Coverage Report - org.apache.commons.math.util.DefaultTransformer

Classes in this File Line Coverage Branch Coverage Complexity
DefaultTransformer
100% 
100% 
8

 1  
 /*
 2  
  * Copyright 2003-2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 
 17  
 package org.apache.commons.math.util;
 18  
 
 19  
 import java.io.Serializable;
 20  
 
 21  
 import org.apache.commons.math.MathException;
 22  
 
 23  
 /**
 24  
  * A Default NumberTransformer for java.lang.Numbers and Numeric Strings. This 
 25  
  * provides some simple conversion capabilities to turn any java/lang.Number 
 26  
  * into a primitive double or to turn a String representation of a Number into 
 27  
  * a double.
 28  
  *
 29  
  * @version $Revision$ $Date: 2005-02-26 05:11:52 -0800 (Sat, 26 Feb 2005) $
 30  
  */
 31  64
 public class DefaultTransformer implements NumberTransformer, Serializable {
 32  
     
 33  
     /** Serializable version identifier */
 34  
     static final long serialVersionUID = 4019938025047800455L;
 35  
     
 36  
     /**
 37  
      * @param o  the object that gets transformed.
 38  
      * @return a double primitive representation of the Object o.
 39  
      * @throws org.apache.commons.math.MathException If it cannot successfully 
 40  
      * be transformed or is null.
 41  
      * @see org.apache.commons.collections.Transformer#transform(java.lang.Object)
 42  
      */
 43  
     public double transform(Object o) throws MathException{
 44  
 
 45  406
         if (o == null) {
 46  2
             throw new MathException("Conversion Exception in Transformation, Object is null");
 47  
         }
 48  
 
 49  404
         if (o instanceof Number) {
 50  272
             return ((Number)o).doubleValue();
 51  
         }
 52  
             
 53  
         try {
 54  132
             return new Double(o.toString()).doubleValue();
 55  2
         } catch (Exception e) {
 56  2
             throw new MathException("Conversion Exception in Transformation: " + e.getMessage(), e);
 57  
         }
 58  
     }
 59  
 }