Flow or java service?

, ,
1

Hi,

I have to write a service for the following rule

If a = 0 then b=VALUE
If Value.Length > a then insert “.” at position (Value.length-a)
if Value.Length <= a then concat “0.” and x times “0” (where x=a-value.length) and VALUE.

For eg.:
VALUE=2846 and a=2 then the output should be 28.46
and if VALUE=870 and a=5 then the output should be 0.00870.

is there any method of doing this in flow? or its only possible with java? what shud be the logic for java service?

2

There is no problem to do this in flow :wink:

3

Noramlly I’d say write it using FLOW. But in this case you can leverage the BigDecimal class to do this for you. Take a look at the moveDecimalLeft method.

Structure the service this way:

name: movePointLeft
inputs: value, n (both as strings)
outputs: value (a string)

Get value and n from the pipeline using IDataUtil methods (getString and getInt respectively)
Create a new BigDecimal object, passing value to the constructor
Call the BigDecimal.movePointLeft method, passing n
Call the BigDecimal.toString method and put the returned string in the var named value in the pipeline