>
<ENDOFFILE>
<ERRTRAP>

You can do more complex stuff with this technique such as validate errors and return unix error codes to your shell so that you can know if the operation was successful or not:

#!/bin/bash

csession INSTANCENAME <<EOFF
ZN "MYNAMESPACE"

Set tSC = ##class(SomeClass).SomeMethod()
If $System.Status.IsError(tSC) Do $System.Status.DisplayError(tSC) Do $zu(4,$j,1) ;Failure!

Do $zu(4,$j,0) ;OK!
EOFF

The $zu(4,$j,rc) will halt the session and return the return code on rc to your shell script. As you can notice, the Halt command is not necessary when using this $zu function.

I hope that helps!

Kind regards,

AS

This is a quick an dirty code I just wrote that can convert simple JSON strings to XML. Sometimes, the JSON will be simple enough for simple code like this... I am not a JSON expert but maybe this can be a good starting point for something better.

This will work only on Caché 2015.2+.

Call the Test() method of the following class:

Class Util.JSONToXML Extends %RegisteredObject
{

ClassMethod Test()
{
    Set tSC = $System.Status.OK()
    Try
    {
        Set oJSON={"Prop1":"Value1","Prop2":2}
        Set tSC = ..JSONToXML(oJSON.%ToJSON(), "Test1", .tXML1)
        Quit:$System.Status.IsError(tSC)
        Write tXML1
        
        Write !!
        Set oJSON2={"Prop1":"Value1","Prop2":2,"List":["Item1","Item2","Item3"]}
        Set tSC = ..JSONToXML(oJSON2.%ToJSON(), "Test2", .tXML2)
        Quit:$System.Status.IsError(tSC)
        Write tXML2
        
        Write !!
        Set oJSON3={
                "name":"John",
                "age":30,
                "cars": [
                    { "name":"Ford", "models":[ "Fiesta", "Focus", "Mustang" ] },
                    { "name":"BMW", "models":[ "320", "X3", "X5" ] },
                    { "name":"Fiat", "models":[ "500", "Panda" ] }
                ]
             }
        Set tSC = ..JSONToXML(oJSON3.%ToJSON(), "Test3", .tXML3)
        Quit:$System.Status.IsError(tSC)
        Write tXML3

    }
    Catch (oException)
    {
        Set tSC =oException.AsStatus()
    }
    
    Do $System.Status.DisplayError(tSC)
}

ClassMethod JSONToXML(pJSONString As %String, pRootElementName As %String, Output pXMLString As %String) As %Status
{
        Set tSC = $System.Status.OK()
        Try
        {
            Set oJSON = ##class(%Library.DynamicObject).%FromJSON(pJSONString)
            
            Set pXMLString="<?xml version=""1.0"" encoding=""utf-8""?>"_$C(13,10)
            Set pXMLString=pXMLString_"<"_pRootElementName_">"_$C(13,10)
            
            Set tSC = ..ConvertFromJSONObjectToXMLString(oJSON, .pXMLString)
            Quit:$System.Status.IsError(tSC)
            
            Set pXMLString=pXMLString_"</"_pRootElementName_">"_$C(13,10)
        }
        Catch (oException)
        {
            Set tSC = oException.AsStatus()
        }
        
        Quit tSC
}

ClassMethod ConvertFromJSONObjectToXMLString(pJSONObject As %Library.DynamicAbstractObject, Output pXMLString As %String) As %Status
{
        Set tSC = $System.Status.OK()
        Try
        {
            Set iterator = pJSONObject.%GetIterator()
            
            While iterator.%GetNext(.key, .value)
            {
                Set tXMLKey=$TR(key," ")
                Set pXMLString=pXMLString_"<"_tXMLKey_">"
                
                If value'=""
                {
                    If '$IsObject(value)
                    {
                        Set pXMLString=pXMLString_value
                    }
                    Else
                    {
                        Set pXMLString=pXMLString_$C(13,10)
                        If value.%ClassName()="%DynamicObject"
                        {
                            Set tSC = ..ConvertFromJSONObjectToXMLString(value, .pXMLString)
                            Quit:$System.Status.IsError(tSC)                            
                        }
                        ElseIf value.%ClassName()="%DynamicArray"
                        {
                            Set arrayIterator = value.%GetIterator()
                                        
                            While arrayIterator.%GetNext(.arrayKey, .arrayValue)
                            {
                                Set pXMLString=pXMLString_"<"_tXMLKey_"Item key="""_arrayKey_""">"
                                If '$IsObject(arrayValue)
                                {
                                    Set pXMLString=pXMLString_arrayValue
                                }
                                Else
                                {                                    
                                    Set tSC = ..ConvertFromJSONObjectToXMLString(arrayValue, .pXMLString)
                                    Quit:$System.Status.IsError(tSC)                            
                                }
                                Set pXMLString=pXMLString_"</"_tXMLKey_"Item>"_$C(13,10)
                            }
                            Quit:$System.Status.IsError(tSC)
                        }
                    }
                }
                
                Set pXMLString=pXMLString_"</"_tXMLKey_">"_$C(13,10)
            } //While
        }
        Catch (oException)
        {
            Set tSC = oException.AsStatus()
        }
        
        Quit tSC
}

}

Here is the output:

Do ##class(Util.JSONToXML).Test()
<?xml version="1.0" encoding="utf-8"?>
<Test1>
<Prop1>Value1</Prop1>
<Prop2>2</Prop2>
</Test1>
 
 
<?xml version="1.0" encoding="utf-8"?>
<Test2>
<Prop1>Value1</Prop1>
<Prop2>2</Prop2>
<List>
<ListItem key="0">Item1</ListItem>
<ListItem key="1">Item2</ListItem>
<ListItem key="2">Item3</ListItem>
</List>
</Test2>
 
 
<?xml version="1.0" encoding="utf-8"?>
<Test3>
<name>John</name>
<age>30</age>
<cars>
<carsItem key="0"><name>Ford</name>
<models>
<modelsItem key="0">Fiesta</modelsItem>
<modelsItem key="1">Focus</modelsItem>
<modelsItem key="2">Mustang</modelsItem>
</models>
</carsItem>
<carsItem key="1"><name>BMW</name>
<models>
<modelsItem key="0">320</modelsItem>
<modelsItem key="1">X3</modelsItem>
<modelsItem key="2">X5</modelsItem>
</models>
</carsItem>
<carsItem key="2"><name>Fiat</name>
<models>
<modelsItem key="0">500</modelsItem>
<modelsItem key="1">Panda</modelsItem>
</models>
</carsItem>
</cars>
</Test3>

Hi!

I am not sure if I understood your questions. But here is an explanation that may help you...

If you want to run a SQL query filtering by a date

Let's take Sample.Person class on the SAMPLES namespace as an example. There is a DOB (date of birth) field of type %Date. This stores dates in the $Horolog format of Caché (an integer that counts the number of dates since 12/32/1940.

If your date is in the format DD/MM/YYYY (for instance), you can use TO_DATE() function to run your query and convert this date string to the $Horolog number:

select * from Sample.Person where DOB=TO_DATE('27/11/1950','DD/MM/YYYY')

That will work independently of the runtime mode you are on (Display, ODBC or Logical).

On the other hand, if you are running your query with Runtime Select Mode ODBC, you could reformat your date string to the ODBC format (YYYY-MM-DD) and don't use TO_DATE():

select * from Sample.Person where DOB='1950-11-27'

That still is converting the string '1950-11-27' to the internal $Horolog number that is:

USER>w $ZDateH("1950-11-27",3)

40142

If you already has the date on the internal $Horolog format you could run your query using Runtime Select Mode Logical:

select * from Sample.Person where DOB=40142

You can try these queries on the management portal. Just remember changing the 

If you are using dynamic queries with %Library.ResultSet or %SQL.Statement, set the Runtime Mode (%SelectMode property on %SQL.Statement) before running your query.

If you want to find records from a moving window of 30 days

The previous query brought, on my system, the person "Jafari,Zeke K.".  He was born on 1950-11-27. The following query will bring all people that was born on '1950-11-27' and 30 days before '1950-11-27'. I will use DATE_ADD function to calculate this window. I have also selected ODBC Runtime Select Mode to run the query:

select Name, DOB from Sample.Person where DOB between DATEADD(dd,-30,'1950-11-27') and '1950-11-27'

Two people will appear on my system: Jafari and Quixote. Quixote was born '1950-11-04'. That is inside the window. 

Moving window with current_date

You can use current_date to write queries such as "who has been born between today and 365 days ago?":

select Name, DOB from Sample.Person where DOB between DATEADD(dd,-365,current_date) and current_date

Using greater than or less than

You can also use >, >=, < or <= with dates like this:

select Name, DOB from Sample.Person where DOB >= DATEADD(dd,-365,current_date) 

Just be careful with the Runtime Select Mode. The following works with ODBC Runtime Select Mode, but won't work with Display or Logical Mode:

select Name, DOB from Sample.Person where DOB >= DATEADD(dd,-30,'1950-11-27') and DOB<='1950-11-27'

To make this work with Logical Mode, you would have to apply TO_DATE to the dates first:

select Name, DOB from Sample.Person where DOB >= DATEADD(dd,-30,TO_DATE('1950-11-27','YYYY-MM-DD')) and DOB<=TO_DATE('1950-11-27','YYYY-MM-DD')

To make it work with display mode, format the date accordingly to your NLS configuration. Mine would be 'DD/MM/YYYY' because I am using a spanish location.