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PODynamic calculation over dataset by providing logic externally
 

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  1. PODynamic calculation over dataset by providing logic externally
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    <p>I am doing some mathematical operation on a data set. As per the requirement of the project, the mathematical formula/logic can be changed at any time. So I am thinking to keep these formals out from the Java code, may be in config file. Below is the sample config file-</p> <p><code>formula.properties</code> file-</p> <pre><code>formula_a=(a+b)/(7*c+b^2) formula_b=(a^(1/2)-formula_a*13) formula_c=spilt_time(formula_b,a,b) </code></pre> <p><code>Calculator.java</code> (A dummy Java file, which may not be correct as Its for demo purpose only)</p> <pre><code>public class Calculator { private final static String FORMULA_A = "formula_a"; private final static String FORMULA_B = "formula_b"; private final static String FORMULA_C = "formula_c"; public static void main(String[] args) { long a = 1738342634L; long b = 273562347895L; long c = 89346755249L; long ansFromFormulaA = applyFormulaFromConfig(FORMULA_A, new long[] { a, b, c }); long ansFromFormulaB = applyFormulaFromConfig(FORMULA_B, new long[] { a, b, c }); long ansFromFormulaC = applyFormulaFromConfig(FORMULA_C, new long[] { a, b }); } // spilt_time is used in formula_c public static long[] spilt_time(long[] params) { final long[] split = new long[2]; // Some logic here which is applied on params array and answer is pushed // into split array return split; } private static long applyFormulaFromConfig(String formulaName, long[] params) { long ans = 0L; // Read formula from property file here and apply the params over it and // return the answer return ans; } } </code></pre> <p>Please help me to design a solution for this.</p>
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    1. USRavi Joshi
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    1. COYou've essentially done nothing. By now, you should know that SO is not a coding service.
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      1. USSteve P.
    2. CO@SteveP.: I not asking for anybody to Code. I am just asking about the suggestions while designing this framework.
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      1. USRavi Joshi
    3. COBut that's not really what SO is for.
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