As part of our Cleo Clarify JAVA V2 series, we are teaching users different ways to use Cleo Clarify JAVA Ruleset Actions.

JAVA Scenario:

The Cleo Clarify developer wants to right justify a numeric value and return value as a string. This is a possible scenario when the source field is numeric and the target is a string field.

The JAVA program (below) will accept 4 input values and will return one output value

JAVA Set-up

Example 1: Right Justified output with no decimals

Inputs: input: 123, length: 10, decimals: 0

Result: “       123”

Example 2: Right justified output with decimals

Inputs: input: 123, length: 10, decimals: 2

Result: “    123.00”

Example 3: Input with decimals and more precision needed

Inputs: input: 123.12, length: 10, decimals: 4

Result: “  123.1200”

Example 4: Input with decimals - but no decimal length specified

Inputs: input: 123.12, length: 10, decimals: 0

Result: “       123”

JAVA Program:

/*** @author AR

package com.abc.core;

import java.math.BigDecimal;

import java.util.Formatter;

import com.extol.ebi.lang.annotations.EbiName;

import com.extol.ebi.reactor.lib.AbstractAction;

@EbiName(“Number Right justify - Returns String”)
public class NumberRightJustify extends AbstractAction{

String outputStr = “”;
int strLength = 1; //default to at least 1 char
int decimalLength = 0;
BigDecimal inputVal;
Formatter fmt;

//com.extol.ebi.ruleset.lang.core.String output;

public com.extol.ebi.ruleset.lang.core.String execute (
@EbiName(“input”) com.extol.ebi.ruleset.lang.core.Number input,
@EbiName(“length”) com.extol.ebi.ruleset.lang.core.Number length,
@EbiName(“decimals”) com.extol.ebi.ruleset.lang.core.Number decimals

) {

//get field length only when provided
if (length != null) {
strLength = length.asJavaInteger().intValue();
}

//Check if output needs decimals
if (decimals !=null) {
decimalLength = decimals.asJavaInteger().intValue();
}

if(input !=null) {
inputVal = new BigDecimal(input.asBigDecimal().toString());

fmt = new Formatter();

fmt.format(“%”+strLength+“.”+decimalLength+“f”, inputVal);

outputStr = fmt.toString();
}

return this.asString(outputStr);
}

}