/*******************************************************************************
    * SAT4J: a SATisfiability library for Java Copyright (C) 2004, 2012 Artois University and CNRS
    *
    * All rights reserved. This program and the accompanying materials
    * are made available under the terms of the Eclipse Public License v1.0
    * which accompanies this distribution, and is available at
    *  http://www.eclipse.org/legal/epl-v10.html
    *
    * Alternatively, the contents of this file may be used under the terms of
   * either the GNU Lesser General Public License Version 2.1 or later (the
   * "LGPL"), in which case the provisions of the LGPL are applicable instead
   * of those above. If you wish to allow use of your version of this file only
   * under the terms of the LGPL, and not to allow others to use your version of
   * this file under the terms of the EPL, indicate your decision by deleting
   * the provisions above and replace them with the notice and other provisions
   * required by the LGPL. If you do not delete the provisions above, a recipient
   * may use your version of this file under the terms of the EPL or the LGPL.
   *
   * Based on the original MiniSat specification from:
   *
   * An extensible SAT solver. Niklas Een and Niklas Sorensson. Proceedings of the
   * Sixth International Conference on Theory and Applications of Satisfiability
   * Testing, LNCS 2919, pp 502-518, 2003.
   *
   * See www.minisat.se for the original solver in C++.
   *
   * Contributors:
   *   CRIL - initial API and implementation
   *******************************************************************************/
  package org.sat4j.pb.tools;
  
  import java.math.BigInteger;
  
  import org.sat4j.core.ASolverFactory;
  import org.sat4j.core.ConstrGroup;
  import org.sat4j.pb.IPBSolver;
  import org.sat4j.pb.ObjectiveFunction;
  import org.sat4j.specs.ContradictionException;
  import org.sat4j.specs.IConstr;
  import org.sat4j.specs.IVec;
  import org.sat4j.specs.IVecInt;
  import org.sat4j.tools.ManyCore;
  
  public class ManyCorePB extends ManyCore<IPBSolver> implements IPBSolver {
  
      /**
  	 * 
  	 */
      private static final long serialVersionUID = 1L;
  
      public ManyCorePB(ASolverFactory<IPBSolver> factory, String... solverNames) {
          super(factory, solverNames);
      }
  
      public ManyCorePB(IPBSolver... iSolver) {
          super(iSolver);
      }
  
      public IConstr addPseudoBoolean(IVecInt lits, IVec<BigInteger> coeffs,
              boolean moreThan, BigInteger d) throws ContradictionException {
          ConstrGroup group = new ConstrGroup(false);
          for (int i = 0; i < this.numberOfSolvers; i++) {
              group.add(this.solvers.get(i).addPseudoBoolean(lits, coeffs,
                      moreThan, d));
          }
          return group;
      }
  
      public void setObjectiveFunction(ObjectiveFunction obj) {
          for (int i = 0; i < this.numberOfSolvers; i++) {
              this.solvers.get(i).setObjectiveFunction(obj);
          }
      }
  
      public ObjectiveFunction getObjectiveFunction() {
          return this.solvers.get(0).getObjectiveFunction();
      }
  
      public IConstr addAtMost(IVecInt literals, IVecInt coeffs, int degree)
              throws ContradictionException {
          ConstrGroup group = new ConstrGroup(false);
          for (int i = 0; i < this.numberOfSolvers; i++) {
              group.add(this.solvers.get(i).addAtMost(literals, coeffs, degree));
          }
          return group;
      }
  
      public IConstr addAtMost(IVecInt literals, IVec<BigInteger> coeffs,
              BigInteger degree) throws ContradictionException {
          ConstrGroup group = new ConstrGroup(false);
          for (int i = 0; i < this.numberOfSolvers; i++) {
              group.add(this.solvers.get(i).addAtMost(literals, coeffs, degree));
          }
          return group;
      }
  
      public IConstr addAtLeast(IVecInt literals, IVecInt coeffs, int degree)
              throws ContradictionException {
          ConstrGroup group = new ConstrGroup(false);
         for (int i = 0; i < this.numberOfSolvers; i++) {
             group.add(this.solvers.get(i).addAtLeast(literals, coeffs, degree));
         }
         return group;
     }
 
     public IConstr addAtLeast(IVecInt literals, IVec<BigInteger> coeffs,
             BigInteger degree) throws ContradictionException {
         ConstrGroup group = new ConstrGroup(false);
         for (int i = 0; i < this.numberOfSolvers; i++) {
             group.add(this.solvers.get(i).addAtLeast(literals, coeffs, degree));
         }
         return group;
     }
 
     public IConstr addExactly(IVecInt literals, IVecInt coeffs, int weight)
             throws ContradictionException {
         ConstrGroup group = new ConstrGroup(false);
         for (int i = 0; i < this.numberOfSolvers; i++) {
             group.add(this.solvers.get(i).addExactly(literals, coeffs, weight));
         }
         return group;
     }
 
     public IConstr addExactly(IVecInt literals, IVec<BigInteger> coeffs,
             BigInteger weight) throws ContradictionException {
         ConstrGroup group = new ConstrGroup(false);
         for (int i = 0; i < this.numberOfSolvers; i++) {
             group.add(this.solvers.get(i).addExactly(literals, coeffs, weight));
         }
         return group;
     }
 
 }