/*

  * Created on 11.04.2008

  *

  */

 package net.sourceforge.combean.mathprog.linalg.statics;

 import net.sourceforge.combean.interfaces.mathprog.linalg.SparseVec;

 import net.sourceforge.combean.interfaces.mathprog.linalg.VectorIterator;

 import net.sourceforge.combean.interfaces.mathprog.linalg.VectorValue;

 /**

  * Collection of static utility methods for representing sparse vectors as strings.

  * 

  * @author schickin

  *

  */

 public class SparseVectorStringifier {

     /**

      * Represent a sparse vector as string

      * 

      * @param <Label>

      * @param svec the sparse vector to be converted to a string

      * @return string representation of svec

      */

     public static <Label> String convertToString(SparseVec<Label> svec) {

         StringBuffer result = new StringBuffer();

         result.append("LPSparseVector { ");

         result.append(" values {");

         VectorIterator<Label> itVec = svec.iterator();

         while (itVec.hasNext()) {

             VectorValue<Label> val = itVec.next();

             result.append(" " + val.label() + "[" + val.index() + "]=" +

                     val.doubleValue());

         }

         result.append(" } }");

         return result.toString();

     }

 }