/*

  * Created on 24.03.2008

  *

  */

 package net.sourceforge.combean.mathprog.lp.model;

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

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

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

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

 import net.sourceforge.combean.interfaces.mathprog.lp.model.LPSparseVector;

 import net.sourceforge.combean.interfaces.mathprog.lp.model.LPVectorLabel;

 import net.sourceforge.combean.interfaces.mathprog.lp.model.NoLabel;

 import net.sourceforge.combean.mathprog.linalg.DoubleVectorValue;

 public class SparseVectorAsLPVector

 implements LPSparseVector {

     protected LPVectorLabelImpl label;

     private SparseVector wrappedVec;

     /**

      * @param wrappedVec

      */

     public SparseVectorAsLPVector(SparseVector wrappedVec,

             String offsetId, VectorOrientation orientation) {

         super();

         this.wrappedVec = wrappedVec;

         this.label = new LPVectorLabelImpl(offsetId, orientation);

     }

     public int getDimension() {

         return this.wrappedVec.getDimension();

     }

     public VectorIterator<LPVectorLabel> iterator() {

         return new VectorIteratorAsLPVectorIterator(

                 this.wrappedVec.iterator());

     }

     public int getNumIterations() {

         return this.wrappedVec.getNumIterations(); 

     }

     public String toString() {

         return "sparseVec { label {" + this.label + "}" +

         " svec {" + this.wrappedVec + "} }";

     }

     private class VectorIteratorAsLPVectorIterator

     implements VectorIterator<LPVectorLabel> {

         private VectorIterator<NoLabel> wrappedIt;

         /**

          * @param wrappedIt

          */

         public VectorIteratorAsLPVectorIterator(

                 VectorIterator<NoLabel> wrappedIt) {

             super();

             this.wrappedIt = wrappedIt;

         }

         /* (non-Javadoc)

          * @see net.sourceforge.combean.interfaces.mathprog.linalg.VectorIterator#next()

          */

         public VectorValue<LPVectorLabel> next() {

             VectorValue<NoLabel> wrappedVal = this.wrappedIt.next();

              return new DoubleVectorValue<LPVectorLabel>(

                      wrappedVal.index(), wrappedVal.doubleValue(),

                      SparseVectorAsLPVector.this.label);

         }

         /* (non-Javadoc)

          * @see java.util.Iterator#hasNext()

          */

         public boolean hasNext() {

             return this.wrappedIt.hasNext();

         }

         /* (non-Javadoc)

          * @see java.util.Iterator#remove()

          */

         public void remove() {

             this.wrappedIt.remove();

         }

     }

 }