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From er...@apache.org
Subject svn commit: r1374054 - in /commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss: LegendreHighPrecisionRuleFactory.java LegendreRuleFactory.java
Date Thu, 16 Aug 2012 21:00:39 GMT
Author: erans
Date: Thu Aug 16 21:00:39 2012
New Revision: 1374054

URL: http://svn.apache.org/viewvc?rev=1374054&view=rev
Log:
Precondition check.

Modified:
    commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
    commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreRuleFactory.java

Modified: commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
URL: http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java?rev=1374054&r1=1374053&r2=1374054&view=diff
==============================================================================
--- commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
(original)
+++ commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
Thu Aug 16 21:00:39 2012
@@ -19,6 +19,8 @@ package org.apache.commons.math3.analysi
 import java.math.MathContext;
 import java.math.BigDecimal;
 import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math3.exception.NotStrictlyPositiveException;
+import org.apache.commons.math3.exception.util.LocalizedFormats;
 
 /**
  * Factory that creates Gauss-type quadrature rule using Legendre polynomials.
@@ -63,6 +65,11 @@ public class LegendreHighPrecisionRuleFa
      */
     @Override
     protected Pair<BigDecimal[], BigDecimal[]> computeRule(int numberOfPoints) {
+        if (numberOfPoints <= 0) {
+            throw new NotStrictlyPositiveException(LocalizedFormats.NUMBER_OF_POINTS,
+                                                   numberOfPoints);
+        }
+
         if (numberOfPoints == 1) {
             // Break recursion.
             return new Pair<BigDecimal[], BigDecimal[]>(new BigDecimal[] { BigDecimal.ZERO
},

Modified: commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreRuleFactory.java
URL: http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreRuleFactory.java?rev=1374054&r1=1374053&r2=1374054&view=diff
==============================================================================
--- commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreRuleFactory.java
(original)
+++ commons/proper/math/trunk/src/main/java/org/apache/commons/math3/analysis/integration/gauss/LegendreRuleFactory.java
Thu Aug 16 21:00:39 2012
@@ -17,6 +17,8 @@
 package org.apache.commons.math3.analysis.integration.gauss;
 
 import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math3.exception.NotStrictlyPositiveException;
+import org.apache.commons.math3.exception.util.LocalizedFormats;
 
 /**
  * Factory that creates Gauss-type quadrature rule using Legendre polynomials.
@@ -35,6 +37,11 @@ public class LegendreRuleFactory extends
      */
     @Override
     protected Pair<Double[], Double[]> computeRule(int numberOfPoints) {
+        if (numberOfPoints <= 0) {
+            throw new NotStrictlyPositiveException(LocalizedFormats.NUMBER_OF_POINTS,
+                                                   numberOfPoints);
+        }
+
         if (numberOfPoints == 1) {
             // Break recursion.
             return new Pair<Double[], Double[]>(new Double[] { 0d },



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